diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8925072c..498f91e8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,7 +5,7 @@ if (CMAKE_VERSION GREATER_EQUAL 3.12)
   cmake_policy(SET CMP0075 NEW)
 endif (CMAKE_VERSION GREATER_EQUAL 3.12)
 
-project(musrfit VERSION 1.6.4 LANGUAGES C CXX)
+project(musrfit VERSION 1.6.5 LANGUAGES C CXX)
 
 #--- musrfit specific options -------------------------------------------------
 option(dks "build musrfit with DKS (GPU/MIC) support" ON)
@@ -150,49 +150,60 @@ endif (DKS_FOUND)
 if (qt_based_tools)
   # check for any Qt, i.e. AUTO
   if (qt_version STREQUAL AUTO)
-    # first try Qt5
-    # Find the QtCore library
-    find_package(Qt5Core)
-    if (Qt5Core_FOUND)
-      # Find the QtWidgets library
-      find_package(Qt5Widgets CONFIG REQUIRED)
-      # Find the QtXml library
-      find_package(Qt5Xml CONFIG REQUIRED)
-      # Find the QtNetwork library
-      find_package(Qt5Network CONFIG REQUIRED)
-      # Find the QtSvg library
-      find_package(Qt5Svg CONFIG REQUIRED)
-      # Fing the QtPrintSupport
-      find_package(Qt5PrintSupport CONFIG REQUIRED)
-    endif (Qt5Core_FOUND)
+    # try Qt6
+    find_package(Qt6Core)
+    if (Qt6Core_FOUND)
+      find_package(Qt6Widgets CONFIG REQUIRED)
+      find_package(Qt6Xml CONFIG REQUIRED)
+      find_package(Qt6Network CONFIG REQUIRED)
+      find_package(Qt6Svg CONFIG REQUIRED)
+      find_package(Qt6PrintSupport CONFIG REQUIRED)      
+    endif (Qt6Core_FOUND)
+    # try Qt5
+    if (NOT Qt6Core_FOUND)
+      find_package(Qt5Core)
+      if (Qt5Core_FOUND)
+        find_package(Qt5Widgets CONFIG REQUIRED)
+        find_package(Qt5Xml CONFIG REQUIRED)
+        find_package(Qt5Network CONFIG REQUIRED)
+        find_package(Qt5Svg CONFIG REQUIRED)
+        find_package(Qt5PrintSupport CONFIG REQUIRED)
+      endif (Qt5Core_FOUND)
+    endif (NOT Qt6Core_FOUND)
 
-    # if Qt5 is not found, try Qt4
-    if (NOT Qt5Core_FOUND)
+    # if Qt6 and Qt5 is not found, try Qt4
+    if (NOT Qt6Core_FOUND AND NOT Qt5Core_FOUND)
       find_package(Qt4 COMPONENTS QtGui QtWebKit QtXml)
-    endif (NOT Qt5Core_FOUND)
+    endif (NOT Qt6Core_FOUND AND NOT Qt5Core_FOUND)
 
-    # if Qt5 and Qt4 is not found try Qt3. Hopefully you never reach this point
-    if (NOT Qt5Core_FOUND)
-      if (NOT Qt4_FOUND)
-        find_package(Qt3)
-      endif (NOT Qt4_FOUND)
-    endif (NOT Qt5Core_FOUND)
+    # if Qt6, Qt5 and Qt4 is not found try Qt3. Hopefully you never reach this point
+    if (NOT Qt6Core_FOUND AND NOT Qt5Core_FOUND AND Qt4_FOUND)
+      find_package(Qt3)
+    endif (NOT Qt6Core_FOUND AND NOT Qt5Core_FOUND AND Qt4_FOUND)
   endif (qt_version STREQUAL AUTO)
 
-  # check specifically for Qt5
+  # check specifically for Qt6
+  if (qt_version STREQUAL 6)
+    find_package(Qt6Core)
+    if (Qt6Core_FOUND)
+      find_package(Qt6Widgets CONFIG REQUIRED)
+      find_package(Qt6Xml CONFIG REQUIRED)
+      find_package(Qt6Network CONFIG REQUIRED)
+      find_package(Qt6Svg CONFIG REQUIRED)
+      find_package(Qt6PrintSupport CONFIG REQUIRED)
+    else (Qt6Core_FOUND)
+      message(FATAL_ERROR "Couldn't find the specifically requested Qt6 version.")
+    endif (Qt6Core_FOUND)
+  endif (qt_version STREQUAL 6)
+
+ # check specifically for Qt5
   if (qt_version STREQUAL 5)
-    # Find the QtCore library
     find_package(Qt5Core)
     if (Qt5Core_FOUND)
-      # Find the QtWidgets library
       find_package(Qt5Widgets CONFIG REQUIRED)
-      # Find the QtXml library
       find_package(Qt5Xml CONFIG REQUIRED)
-      # Find the QtNetwork library
       find_package(Qt5Network CONFIG REQUIRED)
-      # Find the QtSvg library
       find_package(Qt5Svg CONFIG REQUIRED)
-      # Fing the QtPrintSupport
       find_package(Qt5PrintSupport CONFIG REQUIRED)
     else (Qt5Core_FOUND)
       message(FATAL_ERROR "Couldn't find the specifically requested Qt5 version.")
@@ -288,17 +299,21 @@ endif (nexus)
 
 message("")
 if (qt_based_tools)
-  if (Qt5Core_FOUND)
-    message(" Qt      found in  ${Qt5Core_INCLUDE_DIRS} (Version: ${Qt5Core_VERSION})")
-  else (Qt5Core_FOUND)
-    if (Qt4_FOUND)
-      message(" Qt      found (Version: ${QT_VERSION_MAJOR}.${QT_VERSION_MINOR}.${QT_VERSION_PATCH})")
-    else (Qt4_FOUND)
-      if (QT_FOUND)
-        message(" Qt      found (Version: ${QT_VERSION})")
-      endif (QT_FOUND)
-    endif (Qt4_FOUND)
-  endif (Qt5Core_FOUND)
+  if (Qt6Core_FOUND)	
+    message(" Qt      found in  ${Qt6Core_INCLUDE_DIRS} (Version: ${Qt6Core_VERSION})")
+  else (Qt6Core_FOUND)
+    if (Qt5Core_FOUND)
+      message(" Qt      found in  ${Qt5Core_INCLUDE_DIRS} (Version: ${Qt5Core_VERSION})")
+    else (Qt5Core_FOUND)
+      if (Qt4_FOUND)
+        message(" Qt      found (Version: ${QT_VERSION_MAJOR}.${QT_VERSION_MINOR}.${QT_VERSION_PATCH})")
+      else (Qt4_FOUND)
+        if (QT_FOUND)
+          message(" Qt      found (Version: ${QT_VERSION})")
+        endif (QT_FOUND)
+      endif (Qt4_FOUND)
+    endif (Qt5Core_FOUND)
+  endif (Qt6Core_FOUND)
 endif (qt_based_tools)
 message("")
 message(" Features:")
@@ -336,25 +351,27 @@ else (BNMRlibs)
 endif (BNMRlibs)
 
 if (qt_based_tools)
-if (Qt5Core_FOUND)
+if (Qt6Core_FOUND)
+  message("")
+  message(" Qt6 based tools:")
+  message("   musredit, musrStep, musrWiz, mupp  : yes")
+elseif (Qt5Core_FOUND)
   message("")
   message(" Qt5 based tools:")
   message("   musredit, musrStep, musrWiz, mupp  : yes")
-endif (Qt5Core_FOUND)
-if (Qt4_FOUND)
+elseif (Qt4_FOUND)
   message("")
   message(" Qt4 based tools (deprecated):")
   message("   musredit                           : yes")
-endif (Qt4_FOUND)
-if (QT_FOUND)
+else ()
   message("")
   message(" Qt3 based tools (outdated):")
   message("   musrgui                            : yes")
-endif (QT_FOUND)
-if (NOT Qt5Core_FOUND AND NOT Qt4_FOUND AND NOT QT_FOUND)
+endif ()
+if (NOT Qt6Core_FOUND AND NOT Qt5Core_FOUND AND NOT Qt4_FOUND AND NOT QT_FOUND)
   message("")
   message(" NO Qt based tools will be installed since Qt is not found or not installed on the system")
-endif (NOT Qt5Core_FOUND AND NOT Qt4_FOUND AND NOT QT_FOUND)
+endif (NOT Qt6Core_FOUND AND NOT Qt5Core_FOUND AND NOT Qt4_FOUND AND NOT QT_FOUND)
 else (qt_based_tools)
   message("")
   message(" Qt based tools (musredit, musrStep, musrWiz, mupp) have been disabled")
diff --git a/ChangeLog b/ChangeLog
index 97be543f..41be0adc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -12,6 +12,11 @@ or
 
 https://bitbucket.org/muonspin/musrfit/commits/all
 
+Release of V1.6.5, 2021/01/22
+=============================
+
+Add Qt6 version of musredit, mupp, etc.
+
 Release of V1.6.4, 2020/08/29
 =============================
 
diff --git a/cmake/CPackOptions.cmake.in b/cmake/CPackOptions.cmake.in
index 8ca0a012..4858f338 100644
--- a/cmake/CPackOptions.cmake.in
+++ b/cmake/CPackOptions.cmake.in
@@ -24,12 +24,12 @@ set (CPACK_SET_DESTDIR "OFF")
 set (CPACK_PACKAGE_RELOCATABLE "true")
 
 if (${CPACK_GENERATOR} STREQUAL "RPM")
-  set (CPACK_RPM_PACKAGE_REQUIRES "root >= 6.16.00") 
+  set (CPACK_RPM_PACKAGE_REQUIRES "root >= 6.22.00") 
   set (CPACK_INSTALL_PREFIX "@CMAKE_INSTALL_PREFIX@")
   set (CPACK_PACKAGING_INSTALL_PREFIX "@CMAKE_INSTALL_PREFIX@")
   set (CPACK_RPM_FILE_NAME "RPM-DEFAULT")
   set (CPACK_RPM_PACKAGE_RELEASE "1")
-  # next variable for RHEL, CentOS, Fedfora
+  # next variable for RHEL, CentOS, Fedora
   set (CPACK_RPM_PACKAGE_RELEASE_DIST "")
   set (CPACK_RPM_PACKAGE_LICENSE "GPLv2")
   set (CPACK_RPM_PACKAGE_VENDOR "Paul Scherrer Institute - LMU - LEM")
diff --git a/doc/html/.buildinfo b/doc/html/.buildinfo
index c607e418..335c2894 100644
--- a/doc/html/.buildinfo
+++ b/doc/html/.buildinfo
@@ -1,4 +1,4 @@
 # Sphinx build info version 1
 # This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
-config: 0b93e4185566cd2a81b86f199313e66e
+config: eec60d1156b3ecdeb8b69fcbd6a0b13b
 tags: 645f666f9bcd5a90fca523b33c5a78b7
diff --git a/doc/html/_downloads/Makefile.TMyLibrary b/doc/html/_downloads/Makefile.TMyLibrary
new file mode 100644
index 00000000..73a85c8e
--- /dev/null
+++ b/doc/html/_downloads/Makefile.TMyLibrary
@@ -0,0 +1,60 @@
+#---------------------------------------------------
+# get compilation flags from root-config
+
+ROOTCFLAGS    = $(shell $(ROOTSYS)/bin/root-config --cflags)
+
+#---------------------------------------------------
+
+OS            = LINUX
+CXX           = g++
+CXXFLAGS      = -O3 -Wall -Wno-trigraphs -fPIC
+LOCALINCLUDE  = .
+ROOTINCLUDE   = $(ROOTSYS)/include
+INCLUDES      = -I$(LOCALINCLUDE) -I$(ROOTINCLUDE)
+LD            = g++
+LDFLAGS       =
+SOFLAGS       = -O -shared
+
+# the output from the root-config script:
+CXXFLAGS      += $(ROOTCFLAGS)
+LDFLAGS       +=
+
+# some definitions: headers (used to generate *Dict* stuff), sources, objects,...
+OBJS =
+OBJS += TMyFunction.o TMyLibraryDict.o
+
+SHLIB = libTMyLibrary.so
+
+# make the shared lib:
+#
+all:  $(SHLIB)
+
+$(SHLIB): $(OBJS)
+	@echo "---> Building shared library $(SHLIB) ..."
+	/bin/rm -f $(SHLIB)
+	$(LD) $(OBJS) $(SOFLAGS) -o $(SHLIB)
+	@echo "done"
+
+# clean up: remove all object file (and core files)
+# semicolon needed to tell make there is no source
+# for this target!
+#
+clean:; 	@rm -f $(OBJS) *Dict* core*
+	@echo "---> removing $(OBJS)"
+
+#
+$(OBJS): %.o: %.cpp
+	$(CXX) $(INCLUDES) $(CXXFLAGS) -c $<
+
+# Generate the ROOT CINT dictionary
+
+TMyLibraryDict.cpp: TMyFunction.h TMyLibraryLinkDef.h
+	@echo "Generating dictionary $@..."
+	rootcint -f $@ -c -p -I$(ROOTINCLUDE) $^
+
+install: all
+	@echo "Installing shared lib: libTApproximation.so"
+ifeq ($(OS),LINUX)
+	cp -pv $(SHLIB) $(ROOTSYS)/lib
+	cp -pv $(LOCALINCLUDE)/*.h $(ROOTSYS)/include
+endif
diff --git a/doc/html/_sources/acknowledgement.txt b/doc/html/_sources/acknowledgement.txt
new file mode 100644
index 00000000..7e8c47fa
--- /dev/null
+++ b/doc/html/_sources/acknowledgement.txt
@@ -0,0 +1,22 @@
+.. include:: <isogrk1.txt>
+.. index:: acknowledgment
+
+.. _acknowledgment:
+
+Acknowledgements
+================
+
+
+**Bastian M. Wojek**
+  I am very much indebted to BMW for his rigorous testing of ``musrfit``, his many useful suggestions, contributions, and for the 
+  largest part of the user manual of ``musrfit`` which makes it accessible to a broader audience! Many thanks Bastian! 
+
+**Uldis Locans**
+  I am very much indebted to Uldis work on :ref:`DKS <setup-dks>` enabling the GPU support for ``musrfit``. His kind, calm, and 
+  extremely competent way to deal with his projects as well as to deal with the chaos of physicists way to think is admirable. Many thanks Uldis!
+
+**Zaher Salman**
+  Thanks for his beta-NMR and web-interface contributions to ``musrfit``!
+
+**Robert Scheuermann**
+  Thanks for his constant contructive input on ``musrfit``! 
diff --git a/doc/html/_sources/any2many.txt b/doc/html/_sources/any2many.txt
new file mode 100644
index 00000000..6b5fd201
--- /dev/null
+++ b/doc/html/_sources/any2many.txt
@@ -0,0 +1,8 @@
+.. include:: <isogrk1.txt>
+.. index:: any2many
+
+any2many - a Universal |mgr|\SR-file-format converter
+=====================================================
+
+``any2many`` allows to convert most |mgr|\SR-file-formats from one to the other.
+For a detailed description see :ref:`here <any2many>`.
\ No newline at end of file
diff --git a/doc/html/_sources/bugtracking.txt b/doc/html/_sources/bugtracking.txt
new file mode 100644
index 00000000..55a5ff54
--- /dev/null
+++ b/doc/html/_sources/bugtracking.txt
@@ -0,0 +1,9 @@
+.. index:: bugtracking
+.. _bugtracking:
+
+Bugtracking
+===========
+
+For reporting bugs or requesting new features and improvements please use 
+the `bitbucket-repo <https://bitbucket.org/muonspin/musrfit/issues>`_ (preferred) 
+or send an e-mail to A. Suter at PSI.
diff --git a/doc/html/_sources/cite.txt b/doc/html/_sources/cite.txt
new file mode 100644
index 00000000..5a71e6f1
--- /dev/null
+++ b/doc/html/_sources/cite.txt
@@ -0,0 +1,18 @@
+.. include:: <isogrk1.txt>
+.. index:: cite
+.. _cite:
+
+How to Cite ``musrfit``?
+========================
+
+Since quite some effort is going into the development and maintenance of the ``musrfit`` package, you should at least acknowledge it in your publication if you have used it to analyze your data. Even better of course is to cite it properly by the reference given beneath 
+
+ * A.\  Suter, B.M. Wojek, "Musrfit: A Free Platform-Independent Framework for |mgr|\SR Data Analysis", Physics Procedia **30**, 69 (2012). `<http://dx.doi.org/10.1016/j.phpro.2012.04.042>`_
+
+The GPU high speed ``musrfit`` version is utilizing ``DKS``. In case you are using this version, please also add the following citations
+
+ * A.\  Adelmann, U. Locans, A. Suter, "The Dynamic Kernel Scheduler—Part 1", Computer Physics Communications **207**, 83 (2016). `<https://doi.org/10.1016/j.cpc.2016.05.013>`_
+ * U.\  Locans, *et al.*, "Real-time computation of parameter fitting and image reconstruction using graphical processing units", Computer Physics Communications **215**, 71 (2017). `<https://doi.org/10.1016/j.cpc.2017.02.007>`_
+ * U.\ Locans and A.\ Suter, "Musrfit – Real Time Parameter Fitting Using GPUs", JPS Conf. Proc. *21*, 011051 (2018). `<http://dx.doi.org/10.7566/JPSCP.21.011051>`_
+
+
diff --git a/doc/html/_sources/index.txt b/doc/html/_sources/index.txt
new file mode 100644
index 00000000..b4ed7d2f
--- /dev/null
+++ b/doc/html/_sources/index.txt
@@ -0,0 +1,31 @@
+.. musrfit docu documentation master file, created by
+   sphinx-quickstart on Sun Jun 17 11:00:32 2018.
+   You can adapt this file completely to your liking, but it should at least
+   contain the root `toctree` directive.
+
+Welcome to the musrfit documentation!
+=====================================
+
+.. toctree::
+   :maxdepth: 2
+   
+   cite
+   tutorial
+   user-manual
+   user-libs
+   setup-standard  
+   setup-dks
+   musredit
+   mupp
+   msr2data
+   any2many
+   musr-root
+   acknowledgement
+   bugtracking
+   
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`search`
diff --git a/doc/html/_sources/msr2data.txt b/doc/html/_sources/msr2data.txt
new file mode 100644
index 00000000..8e77bbca
--- /dev/null
+++ b/doc/html/_sources/msr2data.txt
@@ -0,0 +1,374 @@
+.. include:: <isogrk1.txt>
+.. index:: msr2data
+
+.. _msr2data:
+
+msr2data - A Program for Automatically Processing Multiple ``musrfit`` msr Files
+================================================================================
+
+``msr2data`` (originally written by B. M. Wojek) is a program implemented in ``C++``. Its purpose is 
+to process multiple msr files (input files for ``musrfit``) with the same parameters and summarize the fitting 
+results either in a *TRIUMF DB* [#f1]_ or a *column ASCII* file. This allows essentially to
+
+#. Collect the fit parameters.
+#. Generate *new* input msr files based on old ones.
+
+.. [#f1] For an abridged description of this format see `here <http://musr.org/xyfit/dbformat.html>`_. The DB files 
+         produced by ``msr2data`` can be viewed for instance with :ref:`mupp <mupp>` or |mgr|\View `see here <http://musr.org/muview/>`_, however, 
+         they are not completely backward-compatible to the original ``db language`` since the parameter names can be longer than five or 
+         six characters! In order to establish this backward compatibility (if needed) the user has to ensure the correct length of the 
+         parameter names in the msr files!
+
+.. _msr2data-basic-usage:         
+
+Basic Types of Usage
+--------------------
+
+Apart from numerous :ref:`optional parameters <msr2data-opt-param>` that might be set, in principle there are four different ways of calling ``msr2data``. 
+These differ in how the list of runs which should be processed is supplied: 
+
+**msr2data <run> <extension> [optional parameters]**
+  A single run number. 
+**msr2data <firstRunNo> <lastRunNo> <extension> [optional parameters]**
+  An interval of run numbers is specified through the first and the last run number. The condition ``<firstRunNo>`` < ``<lastRunNo>`` is not necessary. 
+**msr2data \[ <runList> \] <extension> [optional parameters]**
+  Where ``<runList>`` is one or a combination of the following:
+  
+  #. ``<run0>, <run1>, <run2>, ... <runN>`` : run numbers, *e.g.* 123 124, 
+  #. ``<run0>-<runN>`` : a range, *e.g.* 123-125 -> 123 124 125, 
+  #. ``<run0>:<runN>:<step>`` : a sequence, *e.g.* 123:127:2 -> 123 125 127. ``<step>`` has to be a positive integer. 
+  #. A ``<runList>`` can also combine (1)-(3), *e.g.* 123 128-130 133, etc. 
+    
+**msr2data <runListFileName> <extension> [optional parameters]**
+  An ASCII file containing a list of run numbers and optional external parameters is passed to ``msr2data``. For the structure of the ASCII file 
+  see :ref:`below <run-list-file_structure>`. 
+  
+All four basic types of calling ``msr2data`` contain the *mandatory* file-name ``<extension>`` passed right after the list of runs. The meaning of 
+this ``<extension>`` should become clear after giving examples for all four cases:
+
+.. code-block:: bash
+
+  $ msr2data 8472 _tf_h13
+  
+generates the DB file ``out.db`` (can be changed by using the -o option) from ``8472_tf_h13.msr``.   
+
+.. code-block:: bash
+
+  $ msr2data 8472 8474 _tf_h13
+  
+generates the DB file ``out.db`` (can be changed by using the -o option) from ``8472_tf_h13.msr``, ``8473_tf_h13.msr``, and ``8474_tf_h13.msr``.   
+
+.. code-block:: bash
+
+  $ msr2data [8472 8470] _tf_h13
+  
+generates the DB file ``out.db`` (can be changed by using the -o option) from ``8472_tf_h13.msr`` and ``8470_tf_h13.msr``. 
+
+.. code-block:: bash
+
+  $ msr2data [8470:8474:2] _tf_h13
+  
+generates the DB file ``out.db`` (can be changed by using the -o option) from ``8470_tf_h13.msr``, ``8472_tf_h13.msr``, and ``8474_tf_h13.msr``.   
+  
+.. _run-list-file_structure:
+
+Run List File Structure
++++++++++++++++++++++++
+
+.. code-block:: bash
+
+  $ msr2data run.list _tf_h13
+
+generates the DB file ``out.db`` (can be changed by using the -o option) from all runs listed in the ASCII file ``run.list`` in the working directory. 
+In this file it is also possible to include *external* parameters which should be put in the resulting DB file. The structure of the ``run.list`` is the following:  
+
+::
+
+  RUN VAR1 VAR2 VAR3 ...
+  8460 200 27.1 46.2 ...
+  8472 205 27.1 46.3 ...
+  8453 210 27.2 45.9 ...
+  ·     ·    ·    ·
+  ·     ·    ·    ·
+  ·     ·    ·    ·
+
+*The first not commented and not empty line determines the parameter names and labels and has to be present!*
+
+It is allowed to add comments (with a preceding '#') or empty lines to the run-list file. 
+
+The following should be mentioned together with the above examples: 
+
+* The output files in the examples above are only newly created if they did *not* exist before invoking ``msr2data``. 
+  If the files were already present the msr file data would be appended! 
+* If the files have been newly created, also the DB file header is written. If the files were present before, only 
+  the data blocks are appended. The output of the header can either be forced or completely suppressed with the ``header`` 
+  and ``noheader`` options as shall be seen later. 
+* If the ``musrfit`` output files do not have an ``<extension>`` as specified above like ``8472.msr`` one has to call ``msr2data`` like in the following example:  
+
+  .. code-block:: bash
+  
+    $ msr2data 8472 8460 "" 
+  
+.. _msr2data-opt-param:
+
+Optional Parameters
+-------------------
+
+As mentioned already above there are some optional parameters which change the behavior of ``msr2data`` and can be passed in any order. Here is a complete list: 
+
+**data**
+  The output file format is changed to a simple column ASCII file (default output file name: out.dat). 
+**new**
+  An existing output file is deleted before new information is written to it. 
+**header**
+  Force the output of the file header even if the output file was present before. 
+**noheader**
+  The output of the file header is suppressed—also if the output file is newly created.
+  If either both or none of the header options are given, ``msr2data`` writes the file header only to new files 
+  and it solely appends the data blocks to an existing output file assuming that the header is present already. 
+**nosummary**
+  There will be no attempt to read additional information like the temperature or the applied magnetic field from 
+  the data files even if these information were present there. 
+**paramList <param>**
+  option used to select the parameters which shall be exported. ``<param>`` is a list of parameter numbers to be exported. 
+  Allowed lists are: ``<startNo>-<endNo>``, *e.g.* ``1-16`` will export parameters 1 to 16. Space separated numbers, *e.g.:* ``1 3 5``. 
+  A combination of both is possible, *e.g.* ``1-16 19 31 62``, and so on. 
+**-o<outputFileName>, -o <outputFileName>**
+  The processed data will be written to the file ``<outputFileName>`` instead of the default ``out.db`` or ``out.dat``. 
+  If ``<outputFileName>`` is equal to none (case-insensitive) the parameter data are not appended to any output file. 
+**fit**
+  Additionally to the final data collection ``msr2data`` will invoke ``musrfit`` to fit the specified runs. 
+  All msr files are assumed to be present, none is newly generated! 
+**fit-<template>[!]**
+  Additionally to the final data collection ``msr2data`` will generate msr files for the runs specified in the list 
+  of runs and invoke :ref:`musrfit <musrfit>` for performing fits of the data. As template for the first run the file 
+  ``<template><extension>.msr`` (or if not available: ``<template><extension>.mlog``) is used; the subsequent input 
+  files will be created using the msr output of the last processed runs ("chain fit"). However, if for all runs only 
+  the given template should be used one has to append an exclamation mark (**!**) to the ``<template>``. 
+**msr-<template>**
+  The same as ``fit-<template>[!]``, *without* calling ``musrfit`` and the final data collection, *i.e.* only the msr files for the given runs are generated. 
+**-k**
+  If specified together with the ``fit-<template>`` option, the :ref:`- -keep-mn2-output <musrfit>` option is passed to ``musrfit``. 
+  In the case no fits should be done, this option is ignored. 
+**-t**
+  In case this option is given additionally to the ``fit-<template> option``, ``musrfit`` is called with 
+  the :ref:`- -title-from-data-file <musrfit>` option. If no fitting is done, this option is ignored. 
+
+**Examples:**
+
+In order to illustrate the usage of these parameters a few examples with explanations are given below: 
+
+.. code-block:: bash
+
+  $ msr2data 8400 8460 _tf_h13 -oABC.db fit-8472 
+  
+Using ``8472_tf_h13.msr`` as first template, ``msr2data`` generates subsequent msr input files ``8400_tf_h13.msr`` through ``8460_tf_h13.msr``, 
+calls ``musrfit`` to perform a fit of these files and collects the results of the fits together with the DB header in the new file ``ABC.db``. 
+Additionally, some information about external parameters like the temperature will be passed to ``ABC.db`` if it is present in the data files.   
+
+.. code-block:: bash
+
+  $ msr2data [8500 8502-8504 8507] _zf fit-8472 noheader nosummary -o DEF.db 
+  
+Using ``8472_zf.msr`` as first template, ``msr2data`` generates subsequent msr input files ``8500_zf.msr``, ``8502_zf.msr``, ``8503_zf.msr``, 
+``8504_zf.msr``, and ``8507_zf.msr``, calls ``musrfit`` to perform a fit of these files and collects the results of the fits in the file ``DEF.db`` 
+*without* writing the DB file header or attempting to read additional information from the data files.
+
+.. code-block:: bash
+
+  $ msr2data 8595 8585 "" noheader fit-8472! -oGHI.dat data nosummary -k 
+  
+Using ``8472.msr`` as template for all runs, ``msr2data`` generates the msr input files ``8595.msr`` through ``8585.msr``, calls ``musrfit`` with 
+the option ``--keep-mn2-ouput`` to perform a fit of these files and collects the results of the fits in the column-structured ASCII file ``GHI.dat`` 
+*without* writing any file header or attempting to read additional information from the data files.   
+
+.. code-block:: bash
+
+  $ msr2data 8472 8475 "" fit -o none
+  
+Take the *given* msr files ``8472.msr`` through ``8475.msr`` and call ``musrfit`` *without* finally summarizing the results.
+
+.. code-block:: bash
+
+  $ msr2data 8472 8475 _tf_h13 msr-8471! 
+  
+Using ``8471_tf_h13.msr`` as template for all runs, ``msr2data`` generates the msr input files ``8472_tf_h13.msr`` through ``8475_tf_h13.msr``. 
+*No fitting will be performed and no DB or ASCII output will be generated!*
+
+.. code-block:: bash
+
+  $ msr2data [8472 8475-8479] _tf_h13 paramList 1-16 data -o bestData.dat 
+  
+Will collect the parameters 1 to 16 from the msr-files ``8472_tf_h13.msr``, ``8475_tf_h13.msr``, ``8476_tf_h13.msr``, ``8477_tf_h13.msr``, ``8478_tf_h13.msr``, 
+and ``8479_tf_h13.msr`` and write these parameters into a column like output file ``bestData.dat``.  
+  
+.. index:: msr2-data-global-mode
+  
+The Global Mode  
+---------------
+  
+Apart from all the options described :ref:`above <msr2data-opt-param>` there is another program option: **global**. 
+This option changes the general behavior of ``msr2data`` in that way that instead of processing one msr file for each 
+run it combines all specified runs in *one single msr file* with the possibility to define common parameters for all 
+runs as well as run-specific parameters. When writing the obtained parameters to a DB file or a column-structured 
+ASCII file that single msr file is read and the parameters valid for each run are extracted. The global option can be 
+used in conjunction with any of the described invocations of ``msr2data`` and together with all options stated :ref:`above <msr2data-opt-param>`.   
+
+File Generation
++++++++++++++++
+
+The general idea of this mode is to generate a global msr file on the basis of a working single-run msr file. For this 
+purpose a single-run template containing information about common and run-specific parameters should be created. These 
+parameters are identified through their parameter names: 
+
+**run-specific parameters**
+  these parameters are tagged with the current run number in the format ``%0Xu``, *i.e.* ``X`` digits with leading zeros, 
+  at the end of the parameter name, *e.g.* for a 4-digit-formatted run number ``alpha0123`` if the run number was 123 or 
+  for a 8-digit-formatted run number ``alpha00123456`` if the run number was 123456. ``X`` has to be at least 4. 
+**common parameters**
+  all parameters that are not run specific 
+  
+The :ref:`FITPARAMETER block <msr-fitparameter-block>` of an exemplary template file ``8472_example.msr`` could therefore look like:  
+
+::
+
+  FITPARAMETER
+  #       No   Name      Value     Step        Pos_Error    Boundaries
+          1    Phase     35.8359   -3.94496    3.93749
+          2    Asy8472   0.04501   -0.00208    0.00211      0       0.33
+          3    Field     143.212   -0.27960    0.27885      100     200
+          4    Rate8472  0.14245   -0.02501    0.02279      0       1
+            
+Here the parameters **2** and **4** would be treated as *run-specific* whereas the parameters **1** and **3** would be *common* to the original and all newly added runs.
+
+Normally, within the template file there should *not* appear explicitly any run-specific parameters in the :ref:`THEORY <msr-theory-block>` and 
+:ref:`FUNCTIONS <msr-functions-block>` blocks. If however, those parameters are met, ``msr2data`` will try to substitute them by mapped parameters 
+and add them accordingly to the map contained in each :ref:`RUN block <msr-run-block>`.
+
+When ``msr2data`` is called to generate a global msr file, *e.g.*
+
+.. code-block:: bash
+
+  $ msr2data 8471 8470 _example msr-8472 global 
+  
+a new msr file ``8471+global_example.msr`` is created. As can be seen in the example, the name of the global msr file always starts with the 
+first specified run number followed by the ``+global`` identifier and the template ``<extension>``. The example's global FITPARAMETER block would be:
+
+:: 
+
+  FITPARAMETER
+  #       No   Name      Value     Step        Pos_Error    Boundaries
+
+  # Common parameters for all runs
+
+          1    Phase     35.8359   -3.94496    3.93749
+          2    Field     143.212   -0.27960    0.27885      100     200
+
+  # Specific parameters for run 8471
+            
+          3    Asy8471   0.04501   -0.00208    0.00211      0       0.33
+          4    Rate8471  0.14245   -0.02501    0.02279      0       1
+
+  # Specific parameters for run 8470
+
+          5    Asy8470   0.04501   -0.00208    0.00211      0       0.33
+          6    Rate8470  0.14245   -0.02501    0.02279      0       1
+
+This shows that the fit parameters are reorganized in a way that the common parameters appear at the beginning of the parameter list and they are 
+followed by copies of the parameters specific to each run (in the specified order!). Additionally, for each specified run new RUN blocks are 
+created — for each run as many as found for the template run.
+
+During this reorganization all the affected parameter occurrences are changed accordingly! 
+            
+.. note::     
+
+  Please be aware of the fact that comments in the template msr file are *not* propagated to the newly generated global msr file!
+  
+.. index:: msr2data-global-param-extraction  
+  
+Parameter Extraction
+++++++++++++++++++++
+
+After fitting some model to the specified data the fit parameters can be extracted from the global msr file to a DB or column-structured ASCII file;
+as usual this includes also parameters stored in the run data files or externally specified parameters given in a :ref:`run-list file <run-list-file_structure>`. 
+In order to reach this goal the global msr file has to obey certain rules: 
+
+* The order of the parameters has to match the one described above, meaning the common parameters are listed first followed by 
+  the same number of parameters specific to each run tagged by the according run numbers at the end of the parameter names and 
+  having the same order as the specified list of runs.
+* The RUN blocks have to be ordered according to the list of runs to be processed. 
+
+Following these rules -- which is achieved most easily by generating the global msr file using ``msr2data`` as shown above -- the parameters can be extracted *e.g.* like
+
+.. code-block:: bash
+
+  $ msr2data 8471 8470 _example global data -o globalFit.dat 
+  
+This will read in the file ``8471+global_example.msr``, extract for each run all relevant parameters from the msr file as well as 
+from the according data files (if available) and append all of them in columns to the ASCII file ``globalFit.dat``.   
+
+.. index:: msr2data-global-extended
+
+The Extended Global Mode
+++++++++++++++++++++++++
+
+If a new global input file is generated, it is also possible to do an automatic pre-analysis for each single run using the specified template first; 
+afterwards the run-specific parameters of these single-run msr files are collected into the global msr file. In special cases this might be useful 
+to obtain a better set of starting values for the parameters, however, in most cases it will not replace the "manual review" of the generated global 
+input file. The option is activated by choosing the keyword **global+**. For example 
+
+.. code-block:: bash
+
+  $ msr2data 8471 8470 _example global+ msr-8472 
+  
+Here, ``8472_example.msr`` is first used as template to generate the file ``8471-OneRunFit_example.msr``, then ``musrfit`` is called for it, the result 
+is used to generate ``8470-OneRunFit_example.msr`` and ``musrfit`` is called for that file. Finally, the global fit file ``8471+global_example.msr`` is 
+produced — including the fit results of the ``OneRunFit`` files for the run-specific parameters.  
+
+By appending an exclamation mark **!** to the **global+** option, the given template will be used for every new file generation (similar to the fit option 
+explained before). The **+[!]** extension will be ignored, if no new global input file is generated.
+The single run msr files are *not* deleted at the moment. The information contained in them might be useful for some people. Of course the data can also 
+be collected by ``msr2data``. *E.g.* in order to produce a DB file ``OneRunFits.db`` one could call 
+
+.. code-block:: bash
+
+  $ msr2data 8471 8470 -OneRunFit_example -o OneRunFits.db 
+
+.. note::  
+
+  Please be aware that the program in this mode *always* generates new single-run msr files and *always* calls ``musrfit`` for them. In case there are 
+  already single-run fits present, these cannot be used in conjunction with this option. The program on purpose behaves in this way in order to ensure 
+  the file integrity and correct parameter order within these files.
+  
+Known Limitations
+-----------------
+
+* The indexing run number of the msr file has to be at the begin of every filename.
+* Within the data file name the ``RUN#`` has the format ``%0Xu``, *i.e.* ``X`` digits with leading zeros, and has to be the rightmost number given in this 
+  format in the file name. ``X`` has to be at least 4. The highest treatable run number is :math:`2^{32}-1 = 4294967295`.
+* In order to keep ``msr2data`` working properly the msr files should only contain *one* STATISTIC block at the end of the file and *one* FITPARAMETER block 
+  right after the TITLE — ``musrfit`` itself allows to have more creative msr files...  
+* The msr-file generation from a template takes only care of runs given on the *first* line of a ``RUN block``. :ref:`ADDRUN <msr-addrun>` statements are simply 
+  copied! Since this is most probably *not* what one likes to do, it is suggested *not* to use the ``fit-<template>`` and ``msr-<template>`` options if 
+  ADDRUN statements were present in the template file.   
+* ``msr2data`` will write only up to two successive empty lines in newly generated msr files. In case more subsequent empty lines are encountered in a template file, 
+  these are not copied! Actually, this measure is not a limitation but has been introduced to keep the msr files in a reasonable shape.   
+  
+The Graphical User Interface for msr2data Provided by musredit  
+--------------------------------------------------------------
+
+:ref:`musredit <musredit-sec>`, designed especially for the manipulation of ``musrfit`` msr files and graphical front ends to ``musrfit``, offer an almost 
+self-explanatory graphical user interface to ``msr2data`` depicted below:
+
+.. image:: ../images/msr2data-GUI.*
+
+1. and 2. Choose one of the ways to specify your list of runs as described under :ref:`basic usage <msr2data-basic-usage>`.
+
+3. Give the file extension here, *e.g.* ``_zf`` for files like ``8472_zf.msr``. If the files do not have an extension this 
+   field stays empty. ``musredit`` takes care of passing the "" to ``msr2data`` as mentioned above. 
+4. Activates the ``fit-<template>`` option if ``<template>`` is entered. In case the option ``Chain Fit`` is *not* set the 
+   given template will be used for the input-file generation for all runs to be fitted — otherwise the output of the first 
+   fit serves as template for the second and so on. The template field stays empty if *no* fits should be performed! 
+5. Activates the ``-o <outputFileName>`` option if ``<outputFileName>`` is entered. If nothing is entered the default output file ``out.db`` or ``out.dat`` is used.  
+
+The options tags correspond essentially to the description in :ref:`optional parameters <msr2data-opt-param>`.
\ No newline at end of file
diff --git a/doc/html/_sources/mupp.txt b/doc/html/_sources/mupp.txt
new file mode 100644
index 00000000..c8156723
--- /dev/null
+++ b/doc/html/_sources/mupp.txt
@@ -0,0 +1,238 @@
+.. include:: <isogrk1.txt>
+.. index:: mupp
+.. _mupp:
+
+mupp - |mgr|\SR Parameter Plotter
+=================================
+
+``mupp`` is a little helper program which allows to quickly plot a collection of msr-file parameters,
+as for instance generated by :ref:`msr2data <msr2data>`. It can handle ``db``- and ``dat``-files.
+Also a collection of ``msr``-files can be invoked. ``mupp`` is heavily inspired by |mgr|\View (see
+`here <http://musr.org/muview/>`_).
+
+``mupp`` can be operated from within as graphical user interface or via a command line scripting interface.
+The ``mupp`` GUI can be invoked either directly from the command line or from within :ref:`musredit <musredit-sec>`.
+
+Each collection bundles a number of runs, where a run is a single |mgr|\SR measurement.
+A run is analyzed by a number of parameters (defined in the msr-files), and complemented by
+additional physical parameters as the temperature, magnetic field, implantation energy, etc.
+Hence parameters can be seen as vectors and can be plot against each other. 
+
+.. index:: mupp-gui
+
+The Graphical User Interface
+----------------------------
+
+A typical setting could look like this
+
+.. image:: ../images/mupp-gui-0.*
+
+1. shows the list of loaded collections. A collection is defined as ``db``- or ``dat``-file (typically the 
+   output from :ref:`msr2data <msr2data>`). If you call the open-dialog and select a collection of
+   ``msr``-files, ``mupp`` will call ``msr2data`` and tries to generate a collection on-the-fly.
+2. in this list, the data-tags of the currently selected collection is presented. The data-tags can be
+   directly dragged over to the ``x``- and ``y``-axis list. Another way is to select the data-tag
+   wished and click ``add X`` to add the selected data-tag to the ``x``-axis list. Analogous it is done
+   for the ``y``-axis.
+3. ``x``-axis list. The labels are followed by ``(-X-)`` where the number ``X`` corresponds to the
+   selection it corresponds to. The numbering of the collection is as given in the collection list.
+4. ``y``-axis list. The labels are followed by ``(-X-)`` where the number ``X`` corresponds to the
+   selection it corresponds to. The numbering of the collection is as given in the collection list.
+5. ``add X`` allows to add the currently selected data-tag to the ``x``-axis list.   
+6. ``add Y`` allows to add the currently selected data-tag to the ``y``-axis list. 
+7. ``remove X`` will remove the selected ``x``-axis tag.
+8. ``remove Y`` will remove the selected ``y``-axis tag.
+9. Often one would like to compare trends of different settings. In the above example each collections
+   holds an energy scans for a given temperature. Each collection is measured at a different temperature.
+   Now, instead of adding ``x``- and ``y``-axis tags for each collection, you can do the following:
+   you add ``x``- and ``y``-axis data-tags for the first collection. Afterwards you select all the other
+   collections of interest and click on ``Add Ditto``. ``mupp`` will then add the corresponding
+   ``x``- and ``y``-axis data-tags accordingly. This is less error prone and quicker!
+10. Clicking the ``Plot`` button will invoke ``mupp_plot`` (a ``ROOT`` based application) which will
+    present the data, as shown here
+    
+    .. image:: ../images/mupp-plot-0.*
+      :height: 600px
+      
+11. ``Remove Collection``: will remove the selected collection
+12. ``Refresh Collection``: will reload the collection (``db``- or ``dat``-file). This is often useful
+    during beamtime where the collection is growing run-by-run.
+13. Command history window.
+14. This is the script command line. Currently it allows to perform the tasks without mouse gambling.
+    In the future much more commands are planed. See the ``Help / Cmd's`` for the currently available
+    commands.
+
+Define Variable Dialog
+++++++++++++++++++++++    
+
+.. image:: ../images/mupp-add-var.*
+
+1. Variable text edit window.
+2. Collection link window.
+3. Shows the parameters of the selected collection.
+4. Check if the variable/error variable from the edit window is valid.
+5. Add the variable to the selected collection(s) if the parsing is successful.
+
+A variable defined here is a mathematical expression defined by parameters of loaded collections.
+Since a parameter also has an associated error, also newly defined variables **always** need
+to be defined together with a corresponding error variable. If the name of a variable is defined
+as ``SigmaSC_10`` (see the above snapshot), the error variable need to be named as ``SigmaSC_10Err``.
+
+Currently the following mathematical functions are defined: ``max``, ``min``, ``abs``, ``sin``, ``cos``,
+``tan``, ``exp``, ``log``, ``ln``, ``pow``.
+
+.. index:: mupp-scripting
+    
+The Scripting Interface
+-----------------------
+
+``mupp`` can also be operated in a scripting like manner. The use cases are plot updates during run time, 
+or web-based interaction which requests figures. A script is invoked by the command line option ``-s`` (see
+:ref:`mupp command line summary <mupp-usage>`. Currently the following scripting commands are available:
+
+**loadPath <dir>** 
+  set the load path to ``<dir>``. Bash variables like $HOME are accepted. This is the path where to look for collection files (``db``- and ``dat``-files).
+
+**load <coll>** 
+  will load the collection ``<coll>``.
+
+**selectAll** 
+  will select all loaded collections. This means every plot of variable x/y will be carried out to *ALL* collections.
+  
+**select <nn>** 
+  selects collection ``<nn>``, where ``<nn>`` is either the *number* of the collections, or its *name*, *e.g.* 
+  select YBCO-40nm-T5K-FC150mT-Escan.db.
+  
+**x <label>**   
+  add ``<label>`` as a *x*-variable. Only *one* is allowed.
+  
+**y <label(s)>**
+  add ``<label(s)>`` as *y*-variable. *Multiple* labels are possible. 
+  
+**norm**
+  this will normalize all the *y*-variables by their maximum.   
+  
+**savePath <dir>**
+  set the save path to ``<dir>``. The place where the macros, and/or the plot output will be saved.  
+  
+**plot <fln>**
+  where ``<fln>`` is the file name with extension under which the plot should be saved.
+  
+**macro <fln>**
+  where ``<fln>`` is the file name under which the root macro should be saved.
+  
+**var <var_name> = <expr>**
+  defines a variable.
+  <expr> is a mathematical expression where collection variables are addressed 
+  via the '$', e.g. ``dataT`` is addressed by ``$dataT``, etc. An example:
+  
+  ``var invT = 1000.0 / $dataT``
+  
+  Each variable has to be accompanied by its error variable. An error variable
+  is defined by the ``<var_name>`` followed by ``Err``
+  For the above example the error variable is
+  
+  ``var invTErr = $invT * $dataTErr / $dataT``
+  
+**col <nn> : <var_name>**
+   links <var_name> to the collection <nn>, where <nn> is the number of the 
+   collection as defined by the order of load, starting with 0.   
+  
+An example script file ``sigmaSC-vs-temp.txt`` might look like this:
+
+::
+
+  # This is a comment
+  # Script: sigmaSC-vs-temp.txt
+
+  loadPath ./
+
+  load YBCO-40nm-FC-E3p8keV-B10mT-Tscan.db  # collection 0
+  load YBCO-40nm-FC-E3p8keV-B150mT-Tscan.db # collection 1
+
+  # define variables: for each variable an associated error variable is needed.
+  # B=10mT
+  var SigmaSC_10 = pow(abs(pow($Sigma,2.0)-pow(0.11,2.0)), 0.5) # 0.11 (1/us) is the nuclear contribution (T>Tc)
+  var SigmaSC_10Err = pow(pow($Sigma*$SigmaErr,2.0)+pow(0.11*0.0025,2.0), 0.5)/$SigmaSC_10
+  # B=150mT
+  var SigmaSC_150 = pow(abs(pow($Sigma,2.0)-pow(0.075,2.0)), 0.5) # 0.075 (1/us) is the nuclear contribution (T>Tc)
+  var SigmaSC_150Err = pow(pow($Sigma*$SigmaErr,2.0)+pow(0.075*0.0025,2.0), 0.5)/$SigmaSC_150
+
+  # link variables to collections
+  col 0 : SigmaSC_10    # error variable SigmaSC_10Err doesn't need to be given, it is automatically linked to SigmaSC_10
+  col 1 : SigmaSC_150
+
+  norm # normalize the plot to the maximum of each y-data-set
+
+  # the next 3 cmds means the following: use collection 0, add dataT to the x-axis,
+  # and SigmaSC_10 to the y-axis
+  select 0 
+  x dataT
+  y SigmaSC_10
+
+  select 1
+  x dataT
+  y SigmaSC_150
+
+  # where to save the output
+  savePath ./
+  
+  # create a pdf output file of the above defined xy-data sets. Currently also
+  # other file formats are supported, like png, jpg, etc.
+  plot SigmaSCVsTemp.pdf
+
+  # creates a ROOT macro which can be used for further refinement
+  macro SigmaSCVsTemp.C
+
+  # end
+
+.. index:: mupp-usage
+.. _mupp-usage:
+
+The Usage Summary
+-----------------
+
+::
+ 
+  usage: mupp [OPTIONS] [[--path <fit-param-path>] <fit-param-file-names>]
+
+  OPTIONS:
+    -h, --help: this help
+    -v, --version: current mupp version
+    -s <fln>, --script <fln>: <fln> being a mupp script.
+    --path <fit-param-path>: path where to look for the <fit-param-file-names>
+    <fit-param-file-names>: list of file name(s) to be loaded.
+       allowed formats are: db, dat, msr
+
+
+  SCRIPT COMMANDS:
+     Lines starting with '#', '%', or '//' are comments and will be ignored.
+     The same is true for empty lines. Comments are also allowed at the end
+     for a command, i.e. loadPath ./ # the best place ever.
+
+     load <coll>     : load a collection. <coll> is the filename of the
+                       collection (*.db, *.dat)
+     loadPath <path> : set the load path to <path>; accepting bash variables
+                       like $HOME, etc.
+     x <var-name>    : set a x-axis variable. <var-name> is a data tag of
+                       the db/dat-file.
+     y <var-name>    : set a y-axis variable. <var-name> is a data tag of
+                       the db/dat-file.
+     select <nn>     : select collection <nn>, where <nn> is the row-number
+                       or the name of the collection to be selected.
+     selectAll       : i.e. already set 'x', 'y' will apply to ALL collections
+                       present.
+     savePath <path> : sets the save path to <path>; accepting bash variables
+                       like $HOME, etc.
+     plot <fln>      : where <fln> is the file name with extension under which
+                       the plot should be saved.
+     macro <fln>     : where <fln> is the file name under which the root macro
+                       should be saved.
+     var <var_name> = <expr> : defines a variable.
+                               <expr> is a mathematical expression where
+                               collection variables are addressed via the '$',
+                               e.g. dataT is addressed by $dataT, etc.
+     col <nn> : <var_name>   : links <var_name> to the collection <nn>, where
+                               <nn> is the number of the collection as defined
+                               by the order of load, starting with 0.
+              
diff --git a/doc/html/_sources/musr-root.txt b/doc/html/_sources/musr-root.txt
new file mode 100644
index 00000000..29c6963a
--- /dev/null
+++ b/doc/html/_sources/musr-root.txt
@@ -0,0 +1,681 @@
+.. include:: <isogrk1.txt>
+.. index:: MusrRoot
+
+.. _MusrRoot:
+
+MusrRoot - an Extensible Open File Format for |mgr|\SR
+======================================================
+
+Until 2011 different |mgr|\SR file formats were used within PSI. The bulk-|mgr|\SR instruments were 
+writing their data in the ``PSI-BIN`` file format, which is a fixed binary format with rather stringent 
+limitations. The LE-|mgr|\SR (LEM) instrument was using a ROOT (CERN) based file format which was tightly 
+tailored to the special needs of the LEM instrument. This situation was unsatisfactorily and hence it 
+was decided to move forward to a open file format called ``MusrRoot`` to be described in the following.
+
+Some Basics Concerning ROOT Files
+---------------------------------
+
+The |mgr|\SR data acquisition systems at PSI are utilizing MIDAS (see `Midas Home Page <https://midas.triumf.ca/MidasWiki/index.php/Main_Page>`_). 
+The MIDAS analyzer, which is responsible to build histograms, especially the |mgr|\SR decay histograms, makes 
+it very easy to build ROOT (see `ROOT/CERN home page <https://root.cern.ch>`_ ) histogram objects (these 
+are ``TH1F`` objects for |mgr|\SR decay histograms). ROOT is a ``C++`` object-oriented data mining and 
+analysis frame work. These histograms can be collected and saved in ROOT files (``TFile``). In order to ease 
+the understanding of the upcoming definitions, a few ROOT related things shall be summaries here. For details 
+concerning the ROOT frame work documentation please check `ROOT/CERN Users Guide(s) <https://root.cern.ch/root-user-guides-and-manuals>`_ 
+and `ROOT/CERN Reference Guide <https://root.cern.ch/guides/reference-guide>`_. 
+
+ROOT files (``TFile``) are binary files which can hold any kind of objects. A ``TFile`` is organized similarly 
+to a directory structure of an operating system. Within the ROOT framework, there is a ``TFile`` browser available 
+which allows to inspect these files. This browser (``TBrowser``) will show all object saved in the ``TFile`` directly, 
+if they derive from ``TObject``. 
+
+The ``MusrRoot`` file format to be described below is only using a small subset of possible ROOT objects, namely:
+
+* ``TFolder``: this are the top level objects in the ``MusrRoot`` file.
+* ``TH1F``: Hold the |mgr|-decay-histograms.
+* ``TObjArray``: Holding collection of header information.
+* ``TObjString``: Holding the content of any header information. 
+
+Since all these objects are deriving form ``TObject``, they will be directly accessible via the ``TBrowser``-object. 
+For instance, the |mgr|-decay-histograms can be directly plotted, are even fitted, out of the box. 
+
+MusrRoot an Extensible Open File Format for |mgr|\SR 
+----------------------------------------------------
+
+As mentioned before, ROOT files are open-file-format files meaning that they can contain more entries (and most probably will) than the ones specified in the following. The specified ones will be the mandatory ones for all instruments. Before defining all mandatory entries, the MusrRoot file structure shall be sketched.
+
+The MusrRoot file structure looks like: 
+
+::
+
+  histos ---|
+            |- DecayAnaModule ---|
+            |                    |- hDecay001
+            |                    |- hDecay002
+            |                    ...
+            |
+            |- SCAnaModule ---|
+            ...               |- hSampleTemperature
+                              |- hSampleMagneticField
+                              ...
+  RunHeader ---|
+               |- RunInfo
+               |- DetectorInfo ---|
+               |                  |- Detector001
+               |                  |- Detector002
+               |                  ...
+               |
+               |- SampleEnvironmentInfo
+               |- MagneticFieldEnvironmentInfo
+               |- BeamlineInfo
+               ...
+               
+where ``hDecay001``, etc. are ROOT histograms (to be more specific: ``TH1F``), containing the |mgr|\SR decay histograms. There can be as many as needed, especially there is no limitation about their length. The histogram object names will be ``hDecayXXX``, where ``XXX`` (leading zero int, *i.e.* ``%03d`` 
+in ``C/C++`` notation, starting with '1') is the histogram number. The title and name of the histogram (see description of the ``TH1F`` ROOT class) contains the label of the histogram, like 'top', 'forward', etc. How many of these histograms are present is accessible through the ``RunInfo`` folder in which the necessary header information are found (details see next sections). The folder ``SCAnaModule`` contains histograms of some of the slow-control parameters, as for instance the sample temperature versus time, the applied field versus time, etc. Again the label of the histogram will give more specific information about its content. 
+
+Run Information Contained in ``RunHeader``
+++++++++++++++++++++++++++++++++++++++++++
+
+The ``RunHeader`` contains all needed meta-information to describe a |mgr|\SR-run. The list of the minimal number of required "folders" of the ``RunHeader`` is given in the following structure:
+
+::
+
+  RunHeader (TFolder) ---|
+                         |- RunInfo (TObjArray)
+                         |- DetectorInfo (TObjArray)
+                         |- SampleEnvironmentInfo (TObjArray)
+                         |- MagneticFieldEnvironmentInfo (TObjArray)
+                         |- BeamlineInfo (TObjArray)
+
+In brackets the object type is given. ``RunInfo`` contains most information relevant for the user and will be itemized in :ref:`RunInfo Overview <musr-root-overview>` and :ref:`RunInfo Required <run-info-required>`. ``DetectorInfo`` contains detector specific information, like detector name, time zero bin, etc. (details is found under :ref:`DetectorInfo Required <detector-info-required>`). ``SampleEnvironmentInfo`` (details under :ref:`SampleEnvironmentInfo Required <sample-environment-info-required>`), and ``MagneticFieldEnvironmentInfo`` (details under :ref:`MagneticFieldEnvironmentInfo Required <magnetic-field-environment-info-required>`) store additional, more detailed information concerning the sample environment. ``BeamlineInfo`` stores beamline relevant information (details under :ref:`BeamlineInfo Required <beamline-info-required>`).
+
+Before elaborating more on the required items within this structure, a few words on the ROOT types used here: ``RunHeader`` is a ``TFolder`` object. All the "sub-directory" entries are of type ``TObjArray`` and collect items of type ``TObjString`` or other ``TObjArray`` (*i.e.* sub-directories and sub-sub-directories, etc.).
+
+.. index:: MusrRoot-Overview
+.. _musr-root-overview:
+
+``RunInfo`` Overview
+^^^^^^^^^^^^^^^^^^^^
+
+======================== ============================ =====================================================
+Name                     Internal Type                Comment
+======================== ============================ =====================================================
+Version                  ``TString``                  GIT version of ``TMusrRunHeader``
+Generic Validator URL    ``TString``                  URL of the generic ``MusrRoot`` validation xsd-file.
+Specific Validator URL   ``TString``                  URL of the instrument specific validation xsd-file.
+Generator                ``TString``                  Program which wrote the ``MusrRoot`` file, *e.g.* ``nemu_analyzer``
+File Name                ``TString``                  File name of the ``MusrRoot`` file, *e.g.* ``deltat_tdc_gps_4295.root``
+Run Title                ``TString`` 
+Run Number               ``Int_t`` 
+Run Start Time           ``TString``                  ISO 8601 date time
+Run Stop Time            ``TString``                  ISO 8601 date time
+Run Duration             ``TMusrRunPhysicalQuantity`` run duration in sec
+Laboratory               ``TString``                  *e.g.* PSI
+Instrument               ``TString``                  *e.g.* GPS
+Muon Beam Momentum       ``TMusrRunPhysicalQuantity`` *e.g.* 28.1 MeV/c
+Muon Species             ``TString``                  positive, or negative muon
+Muon Source              ``TString``                  *e.g.* Target E - Low Energy Muons or "Target M" ... 
+Setup                    ``TString``  
+Comment                  ``TString`` 
+Sample Name              ``TString`` 
+Sample Temperature       ``TMusrRunPhysicalQuantity`` *e.g.* 3.21 +- 0.05 K; SP: 3.2; CF1
+Sample Magnetic Field    ``TMusrRunPhysicalQuantity`` *e.g.* 350.002 +- 0.005 G; SP: 350; WXY
+No of Histos             ``Int_t``
+Time Resolution          ``TMusrRunPhysicalQuantity`` *e.g.* 0.1953125 ns
+RedGreen Offsets         ``TIntVector``               *e.g.* 0; 20
+======================== ============================ =====================================================
+
+These entries should be clear except for the ``RedGreen Offsets`` and the column "Internal Type" which shortly will be discussed before specifying the content of the other required folders.
+
+#. ``RedGreen Offsets``: in case experiments are performed with external stimuli, there will be a collection of related histograms. 
+   For instance for electrical field experiments, there will be histograms for field on/off, doubling the number of needed histograms. 
+   In order to distinguish them easier in the data file, the ``RedGreen Offsets`` were introduced. One selection of histograms 
+   (assuming for the moment 8 detectors) will be numbered from 1 to 8 (lets say the field off ones). The other set of histograms 
+   (field on in this example) will then start with 21 through 28 (see table above). The same will be true for the detector information 
+   (see :ref:`DetectorInfo Required <detector-info-required>`). The entry ``No of Histos`` will only give 8 for the given example, 
+   meaning that red/green multiplication is defined rather via ``RedGreen Offsets`` than the number of histograms. 
+#. Internal Types: in order to ease the handling of the ``MusrRoot`` run header, a class ``TMusrRunHeader`` is available which deals 
+   with it. The "Internal Type" specified, corresponds to the internal representation in within this class. In the ``MusrRoot`` file 
+   these entries are all saved as browsable ROOT strings (``TObjStringv). The only special type is ``TMusrRunPhysicalQuantity`` which 
+   is introduced to deal with physical quantities. They always can be represented in the following way:
+   
+   ::
+   
+     <property name> <value> +- <estimated error> <unit>; SP: <demand>; <description>
+     
+Not all of these values are needed to be given and depending on which are given, the representation in the ``MusrRootv file will be different (handled by ``TMusrRunHeader``). Examples are given in the comment column of the table above. For details see  :ref:`TMusrRunPhysicalQuantity - Possible Representations <musr-run-physical-quantity>`. 
+
+A mock-up ``TBrowser`` print-out would look like the one shown in the following figure. You might notice, that at the end of each entry you find a ``-@X``, where ``X`` is a number. This is an encoding of the internal type of the entry and is the price to be payed not using derived types. The next section will explain this in much more detail. 
+
+.. image:: ../images/MusrRoot-RunInfo.*
+
+``TMusrRunHeader`` mock up. The red shaded entries are of type ``TMusrRunPhysicalQuantity``
+
+.. _musr-run-header-concept:
+
+TMusrRunHeader Concept
+----------------------
+
+The different |mgr|\SR instruments need different information to be written into the data file (next to the most important ones: the histograms). The above defined properties are the *minimal number of required* ones. There are different possible approaches to deal with it on the implementation level. 
+
+* A base class dealing with *minimal* required standard is defined. Afterwards for each instrument a class 
+  is derived which is extending the base class to the needs of the instrument.
+* The base class is defined in a more abstract way, and some external, text-based description is given which defines the details of the instrument. 
+
+Even though the first approach is very clean, it would mean a lot of maintenance work. The 2nd approach is slightly more demanding for the handling class (``TMusrRunHeader`` and helper classes), but having the advantage of easy maintainability and expandability. The idea is that all header information can be classified into 7 groups (see previous and following section(s))
+
+#. Strings, represented by ``TString``
+#. Integers, represented by ``Int_t``
+#. Floating point numbers, represented by ``Double_t``
+#. Physical quantities, represented by :ref:`TMusrRunPhysicalQuantity - Possible Representations <musr-run-physical-quantity>`
+#. Collection of strings, represented by ``TStringVector``
+#. Collection of integers, represented by ``TIntVector``
+#. Collection of floating point numbers, represented by ``TDoubleVector`` 
+
+These properties can be collected by themselves in form of vectors. This way any needed information can be written into the ROOT file. The class ``TMusrRunHeader`` is implementing this run header concept. In following section code snippets will be discussed, showing how this is used on level of the ``MIDAS`` analyzer, ``musrfit`` reader routine, and ``any2many`` conversion routines. The section :ref:`Validation <musr-root-validation>` will discuss how to validate ``MusrRoot`` files. 
+
+    
+User Interface for MusrRoot Run Header
+++++++++++++++++++++++++++++++++++++++
+
+There are two things needed to deal with the ``MusrRoot`` run header, namely writing it and reading it. I will start with the writing as will be done in the ``MIDAS`` analyzer. 
+
+Writing a MusrRoot Run Header
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+An example program ``write_musrRoot_runHeader`` which is writing a full run header is part of the ``musrfit`` package. Here I will concentrate just on the most essential parts. First one needs an instance of ``TMusrRunHeader``
+
+.. code-block:: c++
+
+  TMusrRunHeader *header = new TMusrRunHeader();
+  TMusrRunPhysicalQuantity prop;
+  
+``header`` is the instance of ``TMusrRunHeader``. ``prop`` is an instance of ``TMusrRunPhysicalQuantity`` which will be needed further down in the description. In the next step some run header entries will be added 
+
+.. code-block:: c++
+
+  header->Set("RunInfo/File Name", "deltat_tdc_gps_2871.root");
+  header->Set("RunInfo/Run Title", "here comes the run title");
+  header->Set("RunInfo/Run Number", 2871);
+  
+Adding information is done via the multiple overloaded ``Set(<pathName>,<value>)`` method. Here ``<pathName>`` is a string representing the "path" like representation in the ``MusrRoot`` file structure, followed by the "value" to be set, *e.g.* "=File Name=". ``<value>`` can be any of the types listed at the beginning of :ref:`Sec. TMusrRunHeader Concept <musr-run-header-concept>`. Here a few examples how to set ``TMusrRunPhysicalQuantity``. 
+
+.. code-block:: c++
+
+  prop.Set("Sample Temperature", 3.2, 3.21, 0.05, "K", "CF1");
+  header->Set("RunInfo/Sample Temperature", prop);
+
+  prop.Set("Time Resolution", 0.1953125, "ns", "TDC 9999");
+  header->Set("RunInfo/Time Resolution", prop);
+
+  prop.Set("CF3", MRH_UNDEFINED, 3.27, 0.09, "K", "strange temperature");
+  header->Set("SampleEnvironmentInfo/CF3", prop);
+  
+Here ``TMusrRunPhysicalQuantity`` objects are fed via the use of the overloaded set-method. For details see :ref:`TMusrRunPhysicalQuantity - Possible Representations <musr-run-physical-quantity>`.   
+
+To set some property within "sub-sub-directories" it would like this: 
+
+.. code-block:: c++
+
+  header->Set("DetectorInfo/Detector001/Time Zero Bin", 3419.0);
+  
+To write the whole run header into a file would look something like this: 
+
+.. code-block:: c++
+
+  TFile *f = new TFile(fileName, "RECREATE", "write_musrRoot_runHeader");
+  if (f->IsZombie()) {
+    delete f;
+    return -1;
+  }
+
+  // create the needed TFolder object
+  TFolder *runHeader = new TFolder("RunHeader", "MusrRoot Run Header Info");
+
+  // create the "directory" structure
+  if (header->FillFolder(runHeader)) {
+    runHeader->Write(); // write run header to file
+  }
+
+  f->Close();
+
+Reading a MusrRoot Run Header 
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The following code snippet shows how the extract the full run header from the ``MusrRoot`` file. 
+
+.. code-block:: c++
+
+  TFile *f = new TFile(fileName, "READ", "read_musrRoot_runHeader");
+  if (f->IsZombie()) {
+    delete f;
+    return -1;
+  }
+
+  TFolder *runHeader = 0;
+  f->GetObject("RunHeader", runHeader);
+  if (runHeader == 0) {
+    cerr << endl << ">> **ERROR** Couldn't get top folder RunHeader";
+    closeFile(f);
+    return -1;
+  }
+
+  TMusrRunHeader *header = new TMusrRunHeader(fileName);
+
+  if (!header->ExtractAll(runHeader)) {
+    cerr << endl << ">> **ERROR** couldn't extract all RunHeader information";
+    closeFile(f);
+    return -1;
+  }
+
+  f->Close();
+  delete f;
+
+
+The routine ``ExtractAll(TFolder *runHeader)`` decodes all the ``TObjString`` objects and fills internal data structures. This means when reading a MusrRoot -file the above handling is always needed. After the ``ExtractAll`` call, parameters can be extracted via the getter routines available. For instance to read the Run Number, the code would look like   
+
+.. code-block:: c++
+
+  Bool_t ok;
+  Int_t ival;  
+  header->Get("RunInfo/Run Number", ival, ok);
+  if (ok)
+    cout << endl << "Run Number: " << ival;
+  else
+    cout << endl << "**ERROR** Couldn't obtain the 'Run Number'.";
+    
+Reading a ``TMusrRunPhysicalQuantity`` object, *e.g.* the sample temperature looks like this 
+
+.. code-block:: c++
+
+  TMusrRunPhysicalQuantity prop;
+
+  header->Get("RunInfo/Sample Temperature", prop, ok);
+  if (ok) {
+    cout << endl << "Sample Temperature: " << prop.GetValue() << " +- ";
+    cout << prop.GetError() << " " << prop.GetUnit().Data();
+    cout << "; SP: " << prop.GetDemand() << "; " << prop.GetDescription().Data();
+  } else {
+    cout << endl << "**ERROR** Couldn't obtain the 'Sample Temperature'.";
+  }
+
+.. index:: MusrRoot-Validation
+.. _musr-root-validation:
+
+Validation of a MusrRoot File 
++++++++++++++++++++++++++++++
+
+Since ``MusrRoot`` is an open and extensible file format a mechanism is needed to validate that a given file is indeed holding the minimum of required entries. To check this the following scheme is implemented in the program ``musrRootValidation``:
+
+.. image:: ../images/MusrRootValidationScheme.*
+
+``MusrRoot`` validation scheme
+
+In the following this validation scheme will be discussed as it is implemented in ``musrRootValidation``: 
+
+#. It is checked if the given file name is a ``TFile``
+#. The file structure is recursively parsed and mapped into an temporary XML file. XML is used 
+   since there are ample of parser and validation frameworks at hand. For details check any decent 
+   book about XML. Here the ``libxml2`` is used, because also ROOT is requiring it.
+#. In a next step the XML file (holding the structure of the supposed ``MusrRoot`` file is validated 
+   against a XML schema. The minimum of required entries is described by ``MusrRoot.xsd`` which is 
+   part of ``musrfit`` but also available from the PSI/LMU web-page.
+#. If the schema validation is successful additional semantic checks (like is the number of decay 
+   histograms the same as the number of detector entries, etc.) will be preformed. 
+
+This validation scheme is useful for people which define instrument specific extensions of the base ``MusrRoot``, as for instance the LEM instrument at PSI. It is also useful for people writing file converters in order to cross check if the generated file is valid.    
+   
+.. _run-info-required:
+
+RunInfo (Required)
+------------------
+
+========================== ============================= =====================================================
+Name                       Internal Type                 Comment
+========================== ============================= =====================================================
+Version                    ``TString``                   GIT version of ``TMusrRunHeader``
+Generic Validator URL      ``TString``                   URL of the generic ``MusrRoot`` validation xsd-file. 
+                                                         *e.g.* `<http://lmu.web.psi.ch/facilities/software/MusrRoot/Validation/MusrRoot.xsd>`_
+Specific Validator URL     ``TString``                   URL of the instrument specific validation xsd-file.
+                                                         *e.g.* for LEM: `<http://lmu.web.psi.ch/facilities/software/MusrRoot/Validation/MusrRootLEM.xsd>`_
+Generator                  ``TString``                   Program which wrote the ``MusrRoot`` file, *e.g.* ``nemu_analyzer``
+File Name                  ``TString``                   File name of the ``MusrRoot`` file, *e.g.* ``deltat_tdc_gps_4295.root``
+Run Title                  ``TString``
+Run Number                 ``Int_t``
+Run Start Time             ``TString``                   ISO 8601 date time
+Run Stop Time              ``TString``                   ISO 8601 date time
+Run Duration               ``TMusrRunPhysicalQuantity``  run duration in sec 
+Laboratory                 ``TString``                   *e.g.* PSI
+Instrument                 ``TString``                   *e.g.* GPS
+Muon Beam Momentum         ``TMusrRunPhysicalQuantity``  *e.g.* 28.1 MeV/c
+Muon Species               ``TString``                   poitive or negative muon
+Muon Source                ``TString``                   *e.g.* "Target E - Low Energy Muons" or "Target M" ...
+Setup                      ``TString``                  
+Comment                    ``TString``
+Sample Name                ``TString``
+Sample Temperature         ``TMusrRunPhysicalQuantity``  *e.g.* 3.21 +- 0.05 K; SP: 3.2; CF1 
+Sample Magnetic Field      ``TMusrRunPhysicalQuantity``  *e.g.* 350.002 +- 0.005 G; SP: 350; WEW 
+No of Histos               ``Int_t``
+Time Resolution            ``TMusrRunPhysicalQuantity``  *e.g.* 0.1953125 ns
+RedGreen Offsets           ``TIntVector``                *e.g.* 0; 20 
+========================== ============================= =====================================================
+
+.. _detector-info-required:
+
+DetectorInfo (Required)
+-----------------------
+
+The ``DetectorInfo`` is organized in a sub-tree like
+
+::
+
+  DetectorInfo ---|
+                  |- Detector001
+                  |- Detector002
+                  ...
+
+
+
+For each histogram in the ``histos/DecayAnaModule`` corresponds detector entry here.
+
+The numbering of the detectors has to correspond the its histogram, *e.g.* ``hDecay023 <=> Detector023``, *i.e.* potentially discontinuous to show red / green breaks.
+
+``Detector<XXX>`` has the elements 
+
+========================== ============================= =====================================================
+Name                       Internal Type                 Comment
+========================== ============================= =====================================================
+Name                       ``TString``                   detector name, *e.g.* Left-NPP
+Histo Number               ``Int_t``                     histogram number. This number corresponds to the histogram 
+                                                         number in the ``histos/DecayAnaModule`` sub-tree.
+Histo Length               ``Int_t``                     length of the histogram (in bins)
+Time Zero Bin              ``Double_t``                  The type is ``Double_t`` since for the high-field spectrometer 
+                                                         at PSI an ``Int_t`` representation would be not good enough.  
+First Good Bin             ``Int_t``
+Last Good Bin              ``Int_t``
+========================== ============================= =====================================================
+
+.. _sample-environment-info-required:
+
+SampleEnvironmentInfo (Required)
+--------------------------------
+
+Here only a single entry is required, namely 
+
+========================== ============================= =====================================================
+Name                       Internal Type                 Comment
+========================== ============================= =====================================================
+Cryo                       ``TString``                   name of the used cryostat/oven, *e.g.* ``Konti-2`` 
+========================== ============================= =====================================================
+
+.. _magnetic-field-environment-info-required:
+
+MagneticFieldEnvironmentInfo (Required)
+---------------------------------------
+
+Here only a single entry is required, namely 
+
+========================== ============================= =====================================================
+Name                       Internal Type                 Comment
+========================== ============================= =====================================================
+Magnet Name                ``TString``                   name of the used magnet, *e.g.* ``WEW``. 
+                                                         In case of ZF measurements, there might be an entry like ZF. 
+========================== ============================= =====================================================
+
+.. _beamline-info-required:
+
+BeamlineInfo (Required)
+-----------------------
+
+Here only a single entry is required, namely 
+
+========================== ============================= =====================================================
+Name                       Internal Type                 Comment
+========================== ============================= =====================================================
+Name                       ``TString``                   name of the beamline, *e.g.* ``piM3.2``
+========================== ============================= =====================================================
+
+Exhaustive MusrRoot Tree Including Everything Required
+------------------------------------------------------
+
+Here it is assumed that there are hypothetical *red / green data* with electric field on/off and light on/off, 
+and hence 4 data sets per detector, and 8 detectors of the instrument: ``left/forward``, ``top/forward``, ``right/forward``, 
+``bottom/forward``, ``left/backward``, ``top/backward``, ``right/backward``, ``bottom/backward``. To show the whole 
+tree structure, it will be split in the representation afterwards, but keep in mind: this will be all part of a 
+single ``MusrRoot`` file. I will add comments in the tree structure by the symbol ``#``. Lets start with the |mgr|\SR data histograms: 
+
+::
+
+  histos -|
+          |- DecayAnaModule -|
+                             |- hDecay001 # left/forward, electric field off, light off
+                             |- hDecay002 # top/forward, electric field off, light off
+                             |- hDecay003 # right/forward, electric field off, light off
+                             |- hDecay004 # bottom/forward, electric field off, light off
+                             ...
+                             |- hDecay007 # right/backward, electric field off, light off
+                             |- hDecay008 # bottom/backward, electric field off, light off
+                             |- hDecay011 # left/forward, electric field on, light off
+                             |- hDecay012 # top/forward, electric field on, light off
+                             |- hDecay013 # right/forward, electric field on, light off
+                             |- hDecay014 # bottom/forward, electric field on, light off
+                             ...
+                             |- hDecay017 # right/backward, electric field on, light off
+                             |- hDecay018 # bottom/backward, electric field on, light off
+                             |- hDecay021 # left/forward, electric field off, light on
+                             |- hDecay022 # top/forward, electric field off, light on
+                             |- hDecay023 # right/forward, electric field off, light on
+                             |- hDecay024 # bottom/forward, electric field off, light on
+                             ...
+                             |- hDecay027 # right/backward, electric field off, light on
+                             |- hDecay028 # bottom/backward, electric field off, light on
+                             |- hDecay031 # left/forward, electric field on, light on
+                             |- hDecay032 # top/forward, electric field on, light on
+                             |- hDecay033 # right/forward, electric field on, light on
+                             |- hDecay034 # bottom/forward, electric field on, light on
+                             ...
+                             |- hDecay037 # right/backward, electric field on, light on
+                             |- hDecay038 # bottom/backward, electric field on, light on
+                             ...
+
+*Comments*: as can be seen the histograms are continuous numbered until there is a red / green mode switch where 
+the histogram number "jumps" (*e.g.* from ``008`` to ``011``). In order to fill in the different red / green 
+histograms an offset is added (here 10, 20, and 30).                              
+
+Next the whole ``RunHeader``. Here the information will be grouped in different folders collecting related information, 
+like general run info, detector info, sample and magnetic field environment info, beamline info, etc.
+
+::
+
+  RunInfo:
+    000 - Version: $Id: TMusrRunHeader.cpp 5092 2012-03-13 07:47:00Z nemu $ -@0
+    001 - Generic Validator URL: http://lmu.web.psi.ch/facilities/software/MusrRoot/Validation/MusrRoot.xsd -@0
+    002 - Specific Validator URL: http://lmu.web.psi.ch/facilities/software/MusrRoot/Validation/MusrRootLEM.xsd -@0
+    003 - Generator: nemu_analyzer -@0
+    004 - File Name: lem12_his_0234.root -@0
+    005 - Run Title: here comes the run title -@0
+    006 - Run Number: 234 -@1
+    007 - Run Start Time: 2012-04-19 14:25:22 -@0
+    008 - Run Stop Time: 2012-04-19 19:13:47 -@0
+    009 - Run Duration: 17305 sec -@3
+    010 - Laboratory: PSI -@0
+    011 - Instrument: LEM -@0
+    012 - Muon Beam Momentum: 28.1 MeV/c -@3
+    013 - Muon Species: positive muon -@0
+    014 - Muon Source: target E -@0
+    015 - Setup: a very special setup -@0
+    016 - Comment: nothing more to be said -@0
+    017 - Sample Name: the best ever -@0
+    018 - Sample Temperature: 3.21 +- 0.05 K; SP: 3.2 -@3
+    019 - Sample Magnetic Field: 350.002 +- 0.005 G; SP: 350 -@3
+    020 - No of Histos: 8 -@1
+    021 - Time Resolution: 0.1953125 ns;  TDC 9999 -@3
+    022 - RedGreen Offsets: 0; 10; 20; 30
+  DetectorInfo:
+    Detector001:
+      023 - Name: Left/Forward - electric field off, light off -@0
+      024 - Histo Number: 1 -@1
+      025 - Histo Length: 66661 -@1
+      026 - Time Zero Bin: 3419.000000 -@2
+      027 - First Good Bin: 3419 -@1
+      028 - Last Good Bin: 66661 -@1
+    Detector002:
+      029 - Name: Top/Forward - electric field off, light off -@0
+      030 - Histo Number: 2 -@1
+      031 - Histo Length: 66661 -@1
+      032 - Time Zero Bin: 3419.000000 -@2
+      033 - First Good Bin: 3419 -@1
+      034 - Last Good Bin: 66661 -@1
+
+    ...
+
+    Detector038:
+      213 - Name: Bottom/Backward - electric field on, light on -@0
+      214 - Histo Number: 38 -@1
+      215 - Histo Length: 66661 -@1
+      216 - Time Zero Bin: 3419.000000 -@2
+      217 - First Good Bin: 3419 -@1
+      218 - Last Good Bin: 66661 -@1
+
+  SampleEnvironmentInfo:
+    219 - Cryo: Konti-1 -@0
+    220 - Insert: X123 -@0
+    221 - Orientation: c-axis perp spin, perp field. spin perp field -@0
+  MagneticFieldEnvironmentInfo:
+    222 - Magnet Name: WEW -@0
+    223 - Current: 17.34 A -@3
+  BeamlineInfo:
+    224 - Name: muE4 -@0
+  ScalerInfo:
+    225 - Ip: 12332123 -@1
+  RunSummary:
+    0000 - Wed Oct  5 01:30:37 2011 Run 2856 started.
+    0001 - Wed Oct  5 02:02:51 2011 Run 2856 stopped.
+    0002 - 
+    0003 - LCO, T=170.02(K), wTF ~30(G)/5.18(A), Tr/Sa=15.02/8.50(kV), E=5.63(keV), LEDb off, BP off
+    0004 - =========================================================================================
+    0005 - 
+    0006 - #BUC---- B e g i n of User Comment ------ Do not edit this line
+    0007 - #EUC----   E n d   of User Comment ------ Do not edit this line
+    0008 - 
+    0009 - ======================   E v e n t  definition   =========================
+    0010 -
+    0011 - Events: 
+    0012 - Event_0: (BC)-MCP1-(e+); Event_1:( BC)-TD-MCP2-(e+); Event_2: LEmuSR, (BC)-TD-e 
+    ...
+
+
+
+*Comment*: the last sub-tree ``RunSummary`` is not following ``TMusrRunHeader`` rule ``<number> - <label>: <value> -@<type>``. 
+It is added in the instrument analyzer directly by other means than the ``TMusrRunHeader::Set``-method. This is no problem! 
+Since ``RunSummary`` is not part of the required ``MusrRoot``-file. One is quite free in adding any ROOT based information here. 
+                             
+.. index:: MusrRoot-TMusrRunPhysicalQuantity
+.. _musr-run-physical-quantity:
+
+TMusrRunPhysicalQuantity - Possible Representations 
+---------------------------------------------------
+
+A physical property can be described as 
+
+::
+
+  <property name>: <value> +- <estimated error> <unit>; SP: <demand>; <description>
+  
+where ``<property name>`` is the name of the quantity, *e.g.* Sample Temperature, ``<value>`` the value 
+of the quantity, ``<estimated error>`` the error estimate, *e.g.* the standard deviation, ``<unit>`` the unit, 
+*e.g.* K, ``<demand>`` a demand value, *e.g.* the set point of the temperature. ``<description>`` is a 
+possible additional comment for this quantity.
+
+.. note:: 
+
+  Not *all* of these quantities are always needed. The list of handled combination are given 
+  hereafter together with the ``C++`` code snipped how to set it. It is assumed that ``TMusrRunPhysicalQuantity prop;`` 
+  is somewhere defined.
+  
+**Possibility 1**
+
+:: 
+
+  <property name>: <value> <unit> [; <description>]
+  
+Code snippet: 
+
+.. code-block:: c++
+
+  prop.Set("Muon Beam Momentum", 28.1, "MeV/c");
+  header->Set("RunInfo/Muon Beam Momentum", prop);
+
+  prop.Set("Time Resolution", 0.1953125, "ns", "TDC 9999");
+  header->Set("RunInfo/Time Resolution", prop);
+  
+Result in the ``RunHeader/RunInfo``:   
+
+::
+
+  011 - Muon Beam Momentum: 28.1 MeV/c -@3
+  013 - Time Resolution: 0.1953125 ns; TDC 9999 -@3
+  
+The number on front of the token (*e.g.* ``011`` in front of Muon Beam Momentum) will depend on the position where 
+the entry has been added. The last token, ``-@3``, is the encoding of the type: here ``TMusrRunPhysicalQuantity``.   
+
+**Possibility 2**
+
+::
+
+  <property name>: <val> +- <err> <unit>[; <description>]
+  
+Code snippet:   
+  
+.. code-block:: c++
+  
+  prop.Set("CF3", MRH_UNDEFINED, 3.27, 0.09, "K", "strange temperature");
+  header->Set("SampleEnvironmentInfo/CF3", prop);
+  
+Result in the ``RunHeader/SampleEnvironmentInfo``:   
+
+::
+ 
+  033 - CF3: 3.27 +- 0.09 K; strange temperature -@3 
+  
+**Possibility 3**
+
+::
+
+  <property name>: <val> <unit>; SP: <demand>[; <description>]
+    
+Code snippet:
+
+.. code-block:: c++
+
+  prop.Set("CF4", 3.25, 3.28, "K");
+  header->Set("SampleEnvironmentInfo/CF4", prop);
+
+  prop.Set("CF5", 3.26, 3.29, "K", "another strange temperature");
+  header->Set("SampleEnvironmentInfo/CF5", prop);
+  
+Result in the ``RunHeader/SampleEnvironmentInfo``:   
+
+::
+
+  034 - CF4: 3.28 K; SP: 3.25 -@3
+  035 - CF5: 3.29 K; SP: 3.26; another strange temperature -@3
+  
+**Possibility 4**
+
+::
+
+  <property name>: <value> +- <estimated error> <unit>; SP: <demand>; <description>
+    
+Code snippet:
+
+.. code-block:: c++
+  
+  prop.Set("Sample Magnetic Field", 350.0, 350.002, 0.005, "G", "WXY");
+  header->Set("RunInfo/Sample Magnetic Field", prop);
+  
+Result in the ``RunHeader/SampleEnvironmentInfo``:  
+
+::
+
+  017 - Sample Magnetic Field: 350.002 +- 0.005 G; SP: 350.0; WXY -@3
diff --git a/doc/html/_sources/musredit.txt b/doc/html/_sources/musredit.txt
new file mode 100644
index 00000000..087c5315
--- /dev/null
+++ b/doc/html/_sources/musredit.txt
@@ -0,0 +1,515 @@
+.. include:: <isogrk1.txt>
+.. index:: musredit
+
+.. _musredit-sec:
+
+``musredit``: the GUI Based Interface to ``musrfit``
+====================================================
+
+Introduction
+------------
+
+.. _Qt: https://qt.io
+
+``musredit`` is an editor which also provide a graphical user interface to the programs contained in the ``musrfit`` suite and are intended 
+to help the user handle ``musrfit`` msr files. It is implemented in ``C++`` and use the `Qt`_ framework. ``musredit`` is based on Qt 4.6, Qt 5.6 (or above), or Qt6.x. 
+The Qt 5.6 and Qt 6.x version of ``musredit`` will be actively developed, whereas the Qt 4.x version will only get bug fixing and eventually will be dropped.
+On this documentation page only the features related to ``musrfit`` are described — the basic editor functions which should be self-explanatory are *not*.
+``musrgui`` is an outdated early version of ``musredit`` and will not described anymore. If still in use, the user is urged to switch to ``musredit``.
+
+.. note::
+
+  Before going on using ``musredit`` it is strongly recommended to read the :ref:`manual of musrfit <user-manual>` first!
+  
+Available Executable, Configuration Files and their Basic Usage
+----------------------------------------------------------------
+
+musredit (musrgui)
+++++++++++++++++++
+
+``musredit`` (``musrgui``) is the editor executable. If called from within a shell it accepts a few optional parameters: 
+
+**<msr-files>**
+  File names of the msr files that should be opened in separate editor tabs on startup of ``musredit``. 
+**- -help**
+  Displays a small help notice in the shell explaining the basic usage of the program. 
+**- -version**
+  Prints the version number of ``musredit``. 
+
+If called without any parameters an empty editor window opens.
+
+.. index:: musredit_startup
+
+musredit_startup.xml
+++++++++++++++++++++
+
+``musredit_startup.xml`` is the configuration file located under ``$HOME\.musrfit\musredit``. It is also possible to have another version 
+of this file in the working directory which then will be used!
+
+In this file the following ``XML`` tags are allowed to define settings and might proof useful for all users of ``musredit``: 
+
+**<general></general>**
+  set the default paths to executable and files in this environment 
+  
+  **<exec_path>PATH_TO_EXEC</exec_path>**
+    set the path ``PATH_TO_EXEC`` where the executable ``musrfit``, ``musrview``, ``musrt0``, etc. can be found (inside the ``<general>`` environment) 
+  **<default_save_path>SAVE_PATH</default_save_path>**
+    specify the path ``SAVE_PATH`` where ``musredit`` point by default when opening and saving msr files (inside the ``<general>`` environment). Default is the current directory. 
+  **<msr_default_file_path>MSR_DEF_PATH</msr_default_file_path>**
+    set the path ``MSR_DEF_PATH`` where the default msr files provided by ``musredit`` are stored (inside the ``<general>`` environment) 
+  **<timeout>3600</timeout>**
+    timeout in seconds after which :ref:`musrview <musrview>` canvas will automatically quit. A value of 0 or 
+    a negative number will keep the ``musrview`` canvas open without self-determination.
+  **<keep_minuit2_output>y/n</keep_minuit2_output>**
+    flag indicating if the ``MINUIT2`` output shall be kept per msr-file ('y') or only for the current msr-file ('n'). 
+  **<dump_ascii>y/n</dump_ascii>**
+    flag indicating if ``musrfit`` shall dump fit data into ascii format. See help of :ref:`musrfit <musrfit>`.
+  **<dump_root>y/n</dump_root>**
+    flag indicating if ``musrfit`` shall dump fit data into root format. See help of :ref:`musrfit <musrfit>`.
+  **<title_from_data_file>y/n</title_from_data_file>**
+    specify if ``musrfit`` should be called with the ``-t`` option by default (inside the ``<general>`` environment) 
+  **<chisq_pre_run_block>y/n</chisq_pre_run_block>**
+    flag indicating if per-run chisq shall be written into the msr-output-file. 
+  **<estimate_n0>y/n</estimate_n0>** 
+    flag indicating if for a single histogram fit :math:`N_0` shall be estimated before the fit procedure starts. 
+  **<musrview_show_fourier>y/n</musrview_show_fourier>**
+    flag indicating if ``musrview`` will directly present the Fourier transform rather than the time domain data. 
+  **<musrview_show_avg>y/n</musrview_show_avg>**
+    flag indicating if ``musrview`` will directly present averaged data, typically used for Fourier power spectra. 
+  **<enable_musrt0>y/n</enable_musrt0>**
+    specify if :ref:`musrt0 <musrt0>` can be called from within ``musredit`` (inside the ``<general>`` environment) 
+    
+**<font_settings></font_settings>**
+  set the default font in this environment 
+    
+  **<font_name>FONT</font_name>**
+    specify the name of the font ``FONT`` to be used by default in ``musredit`` (inside the ``<font_settings>`` environment) 
+  **<font_size>N</font_size>**
+    specify the size ``N`` of the font to be used by default in ``musredit`` (inside the ``<font_settings>`` environment)
+    
+**<msr_file_defaults></msr_file_defaults>**
+  put the default settings for newly created msr files in this environment
+
+  **<beamline>BL</beamline>**
+    set the name of the muon beamline ``BL`` here (inside a ``<msr_file_defaults>`` environment) 
+  **<institute>INST</institute>**
+    set the name of the facility ``INST`` where the beamline ``BL`` is located. Valid settings are ``PSI``, ``RAL``, ``JPARC``, and ``TRIUMF`` (inside a ``<msr_file_defaults>`` environment) 
+  **<file_format>FF</file_format>**
+    specify the default data file format ``FF`` here. Valid formats are ``NEXUS``, ``MUSR-ROOT``, ``ROOT-NPP``, ``ROOT-PPC``, ``PSI-BIN``, ``PSI-MDU``, ``MDU-ASCII``, ``WKM``, ``MUD``, ``ASCII``, and ``DB`` (inside a ``<msr_file_defaults>`` environment) 
+  **<lifetime_correction>y/n</lifetime_correction>**
+    choose if by default the ``lifetimecorrection`` option should be set (inside a ``<msr_file_defaults>`` environment) 
+
+**<msr2data_defaults></msr2data_defaults>**
+  define the default options for calling :ref:`msr2data <msr2data>` in this environment; the options set here are ticked by default in the graphical interface of ``musredit``.     
+  
+  **<chain_fit>y/n</chain_fit>**
+    (un)set the chain fit (!) option (inside a ``<msr2data_defaults>`` environment) 
+  **<write_data_header>y/n</write_data_header>**
+    (un)set the noheader option (inside a ``<msr2data_defaults>`` environment) 
+  **<ignore_data_header_info>y/n</ignore_data_header_info>**
+    (un)set the nosummary option (inside a ``<msr2data_defaults>`` environment) 
+  **<keep_minuit2_output>y/n</keep_minuit2_output>**
+    (un)set the ``-k`` option (inside a ``<msr2data_defaults>`` environment) 
+  **<write_column_data>y/n</write_column_data>**
+    (un)set the ``data`` option (inside a ``<msr2data_defaults>`` environment) 
+  **<create_msr_file_only>y/n</create_msr_file_only>**
+    (un)set the ``msr`` option in case a template run is specified (inside a ``<msr2data_defaults>`` environment) 
+  **<fit_only>y/n</fit_only>**
+    (un)set the ``fit`` option in case no template run is specified (inside a ``<msr2data_defaults>`` environment) 
+  **<global>y/n</global>**
+    (un)set the ``global`` option (inside a ``<msr2data_defaults>`` environment) 
+  **<global_plus>y/n</global_plus>**
+    (un)set the ``global+`` option (inside a ``<msr2data_defaults>`` environment) 
+  **<recreate_data_file>y/n</recreate_data_file>**
+    (un)set the ``musredit`` option for recreating the output file (inside a ``<msr2data_defaults>`` environment) 
+  **<open_file_after_fitting>y/n</open_file_after_fitting>**
+    (un)set the ``musredit`` option for opening msr files after fitting (inside a ``<msr2data_defaults>`` environment)
+    
+Additionally, there are some settings defined in this XML file which should be only changed by experienced users who like to add new features to ``musredit``:     
+
+**<help_section></help_section>**
+  define various help messages in this environment
+
+  **<musr_web_X>LINK</musr_web_X>**
+    define the ``LINK`` to the help page ``musr_web_X``, where ``X`` is ``main``, ``title``, ``parameters``, ``theory``, ``functions``, ``run``, 
+    ``command``, ``fourier``, ``plot``, ``statistics``, ``msr2data``, or ``musrFT`` (inside a ``<help_section>`` environment) 
+
+**<func_pixmap_path>PIX_PATH</func_pixmap_path>**
+  set the path ``PIX_PATH`` to LaTeX pixmaps visualizing the various supported theory functions 
+  
+**<theory_functions></theory_functions>**
+  define the functions for a msr file's :ref:`THEORY block <msr-theory-block>` according to the correct syntax in this environment   
+  
+  **<func></func>** 
+    specify a function here (inside a ``<theory_functions>`` environment) 
+    
+    **<name>NAME</name>**
+      the ``NAME`` of the function in the msr file (inside a ``<func>`` environment) 
+    **<comment>COMMENT</comment>**
+      description of the used parameters (inside a ``<func>`` environment) 
+    **<label>LABEL</label>**
+      ``LABEL`` of the function in the ``musredit`` menu (inside a ``<func>`` environment) 
+    **<pixmap>PIXMAP</pixmap>**
+      LaTeX picture used to describe the function and stored in the ``PIX_PATH`` (inside a ``<func>`` environment) 
+    **<params>N</params>**
+      number of parameters ``N`` used by the function (inside a ``<func>`` environment) 
+      
+An example of the ``musredit_startup.xml`` looks like:    
+
+.. code-block:: xml
+
+  <?xml version="1.0" encoding="UTF-8"?>
+  <musredit_startup xmlns="http://lmu.web.psi.ch/musrfit/user/MUSR/MusrGui.html">
+    <comment>
+      This is handling default setting parameters for the musredit.
+    </comment>
+    <general>
+      <exec_path>/usr/local/root/bin</exec_path>
+      <default_save_path>./</default_save_path>
+      <msr_default_file_path>/usr/local/root/share/doc/musrfit/templates</msr_default_file_path>
+      <timeout>3600</timeout>
+      <keep_minuit2_output>n</keep_minuit2_output>
+      <dump_ascii>n</dump_ascii>
+      <dump_root>n</dump_root>
+      <title_from_data_file>y</title_from_data_file>
+      <chisq_per_run_block>n</chisq_per_run_block>
+      <estimate_n0>y</estimate_n0>
+      <musrview_show_fourier>n</musrview_show_fourier>
+      <musrview_show_avg>n</musrview_show_avg>
+      <enable_musrt0>y</enable_musrt0>
+    </general>
+    <recent_files>
+      <path_file_name>/usr/local/root/share/doc/musrfit/examples/test-histo-PSI-BIN.msr</path_file_name>
+    </recent_files>
+    <help_section>
+      <musr_web_main>file:///usr/local/root/share/doc/musrfit/html/user/MUSR/MusrFit.html</musr_web_main>
+      <musr_web_title>file:///usr/local/root/share/doc/musrfit/html/user/MUSR/MusrFit.html#TheTitle</musr_web_title>
+      <musr_web_parameters>file:///usr/local/root/share/doc/musrfit/html/user/MUSR/MusrFit.html#TheFitparameterBlock</musr_web_parameters>
+      <musr_web_theory>file:///usr/local/root/share/doc/musrfit/html/user/MUSR/MusrFit.html#TheTheoryBlock</musr_web_theory>
+      <musr_web_functions>file:///usr/local/root/share/doc/musrfit/html/user/MUSR/MusrFit.html#TheFunctionsBlock</musr_web_functions>
+      <musr_web_run>file:///usr/local/root/share/doc/musrfit/html/user/MUSR/MusrFit.html#TheRunBlock</musr_web_run>
+      <musr_web_command>file:///usr/local/root/share/doc/musrfit/html/user/MUSR/MusrFit.html#TheCommandsBlock</musr_web_command>
+      <musr_web_fourier>file:///usr/local/root/share/doc/musrfit/html/user/MUSR/MusrFit.html#TheFourierBlock</musr_web_fourier>
+      <musr_web_plot>file:///usr/local/root/share/doc/musrfit/html/user/MUSR/MusrFit.html#ThePlotBlock</musr_web_plot>
+      <musr_web_statistic>file:///usr/local/root/share/doc/musrfit/html/user/MUSR/MusrFit.html#TheStatisticBlock</musr_web_statistic>
+      <musr_web_msr2data>file:///usr/local/root/share/doc/musrfit/html/user/MUSR/Msr2Data.html</musr_web_msr2data>
+      <musr_web_musrFT>file:///usr/local/root/share/doc/musrfit/html/user/MUSR/MusrFit.html#A_2.3_musrFT</musr_web_musrFT>
+    </help_section>
+    <font_settings>
+      <font_name>Monospace</font_name>
+      <font_size>12</font_size>
+    </font_settings>
+    <msr_file_defaults>
+      <beamline>mue4</beamline>
+      <institute>psi</institute>
+      <file_format>musr-root</file_format>
+      <lifetime_correction>y</lifetime_correction>
+    </msr_file_defaults>
+    <msr2data_defaults>
+      <chain_fit>y</chain_fit>
+      <write_data_header>y</write_data_header>
+      <ignore_data_header_info>n</ignore_data_header_info>
+      <keep_minuit2_output>n</keep_minuit2_output>
+      <write_column_data>n</write_column_data>
+      <recreate_data_file>n</recreate_data_file>
+      <open_file_after_fitting>y</open_file_after_fitting>
+      <create_msr_file_only>n</create_msr_file_only>
+      <fit_only>n</fit_only>
+      <global>n</global>
+      <global_plus>n</global_plus>
+    </msr2data_defaults>
+    <func_pixmap_path>/usr/local/root/share/doc/musrfit/latex_images</func_pixmap_path>
+    <theory_functions>
+      <func>
+        <name>asymmetry</name>
+        <comment></comment>
+        <label>Asymmetry</label>
+        <pixmap>asymmetry.png</pixmap>
+        <params>1</params>
+      </func>
+      <func>
+        <name>statGssKT</name>
+        <comment>(rate)</comment>
+        <label>static Gauss KT</label>
+        <pixmap>statGssKT.png</pixmap>
+        <params>1</params>
+      </func>
+    </theory_functions>
+  </musredit_startup>
+  
+.. index:: musredit-features
+
+musredit Features
+-----------------
+
+The features of ``musrfit`` which can be accessed by the graphical front ends ``musredit`` will be described in the following. All functions 
+can either be called by choosing them from the *MusrFit menu*, by clicking the respective button in the *MusrFit bar*, or by using a *keyboard shortcut*. 
+
+**musrWiz**
+
+  .. image:: ../images/musrWiz.* 
+
+  ``musrWiz`` is a helper programs which allows to create a msr-file from scratch without too much a priori knowledge. For details see :ref:`musrWiz <musrWiz>`. 
+
+.. index:: musrWiz
+.. _musrWiz:
+
+**Calculate Chisq**
+
+  .. image:: ../images/musrchisq.*
+
+  Calls ``musrfit`` with the option ``-c``, *i.e.* calculates the :math:`\chi^2` or log max-likelihood for the active msr file tab. Shortcut-key: ``Alt+C``.
+  The equivalent call on the command line would be
+
+  .. code-block:: bash
+
+    $ musrfit -c <msr-file>
+
+**Fit**    
+  
+  .. image:: ../images/musrfit.*
+  
+  Calls ``musrfit`` for fitting of the active msr file in the currently active tab. Shortcut-key: ``Alt+F``.
+  The equivalent call on the command line could look like
+  
+  .. code-block:: bash
+  
+    $ musrfit <msr-file> [optional parameters]
+    
+  The optional parameters may be chosen under :ref:`Preferences <musredit-prefs>`. For further information refer to the manual of :ref:`musrfit <user-manual>`. 
+
+**Swap Msr <-> Mlog**
+
+  .. image:: ../images/musrswap.*
+  
+  Swap the msr and mlog files. *E.g.*, for a file called ``8472_zf.msr``, this is copied to ``8472_zf.mlog`` and vice versa. Shortcut-key: ``Alt+S``.
+  
+**Set Steps**
+
+  .. image:: ../images/musrStep.*
+  
+  ``musrStep`` allows to adjust the step size, *i.e.* the initial steps for the fitter. Shortcut-key: ``Alt+P``.
+  
+**Msr2Data**
+
+  .. image:: ../images/msr2data.*
+  
+  Opens a graphical interface to the ``msr2data`` program described in detail in its :ref:`own manual <msr2data>`. Shortcut-key: ``Alt+2``.
+  
+**mupp**
+
+  .. image:: ../images/mupp.*
+  
+  Application which allows to plot ``*.db`` and ``*.dat`` parameter files. Shortcut-key: ``Alt+U``.
+  For a detailed description see the :ref:`mupp docu <mupp>`.
+  
+**View**
+
+  .. image:: ../images/musrview.*
+  
+  Calls ``musrview`` from the active tab of ``musredit``. For more details see the :ref:`musrview <musrview>` docu. Shortcut-key: ``Alt+V``.
+  The equivalent call on the command line could look like
+  
+  .. code-block:: bash
+  
+    $ musrview <msr-file> [optional parameters]
+    
+**T0**
+
+  .. image:: ../images/musrt0-icon.*
+  
+  Calls ``musrt0`` which allows to set the ``T0`` values for all the runs. For more details see the :ref:`musrt0 <musrt0>` docu.
+  The equivalent call on the command line could look like
+  
+  .. code-block:: bash
+  
+    $ musrt0 <msr-file> [optional parameters]
+    
+**Raw Fourier**
+
+  .. image:: ../images/musrFT.*
+  
+  Calls ``musrFT`` which allows to perform a Fourier transform of the raw data. For more details see the :ref:`musrFT <musrFT>` docu. 
+  The equivalent call on the command line could look like
+  
+  .. code-block:: bash
+
+    $ musrFT <msr-file> [optional parameters]
+
+.. _musredit-prefs:  
+  
+**Preferences**
+
+  .. image:: ../images/musrprefs.*
+
+  Opens a window in which the optional parameters that should be passed to musrfit can be chosen.
+  For further information refer to the manual of :ref:`musrfit <musrfit>`. 
+  
+**Dump Header**
+
+  .. image:: ../images/musrdump.*
+  
+  Opens a file dialog which allows to select a |mgr|\SR data file. When this file can be read, the run header info is dumped into a dialog window. 
+  Essentially this calls ``dump_header`` internally. 
+  
+musrWiz
+-------
+
+``musrWiz`` is a helper program which allows to easily create the necessary msr-file needed as an input for ``musrfit``. 
+``musrWiz`` is still in it's early stage; not all options are already implemented and here and there you will likely find some bugs. 
+From ``musredit`` it can be accessed via the MusrFit menu or the wand 
+
+.. image:: ../images/musredit-musrWiz.*
+
+The ``musrWiz`` GUI is organized in a couple of different dialogues which some information needs to be provided by the user. 
+In the following these different dialogues will be discussed briefly. 
+
+.. index:: musrWiz-Introduction
+
+musrWiz-Introduction
+++++++++++++++++++++
+
+The introduction dialogue 
+
+.. image:: ../images/musrWiz-Intro.*
+
+#. an explicit msr-file name can be provided here. More often the msr-file name is generated out of the run number.
+#. year of the run data.
+#. run number. If no explicit msr-file is provided, the run number together with fit type and type of measurement will be used to generate the msr-file name.
+#. from the pull down menu the institute (for which a necessary ``xml``-file is provided) has to be choosen.
+#. from the pull down menu the the instrument can be chosen.
+#. the fit type has to be chosen. Possible fit types are: ``Single Histo`` / ``Single Histo RRF`` / ``Asymmetry`` / ``Asymmetry RRF`` / ``Mu Minus`` / ``None muSR``
+#. type of measurement is essentially needed for the grouping of the detectors. Possible are: ``ZF`` for zero field measurements / ``TF`` for transverse field measurements / ``LF`` for longitudinal field measurements. 
+   Depending on the choice and instrument some additional question might be asked, *e.g.* which magnet has been used.
+#. ``T0``'s: this last menu defines from where to get the t0's. The options are: ``from data file``, *i.e.* the t0 are assumed to be correctly set 
+   in the provided data file ``call musrT0``, *i.e.* after the msr-file is generated, ``musrt0`` will be called which allows the user to find the 
+   proper t0 from the prompt peak ``enter here`` will provide a pop-up menu where the t0 parameter can be given explicitly. 
+   
+If all this information have been provided ``Next>`` will lead you the the theory dialogue.   
+
+.. index:: musrWiz-Theory
+
+musrWiz - Theory
+++++++++++++++++
+
+The theory dialogue is used to define the fitting function. There are two ways of using it:
+
+#. choose a template theory function. This option has the advantage that the next steps will be very easy because 
+   within the template almost everything is already pre-defined. The disadvantage is that you are not free in setting 
+   up your theory function as you would like to have.
+#. freely write your theory function. The advantage here is that you can customize your theory function at your needs. 
+   This will come at the cost that you also will need to define ``maps``, ``functions``, etc. yourself. The good thing    
+   though is that at the very end you can save this as a template for future re-use. 
+
+First the template path will be described. The theory dialogue looks like this
+
+.. image:: ../images/musrWiz-Theory.*
+
+#. This is a text edit field were you can enter the theory fit function as you would like to have it. In the example 
+   given the theory reads :math:`p1 \exp(-p2\, t) \cos(2 \pi\, f1 + m1)`, where ``pX`` stands for parameter, ``fX`` for function, 
+   ``mX`` for map, and ``X`` for the corresponding number.
+#. The ``Clear All`` button will clear whatever you entered in the text field above.
+#. This pull-down menu allows to select a theory function which will be added to the text field above by pressing 
+   the ``Add`` button. Pre defined theory function starting with a ``T`` are templates rather than only theory function strings.
+#. The ``Add`` button is used to add the chosen theory function / template from the pull-down menu to its left.
+#. The ``Check`` button is used to make a syntactical check of whatever is written in the text edit field. 
+
+.. index:: musrWiz-Functions
+
+musrWiz - Functions
++++++++++++++++++++
+
+In the Functions dialogue all the necessary functions can be entered. A function operates *only* on fitting parameters. 
+This is different to the theory function which operates on the fitting parameters and the time. The dialogue looks like this 
+
+.. image:: ../images/musrWiz-Functions.*
+
+
+#. a text edit field in which the various needed functions can be entered. In case a template theory is used, the appropriate function should be shown here and *no* editing will be needed here.
+#. pressing ``Show Theory`` button will pop-up a little window showing the previously entered theory function. This is handy when defining its own theory, *i.e.* not working with a template. 
+
+.. image:: ../images/musrWiz-Functions-and-Theory.*
+
+.. index:: musrWiz-Maps
+
+musrWiz - Maps
+++++++++++++++
+
+.. image:: ../images/musrWiz-Maps.*
+
+The map dialogue will list the maps previously used in the theory and functions blocks/dialogues before. Again, if a template is used, nothing needs to be entered here.
+
+#. The ``Show Theory`` button allows to show the currently defined theory and the functions. 
+
+.. index:: musrWiz-FitParam
+
+musrWiz - Fit Parameters
+++++++++++++++++++++++++
+
+.. image:: ../images/musrWiz-FitParam.*
+
+In the fit parameter dialogue all parameter names can be defined. Furthermore the starting values for the parameters, the step 
+(initial step size for the parameter fit), and any boundaries can be defined here. 
+
+#. The ``Show Theory`` button allows to show the currently defined theory and the functions.
+
+.. index:: musrWiz-FitInfo
+
+musrWiz - Fit Info
+++++++++++++++++++
+
+Collects all the ``musrfit`` and ``MINUIT2`` specific fit commands.
+
+.. image:: ../images/musrWiz-FitInfo.*
+
+
+#. allows to define the time fit range (start time, end time).
+#. packing defines how many bins of the original data shall be combined (added, also called re-binning).
+#. in this text field to fitting commands are given (see the ``MINUIT`` and :ref:`musrfit <msr-commands-block>` manual for details). 
+
+.. index:: musrWiz-Create
+
+musrWiz - Create
+++++++++++++++++
+
+Collects the last necessary information before creating the msr-file.
+
+.. image:: ../images/musrWiz-Create.*
+
+
+#. shows the path where the msr-file will be saved. If you would like to save it somewhere else press the ``Save As (msr-file path)`` button.
+#. pressing this button will allow you to find the path where to save the msr-file.
+#. pressing this button will save to current configuration as a template for future re-use. 
+
+.. index:: musrStep
+
+musrStep
+--------
+
+``musrStep`` is a little helper program which allows to reset the initial step size. This sometimes comes very handy if working on an instrument 
+with many detectors after a fit slightly went wrong leaving you with a far too small initial step size for further iterations. To edit all the steps 
+individually is tedious and error prone. Here ``musrStep`` can help. 
+
+.. image:: ../images/musrStep-GUI.*
+
+When invoking ``musrStep`` the above dialogue will popup
+
+#. shows the relevant parts of the FITPARAMETER block. The only editable column is step.
+#. ``Check Specific`` will popup a dialogue where a template string can be entered, *e.g.* ``Asym``. As a result all fit parameters containing the template string will be selected.
+#. ``Check All`` will select all fit parameters.
+#. ``Uncheck All`` will unselect all fit parameters.
+#. ``Modify Automatic`` will change all the step values automatically. It basically sets all the step sizes to 1% of 
+   the corresponding fit parameter value, except the phases where the step will be set to a value of 5 degrees.
+#. ``Modify Selected`` will start the dialogue shown beneath. Follow the description there.
+#. ``Save&Quit`` will save the current step values, close the dialogue and reload the modified msr-file.
+#. ``Cancel`` will cancel the ``musrStep`` dialogue without modifying anything. 
+
+.. image:: ../images/musrStep-Modify-Selected.*
+
+When clicking on ``Modify Selected`` the above dialogue will be presented. It allows to manipulate all selected fit parameter step values according to the following rules 
+
+#. ``Scale by Factor`` will scale the step value by the factor given in the field (2). If the ``Absolute Value`` check box is selected, rather than scaling the factor value will be used to modify the step value.
+#. scaling factor or absolute value to modify the step values of the selected fit parameters.
+#. checking the ``Absolute Value`` check box will change the meaning from *Scale by Factor* to *Copy Factor Value*.
+#. ``Scale Automatically`` will modify the step values of the selected fit parameters according to the rules described before.
+#. ``Cancel`` will cancel the dialogue. 
diff --git a/doc/html/_sources/setup-dks.txt b/doc/html/_sources/setup-dks.txt
new file mode 100644
index 00000000..0ea9328b
--- /dev/null
+++ b/doc/html/_sources/setup-dks.txt
@@ -0,0 +1,275 @@
+:tocdepth: 3
+
+.. include:: <isogrk1.txt>
+.. index:: dks
+
+.. _setup-dks:
+
+Setting up ``musrfit`` / ``DKS``: High Speed Fitting with GPU's 
+===============================================================
+
+In the years 2016/2017 we explored ways to speed up current fitting frameworks, especially ``musrfit.`` 
+This allows now to analyze histogram sets of high field spectrometers like ``HAL-9500`` at PSI without 
+the *error-prone* RRF fitting (see U. Locans and A. Suter, 
+`musrfit - Real Time Parameter Fitting Using GPU <http://dx.doi.org/10.7566/JPSCP.21.011051>`_, and the 
+Memo from A. Suter, "Rotating Reference Frame Fits", in the ``musrfit`` source code). At the same time 
+it can help to speed-up elaborate global fits tremendously, and dealing properly with muonium. It also 
+allows Apple macOS users to speed up their fitting code on the CPU. Currently it is not straight forward 
+to get ``musrfit`` multi-threaded under macOS since Apple doesn't be default support ``OpenMP``. ``DKS`` 
+enables ``musrfit`` to utilize ``OpenCL`` instead which is present on macOS by default. 
+
+.. warning:: 
+
+  Before you run into the shop to buy a gamer graphic card or a Tesla card, make sure that you have an 
+  appropriate server with a sufficiently strong power supply! 
+  
+.. note::
+
+  However, the current ``musrfit/DKS`` version doesn't yet support all theory functions on the GPU. 
+  In case the theory function is not yet available for the GPU, ``musrfit`` will fall back to the CPU implementation. 
+  
+Conceptually the setup of ``musrfit/DKS`` is as following:
+
+#. install the latest hardware driver for your graphic card.
+#. install the GPU SDK which enables number crunching (``CUDA`` for NVIDIA, ``OpenCL`` for AMD)
+#. install ``DKS``
+#. install the ``musrfit`` version which is ``DKS`` ready   
+
+In the following the description for the installation of ``musrfit/DKS`` for the following systems will be discussed in some more detail:
+
+* NVIDIA Tesla K40c
+* AMD Graphic Card (Radeon R9 390X)
+* macOS in order to get ``OpenCL`` support 
+
+The usage of ``musrfit`` with GPU acceleration and ``OpenCL`` support is described in the 
+:ref:`User manual of the μSR data analysis software musrfit <user-manual>`. The additional 
+``musrfit/DKS`` are found :ref:`here <msr-commands-block-dks>`.
+
+.. index:: dks-setup-tesla
+
+Setting up ``musrfit/DKS`` for a Tesla K40c (NVIDIA) 
+----------------------------------------------------
+
+It is assumed that the Tesla K40c is already physically installed on your system. For now I only 
+will discuss to set it up for a Linux based system. In order to check that your operating systems 
+see the card, enter the following command in the terminal: 
+
+.. code-block:: bash
+
+  $ lspci | grep NVIDIA
+
+The response should look something like 
+
+::
+
+  05:00.0 3D controller: NVIDIA Corporation GK110BGL [Tesla K40c] (rev a1)
+  
+which means that the OS physically recognizes your card. 
+
+Driver Installation for the Tesla K40c 
+++++++++++++++++++++++++++++++++++++++
+
+Next, you will need to download and install the driver for your card. Select the proper operating system, 
+card, etc. from the `NVIDIA download center <http://www.nvidia.com/Download/index.aspx?lang=en-us>`_. At PSI 
+we are running currently Red Hat Enterprise Linux 7.x (RHEL) for which we will get a ``rpm`` (something like 
+``nvidia-diag-driver-local-repo-rhel7-375.66-1.x86_64.rpm``). Install it and make sure there is no conflict 
+with the nouveau driver of the system. 
+
+.. index:: cuda-install
+
+Installation of CUDA
+++++++++++++++++++++
+
+Download the `CUDA SDK <https://developer.nvidia.com/cuda-downloads>`_ form NVIDIA for your system. Again, 
+for the RHEL 7.x this is an ``rpm``. After the installation of the rpm you should reboot your machine. 
+Afterwards you are ready for the installation of ``DKS``. 
+
+.. index:: dks-install
+
+Installation of DKS
++++++++++++++++++++
+
+For the following list of commands the ``'$'`` will be given as the command prompt. *Do not enter it!* 
+Also some comments will be added starting with a ``'#'`` which can be omitted. They are only there to 
+explain what is going on. ``DKS`` stands for Dynamical Kernel Scheduler and provides a thin interface 
+allowing host applications to incorporate GPU's and other hardware accelerators.
+
+Details can be found in the papers listed :ref:`here <cite>`, or on the `DKS wiki page <https://gitlab.psi.ch/uldis_l/DKS/wikis/home>`_.
+
+In brief the installation should be something like this:
+
+.. code-block:: bash
+
+  # go to whatever directory you would like to clone/install DKS
+  # For macOS DKS will likely to got to $HOME/Applications to be consistent with the musrfit docu for macOS
+  $ cd $HOME/Apps
+  $ git clone https://gitlab.psi.ch/uldis_l/DKS.git
+  $ cd DKS
+  $ mkdir build
+  $ cd build
+  $ cmake ../ -DENABLE_MUSR=1 -DCMAKE_INSTALL_PREFIX=../exec
+  $ cmake --build ./ --clean-first
+  $ make install
+  
+Since ``DKS`` is installed in a non-standard path, a couple of additional small steps are required. 
+This will be different for Linux compared to macOS.
+
+For **Linux:**
+
+add the ``DKS`` library path to ``/etc/ld.so.conf.d/musrfit-x86_64.conf`` and execute as super user
+
+.. code-block:: bash
+
+  $ /sbin/ldconfig
+  
+For **macOS:**  
+
+add the ``DKS`` path to ``$HOME/.profile``:
+
+.. code-block:: bash
+
+  export DKS=$HOME/Applications/DKS/exec
+  export LD_LIBRARY_PATH=$DKS/lib:$LD_LIBRARY_PATH
+
+  launchctl setenv DKS $DKS
+  launchctl setenv LD_LIBRARY_PATH $LD_LIBRARY_PATH
+  
+  
+.. _musrfit-dks-install:  
+  
+Installation of musrfit for DKS 
++++++++++++++++++++++++++++++++
+ 
+Most of the installation steps are the same as described for ``musrfit`` without GPU support. 
+Here only the differences are explained. First checkout ``musrfit``, then you will need to 
+switch the working branch which is done by
+ 
+.. code-block:: bash
+ 
+ $ cd $HOME/Apps/musrfit
+ $ git checkout dks6
+ 
+Install via cmake
+^^^^^^^^^^^^^^^^^
+
+There is on more configuration switch 
+
+**-Ddks=<value>**
+  it allows to enable/disable ``DKS`` support. The default is ``<value>=1``, *i.e.* enabled. To disable use ``<value>=0``. 
+  
+For a typical setup on a RHEL or macOS system it could look like this   
+
+.. code-block:: bash
+
+  $ cmake ../ -DCMAKE_INSTALL_PREFIX=$ROOTSYS -DASlibs=1 -DBMWlibs=1 -Dnexus=1 -Ddks=1
+
+After
+
+.. code-block:: bash
+
+  $ cmake --build ./ --clean-first -- -j8
+  $ make install
+  
+and updating the shared library lookup table (*only* needed for Linux)   
+
+.. code-block:: bash
+
+  $ /sbin/ldconfig # as superuser / root
+  
+you are done with the setup. 
+
+.. index:: dks-setup-amd-graphic-card
+
+Setting up ``musrfit/DKS`` for a AMD Graphic Card (Radeon R9 390X)
+------------------------------------------------------------------
+
+Driver Installation for an AMD Graphic Card, *e.g.* Radeon R9 390X 
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+This will depend slightly on the AMD Card and operating system. Here I will summaries how it was done 
+on a RHEL (Linux) system using a Radeon R9 390X.
+
+It is assumed that the Radeon R9 390X is already physically installed on your system. For now I only 
+will discuss to set it up for a Linux based system. In order to check that your operating systems see 
+the card, enter the following command in the terminal:
+
+.. code-block:: bash
+
+  $ lspci | grep AMD
+  
+The response should look something like   
+
+::
+
+  84:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Hawaii XT / Grenada XT [Radeon R9 290X/390X] (rev 80)
+  
+which means that the OS physically recognizes your card.   
+
+For RHEL7.x the AMDGPU-PRO driver should be used. It can be downloaded from `AMD <http://support.amd.com/en-us/kb-articles/Pages/AMDGPU-PRO-RedHat-Install.aspx>`_. Unpack the driver 
+
+.. code-block:: bash
+
+  $ tar -Jxvf amdgpu-pro-17.10-414273.tar.xz
+  $ cd amdgpu-pro-17.10-414273
+
+Install the driver as root
+
+.. code-block:: bash
+
+  $ ./amdgpu-pro-install --compute -y
+  
+Here I assume that the AMD graphic card is only used for computation. You need to add the following command 
+in order that the user **blabla** (change this to the appropriate user name) can access the GPU (otherwise 
+only root works):   
+
+.. code-block:: bash
+
+  $ /sbin/usermod -a -G video blabla
+  
+Reboot the machine. 
+
+AMD APP Software Development Kit (SDK) to enable ``OpenCL`` support
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+The AMD APP Software Development Kit (SDK) is a complete development platform created by AMD to allow you to 
+quickly and easily develop applications accelerated by AMD APP technology. The SDK provides samples, documentation, 
+and other materials to quickly get you started leveraging accelerated compute using ``OpenCL`` or ``C++ AMP`` in your 
+``C/C++`` applications. 
+
+Download the AMD APP SDK 3.0 from `AMD-SDK <http://developer.amd.com/tools-and-sdks/opencl-zone/amd-accelerated-parallel-processing-app-sdk/>`_.
+
+Extract the installer
+
+.. code-block:: bash
+
+  $ tar -xvjf AMD-APP-SDKInstaller-v3.0.130.136-GA-linux64.tar.bz2
+
+Run the installer
+
+.. code-block:: bash
+
+  $ ./AMD-APP-SDK-v3.0.130.136-GA-linux64.sh
+
+This will install the AMD APP SDK to ``/opt/AMDAPPSDK-3.0/`` where you can find the ``OpenCL`` include 
+and library files, as well as documentation and sample code. The install guide for AMD OpenCL SDK can 
+be found at `AMD SDK Installation Notes <http://developer.amd.com/wordpress/media/2012/10/AMD_APP_SDK_InstallationNotes.pdf>`_.
+
+Installation of DKS and musrfit
++++++++++++++++++++++++++++++++
+ 
+To install ``DKS`` and ``musrfit`` follow the instructions :ref:`above <musrfit-dks-install>`.
+
+.. index:: dks-opencl-macOS
+
+Setting up ``musrfit/DKS`` for macOS for OpenCL support 
+-------------------------------------------------------
+
+Since Apple is not providing an out-of-the-box ``OpenMP`` support on their macOS compiler framework (Xcode), 
+typically ``musrfit`` is just running *single threaded*. Here ``DKS`` can help since it delivers ``OpenCL`` 
+support which is present on macOS. Hence, if you would like to run ``musrfit`` multi-threaded the easiest 
+way is to use ``DKS``. 
+
+Since there is no graphic card involved, you do not need any graphic card driver of additional SDK. 
+The only thing you need ``DKS`` and the proper ``musrfit`` version.
+
+The installation instruction for ``DKS/musrfit`` can be found :ref:`here <musrfit-dks-install>`. 
diff --git a/doc/html/_sources/setup-standard.txt b/doc/html/_sources/setup-standard.txt
new file mode 100644
index 00000000..6c37b6bf
--- /dev/null
+++ b/doc/html/_sources/setup-standard.txt
@@ -0,0 +1,1379 @@
+:tocdepth: 4
+
+.. include:: <isogrk1.txt>
+.. index:: setup
+
+.. _musrfit-setup:
+
+Setting up ``musrfit`` on Different Platforms
+=============================================
+
+.. index:: supported-operating-systems
+.. _supported-operating-systems:
+
+Supported Operating Systems and Software Requirements
+-----------------------------------------------------
+
+This page is intended to demonstrate for the interested user which steps are necessary to set up the `free software <http://www.gnu.org/philosophy/free-sw.html>`_ 
+|mgr|\SR data analysis framework :ref:`musrfit <user-manual>`. While the preferred way is to run the software on **GNU/Linux** or **MacOS X/macOS**, with some restrictions 
+it can also be set up under **MS Windows** (cygwin, only for the *very brave*, probably it is easier for most MS Windows users to install a Virtual Machine running Linux). 
+
+.. note::
+
+  In case musrfit should be installed according to the description found on this page, the user is strongly encouraged to *read completely* each section dealing with the 
+  present installation step *before* starting the installation process!
+
+Apart from `GCC, the GNU Compiler Collection <http://gcc.gnu.org/>`_ (``gcc``, ``g++``), the build tool `cmake <https://cmake.org/>`_ is needed. Furthermore the helper 
+tool `pkg-config <http://pkg-config.freedesktop.org/wiki/>`_ needs to be in place, and musrfit requires the installation of a few open-source libraries and programs including 
+their header packages:  
+
+.. index:: boost-c++
+
+**boost C++ libraries**
+  The powerful Spirit parser framework used by musrfit is included in that collection of libraries. *Required version ≥ 1.33* (see `boost C++ libraries <http://www.boost.org/>`_).
+
+.. index:: gnu-gsl  
+
+**GNU Scientific Library**
+  A numerical ``C`` and ``C++`` library which provides efficient implementations of various mathematical routines. *Required version ≥ 1.9* (see `GNU Scientific Library <http://www.gnu.org/software/gsl/>`_). 
+
+.. index:: fftw
+
+**FFTW**
+  A ``C`` implementation for the fast computation of discrete Fourier transforms. *Required version ≥ 3.1* (see `FFTW <http://www.fftw.org/>`_). 
+
+.. index:: root-cern
+
+**ROOT**
+  A C++ data analysis framework developed at `CERN <http://www.cern.ch/>`_. *Required version ≥ 5.22* (see `ROOT <http://root.cern.ch/>`_).
+
+.. index:: libxml2   
+
+**libxml2**  
+  The ``XML C`` parser and toolkit of `gnome <http://www.gnome.org/>`_. *Required version ≥ 2.0* (see `libxml2 <http://xmlsoft.org/>`_). 
+  
+Additionally, *only* if ``musrfit`` should support reading of data files in the `NeXus` format the following libraries are needed:   
+  
+.. index:: hdf4    
+
+**HDF4**
+  A library and multi-object file format for storing and managing data (see `HDF4 <http://www.hdfgroup.org/products/hdf4/>`_). ``HDF4`` is "outdated" and its support will soon be dropped. The single only reason why it is still required is that ISIS is not able to cope to implement HDF5 V2 of the NeXus muon instrument specification which has been agreed in 2012!   
+
+.. index:: hdf5  
+
+**HDF5**
+  A data model, library, and file format for storing and managing data (see `HDF5 <https://portal.hdfgroup.org/display/support>`_). 
+
+.. index:: minixml
+
+**minixml**
+  A small ``XML`` library that can be used to read and write ``XML`` and ``XML``-like data files. *Required version ≥ 2.2* (see `minixml <http://www.minixml.org/>`_).
+  Currently the ``MXML`` support in ``NeXus`` is broken and hence you will **not** need to install ``minixml`` for the time being. 
+
+.. index:: nexus
+
+**NeXus**
+  A common data format for neutron, x-ray, and muon science. *Required version ≥ 4.4* (see `NeXus <http://www.nexusformat.org/>`_). 
+  
+If *optionally* the editor and graphical user interface ``musrgui`` / ``musredit`` is going to be installed there is one further requirement: 
+
+.. index:: qt
+
+**Qt**
+  A cross-platform application and user interface framework. *Required version ≥ 4.6* (musredit) (see `Qt <http://qt.io/>`_). Currently the **Qt5** is the main development part. Qt6 just kicked in, but is not widely available yet.
+
+Each of the following sections focusing on the installation of ``musrfit`` on the different operating systems will also give a brief introduction on the installation of the requirements before the actual musrfit installation is described.   
+  
+.. index:: os-restrictions
+
+OS Restrictions 
+---------------
+
+Before the installation procedure will be described, please note the following restrictions:
+
+**GNU/Linux**
+  No serious problems are currently known. Tested distributions: `RHEL <https://www.redhat.com/de/technologies/linux-platforms/enterprise-linux>`_, `Fedora <https://getfedora.org/>`_,
+  `Debian <https://www.debian.org/>`_, `Ubuntu <https://www.ubuntu.com/>`_, `Mint <https://linuxmint.com/>`_, `openSUSE <https://en.opensuse.org/Main_Page>`_, 
+  `manjaro <https://de.manjaro.org/>`_, and `antergos <https://antergos.com/>`_.
+**Mac OS X/macOS**
+  No serious problems are currently known for macOS ≥ 10.6.
+**MS Windows**
+  Native *MS Windows* support is currently not available. Potential ways to get ``musrfit`` running are:
+  
+  * via installation of Linux via the Microsoft App store for Windows 10.
+  * via installation of the virtual machine on which you install Linux (probably the easiest for most Windows users).
+  * via `cygwin`_. 
+  
+.. _cygwin: https://www.cygwin.com/  
+  
+.. index:: gnu-linux
+.. _gnu-linux:
+
+GNU/Linux
+---------
+
+.. index:: gnu-linux-requirements
+.. _gnu-linux-requirements:
+
+Requirements
+++++++++++++
+
+Everything but ROOT and NeXus
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Depending on the GNU/Linux distribution chosen, the above mentioned software -- except ``ROOT/CERN`` and ``NeXus`` -- should be available from 
+the distributor and could be easily installed in the form of binary packages. If done in this way there should be taken care of installing *both*, 
+the libraries and the header (dev, devel) files.
+
+On a `Red Hat Linux <https://www.redhat.com/en>`_ (or other RPM-package base Linux distributions) system the following command executed as *superuser* 
+from the shell will do the trick (never type the '$' it is the shell prompt of your system): 
+
+For **Qt4**:
+
+  .. code-block:: bash
+
+    $ yum install git cmake boost-devel gsl-devel fftw-devel libxml2-devel qt-devel qtwebkit-devel
+
+For **Qt5**:
+
+  .. code-block:: bash
+
+    $ yum install epel-release
+    $ yum install git cmake boost-devel gsl-devel fftw-devel libxml2-devel qt5-qtbase-devel qt5-qtsvg-devel
+
+Depending on your distribution **Qt4** is still the default but is likely to be replaced by **Qt5** in the very near future.   
+  
+When dealing with a distribution that uses the dpkg/apt package manager like `Debian <https://www.debian.org/>`_ or `Ubuntu <https://www.ubuntu.com/>`_ 
+the installation would look like: 
+
+For **Qt4**:
+
+  .. code-block:: bash
+  
+    $ apt-get install git cmake libboost-dev libgsl-dev libfftw3-dev libxml2-dev libqt4-dev libqtwebkit-dev
+
+For **Qt5**:
+    
+  .. code-block:: bash
+
+    $ apt-get install git cmake libboost-dev libgsl-dev libfftw3-dev libxml2-dev qt5-default qtbase5-dev libqt5svg5-dev
+    
+    
+Everyone should know best himself which is the way to install distribution software on the chosen distribution.
+
+In case the distribution does not include the required software it has to be compiled from the source files. This means either to download 
+the source code from the corresponding website, or to clone the git repo. If you need to follow this line, please check the install details of the corresponding package.
+
+For any further information on the standard installation of software, please refer to the web search engine of choice and ask for "install software on linux"...
+
+.. index:: nexus-build-linux    
+
+Installation of NeXus requirements (optional)
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+*Only* if ``musrfit`` should support reading/writing data files in the ``NeXus`` format the further required 
+software has to be set up. The required libraries and header files could either be available through the user's 
+GNU/Linux distribution or if this is not the case, the packages can be installed from the source code. In principle
+NeXus should support ``MXML``, ``HDF4``, and ``HDF5``. At the time of this writing, the ``MXML`` support in the
+NeXus project is broken, and ``HDF4`` is outdated on most platforms, yet since ISIS/RAL is still **not** up-to-date ``HDF4`` still
+needs to be dragged on (comment: if you are a ISIS user, please complain about ``HDF4``). Hence, the necessary packages to build ``NeXus`` are ``HDF4`` and ``HDF5``. This means, for a rpm-package based distro try something like:
+
+  .. code-block:: bash
+  
+    $ yum install hdf-devel hdf5-devel
+    
+and on a deb-package based distro try something like:
+
+  .. code-block:: bash
+  
+    $ apt-get install libhdf4-dev libhdf5-dev
+
+**Only NeXus Version ≥ 4.4 is support!**  
+
+Even though there might exist binary packages for the ``NeXus`` library, it is best to build and 
+install it directly from the source code which can be found `here <https://github.com/nexusformat/code>`_. 
+
+A brief instruction how to get ``NeXus`` compiled from source (lines starting with '#' are comments *only*): 
+
+.. code-block:: bash
+
+  $ cd Downloads
+  $ # create a directory for the NeXus source code
+  $ mkdir nexus
+  $ cd nexus
+  $ # get the source code from the master repository
+  $ git clone https://github.com/nexusformat/code.git
+  $ # next we will build NeXus out-of-source
+  $ mkdir build
+  $ cd build
+  $ cmake -DENABLE_HDF5=1 -DENABLE_HDF4=1 -DENABLE_MXML=0 ../code
+  $ cmake --build ./ --clean-first
+  $ # make install needs either to be carried out as root or sudo depending on your linux flavour.
+  $ sudo make install
+
+.. index:: root-build-linux    
+
+ROOT
+^^^^
+
+The ROOT framework may or may not be part of the GNU/Linux distribution. Some distributions are packing ROOT in a 
+manner incompatible with the way it is needed by ``musrfit``, though the situation is improving. If you are 
+experienced enough you can try the packed ROOT version. Often ROOT is split in many sub-packages. Install the 
+necessary ones (guess from the description below). **One Warning:** if the ROOT packages are upgraded after a 
+yum update (apt-get update; apt-get upgrade) you might need to recompile ``musrfit``. *If you are not sure about 
+all this: install ROOT from source*. Before installing ROOT from source you will need to install some additional header packages. 
+
+For RPM based systems (RedHat, Fedora, *etc*) this will likely to be ``libX11-devel``, ``libXft-devel``, ``libXpm-devel``, and ``libXext-devel``: 
+
+.. code-block:: bash
+
+  $ yum install libX11-devel libXft-devel libXpm-devel libXext-devel
+  
+For a dpkg/apt based system (Debian, Ubuntu, *etc*) this will likely to be ``libx11-dev``, ``libxft-dev``, ``libxpm-dev``, and ``libxext-dev``:   
+
+.. code-block:: bash
+
+  $ apt-get install libx11-dev libxft-dev libxpm-dev libxext-dev
+
+Also make sure that you have installed all required packages listed under :ref:`Required Software <gnu-linux-requirements>` (*e.g.* fftw, gsl, *etc*).   
+  
+In the following it is assumed that ``ROOT`` shall be installed under ``$HOME/Apps``. If you want to install 
+it somewhere else, just systematically replace the related terms of the following description. For the 
+following list of commands the '$' will be given, the command prompt. Do not enter it! Also some comments will 
+be added starting with a '#' which can be omitted. They are only there to explain what is going on.
+
+.. code-block:: bash
+
+  $ cd $HOME
+  $ # creat the Apps directory if not already present
+  $ mkdir Apps
+  $ cd Apps
+  $ git clone http://github.com/root-project/root.git
+  $ cd root
+  $ git tag -l
+  $ # git tag -l will list all available tags. In the next command choose the tag v6-16-00 
+  $ # or the latest official release number
+  $ git checkout -b v6-16-00 v6-16-00
+  $ # now ROOT is ready to be configured. Below you will find the minimal ROOT configuration needed.
+  $ # since we are using cmake build now, first we will need to create the build directory.
+  $ mkdir root_build
+  $ cd root_build
+  $ cmake ../ -Dgminimal=ON -Dasimage=ON -Dmathmore=On -Dminuit2=ON -Dxml=ON -DCMAKE_INSTALL_PREFIX=../root_exec
+  $ # next will be the make called via cmake. If running on a multicore CPU you can speed up tremendously by 
+  $ # calling it with the option -j <number>, where <number> is the number of threads which you want to give,
+  $ # e.g. cmake --build ./ --clean-first -- -j8
+  $ cmake --build ./ --clean-first
+  $ # as a last step of the ROOT build process we need to install it
+  $ make install
+
+What is still missing is that the system should be told where to find the ``ROOT`` installation, therefore the following is suggested:   
+
+* As superuser create a file ``/etc/ld.so.conf.d/cern-root.conf`` where the path to the lib directory of ``ROOT`` is 
+  added and call ``/sbin/ldconfig`` afterwards. In the example mentioned above one way of doing this is 
+  (``<home>`` has to be the path to your home, *e.g.* ``/home/luke_skywalker``): 
+
+  .. code-block:: bash
+  
+    $ echo "<home>/Apps/root/root_exec/lib" >> /etc/ld.so.conf.d/cern-root.conf
+    $ /sbin/ldconfig
+
+* Additionally, as normal user one should append the following lines to the ``~/.bashrc`` and/or ``~/.bash_profile``
+  (``~./profile`` on Debian like systems, and then either restart the shell or call the same commands once more from 
+  the shell) in order to change some path-setting environment variables:    
+  
+  .. code-block:: bash
+  
+    $ export ROOTSYS=$HOME/Apps/root/root_exec
+    $ export PATH=$ROOTSYS/bin:$PATH
+    
+If an update of ROOT is needed, simple do the following:
+
+.. code-block:: bash
+
+  $ cd $HOME/Apps/root
+  $ git pull
+  $ cd root_build
+  $ cmake --build ./ --clean-first
+    
+.. index:: musrfit-build-linux    
+
+musrfit
++++++++
+
+When all required software has been set up you can proceed with the ``musrfit`` installatio. First, the most 
+recent source code should be downloaded. The preferred way of doing so is to clone the ``musrfit`` repository via git. 
+Assuming the code should be located in ``$HOME/Apps`` this is achieved most easily calling from the terminal 
+
+.. code-block:: bash
+
+  $ cd $HOME/Apps
+  $ git clone https://bitbucket.org/muonspin/musrfit.git
+  $ cd musrfit
+
+or  
+  
+.. code-block:: bash
+
+  $ cd $HOME/Apps
+  $ git clone git://gitlab.psi.ch/nemu/musrfit.git
+  $ cd musrfit
+
+.. note::  
+  
+  after cloning the ``musrfit`` repo you will automatically be on the 
+  ``root6`` branch. If you want to get legacy ROOT 5.34.xx support, you 
+  will needed to switch branches first. 
+  
+**Update:** If a local repository clone is already present (it needs to be newer than Dec. 2016), one can update it using:   
+
+.. code-block:: bash
+
+  $ cd $HOME/Apps/musrfit
+  $ git pull
+  $ cd build
+  $ xargs rm < install_manifest.txt
+  $ cmake --build ./ --clean-first
+  $ make install
+
+.. _musrfit at bitbucket: https://bitbucket.org/muonspin/musrfit/downloads 
+  
+As an alternative (if git is not available), the source code can also be downloaded from the following web-page: `musrfit at bitbucket`_
+  
+.. index:: musrfit-build-cmake-linux    
+
+musrfit build with cmake 
+^^^^^^^^^^^^^^^^^^^^^^^^
+
+Currently the following configuration switches for ``musrfit`` are available: 
+
+
+**-DCMAKE_INSTALL_PREFIX=<prefix-path>**
+  Specify the installation prefix, *i.e.* the place where ``musrfit`` shall be installed, *e.g.* ``$ROOTSYS`` if already defined (by default: ``/usr/local``). 
+**-Dnexus=<value>**
+  enable/disable the support of ``NeXus`` data files (requires the ``HDF4``, ``HDF5`` and ``NeXus`` libraries to be installed). 
+  <value>=1 enables ``NeXus``, <value>=0 disables ``NeXus``. The default setting, *i.e.* the switch is not provided is ``NeXus`` support is disabled. 
+**-DASlibs=<value>**
+  enable/disable the ``ASlibs``. <value>=1 enables the ``ASlibs``, <value>=0 disables the ``ASlibs``. The default setting, *i.e.* the 
+  switch is not provided is ``ASlibs`` support is disabled. For details see Documentation of :ref:`user libs <user-libs>`. 
+**-DBMWlibs=<value>**
+  enable/disable the ``BMWlibs``. <value>=1 enables the ``BMWlibs``, <value>=0 disables the ``BMWlibs``. The default setting, *i.e.* the 
+  switch is not provided is ``BMWlibs`` support is disabled. For details see Documentation of :ref:`user libs <user-libs>`.  
+**-DBNMRlibs=<value>**
+  enable/disable the ``BNMRlibs``. <value>=1 enables the ``BNMRlibs``, <value>=0 disables the ``BNMRlibs``. The default setting, 
+  *i.e.* the switch is not provided is ``BNMRlibs`` support is disabled. 
+**-Dqt_based_tools=<value>**
+  Will try to get ``musredit``, ``musrWiz``, ``musrStep``, and ``mupp`` installed, if ``Qt`` is found. 
+  By default this is enabled. Again <value>=0 means disabled, <value>=1 enabled. 
+**-Dqt_version=<value>**
+  Allows to specify which ``Qt`` version shall be tried. <value> can take the values: ``AUTO, 3, 4, 5, 6``. 
+  If the value is set to ``AUTO``, this highest installed version is chosen, otherwise the specified version is used. 
+**-Dtry_OpenMP=<value>**
+  Will check if ``OpenMP`` support is possible, and if yes use it. The default is enabled 
+
+Normally it should not be necessary to make use of any of the options except for specifying the installation path with ``-DCMAKE_INSTALL_PREFIX``. 
+``musrfit`` build with ``cmake`` takes the ``out-of-source`` approach. Therefore a typical configuration / make / install process including 
+``NeXus`` support would look like 
+
+.. code-block:: bash
+
+  $ cd $HOME/Apps/musrfit
+  $ mkdir build
+  $ cd build
+  $ cmake ../ -DCMAKE_INSTALL_PREFIX=$ROOTSYS -Dnexus=1
+  # below it is assumed that multiple cores are present, hence the -j8 option
+  $ cmake --build ./ --clean-first -- -j8
+  $ make install
+  $ /sbin/ldconfig                                  # (as superuser)
+
+.. index:: musrfit-post-install-linux  
+  
+musrfit last step of the installation 
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+In order to finish the installation of musrfit two more things should be done: 
+
+  * Define the *MUSRFITPATH* environment variable containing the path to the ``musrfit`` executables and ``XML`` files. 
+    *E.g.* if the location of the example above is used append the following line to the ``~/.bashrc`` and 
+    ``~/.bash_profile`` (and then either restart the shell, source the file, or call the same commands once more from the shell): 
+
+    .. code-block:: bash
+    
+      export MUSRFITPATH=$ROOTSYS/bin
+      
+  * Adjust the paths where ``musrfit`` will search for data files in the installed ``musrfit_startup.xml``. For 
+    detailed information on this XML file refer to the :ref:`manual <musrfit-startup>`. 
+
+
+.. index:: musredit-install-linux    
+    
+musredit
+++++++++
+
+In the latest version of ``musrfit`` the configure script tries to determine automatically the highest available ``Qt`` version. 
+In case this is found, the editor ``musredit`` is built already together with ``musrfit``.
+
+musrgui (depreciated)
++++++++++++++++++++++
+
+If ``Qt4.6`` or higher is not available but ``Qt3`` is set up ``musrgui`` can be installed. For this please 
+follow the instructions for the ``musredit`` installation where simply every ``musredit`` occurrence has to 
+be replaced by ``musrgui``. If there are problems during the ``qmake`` step, *e.g.* 
+"uic: File generated with too old version of Qt Designer", this most probably means the ``Qt4`` version of ``qmake`` 
+is being used. In order to use the ``Qt3`` version it should be enough to specify the full path to its location 
+when calling it. Within the most GNU/Linux distributions this location will be something like ``/usr/lib/qt-3.3/bin/qmake``. 
+
+Check the installation
+++++++++++++++++++++++
+
+In order to perform a quick test for finding out if the installation has been completed successfully, a few msr files 
+together with the corresponding data files can be found in the ``musrfit`` source tree at ``doc/examples/``.
+If ``musrgui`` has been installed, just open one of the ``test-*.msr`` files in the editor and test the ``musrfit`` 
+functionalities. Otherwise, if only the terminal should be used, as an initial test for instance the following could be done: 
+
+.. code-block:: bash
+
+  $ cd $HOME/Apps/musrfit/doc/examples
+  $ musrview test-histo-ROOT-NPP.msr
+
+MS Windows
+----------
+
+.. note::
+
+  The description here is only for the very brave ones. It hasn't been tested for quite a while and therefore gives you 
+  rather a flavour of what needs to be done rather than a real instruction how to setup ``musrfit``. If you just need 
+  ``musrfit`` to work on a MS Windows platform, it is recommended to install it via a linux virtual machine!
+
+.. note::
+
+  For adventurous guys using Windows 10, there is the possibility to activate the built in Ubuntu bash-shell. It allows 
+  to install ``musrfit`` as described in the Linux section. 
+  
+.. note::
+  
+  One more advice: Please never try to install either ``ROOT`` or ``musrfit`` from or to a directory containing spaces 
+  in the absolute path or in case you do, do not wonder if some errors occur! msr files, however, might be saved in such 
+  directories like ``...\My Documents\...``
+  
+Under Windows a native installation is not supported but there is the possibility to run musrfit through `cygwin`_ 
+which has the great advantage that one gains additionally various nice UNIX tools also for other purposes.
+Please also be aware of the fact that the X server which is going to be installed with ``Cygwin`` has to be started 
+(*e.g.* by selecting it from the "Programs" folder) before any graphical application (``musrview``, ``musrgui``, etc.) is started.   
+  
+Requirements
+++++++++++++
+
+.. index:: cygwin
+
+Setting up Cygwin
+^^^^^^^^^^^^^^^^^
+For the start go to the Cygwin website, download the setup file and use it to install Cygwin 1.7 or newer. During the installation 
+process you will be asked where you want to install Cygwin and normally the default choice should just be fine. At some point you 
+will be asked which packages should be installed. Make sure that you choose at least the following (or packages with revisions close 
+to the following) in order to fulfill the ``musrfit`` requirements and be able to work with this base system: 
+
+::
+
+  a2ps, alternatives, autoconf, automake, base-cygwin, base-files, base-passwd bash, bash-completion, 
+  bc, binutils, bison, boost, boost-devel, bzip2, cmake, colorgcc, coreutils, curl, cygutils, cygwin, 
+  editrights, fftw3, findutils, flex, font-adobe-dpi100,   font-adobe-dpi75, font-alias, 
+  font-bitstream-dpi100, font-bitstream-dpi75, font-encodings, font-ibm-type1, font-sun-misc, font-util, 
+  font-xfree86-type1, fontconfig, freeglut, gawk, gcc-tools-autoconf, gcc-tools-automake, gcc4, 
+  gcc4-core, gcc4-fortran, gcc4-g++,   gccmakedep, gd, gettext, ghostscript, ghostscript-fonts-std, 
+  giflib, gmp, grep, groff, gsl, gsl-apps, gsl-devel, gv, gzip,   inputproto, jasper, jpeg, lapack, 
+  less, libboost, libbz2_1, libcharset1, libcurl4, libfftw3-devel, libfftw3_3, libgcc1, libgd-devel,
+  libgif-devel, libGL-devel, libGL1, libGLU-devel, libGLU1, libglut-devel, libglut3, libgmp-devel, 
+  libgmp3, libgomp1, libICE-devel,   libICE6, libjpeg-devel, libjpeg62, liblapack-devel, libmpfr-devel, 
+  libmpfr1, libncurses-devel, libncurses9, libOSMesa-devel,   libOSMesa7, libpng, libpng14, libpng14-devel, 
+  libreadline6, libSM-devel, libSM6, libssh2_1, libstdc++6, libstdc++6-devel,   libtiff-devel, libtiff5, 
+  libtool, libX11-devel, libX11_6, libXau-devel, libXau6, libXaw7, libxcb-devel, libxcb-xlib-devel,
+  libXcursor-devel, libXcursor1, libXdmcp-devel, libXdmcp6, libXext-devel, libXext6, libXfixes-devel, 
+  libXfixes3, libXfont-devel,   libXfont1, libXft-devel, libXft2, libXi-devel, libXi6, libxkbfile1, 
+  libxml2, libxml2-devel, libXmu-devel, libXmu6, libXpm-devel,   libXpm4, libXrender-devel, libXrender1, 
+  libXt-devel, libXt6, login, m4, make, makedepend, man, mpfr, nano, opengl, openssh, openssl, pdftk, 
+  perl, ping, pkg-config, psutils, python, qt3, qt3-bin, qt3-devel, readline, rebase, rgb, rsync, run, 
+  screen, sed, subversion,   tar, tcltk, terminfo, unzip, util-linux, vim, w32api, which, 
+  X-start-menu-icons, xauth, xextproto, xfontsel, xinit, xkbcomp,   xkeyboard-config, xkill, xlogo, 
+  xlsfonts, xorg-cf-files, xorg-scripts, xorg-server, xproto, xrdb, xrefresh, xset, xterm, zip, zlib, 
+  zlib-devel, zlib0, libQt3Support4-devel, libQtAssistantClient4-devel, libQtCore4-devel, 
+  libQtDBus4-devel, libQtDesigner4-devel,   libQtGui4-devel, libQtHelp4-devel, libQtNetwork4-devel, 
+  libQtOpenGL4-devel, libQtScript4-devel, libQtScriptTools4-devel,   libQtSql4-devel, libQtSvg4-devel, 
+  libQtTest4-devel, libQtWebKit4-devel, libQtXml4-devel, libQtXmlPatterns4-devel
+  
+After these installations already most of the required software is present and the Cygwin shell can be started now for the further steps! 
+Inside the shell the POSIX naming convention applies, therefore, paths will be given with separating "/" instead of "\" in DOS. The file 
+structure accessible through this shell can also be accessed through the Windows Explorer — just go to the directory which you specified 
+as "cygwin root" during the installation: this is the equivalent to "/" in the shell. By default, the different hard drives or network shares 
+like ``C:\`` can be found at ``/cygdrive/c/`` in the shell — the cygdrive prefix can in principle also be changed but for now we stick to the default.   
+
+Since later on the boost header files should be used and in the standard Cygwin installation these are found at a version specific location, 
+the later handling will be easier if a symbolic link to these files is created now in the terminal (in case it had not been present before): 
+
+.. code-block:: bash
+
+  $ ln -sf /usr/include/boost-x_yy_z/boost /usr/include/boost
+
+where ``x_yy_z`` has to be substituted by the correct version number, *e.g.* ``1_33_1``.   
+  
+Everything but ROOT and NeXus
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. index:: nexus-build-windows    
+
+Installation of NeXus requirements (optional)
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Only if ``musrfit`` should support reading data files in the ``NeXus`` format the further required software has 
+to be set up. Under ``Cygwin`` of all the required libraries only ``HDF5`` is available. The packages ``hdf5`` and 
+``libhdf5-devel`` can be installed through the ``Cygwin`` setup. One should also make sure that ``bison``, ``flex`` 
+and a package containing ``/usr/lib/librpc.a`` (*e.g.* ``sunrpc = 4.0-3``, but *not* ``sunrpc = 4.0-4``) are installed. 
+
+**Only NeXus Version ≥ 4.4 is support!**  
+
+.. code-block:: bash
+
+  $ cd
+  $ mkdir nexus
+  $ cd nexus
+  $ curl http://www.hdfgroup.org/ftp/lib-external/jpeg/src/jpegsrc.v6b.tar.gz -G | tar xz
+  $ cd jpeg-6b
+  $ ./configure --prefix=/usr/local --enable-static
+  $ make
+  $ make install
+  $ cd ..
+  $ # create a directory for the NeXus source code
+  $ mkdir nexus
+  $ cd nexus
+  $ # get the source code from the master repository
+  $ git clone https://github.com/nexusformat/code.git
+  $ # next we will build NeXus out-of-source
+  $ mkdir build
+  $ cd build
+  $ cmake -DENABLE_HDF5=1 -DENABLE_HDF4=1 -DENABLE_MXML=0 ../code
+  $ make
+  $ make install
+
+  
+.. index:: root-build-windows
+
+ROOT
+^^^^
+
+In order to install the ``ROOT`` system, there are two possibilities: 
+
+* Download the precompiled Cygwin GCC 4.3 (or newer) package of the most recent ``ROOT`` version 
+  from the `web page`_ and unpack it in a ``Cygwin`` shell 
+  (in order to get the line endings correctly) at the final location. Suppose the package has been 
+  downloaded to ``C:\`` and the ``ROOT`` tree should be in ``C:\root``, this is achieved by:
+  
+  .. _web page: https://root.cern.ch/downloading-root
+    
+  .. code-block:: bash
+    
+    $ cd /cygdrive/c
+    $ tar xzf root_v5.xx.yy.win32gcc-gcc-4.3.tar.gz
+
+* If due to some reason there was no precompiled Cygwin GCC 4.3 package available or ``ROOT`` should 
+  be built from source, one has to visit the `web page`_, 
+  download the 'complete source tree for all systems' and save it for instance in ``C:\``.
+  Then go to the Cygwin shell and unpack this source tree, configure it (here using the minimal set of options) 
+  and compile it as follows right below:
+    
+  .. code-block:: bash
+    
+    $ cd /cygdrive/c
+    $ tar xzf root_v5.xx.yy.source.tar.gz
+    $ cd root
+    $ ./configure win32gcc --gminimal --enable-asimage --enable-mathmore --enable-minuit2 --enable-xml
+    $ make
+      
+* In order to finalize the ``ROOT`` installation and to prepare already the installation of ``musrfit`` and 
+  ``musredit`` this is a good time for setting necessary environment variables for the use in Cygwin. For 
+  accomplishing that put the following lines at the end of the ``/home/Username/.bashrc`` (``C:\cygwin\home\Username\.bashrc`` 
+  for the user ``Username`` and the ``cygwin root`` at ``C:\cygwin``):
+
+  .. code-block:: bash
+    
+    export DISPLAY=:0.0
+    export QTDIR=/usr/lib/qt4
+    export ROOTSYS=/cygdrive/c/root
+    export PATH=$ROOTSYS/bin:$QTDIR/bin:/usr/i686-pc-cygwin/bin:$PATH
+    export MUSRFITPATH=$ROOTSYS/bin
+      
+Afterwards close the Cygwin shell and reopen it again for the installation of ``musrfit``.       
+  
+.. index:: musrfit-build-windows  
+  
+musrfit
++++++++
+
+First, the most recent source code should be downloaded. The preferred way of doing so is to clone the ``musrfit`` 
+repository via git. Assuming the code should be located in ``~/musrfit`` this is achieved most easily calling from the terminal 
+
+.. code-block:: bash
+
+  $ cd
+  $ git clone https://bitbucket.org/muonspin/musrfit.git 
+
+or  
+
+.. code-block:: bash
+
+  $ cd
+  $ git clone git://gitlab.psi.ch/nemu/musrfit.git
+  
+If the repository had been checked out already before, one can update the local copy using: 
+
+.. code-block:: bash
+
+  $ cd musrfit
+  $ git pull
+
+As an alternative (if git is not available), the source code can also be downloaded from the following 
+web-page: `musrfit at bitbucket`_.
+   
+.. index:: musrfit-build-cmake-windows  
+
+musrfit build with cmake 
+^^^^^^^^^^^^^^^^^^^^^^^^
+
+Currently the following configuration switches for ``musrfit`` are available:
+
+**-DCMAKE_INSTALL_PREFIX=<prefix-path>**
+  Specify the installation prefix, *i.e.* the place where ``musrfit`` shall be installed, *e.g.* ``$ROOTSYS`` if already defined (by default: ``/usr/local``) 
+**-Dnexus=<value>**
+  enable/disable the support of ``NeXus`` data files (requires the ``HDF4``, ``HDF5`` and ``NeXus`` libraries to be installed). 
+  <value>=1 enables ``NeXus``, <value>=0 disables ``NeXus``. The default setting, *i.e.* the switch is not provided is ``NeXus`` support is disabled. 
+**-DASlibs=<value>**
+  enable/disable the ``ASlibs``. <value>=1 enables the ``ASlibs``, <value>=0 disables the ``ASlibs``. 
+  The default setting, *i.e.* the switch is not provided is ``ASlibs`` support is *disabled*. For details see Documentation of :ref:`user libs <user-libs>`. 
+**-DBMWlibs=<value>**
+  enable/disable the ``BMWlibs``. <value>=1 enables the ``BMWlibs``, <value>=0 disables the ``BMWlibs``. 
+  The default setting, *i.e.* the switch is not provided is ``BMWlibs`` support is *disabled*. For details see Documentation of :ref:`user libs <user-libs>`. 
+**-DBNMRlibs=<value>**
+  enable/disable the ``BNMRlibs``. <value>=1 enables the ``BNMRlibs``, <value>=0 disables the ``BNMRlibs``. 
+  The default setting, *i.e.* the switch is not provided is ``BNMRlibs`` support is *disabled*. 
+**-Dqt_based_tools=<value>**
+  Will try to get ``musredit``, ``musrWiz``, ``musrStep``, and ``mupp`` installed, if ``Qt`` is found. 
+  By default this is *enabled*. Again <value>=0 means disabled, <value>=1 enabled. 
+**-Dqt_version=<value>**
+  Allows to specify which ``Qt`` version shall be tried. <value> can take the values: ``AUTO, 3, 4, 5, 6``. 
+  If the value is set to ``AUTO``, this highest installed version is chosen, otherwise the specified version is used. 
+**-Dtry_OpenMP=<value>**
+  Will check if ``OpenMP`` support is possible, and if yes use it. The default is *enabled*. 
+
+Normally it should not be necessary to make use of any of the options except for specifying the installation path with 
+``-DCMAKE_INSTALL_PREFIX``. ``musrfit`` build with ``cmake`` takes the out-of-source approach. Therefore a typical 
+configuration / make / install process including ``NeXus`` support would look like
+
+.. code-block:: bash
+
+  $ cd $HOME/Apps/musrfit
+  $ mkdir build
+  $ cd build
+  $ cmake ../ -DCMAKE_INSTALL_PREFIX=$ROOTSYS -Dnexus=1
+  # below it is assumed that multiple cores are present, hence the -j8 option
+  $ cmake --build ./ --clean-first -- -j8
+  $ make install
+  $ /sbin/ldconfig                                  # (as superuser)
+
+
+.. index:: musredit-install-windows
+
+musredit
+++++++++
+
+In the latest version of ``musrfit`` the configure script tries to determine automatically if 
+Qt4.5 or higher is set up on the machine. In case this is found, the editor ``musredit`` is built 
+readily with ``musrfit``. If not, try the following:
+
+.. code-block:: bash
+
+  $ cd src/musredit
+  $ qmake-qt4 musredit.pro
+  
+If everything went fine ``musredit`` can be compiled and installed:  
+
+.. code-block:: bash
+
+  $ make
+  $ make install
+
+In case one likes to get the editor started just with starting the X server from the Windows start 
+menu the file ``~/.startxwinrc`` with the following contents can be created:  
+  
+.. code-block:: bash
+
+  #!/bin/sh
+
+  export DISPLAY=:0.0
+  export QTDIR=/usr/lib/qt4
+  export ROOTSYS=/cygdrive/c/root
+  export PATH=$ROOTSYS/bin:$QTDIR/bin:/usr/i686-pc-cygwin/bin:$PATH
+  export MUSRFITPATH=$ROOTSYS/bin
+
+  musredit &
+  
+musrgui (depreciated)
++++++++++++++++++++++
+
+If ``Qt4.5`` or higher is not available but ``Qt3`` is set up ``musrgui`` can be installed. For this 
+please follow the instructions for the ``musredit`` installation where simply every ``musredit`` occurrence 
+has to be replaced by ``musrgui``, and ``qt4`` is replaced by ``qt3``. 
+
+Check the installation
+++++++++++++++++++++++
+
+In order to perform a quick test for finding out if the installation has been completed successfully, 
+a few msr files together with the corresponding data files can be found in the ``musrfit`` source tree 
+at doc/examples/.
+If ``musrgui`` has been installed, just open one of the ``test-*.msr`` files in the editor and test 
+the ``musrfit`` functionalities. Otherwise, if only the terminal should be used, as an initial test 
+for instance the following could be done:
+
+.. code-block:: bash
+
+  $ cd doc/examples
+  $ musrview test-histo-ROOT-NPP.msr
+
+Potential Problems
+++++++++++++++++++
+
+It might be that especially when running on Windows 7 ``musredit`` and ``musrgui`` produce errors like a 
+"STATUS_ACCESS_VIOLATION". In this case, try to do the following: Close all Cygwin programs (including 
+the terminals and X server) and run from a Windows command prompt (cmd)
+
+.. code-block:: bash
+
+  $ C:\cygwin\bin\ash.exe /bin/rebaseall
+  
+If this does not resolve the problem, try to change the compatibility settings of ``C:\cygwin\bin\sh.exe`` 
+and ``C:\cygwin\bin\bash.exe`` so that they are executed with administrator privileges.   
+
+Mac OS X / macOS
+----------------
+
+.. note::
+
+  macOS 11 alias **Big Sur**: ``musrfit`` is ready for **Big Sur** on Intel based macs. The ``DKS`` version of   
+  ``musrfit`` for macOS **Big Sur** is ready as well.
+
+.. note::
+
+  macOS Catalina is slightly different in some aspects, so if it happens that you have it installed, please
+  first check :ref:`note-on-catalina` before you proceed.
+
+.. _MacPorts: https://www.macports.org/
+.. _Fink: http://www.finkproject.org/
+
+With Mac OS X / macOS the situation is up to some extent similar like on MS Windows but still different since 
+Mac OS X is a UNIX system. The similarity is that also on OS X a helping framework — either `MacPorts`_  
+or `Fink`_ —  which provides open-source software is employed to fulfill the basic software requirements of ``musrfit``. 
+In the following, both possibilities (using MacPorts or Fink) are described but it is emphasized here that 
+it should be followed only *one* of the possible routes . 
+
+.. warning::
+  
+  If you decide to upgrade your macOS, e.g. from ``High Sierra`` to ``Mojave``, you will typically need to 
+  unistall ``musrfit``, ``ROOT``, and `MacPorts`_ / `Fink`_ first, do the upgrade of the macOS and start the 
+  installation of `MacPorts`_ / `Fink`_ , ``ROOT``, and ``musrfit`` from scratch!
+
+.. index:: macports
+
+Requirements (MacPorts) 
++++++++++++++++++++++++
+
+Before proceeding with the usage of the ``MacPorts`` system first a few useful tools provided by Apple together 
+with OS X (on the installation DVD/CDs) should be installed: 
+
+ **Xcode**
+   Useful developer tools including for instance the GNU compiler collection. It can be installed via the Apple App store. 
+   Starting from ``XCode`` ≥ 4.3 the command line tools need to be installed manually. The necessary command line tools 
+   can be installed via the following commands entered in the terminal
+   
+   .. code-block:: bash
+   
+     $ xcode-select --install
+     $ sudo xcodebuild -license
+     
+**X11**
+  The X-window system is automatically installed on 10.5 Leopard and 10.6 Snow Leopard. For some other versions you also 
+  will need to install `XQuartz <http://xquartz.macosforge.org/trac>`_. If ``ROOT`` runs without ``XQuartz`` *do not*
+  install it.
+  
+After installing the ``Xcode`` tools go to the `MacPorts install page <http://www.macports.org/install.php>`_, download 
+the installer for your system and follow the installation instructions on the page. By default the MacPorts system will be 
+installed in ``/opt/local``. To be sure that the newest version of the software is used a MacPorts upgrade should be performed 
+by typing in a terminal:   
+
+.. code-block:: bash
+
+  $ sudo port -v selfupdate
+
+**Remark:** MacPorts uses `rsync <http://rsync.samba.org/>`_ in order to synchronize the list of available packages. It frequently 
+happens that this service is blocked by firewalls. In this case it should be possible to download a local version of the package 
+repository and do the synchronization. If this step becomes necessary (*and only then*) it can be done in the following way:   
+
+#. Get a local version of the repository:
+
+   .. code-block:: bash
+      
+      $ svn co http://svn.macports.org/repository/macports/trunk/dports ~/dports
+      
+#. Edit the file ``/opt/local/etc/macports/sources.conf``: At the end of the file, comment the line beginning with ``rsync://`` and 
+   add a new line pointing to your local copy, *e.g.*
+   
+   .. code-block:: bash
+   
+     file:///Users/username/dports
+     
+#. Synchronize the packages:     
+
+   .. code-block:: bash
+   
+      $ sudo port -v -d sync
+      
+Then the MacPorts system should be set up and can be used to install additional software.      
+
+The installation of the software mentioned above is then done in the terminal:
+
+.. code-block:: bash
+
+  $ sudo port -v install pkgconfig autoconf automake libtool cmake fftw-3 fftw-3-single gsl boost libxml2 qt5 qt5-qtsvg
+  
+With ``Qt5``, ``musredit`` will be installed. If it happens that you used ``musrgui`` in the past, 
+please change over to ``musredit`` since there will be no further development for ``musrgui`` anymore!   
+      
+
+.. index:: nexus-build-macports
+
+Installation of NeXus requirements (optional) 
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+*Only* if ``musrfit`` should support reading data files in the ``NeXus`` format the further required packages are set up: 
+
+.. code-block:: bash
+
+  $ sudo port -v install hdf4 hdf5
+
+**Only NeXus Version ≥ 4.4 is support!**  
+
+To get things compiled do:
+
+.. code-block:: bash
+
+  $ # get and install NeXus
+  $ cd $HOME/Applications
+  $ # get the source code from the master repository
+  $ git clone https://github.com/nexusformat/code.git nexus/code
+  $ # next we will build NeXus out-of-source
+  $ cd nexus
+  $ mkdir build
+  $ cd build
+  $ cmake -DENABLE_HDF5=1 -DENABLE_HDF4=1 -DENABLE_MXML=0 ../code
+  $ make
+  $ sudo make install
+  
+
+.. index:: root-build-macports
+
+ROOT
+^^^^
+
+**The default ROOT version is based on ROOT 6.xx/yy!**
+
+ROOT installed via package installer 
+""""""""""""""""""""""""""""""""""""
+
+The lazy way to get ``ROOT`` installed is via package installer. If your macOS is directly supported 
+by the ``ROOT`` people you can download the package installer from the ``ROOT`` `download page <https://root.cern.ch/downloading-root>`_. 
+Choose the latest ``ROOT`` release and download you macOS version dmg-file, *e.g.* for macOS 10.13 (High Sierra) 
+it is at the time of writting ``root_v6.16.00.macosx64-10.13-clang91.dmg``. After the installation 
+``ROOT`` will be installed under ``/Application`` as owner root. In order to ease your life for the 
+steps to follow and assuming you are the only guy working on your Mac, you could change the owner and group of the ``ROOT`` directory: 
+
+.. code-block:: bash
+
+  $ cd /Applications
+  $ sudo chown -R <username> root_v6.16.00
+  $ sudo chgrp -R staff root_v6.16.00
+  $ sudo ln -s root_v6.16.00 root
+
+ROOT installed from source 
+""""""""""""""""""""""""""
+
+The best way to get ``ROOT`` exactly the way needed for ``musrfit`` is to install it from source. 
+Before describing it, please make sure that you have installed all required packages listed under 
+:ref:`Requested Software <supported-operating-systems>` (*e.g.* ``fftw``, ``gsl``, etc). 
+
+For the following it is assumed that ``ROOT`` shall be installed under ``$HOME/Applications``. If you want 
+to install it somewhere else, just systematically replace the related terms of the following description. 
+For the following list of commands the '$' will be given, the command prompt. Do not enter it! Also some 
+comments will be added starting with a '#' which can be omitted. They are only there to explain what is going on. 
+
+.. code-block:: bash
+
+  $ cd $HOME/Applications
+  $ git clone http://github.com/root-project/root.git
+  $ cd root
+  $ git tag -l
+  $ # git tag -l will list all available tags. In the next command choose the tag v6-10-xx
+  $ # where xx is the highest listed number, e.g. v6-16-00
+  $ git checkout -b v6-16-00 v6-16-00
+  $ # now ROOT is ready to be configured. Below you will find the minimal ROOT configuration needed.
+  $ # We will use the cmake out-of-source approach here.
+  $ mkdir root_build
+  $ cd root_build
+  $ cmake ../ -Dgminimal=ON -Dasimage=ON -Dmathmore=ON -Dminuit2=ON -Dxml=ON -DCMAKE_INSTALL_PREFIX=$HOME/Applications/root/root_exec
+  $ # next will be the make. If running on a multicore CPU you can speed up tremendously by calling
+  $ # make with the option -j <number>, where <number> is the number of threads which you want to give,
+  $ # e.g. make -j8
+  $ cmake --build ./ --clean-first -- -j8
+  $ # make will take quite a while
+  $ make install
+
+For further details see `Installing ROOT from Source <https://root.cern.ch/building-root>`_.  
+  
+Setting up Environment Variables for ROOT and musrfit
+"""""""""""""""""""""""""""""""""""""""""""""""""""""
+
+Since Apple in its wisdom decided that programs started from a shell are treated differently than Apps if it is coming to 
+system variables, we need to work harder compared to a Linux system. 
+
+**For Mac OS X < 10.8:**
+
+In order to finalize the ``ROOT`` installation and to prepare already the installation of ``musrfit`` and ``musredit`` 
+this is a good time for setting necessary environment variables for the use in Mac OS X. Here it assumed that you 
+installed ``ROOT`` from source. If you downloaded the binary package, you will need to adopt the paths accordingly. 
+Put the following lines (without the comments in parentheses and with the paths adjusted to your local installation) 
+into the file ``~/.MacOSX/environment.plist`` and re-login:
+
+.. code-block:: xml
+
+  <?xml version="1.0" encoding="UTF-8"?>
+  <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+  <plist version="1.0">
+  <dict>
+        <key>MUSRFITPATH</key>
+        <string>$HOME/Applications/root/root_exec/bin</string> (where to find the musrfit executables)
+        <key>QTDIR</key>
+        <string>/opt/local/lib/qt3mac</string>                 (where to find Qt3 (for musrgui) or Qt4 (for musredit))
+        <key>ROOTSYS</key>
+        <string>$HOME/Applications/root/root_exec</string>     (where to find the ROOT system)
+  </dict>
+  </plist>
+
+**For Mac OS X ≥ 10.8:**  
+
+One needs to add some system variables in ``~/.profile``: 
+
+.. code-block:: bash
+
+  export ROOTSYS=$HOME/Applications/root/root_exec
+  export MUSRFITPATH=$ROOTSYS/bin
+  export PATH=$ROOTSYS/bin:$QTDIR/bin:$PATH
+  export LD_LIBRARY_PATH=$ROOTSYS/lib:$LD_LIBRARY_PATH
+
+  launchctl setenv ROOTSYS $ROOTSYS
+  launchctl setenv MUSRFITPATH $MUSRFITPATH
+  launchctl setenv PATH $PATH
+  launchctl setenv LD_LIBRARY_PATH $LD_LIBRARY_PATH
+
+After this you will need to "execute" ``.profile`` before proceeding:   
+
+.. code-block:: bash
+
+  $ source $HOME/.profile
+
+.. _note-on-catalina:
+
+Notes on macOS Catalina
+^^^^^^^^^^^^^^^^^^^^^^^
+
+Apple introduced a couple of changes on macOS Catalina compared to its previous versions of macOS which might
+be a stumble block. Here I **very** briefly try to add some notes in order to get a smooth installation for 
+``musrfit``.
+
+1. You should switch from the bash to the zsh. Please check, e.g. `Moving to zsh <https://scriptingosx.com/2019/06/moving-to-zsh/>`_. 
+2. Instead of ``.profile`` you will need to setup a ``.zprofile``.
+3. macports: currently there is a little nuisance with the ``fftw-3`` port. My bug report is already out since a while 
+   but no proper fix is available. The workaround to get it right is to install the port from source which is done by
+
+   .. code-block:: bash
+
+     $ port -s install fftw-3 
+
+   If you fail to do so, you might trigger a crash in the Fourier transform for 2^N, N=12.
+
+.. index:: fink
+
+Requirements (Fink) 
++++++++++++++++++++
+
+Before proceeding with the usage of the `Fink`_ system first a few useful tools provided by Apple together with OS X (on the installation DVD/CDs) should be installed:
+
+**Xcode**
+   Useful developer tools including for instance the GNU compiler collection. It can be installed via the Apple App store. 
+   Starting from ``XCode`` ≥ 4.3 the command line tools need to be installed manually. The necessary command line tools 
+   can be installed via the following commands entered in the terminal
+   
+   .. code-block:: bash
+   
+     $ xcode-select --install
+     $ sudo xcodebuild -license
+     
+**X11**
+  The X-window system is automatically installed on 10.5 Leopard and 10.6 Snow Leopard. For some other versions you also 
+  will need to install `XQuartz <http://xquartz.macosforge.org/trac>`_. If ``ROOT`` runs without ``XQuartz`` *do not*
+  install it.
+
+After installing the ``Xcode`` tools go to the `Fink download page <http://www.finkproject.org/download/index.php?phpLang=en>`_, 
+download the installer for your system and follow the installation instructions on the page. By default the Fink system is 
+installed under ``/sw``. After the basic setup make sure that in ``/sw/etc/fink.conf`` the line starting with Trees reads like:   
+
+::
+
+  Trees: local/main stable/main stable/crypto unstable/main
+  
+After applying the changes above to the configuration file, the Fink core system should be upgraded to its newest version by typing in a terminal:   
+
+.. code-block:: bash
+
+  $ sudo fink selfupdate
+  
+Then the Fink system should be set up and can be used to install additional software.
+The Fink installer package also contains a graphical user interface called FinkCommander and it is 
+suggested to use that for installing the following packages (or packages with revisions close to the following) — it 
+is necessary to compile a few packages from source since no binary packages are available, however, this is done 
+automatically by the FinkCommander after you have chosen the software packages for installation:   
+
+::
+  
+  autoconf automake cmake boost1.63-nopython boost1.63.nopython-shlibs fftw3 fftw3-shlibs gsl gsl-shlibs 
+  libtool2 libtool2-shlibs libxml2 libxml2-bin libxml2-shlibs pkgconfig qt5-mac-qtbase qt5-mac-qtbase-dev-tools 
+  qt5-mac-qtsvg qt5-mac-qtsvg-shlibs 
+  
+Under OS X 10.6 Snow Leopard it will *not* be possible to install ``qt3mac`` since the system is by default a 64-bit 
+system and the old ``qt3-mac`` depends on software which is only available for 32-bit systems. It is suggested to 
+install ``qt5-mac`` instead and use ``musredit``.  
+
+Also, due to some not fulfilled dependencies, it might not be possible to install FFTW3 through Fink. In this case 
+(*and ONLY in THIS case*) simply download the FFTW3 source code from its download page and install it from a terminal 
+using the following commands (for the FFTW version 3.x.y): 
+
+.. code-block:: bash
+
+  $ tar xz fftw-3.x.y
+  $ cd fftw-3.x.y
+  $ ./configure --enable-single --enable-shared --enable-threads --prefix=/usr/local
+  $ make
+  $ sudo make install
+  
+Since later on the boost header files should be used and in the standard Fink installation these are found at a version 
+specific location, the later handling will be easier if a symbolic link to this files is created now in the terminal 
+(if it did not exist earlier), *e.g.*:   
+
+.. code-block:: bash
+
+  $ ln -sf /sw/include/boost-x_yy_z/boost /sw/include/boost
+  
+where ``x_yy_z`` has to be substituted by the correct version number, *e.g.* ``1_63_0``.   
+
+.. index:: nexus-build-fink
+
+Installation of NeXus requirements (optional) 
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+*Only* if ``musrfit`` should support reading data files in the ``NeXus`` format the further required 
+packages can be installed through Fink (check for the most recent versions): 
+
+::
+
+  libjpeg hdf hdf5-cpp11 hdf5-cpp11-shlibs
+  
+Unfortunately, the ``NeXus`` libraries have to be compiled and installed directly from 
+the source code. Given the respective version number 4.4 (which are subject to change with time) 
+this can be achieved for example by:   
+
+.. code-block:: bash
+
+  $ # build NeXus
+  $ cd ..
+  $ git clone https://github.com/nexusformat/code.git nexus/code
+  $ cd nexus
+  $ # build NeXus out-of-source
+  $ mkdir build
+  $ cd build
+  $ cmake ../code -DENABLE_HDF5=1 -DENABLE_HDF4=1 -DENABLE_MXML=0
+  $ cmake --build ./ --clean-first -- -j8
+  $ sudo make install
+
+    
+.. index:: root-build-fink
+
+ROOT
+^^^^
+
+**The default ROOT version is based on ROOT 6.xx/yy!**
+
+ROOT installed via package installer 
+""""""""""""""""""""""""""""""""""""
+
+The lazy way to get ``ROOT`` installed is via package installer. If your macOS is directly supported 
+by the ``ROOT`` people you can download the package installer from the ``ROOT`` `download page <https://root.cern.ch/downloading-root>`_. 
+Choose the latest ``ROOT`` release and download you macOS version dmg-file, *e.g.* for macOS 10.13 (High Sierra) 
+it is at the time of writting ``root_v6.16.00.macosx64-10.13-clang91.dmg``. After the installation 
+``ROOT`` will be installed under ``/Application`` as owner root. In order to ease your life for the 
+steps to follow and assuming you are the only guy working on your Mac, you could change the owner and group of the ``ROOT`` directory: 
+
+.. code-block:: bash
+
+  $ cd /Applications
+  $ sudo chown -R <username> root_v6.16.00
+  $ sudo chgrp -R staff root_v6.16.00
+  $ sudo ln -s root_v6.16.00 root
+  
+ROOT installed from source
+""""""""""""""""""""""""""
+
+The best way to get ``ROOT`` exactly the way needed for ``musrfit`` is to install it from source. 
+Before describing it, please make sure that you have installed all required packages listed under 
+:ref:`Requested Software <supported-operating-systems>` (*e.g.* ``fftw``, ``gsl``, etc). 
+
+For the following it is assumed that ``ROOT`` shall be installed under ``$HOME/Applications``. If you want 
+to install it somewhere else, just systematically replace the related terms of the following description. 
+For the following list of commands the '$' will be given, the command prompt. Do not enter it! Also some 
+comments will be added starting with a '#' which can be omitted. They are only there to explain what is going on. 
+
+.. code-block:: bash
+
+  $ cd $HOME/Applications
+  $ git clone http://github.com/root-project/root.git
+  $ cd root
+  $ git tag -l
+  $ # git tag -l will list all available tags. In the next command choose the tag v6-10-xx
+  $ # where xx is the highest listed number, e.g. v6-16-00
+  $ git checkout -b v6-16-00 v6-16-00
+  $ # now ROOT is ready to be configured. Below you will find the minimal ROOT configuration needed.
+  $ # We will use the cmake out-of-source approach here.
+  $ mkdir root_build
+  $ cd root_build
+  $ cmake ../ -Dgminimal=ON -Dasimage=ON -Dmathmore=ON -Dminuit2=ON -Dxml=ON -DCMAKE_INSTALL_PREFIX=$HOME/Applications/root/root_exec
+  $ # next will be the make. If running on a multicore CPU you can speed up tremendously by calling
+  $ # make with the option -j <number>, where <number> is the number of threads which you want to give,
+  $ # e.g. make -j8
+  $ cmake --build ./ --clean-first -- -j8
+  $ # make will take quite a while
+  $ make install
+
+For further details see `Installing ROOT from Source <https://root.cern.ch/building-root>`_.  
+
+Setting up Environment Variables for ROOT and musrfit
+"""""""""""""""""""""""""""""""""""""""""""""""""""""
+
+Since Apple in its wisdom decided that programs started from a shell are treated differently than Apps if it is coming to 
+system variables, we need to work harder compared to a Linux system. 
+
+**For Mac OS X < 10.8:**
+
+In order to finalize the ``ROOT`` installation and to prepare already the installation of ``musrfit`` and ``musredit`` 
+this is a good time for setting necessary environment variables for the use in Mac OS X. Here it assumed that you 
+installed ``ROOT`` from source. If you downloaded the binary package, you will need to adopt the paths accordingly. 
+Put the following lines (without the comments in parentheses and with the paths adjusted to your local installation) 
+into the file ``~/.MacOSX/environment.plist`` and re-login:
+
+.. code-block:: xml
+
+  <?xml version="1.0" encoding="UTF-8"?>
+  <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+  <plist version="1.0">
+  <dict>
+        <key>MUSRFITPATH</key>
+        <string>$HOME/Applications/root/root_exec/bin</string> (where to find the musrfit executables)
+        <key>QTDIR</key>
+        <string>/opt/local/lib/qt3mac</string>                 (where to find Qt3 (for musrgui) or Qt4 (for musredit))
+        <key>ROOTSYS</key>
+        <string>$HOME/Applications/root/root_exec</string>     (where to find the ROOT system)
+  </dict>
+  </plist>
+
+**For Mac OS X ≥ 10.8:**  
+
+One needs to add some system variables in ``~/.profile``: 
+
+.. code-block:: bash
+
+  export ROOTSYS=$HOME/Applications/root/root_exec
+  export MUSRFITPATH=$ROOTSYS/bin
+  export PATH=$ROOTSYS/bin:$QTDIR/bin:$PATH
+  export LD_LIBRARY_PATH=$ROOTSYS/lib:$LD_LIBRARY_PATH
+
+  launchctl setenv ROOTSYS $ROOTSYS
+  launchctl setenv MUSRFITPATH $MUSRFITPATH
+  launchctl setenv PATH $PATH
+  launchctl setenv LD_LIBRARY_PATH $LD_LIBRARY_PATH
+
+After this you will need to "execute" ``.profile`` before proceeding:   
+
+.. code-block:: bash
+
+  $ source $HOME/.profile
+
+.. index:: musrfit-build-macos
+
+musrfit
++++++++
+
+First, the most recent source code should be downloaded. First, the most recent source code should be downloaded. 
+The preferred way of doing so is to clone the ``musrfit`` repository via git. Assuming the code should be located 
+in ``~/Applications/musrfit`` this is achieved most easily calling from the termin
+
+.. code-block:: bash
+
+  $ cd ~/Applications
+  $ git clone https://bitbucket.org/muonspin/musrfit.git 
+  $ cd musrfit
+
+or 
+
+.. code-block:: bash
+
+  $ cd ~/Applications
+  $ git clone git://gitlab.psi.ch/nemu/musrfit.git  
+  $ cd musrfit
+
+If a local repository clone is already present, one can update it using: 
+
+.. code-block:: bash
+
+  $ cd ~/Applications/musrfit
+  $ git pull
+  
+As an alternative (*if git is not available*), the source code can also be downloaded from the following 
+web-page: `musrfit at bitbucket`_.   
+   
+.. index:: musrfit-build-cmake-macos
+
+
+
+musrfit build with cmake
+^^^^^^^^^^^^^^^^^^^^^^^^
+
+Currently the following configuration switches for ``musrfit`` are available: 
+
+**-DCMAKE_INSTALL_PREFIX=<prefix-path>**
+  Specify the installation prefix, *i.e.* the place where ``musrfit`` shall be installed, *e.g.* ``$ROOTSYS`` if already defined (by default: ``/usr/local``). 
+**-Dnexus=<value>**
+  enable/disable the support of ``NeXus`` data files (requires the ``HDF4``, ``HDF5`` and ``NeXus`` libraries to be installed). 
+  <value>=1 enables ``NeXus``, <value>=0 disables ``NeXus``. The default setting, *i.e.* the switch is not provided is ``NeXus`` support is disabled. 
+**-DASlibs=<value>**
+  enable/disable the ``ASlibs``. <value>=1 enables the ``ASlibs``, <value>=0 disables the ``ASlibs``. The default setting, *i.e.* the 
+  switch is not provided is ``ASlibs`` support is disabled. For details see Documentation of :ref:`user libs <user-libs>`. 
+**-DBMWlibs=<value>**
+  enable/disable the ``BMWlibs``. <value>=1 enables the ``BMWlibs``, <value>=0 disables the ``BMWlibs``. The default setting, *i.e.* the 
+  switch is not provided is ``BMWlibs`` support is disabled. For details see Documentation of :ref:`user libs <user-libs>`.  
+**-DBNMRlibs=<value>**
+  enable/disable the ``BNMRlibs``. <value>=1 enables the ``BNMRlibs``, <value>=0 disables the ``BNMRlibs``. The default setting, 
+  *i.e.* the switch is not provided is ``BNMRlibs`` support is disabled. 
+**-Dqt_based_tools=<value>**
+  Will try to get ``musredit``, ``musrWiz``, ``musrStep``, and ``mupp`` installed, if ``Qt`` is found. 
+  By default this is enabled. Again <value>=0 means disabled, <value>=1 enabled. 
+**-Dqt_version=<value>**
+  Allows to specify which ``Qt`` version shall be tried. <value> can take the values: ``AUTO, 3, 4, 5, 6``. 
+  If the value is set to ``AUTO``, this highest installed version is chosen, otherwise the specified version is used. 
+**-Dtry_OpenMP=<value>**
+  Will check if ``OpenMP`` support is possible, and if yes use it. The default is enabled 
+
+Normally it should not be necessary to make use of any of the options except for specifying the installation path with ``-DCMAKE_INSTALL_PREFIX``. 
+``musrfit`` build with ``cmake`` takes the ``out-of-source`` approach. Therefore a typical configuration / make / install process including 
+``NeXus`` support would look like 
+
+.. code-block:: bash
+
+  $ cd $HOME/Apps/musrfit
+  $ mkdir build
+  $ cd build
+  $ cmake ../ -DCMAKE_INSTALL_PREFIX=$ROOTSYS -Dnexus=1
+  # below it is assumed that multiple cores are present, hence the -j8 option
+  $ cmake --build ./ --clean-first -- -j8
+  $ make install
+  $ /sbin/ldconfig                                  # (as superuser)
+
+  
+musrfit last step of the installation
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+In order to finish the installation of ``musrfit`` two more things should be done: 
+
+* Define the ``MUSRFITPATH`` environment variable containing the path to the ``musrfit`` executables and ``XML`` files. 
+  *E.g.* if the location of the example above is used append the following line to the ``~/.bashrc`` and ``~/.bash_profile`` 
+  (and then either restart the shell or call the same commands once more from the shell): 
+  
+.. code-block:: bash   
+
+  export MUSRFITPATH=$ROOTSYS/bin
+  
+* Adjust the paths where ``musrfit`` will search for data files in the installed ``musrfit_startup.xml``. For 
+  detailed information on this XML file refer to the :ref:`manual <musrfit-startup>`.   
+
+.. index:: musredit-build-macos
+
+musredit
+++++++++
+
+In the latest version of ``musrfit`` the configure script tries to determine automatically the highest 
+available Qt version. In case this is found, the editor ``musredit`` is built already together with ``musrfit``. 
+If not, try the following:
+
+.. code-block:: bash
+
+  $ cd $HOME/Apps/musrfit/src/musredit_qt5
+  $ # for some distributions you will need qmake-qt5 for the next command
+  $ qmake musredit.pro
+
+If everything went fine, ``musredit`` can be compiled and installed:
+
+.. code-block:: bash
+
+  $ make
+  $ make install
+
+In case one does not like the executable ``musredit`` to be copied to the default installation directory 
+``$ROOTSYS/bin`` the last make install can be skipped and the executable can be copied somewhere else instead.
+
+musrgui (obsolete) 
+++++++++++++++++++
+
+If Qt3 is set up the installation of the ``musrfit`` editor can be done as follows from within the shell: 
+
+.. code-block:: bash
+
+  $ cd ~/Applications/musrfit/src/musrgui
+  $ qmake musrgui.pro
+  $ make
+  $ make install
+  
+The last command copies ``musrgui.app`` to the standard program directory ``/Applications``.
+
+Under some circumstances it might happen, that if ``musrgui`` was called from Finder the necessary libraries 
+for executing ``musrfit`` could not be found. In that case, the only workaround for the moment is to export 
+the environment variable ``DYLD_LIBRARY_PATH`` in the shell and call ``musrgui`` from a terminal! In order to 
+accomplish that, add the following lines to ``~/.profile`` and call ``musrgui`` with the specified command:
+
+.. code-block:: bash
+
+  export DYLD_LIBRARY_PATH=/opt/root-system/lib:/sw/lib:$DYLD_LIBRARY_PATH
+  alias mgui='/Applications/musrgui.app/Contents/MacOS/musrgui'
+
+Check the installation
+++++++++++++++++++++++
+
+In order to perform a quick test for finding out if the installation has been completed successfully, a few msr 
+files together with the corresponding data files can be found in the musrfit source tree at ``doc/examples/``.
+If ``musrgui`` has been installed, just open one of the ``test-*.msr`` files in the editor and test the ``musrfit`` 
+functionalities. Otherwise, if only the terminal should be used, as an initial test for instance the following could be done: 
+
+.. code-block:: bash
+
+  $ cd ~/Applications/musrfit/doc/examples
+  $ musrview test-histo-ROOT-NPP.msr
diff --git a/doc/html/_sources/tutorial.txt b/doc/html/_sources/tutorial.txt
new file mode 100644
index 00000000..657c0c78
--- /dev/null
+++ b/doc/html/_sources/tutorial.txt
@@ -0,0 +1,417 @@
+.. include:: <isogrk1.txt>
+.. index:: tutorial
+
+Tutorial for ``musrfit``
+========================
+
+Single-histogram-fit tutorial
+-----------------------------
+
+The |mgr|\SR-data-analysis process using musrfit is based on so-called msr files. These files contain all 
+information needed for the analysis such as names of the data files, a theory function, fit and plot parameters, 
+and so on. It is the idea of this page to explain the basic use of an msr file and the different programs 
+of the ``musrfit`` suite using the example of a single-histogram fit to time-differential transverse-field 
+|mgr|\SR data. For a complete description of all options please refer to the :ref:`manual <user-manual>`. 
+
+The example deals with a diamagnetic sample that has been measured in an applied field of approximately 150 G in 
+the `GPS spectrometer <https://www.psi.ch/smus/gps>`_ at `PSI <https://www.psi.ch>`_ using the "transverse geometry". 
+In this geometry the muon spin is rotated about 50° up and the field is applied parallel to the muon momentum. 
+Hence, the relevant positron counters (to detect the spin precession) are placed above (histogram 3), below (histogram 4) and right of (histogram 5) the sample. The run numbers start from 3110. 
+
+To analyze these data (in a simple way) one starts out from the msr file ``3110_tutorial.msr`` provided together 
+with the source-code distribution in the sub-directory ``doc/examples/``. This ASCII file can be edited using any 
+text editor. For convenience the editor ``musredit`` is provided which offer some msr-file-specific functionalities 
+and additionally serve as front ends to the underlying programs. In the following it is assumed that the file is 
+open within ``musredit``.
+
+The msr file 
+++++++++++++
+
+The msr file itself is divided into different blocks; a full description of the format can be found :ref:`here <msr-file-format>`. 
+In the file ``3110_tutorial.msr`` these blocks are successively: 
+
+:ref:`The title <msr-title-block>`
+
+::
+
+  sample XYZ
+  
+A descriptive title of the file.  
+
+:ref:`The FITPARAMETER block <msr-fitparameter-block>`
+
+::
+
+  FITPARAMETER
+  #    No Name        Value     Step        Pos_Error   Boundaries
+        1 NormUp      4500      5           none        0       none    
+        2 BgUp        200       1           none        0       none    
+        3 PhaseUp     15        1           none        
+
+        4 NormDown    4500      5           none        0       none    
+        5 BgDown      200       1           none        0       none    
+        6 PhaseDown   195       1           none        
+
+        7 NormRight   600       5           none        0       none    
+        8 BgRight     40        1           none        0       none    
+        9 PhaseRight  285       1           none         
+
+       10 AsymSig1    0.17      0.01        none        0       0.33    
+       11 RateSig1    2.5       0.1         none        0       none
+       12 FieldSig1   100       1           none       
+
+       13 AsymSig2    0.02      0.01        none        0       0.33    
+       14 RateSig2    0.5       0.1         none       
+       15 FieldSig2   150       1           none
+
+The list of parameters used in the theory function to describe the set of data. 
+Each parameter has a number, a name, an initial value and an initial step (for 
+the fitting process). If a parameter should be fixed, the initial step is set 
+to 0. After a fit (see below), this block contains the determined parameter values 
+and uncertainties (in the ``Step`` column). If asymmetric errors are determined, these 
+will be listed in the ``Step`` column (negative) and the ``Pos_Error`` column (positive). 
+Optionally, lower and upper boundaries for the parameters can be specified as 
+shown above.
+       
+The meaning of the parameters above is explained in the following:
+
+Since a :ref:`single-histogram fit <single-histogram-fit>` should be done, some 
+histogram-specific parameters are needed. These are a normalization constant (parameter 1), 
+a parameter describing the background of uncorrelated events (parameter 2) and the initial 
+phase of the spin precession with respect to the detector (parameter 3). As stated above, 
+there are three histograms containing useful information ("Up", "Down", "Right"); hence, 
+this set of parameters has to be present for each of them (parameters 1–9).
+The remaining parameters are used to model the decay asymmetry which is assumed to be equal 
+for all histograms. In this example one has two signals (*e.g.* from the sample and the 
+sample holder), each with an amplitude (parameters 10 and 13), a depolarization rate 
+(parameters 11 and 14) and a mean field (here given in Gauss, parameters 12 and 15). 
+
+:ref:`The THEORY block <msr-theory-block>`
+
+::
+
+  THEORY
+  asymmetry     10
+  simplExpo     11          (rate)
+  TFieldCos   map1  fun1       (phase frequency)
+  +
+  asymmetry     13
+  simpleGss     14          (rate)
+  TFieldCos   map1  fun2       (phase frequency)
+  
+The THEORY block is used to define a fit-parameter-dependent theory function used to model 
+the decay asymmetry. Different :ref:`predefined <msr-theory-block>` and :ref:`user-defined <user-functions>` 
+functions can be combined here. Theory lines following each other are *multiplied* and the **+** sign 
+is used to add different (here: two) signal contributions. The numbers are the parameter numbers 
+according to the ``FITPARAMETER block``. ``map`` and ``fun`` are used to refer to 
+histogram-dependent parameters and to interrelate fit parameters, respectively (see below).  
+
+:ref:`The FUNCTIONS block <msr-functions-block>`
+
+::
+
+  FUNCTIONS
+  fun1 = gamma_mu * par12
+  fun2 = gamma_mu * par15
+  
+Here functions interrelating different fit parameters and predefined constants can be defined for 
+the use in the ``THEORY block``. In the example, the functions are used to calculate the 
+muon-spin-precession frequencies for the given fields [:math:`\nu = \gamma_\mu B / (2\pi)`]. One 
+function is used for each signal. Altogether, the theory function defined above is 
+:math:`A(t) = p_{10} e^{-p_{11} t} \cos(\varphi_i \pi/180 + \gamma_\mu p_{12} t) + p_{13} e^{-(p_{14} t)^2/2} \cos(\varphi_i \pi/180 + \gamma_\mu p_{15} t)`, where the *p* are the parameters in the ``FITPARAMETER block`` and :math:`\varphi_i = p_3, p_6, p_9` 
+depending on the histogram as shall be seen later.  
+
+:ref:`The RUN block <msr-run-block>`
+
+::
+
+  RUN data/deltat_pta_gps_3110 PIM3 PSI PSI-BIN   (name beamline institute data-file-format)
+  fittype         0         (single histogram fit)
+  norm            1
+  backgr.fit      2
+  map             3    0    0    0    0    0    0    0    0    0
+  forward         3       
+  data            1       8000    
+  t0              1     
+  fit             0       4.9    
+  packing         20  
+  
+The RUN blocks are used to collect information on the data to be analyzed. Specifically, these are: 
+
+  ::
+  
+    RUN data/deltat_pta_gps_3110 PIM3 PSI PSI-BIN   (name beamline institute data-file-format)
+    
+  The path to the data file and the file format (NEXUS, ROOT-NPP, ROOT-PPC, PSI-BIN, PSI-MDU, WKM, MUD, MDU-ASCII).
+  
+  ::
+  
+    fittype         0         (single histogram fit)
+    
+  the fit type (0 = single-histogram fit) 
+  
+  ::
+  
+    norm            1
+    
+  the number of the fit parameter representing the normalization constant 
+  
+  ::
+  
+    backgr.fit      2
+    
+  the number of the fit parameter representing the background 
+   
+  ::
+   
+    map             3    0    0    0    0    0    0    0    0    0
+     
+  the definition of the **maps** used in the ``THEORY block`` — RUN-block-specific 
+  parameters are given here; in this example, **map1** is substituted by **parameter 3** 
+  in the ``THEORY block`` for this RUN block and **map2**, **map3**, and so on are undefined.   
+   
+  ::
+   
+    forward         3
+     
+  the histogram number; in this example 3 corresponds to the histogram of the "Up" positron counter 
+   
+  ::
+   
+    data            1        8000
+     
+  start and end bins of the range containing useful data in the histogram (to be adjusted, *e.g.* by using ``musrt0``, see below) 
+   
+  ::
+   
+    t0              1
+     
+  histogram bin corresponding to the time zero (muon implantation time) (to be adjusted, *e.g.* by ``musrt0``, see below)  
+   
+  ::
+   
+    fit             0       4.9
+     
+  start and end times (in |mgr|\s) defining the fit range. *In case the fit range 
+  exceeds the range of useful data (specified above using the data tag), eventually 
+  this data range is used as fit range.* 
+    
+  ::
+    
+    packing         20
+  
+  the packing of the histograms (in histogram bins)
+    
+  Since the data of three histograms is to be analyzed, the file contains not only one but 
+  three RUN blocks — each defining the histogram-specific information following the example given above.
+  
+:ref:`The COMMAND block <msr-commands-block>`
+
+::
+
+  COMMANDS
+  MINIMIZE
+  MINOS
+  SAVE
+  
+In the ``COMMANDS block``, a sequence of operations that should be performed is defined. 
+Here, the requested operations are the minimization of :math:`\chi^2` (MINIMIZE), the 
+calculation of *asymmetric errors* (MINOS) as well as saving the found parameter values 
+and uncertainties to the msr file (SAVE). A full description of the possible commands can 
+be found :ref:`here <msr-commands-block>`.   
+  
+:ref:`The FOURIER block <msr-fourier-block>`
+
+::
+  
+  FOURIER
+  units            Gauss   # units either 'Gauss', 'MHz', or 'Mc/s'
+  fourier_power    10
+  apodization      WEAK    # NONE, WEAK, MEDIUM, STRONG
+  plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE
+  phase            par3
+  range            0.0    600.0
+
+The ``FOURIER block`` is used to define basic settings for the Fourier transform available 
+in :ref:`musrview <musrview>`. These are: 
+  
+  ::
+  
+    units            Gauss   # units either 'Gauss', 'MHz', or 'Mc/s'
+    
+  the units of the Fourier domain 
+  
+  ::
+  
+    fourier_power    10
+    
+  the number of data points used for the discrete transform, here :math:`2^{10}=1024`.   
+  
+  ::
+  
+    apodization      WEAK    # NONE, WEAK, MEDIUM, STRONG
+    
+  the :ref:`apodization <msr-fourier-block-apodization>` to be used
+  
+  ::
+  
+    plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE 
+    
+  what should be plotted (real part, imaginary part, and so on) 
+  
+  ::
+  
+    phase            par3
+    
+  the initial phase of the input data is given here in degrees. Optionally, a phase parameter 
+  from the ``FITPARAMETER block`` can be given, here **par3** takes the value of **parameter 3**. 
+  
+  ::
+  
+    range            0.0    600.0
+    
+  the start and end points of the range of the Fourier transform in the units specified above 
+  
+:ref:`The PLOT block <msr-plot-block>`
+
+::
+
+  PLOT 0   (single histo plot)
+  runs     1   2   
+  range    0   4  -0.2   0.2
+  
+The ``PLOT block`` defines which data (corresponding to the given RUN blocks) is plotted when 
+:ref:`musrview <musrview>` is called. In the given example, a canvas would be drawn containing 
+the (life-time-corrected) data of the first two ``RUN blocks`` ("Up" and "Down" positron counters). 
+The abscissa would range from 0 to 4 |mgr|\s, the axis of ordinates from -0.2 to 0.2.
+It is possible to define more than one ``PLOT block``. Each ``PLOT block`` corresponds to a 
+separate canvas. Therefore, the second ``PLOT block`` in the file  
+
+::
+
+  PLOT 0   (single histo plot)
+  runs     3   
+  use_fit_ranges
+  
+produces an additional window containing the (not life-time-corrected) data of the third ``RUN block`` 
+("Right" positron counter). The abscissa ranges from 0 to 4.9 |mgr|\s (according to the fit range given 
+in the ``RUN block``).  
+
+:ref:`The STATISTIC block <msr-statistic-block>`
+
+::
+
+  STATISTIC --- 2011-07-09 10:58:44
+  chisq = 1348.1764, NDF = 1146, chisq/NDF = 1.176419
+  
+This block is the last block of a msr file. It contains some information on the fit: the 
+date and time as well as the absolute and normalized values of :math:`\chi^2` and the 
+number of degrees of freedom in the fit.
+These information only have a meaning if the fitting procedure has been executed at 
+least once and the fit has converged!   
+  
+Determine t0 and the data range using musrt0
+++++++++++++++++++++++++++++++++++++++++++++
+
+Before the given model can be fitted to the data, the data ranges and time zeros of the different 
+``RUN blocks`` have to be set correctly. This can be achieved using :ref:`musrt0 <musrt0>`. 
+Starting this program by selecting the ``musrt0`` button in ``musredit`` or calling from a terminal 
+
+.. code-block:: bash
+
+  $ musrt0 3110_tutorial.msr
+  
+opens an interactive window plotting the data of the first RUN block:  
+
+.. image:: ../images/tutorial-musrt0-1.*
+
+The green line (at bin 1) represents time zero, the blue lines the start (at bin 1) and end (at bin 8000) 
+of the data range and the optional red lines give the limits of the background range (if the background 
+shall not be determined by the fit). All lines can be either dragged to reasonable locations or set by 
+pressing the corresponding keyboard shortcuts. In the example the time zero can be set by pressing **T** 
+(which moves the green line to the bin containing the maximum number of counts), the start of the data 
+range should be set to about five bins later by zooming into the graph around bin 250 and pressing **d** 
+when the cursor is found at a suitable location:
+
+.. image:: ../images/tutorial-musrt0-2.*
+
+After all lines have been adjusted for the first histogram, one can go on to the second by pressing **q**. 
+This procedure is repeated until all ranges have been set correctly. When finished with the last histogram 
+the new t0 and data-range values will be written to the msr file. A full description of ``musrt0`` can be 
+found :ref:`here <musrt0>`.
+
+Fit the model to the data using ``musrfit``
++++++++++++++++++++++++++++++++++++++++++++
+
+Now that the basics of the msr file have been introduced and the necessary adjustments have been done one 
+can proceed with fitting the specified model to the data. This is done by selecting the ``musrfit`` icon 
+in ``musredit`` or calling from a terminal 
+
+.. code-block:: bash
+
+  $ musrfit 3110_tutorial.msr
+  
+After the fitting procedure has finished the msr file is updated and contains the newly determined values 
+of the fit parameters.   
+
+View the data and the fit using ``musrview``
+++++++++++++++++++++++++++++++++++++++++++++
+
+The data and the corresponding fit can be visualized by choosing the ``musrview`` icon in ``musredit`` or 
+calling from a terminal 
+
+.. code-block:: bash
+
+  $ musrview 3110_tutorial.msr
+
+This creates the windows according to the given PLOT blocks in the msr file:
+
+.. image:: ../images/tutorial-musrview-1.*
+
+The basic features of ``musrview`` can be found in the ``Musrfit menu``. They include: 
+
+* export the shown data and the model to an ASCII file with comma-separated values
+* presenting the difference between the shown data and the model (keyboard shortcut: **d**)
+* calculate and show the Fourier transform of the shown data (keyboard shortcut: **f**), *e.g.* for 
+  the asymmetry of the "Up" and "Down" detectors:
+  
+.. image:: ../images/tutorial-musrview-FT.*
+
+Process multiple msr files using ``msr2data``
++++++++++++++++++++++++++++++++++++++++++++++
+
+This short introduction is concluded by calling attention to the program :ref:`msr2data <msr2data>`. 
+As the name indicates the main purpose of this program is to extract the ``FITPARAMETER`` block 
+information from multiple msr files with the same structure and to summarize them in a single 
+ASCII file (either in ``TRIUMF DB`` format or simple columns). However, as described in detail 
+in the manual, it is not only possible to collect data from msr files but also to create new 
+msr files from a template and to process these files using ``musrfit`` on the fly.
+
+Assuming the successive runs **3111** through **3114** can be analyzed using the same model introduced 
+above for run **3110** (*e.g.* in the case one has done measurements at different temperatures) one can 
+use the file ``3110_tutorial.msr`` as template, generate the files ``3111_tutorial.msr`` through 
+``3114_tutorial.msr`` with the corresponding updates in the RUN blocks, call for each one ``musrfit`` 
+and finally summarize the FITPARAMETER block information of all processed files in an ASCII output 
+file ``tutorial-T-dependence.dat`` (simple columns). If further information on the temperature or the 
+applied field is available in the data files these will be included as well in the resulting ASCII file.
+From the terminal this would be done as follows:
+
+.. code-block:: bash
+
+  $ msr2data 3110 3114 _tutorial fit-3110 -o tutorial-T-dependence.dat data
+  
+To achieve the same in ``musredit`` (in this snapshot in the *dark theme*) one selects the ``msr2data`` icon and fills the form accordingly:  
+
+.. image:: ../images/tutorial-musredit-msr2data.*
+
+Further reading 
++++++++++++++++
+
+This page only summarizes the very basic features and options of the programs contained in the ``musrfit`` suite. 
+For a complete description please refer to the manuals of :ref:`musrfit <musrfit>` (including :ref:`musrview <musrview>`, 
+:ref:`musrt0 <musrt0>`, and :ref:`musrFT <musrFT>`), :ref:`mupp <mupp>`, :ref:`musredit <musredit-sec>`, and :ref:`msr2data <msr2data>`. 
+
+Asymmtery-fit tutorial
+----------------------
+
+to be written yet.
diff --git a/doc/html/_sources/user-libs.txt b/doc/html/_sources/user-libs.txt
new file mode 100644
index 00000000..8e00db15
--- /dev/null
+++ b/doc/html/_sources/user-libs.txt
@@ -0,0 +1,747 @@
+:tocdepth: 3
+
+.. include:: <isogrk1.txt>
+.. index:: user-libs
+
+.. _user-libs:
+
+Documentation of user libs (user functions) 
+===========================================
+
+.. index:: BMW-libs
+.. _BMW-libs:
+
+Meissner-Profiles / Vortex-Lattice related functions (BMW libs)
+---------------------------------------------------------------
+
+.. index:: libFitPofB
+
+libFitPofB
+++++++++++
+
+Introduction
+^^^^^^^^^^^^
+
+``libFitPofB`` is a collection of ``C++`` classes using the ``musrfit`` :ref:`user-functions <user-functions>` 
+interface in order to facilitate the usage in conjunction with ``musrfit``. The classes contained in this 
+library generally implement calculations of one-dimensional static magnetic field distributions 
+:math:`p(B)` which lead to the muon-spin depolarization functions 
+
+.. math::
+
+  {\cal P}(t) = \int p(B) \cos(\gamma_\mu B t + \varphi) dB,
+  
+where :math:`\gamma_\mu = 2 \pi \times 135.54` MHz/T is the gyromagnetic ratio of the muon and :math:`\varphi` 
+is the initial phase of the muon spins with respect to the positron detector. At the moment the only available 
+implementations deal with field distributions measured in local isotropic superconductors, either by means of 
+low-energy |mgr|\SR (see `<https://www.psi.ch/smus/lem>`_) in the Meissner state or by bulk |mgr|\SR in the mixed state. 
+In the following the basic usage of the library in ``musrfit`` is explained—the calculations by themselves are only 
+outlined. For further information please refer to the original literature and/or the source code of the implementation.
+
+.. note:: 
+
+  In order to supply certain information needed for the calculations but not suited to be stored in the ``musrfit`` 
+  msr files an ``XML`` configuration file in the working directory is used. For details, see below.
+  
+.. note:: 
+
+  The implementations in this library heavily rely on `FFTW3 <http://fftw.org/>`_. In principle, it always checks what 
+  is the best way to do efficient Fourier transforms for a given machine before the transforms are actually done. If 
+  repeatedly Fourier transforms of the same (sizable) length should be done, it might be worth storing the once 
+  obtained information in an external file and just load it the next time this information is needed 
+  (`wisdom handling <http://fftw.org/fftw3_doc/Wisdom.html>`_). In case this feature shall be used, a valid wisdom 
+  file has to be specified in the ``XML`` file. 
+  
+.. note::
+
+  The model functions described in the following do generally *not behave nicely* in conjunction with ``MINUIT`` 
+  function minimizations (or maximizations). The analysis process at the moment in most cases involves some 
+  tedious trial-and-error procedure, where the displayed MINUIT information as always deserves attention. 
+  This is especially true if small effects should be analyzed (*e.g.* small diamagnetic shifts in superconductors). 
+  The parameter uncertainty in many cases has to be estimated independently. Due to these limitations, also 
+  the use of the fit option of ``msr2data`` *cannot* be advised. 
+   
+.. note::
+
+  If these classes still prove useful and results obtained through them are part of scientific publications, 
+  an acknowledgment of the use of the library is appreciated.
+  
+LE-|mgr|\SR
+^^^^^^^^^^^
+
+.. index:: 1D-London-Meissner
+
+One-dimensional London model for the Meissner state of isotropic superconductors 
+""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
+
+The models for analyzing LE-|mgr|\SR data assume the magnetic induction :math:`B(z)` to vary only in the 
+dimension parallel to the momentum of the incident muons. In such a case the magnetic field distribution is given by 
+
+.. math::
+
+  p(B) = n(z) \left| \frac{dB(z)}{dz} \right|^{-1}
+  
+where :math:`n(z)` is the muon implantation profile simulated by ``TRIM.SP``. 
+
+Assuming an array of *N* isotropic local superconductors with a total thickness *d* in the Meissner state 
+the magnetic induction is given by solving the 1D London equation 
+
+.. math::
+
+   \frac{\partial^2}{\partial z^2}B_i(z) = \frac{1}{\lambda_i^2}B_i(z) 
+   
+for each layer *i* taking into account the boundary conditions (F. London, Superfluids: Macroscopic Theory of Superconductivity, Dover (1961), p. 34)
+
+.. math:: 
+
+   B_1(0) = B_N(d) = \mu_0H
+   
+   B_i(d_i) = B_{i+1}(d_i)
+   
+   \lambda_i^2B_i'(z)\Big\vert_{z=d_i} = \lambda_{i+1}^2B_{i+1}'(z)\Big\vert_{z=d_i}, 
+   
+where the :math:`d_i` specify the interfaces between two adjacent layers and :math:`\lambda_i` is 
+the magnetic field penetration depth in the constituent :math:`i`.
+
+The calculation of the field distribution has been set up for a superconducting half-space as well 
+as superconducting thin films with up to three superconducting layers with different penetration depths. 
+The muon-spin depolarization functions are calculated using the following lines in the ``THEORY`` block 
+of a ``musrfit`` msr file: 
+
+.. index:: TLondon1DHS
+
+**Superconducting half-space**
+
+::
+
+  userFcn  libFitPofB TLondon1DHS 1 2 3 4 5
+
+The parameters are:
+
+#. phase (deg)
+#. muon implantation energy as specified in the :ref:`XML startup <BMWlibs-XML>` file (keV)
+#. applied field (G)
+#. thickness of the dead layer (nm)
+#. magnetic field penetration depth (nm) 
+
+.. index:: TLondon1D1L
+
+**Superconducting thin film (one layer)**
+
+:: 
+
+  userFcn  libFitPofB TLondon1D1L 1 2 3 4 5 6 [a b]
+  
+The mandatory parameters are:
+
+#. phase (deg)
+#. muon implantation energy as specified in the :ref:`XML startup <BMWlibs-XML>` file (keV)
+#. applied field (G)
+#. thickness of the dead layer (nm)
+#. thickness of the actually superconducting layer (nm)
+#. magnetic field penetration depth (nm)   
+
+The optional parameters are:
+
+a. fraction f\ :sub:`1` of muons in the thin film contributing to the signal (0 ≤ f\ :sub:`1` ≤ 1)
+b. fraction f\ :sub:`s` of muons in the substrate contributing to the signal (0 ≤ f\ :sub:`s` ≤ 1)
+
+.. index:: TLondon1D2L
+
+**Superconducting thin-film bilayer heterostructure**
+
+::
+
+  userFcn  libFitPofB TLondon1D2L 1 2 3 4 5 6 7 8 [a b c]
+       
+The mandatory parameters are:
+
+#. phase (deg)
+#. muon implantation energy as specified in the :ref:`XML startup <BMWlibs-XML>` file (keV)
+#. applied field (G)
+#. thickness of the dead layer (nm)
+#. thickness of the actually superconducting first layer (nm)
+#. thickness of the actually superconducting second layer (nm)
+#. magnetic field penetration depth of the first layer (nm)
+#. magnetic field penetration depth of the second layer (nm) 
+
+The optional parameters are:
+
+a. fraction f\ :sub:`1` of muons in the dead and first layer contributing to the signal (0 ≤ f\ :sub:`1` ≤ 1)
+b. fraction f\ :sub:`2` of muons in the second layer contributing to the signal (0 ≤ f\ :sub:`2` ≤ 1)
+c. fraction f\ :sub:`s` of muons in the substrate contributing to the signal (0 ≤ f\ :sub:`s` ≤ 1) 
+
+.. index:: TLondon1D3L
+
+**Superconducting thin-film trilayer heterostructure**
+
+::
+
+  userFcn  libFitPofB TLondon1D3L 1 2 3 4 5 6 7 8 9 10 [a b c d]
+
+The mandatory parameters are:
+
+#. phase (deg)
+#. muon implantation energy as specified in the :ref:`XML startup <BMWlibs-XML>` file (keV)
+#. applied field (G)
+#. thickness of the dead layer (nm)
+#. thickness of the actually superconducting first layer (nm)
+#. thickness of the actually superconducting second layer (nm)
+#. thickness of the actually superconducting third layer (nm)
+#. magnetic field penetration depth of the first layer (nm)
+#. magnetic field penetration depth of the second layer (nm)
+#. magnetic field penetration depth of the third layer (nm) 
+
+The optional parameters are:
+
+a. fraction f\ :sub:`1` of muons in the dead and first layer contributing to the signal (0 ≤ f\ :sub:`1` ≤ 1)
+b. fraction f\ :sub:`2` of muons in the second layer contributing to the signal (0 ≤ f\ :sub:`2` ≤ 1)
+c. fraction f\ :sub:`3` of muons in the third layer contributing to the signal (0 ≤ f\ :sub:`3` ≤ 1)
+d. fraction f\ :sub:`s` of muons in the substrate contributing to the signal (0 ≤ f\ :sub:`s` ≤ 1) 
+   
+Bulk |mgr|\SR
+^^^^^^^^^^^^^
+
+.. index:: Vortex-State-Isotropic
+
+Field distributions in the mixed state of isotropic superconductors 
+"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
+
+When investigating superconductors in the mixed state by means of conventional |mgr|\SR a 
+two-dimensional flux-line lattice is probed randomly by the muons. The spatial field 
+distributions within such an ordered lattice are modeled using the Fourier series
+
+.. math::
+
+   B(\mathbf{r}) = \langle B \rangle \sum\limits_{\mathbf{K}}B_{\mathbf{K}}\exp(-\imath\mathbf{K}\mathbf{r}), 
+   
+where :math:`\mathbf{r}=(x,y)`, **K** are the reciprocal lattice vectors of a two-dimensional 
+vortex lattice and the :math:`B_{\mathbf{K}}` are the Fourier coefficients depending on the 
+magnetic penetration depth :math:`\lambda` and the superconducting coherence length :math:`\xi`. 
+The :math:`B_{\mathbf{K}}` for some specific models are as follows:    
+
+**London model with Gaussian cutoff** (E.H. Brandt, `J. Low Temp. Phys. 73, 355 (1988) <http://dx.doi.org/10.1007/BF00683568>`_.)
+
+.. math::
+
+   B_{\mathbf{K}} = \frac{\exp\left({-K^2\xi^2/2}\right)}{1 + K^2\lambda^2}
+
+**Modified London model** (T.M. Riseman *et al.*, `Phys. Rev. B 52, 10569 (1995) <http://dx.doi.org/10.1103/PhysRevB.52.10569>`_.)   
+
+.. math::
+   
+  B_{\mathbf{K}} = \frac{\exp\left({-K^2\xi^2/2(1-b)}\right)}{1 + K^2\lambda^2/(1-b)},
+    
+where :math:`b = \langle B \rangle / (\mu_0 H_{\rm c2})`. 
+
+**Analytical Ginzburg-Landau model** ( A. Yaouanc, P. Dalmas de Réotier and E.H. Brandt, `Phys. Rev. B 55, 11107 (1997) <http://dx.doi.org/10.1103/PhysRevB.55.11107>`_)
+
+.. math::
+
+  B_{\mathbf{K}} = \frac{f_{\infty}K_1\left(\frac{\xi_v}{\lambda}\sqrt{f_{\infty}^2+\lambda^2K^2}\right)}{K_1\left(\frac{\xi_v}{\lambda}f_{\infty}\right)\sqrt{f_{\infty}^2+\lambda^2K^2}},
+  
+where :math:`f_{\infty} = 1 - b^4,~\xi_v = \xi\left(\sqrt{2}-{3\xi}/\left({4\lambda}\right)\right)\sqrt{(1+b^4)(1-2b(1-b)^2)}` and
+:math:`K_1` is a modified Bessel function.
+
+Apart from the mentioned analytic models the **numerical Ginzburg-Landau model** (`E.H. Brandt, Phys. Rev. B 68, 054506 (2003). <http://dx.doi.org/10.1103/PhysRevB.68.054506>`_) is available. In this case :math:`B(\mathbf{r})` is obtained by an iterative minimization of the free energy of the vortex lattice. 
+
+**Concerning the applicability (e.g. field regions) of each of the mentioned models please refer to the original publications!**
+
+At the moment, the calculation of the field distribution has been implemented for *triangular* flux-line lattices. 
+The number of grid lines in which the inter-vortex distance is divided for the calculations to be specified through 
+the :ref:`XML startup <BMWlibs-XML>`.
+The muon-spin depolarization functions finally are calculated using the following lines in the THEORY block of a ``musrfit`` msr file: 
+
+.. index:: Vortex-Gaussian-CutOff
+
+**2D triangular vortex lattice, London model with Gaussian cutoff** 
+
+::
+
+  userFcn  libFitPofB TBulkTriVortexLondon 1 2 3 4
+  
+The parameters are:
+
+#. phase (deg)
+#. mean magnetic induction (G)
+#. magnetic penetration depth (nm)
+#. Ginzburg-Landau coherence length (nm)   
+
+.. index:: Vortex-London-modified
+
+**2D triangular vortex lattice, modified London model**
+
+::
+
+  userFcn  libFitPofB TBulkTriVortexML 1 2 3 4
+  
+The parameters are:
+
+#. phase (deg)
+#. mean magnetic induction (G)
+#. magnetic penetration depth (nm)
+#. Ginzburg-Landau coherence length (nm)   
+
+.. index:: Vortex-Analytic-GL
+
+**2D triangular vortex lattice, analytic Ginzburg-Landau model** 
+
+::
+
+  userFcn  libFitPofB TBulkTriVortexAGL 1 2 3 4
+  
+The parameters are:
+
+#. phase (deg)
+#. mean magnetic induction (G)
+#. magnetic penetration depth (nm)
+#. Ginzburg-Landau coherence length (nm) 
+
+.. index:: Vortex-Numeric-GL
+
+**2D triangular vortex lattice, numerical Ginzburg-Landau model**
+
+::
+
+  userFcn  libFitPofB TBulkTriVortexNGL 1 2 3 4
+  
+The parameters are:
+
+#. phase (deg)
+#. mean magnetic induction (G)
+#. magnetic penetration depth (nm)
+#. Ginzburg-Landau coherence length (nm) 
+
+.. note::
+
+  In order to improve the convergence of ``MIGRAD`` it has proven useful to use the log-likelihood 
+  maximization instead of the :math:`\chi^2` minimization routines and to choose sufficiently large 
+  initial steps for the parameters. Calling ``MINOS`` in conjunction with these functions is futile.
+
+Therefore, the :ref:`COMMANDS block <msr-commands-block>` of the msr file could look like:   
+
+::
+
+  COMMANDS
+  STRATEGY 2
+  MAX_LIKELIHOOD
+  MIGRAD
+  HESSE
+  SAVE
+  
+.. index:: BMWlibs-XML
+.. _BMWlibs-XML:
+   
+The XML startup file
+^^^^^^^^^^^^^^^^^^^^
+
+``BMW_startup.xml`` is a configuration file located in the working directory. In this file some settings 
+like the time and field resolution of the calculations as well as the present muon implantation profiles 
+for a LE-|mgr|\SR analysis have to be defined. The following XML tags are allowed to define settings: 
+
+**<debug>ONE_OR_ZERO</debug>**
+  activate the debugging output of the settings read from the XML file by setting 1, deactivate it with 0.
+**<wisdom>PATH_TO_FILE</wisdom>**
+  specify the ``PATH_TO_FILE`` to an `FFTW3 wisdom file <http://fftw.org/fftw3_doc/Wisdom.html#Wisdom>`_ 
+  that should be used; if the ``PATH_TO_FILE`` is invalid, no ``FFTW3`` wisdom will be used.
+**<delta_t>ResT</delta_t>**
+  set the time resolution ``ResT`` for the calculated depolarization function in microseconds.
+**<delta_B>ResB</delta_B>**
+  set the field resolution ``ResB`` for the calculated field distribution in Gauss.
+**<VortexLattice></VortexLattice>**
+  set the parameters used for the calculation of the spatial field distribution of a vortex lattice.
+  
+  **<N_VortexGrid>N</N_VortexGrid>**
+    specify the number of points **N** (in each of the two dimensions) for which the fields within the 
+    vortex lattice are calculated (inside a **<VortexLattice>** environment) 
+    
+**<LEM></LEM>**     
+  set the parameters used for the calculation of LE-|mgr|\SR field distributions 
+  
+  **<data_path>DATA_PATH_PREFIX</data_path>**
+    specify the ``DATA_PATH_PREFIX`` to the ``TRIM.SP`` implantation profiles (inside a **<LEM>** environment)
+  **<N_theory>N_THEORY</N_theory>**
+    specify the number of points **N_THEORY** for which *B(z)* is calculated (inside a **<LEM>** environment)
+    The specification of this number is not needed if the calculation of the inverse of *B(z)* is implemented!
+  **<energy_list></energy_list>**
+    set the energies for which ``TRIM.SP`` implantation profiles are available (inside a **<LEM>** environment) 
+    
+    **<energy_label>LABEL</energy_label>**
+      specify the **LABEL** within the file name of a available ``TRIM.SP`` ``RGE`` file (inside a **<energy_list>** environment)
+      The expected name of the ``RGE`` file will be: ``DATA_PATH_PREFIX + LABEL + .rge`` 
+    **<energy>E</energy>**
+      specify the muon energy *E* (in keV) belonging to the ``TRIM.SP`` ``RGE`` file given above (inside a **<energy_list>** environment)   
+      
+An example XML file looks as follows:      
+
+.. code-block:: xml
+
+  <?xml version="1.0" encoding="UTF-8"?>
+  <BMW>
+    <debug>0</debug>
+    <wisdom>/home/user/WordsOfWisdom.dat</wisdom>
+    <delta_t>0.01</delta_t>
+    <delta_B>0.5</delta_B>
+    <VortexLattice>
+      <N_VortexGrid>1024</N_VortexGrid>
+    </VortexLattice>
+    <LEM>
+      <data_path>/home/user/TrimSP/some-sample-</data_path>
+      <N_theory>5000</N_theory>
+      <energy_list>
+        <energy_label>02_0</energy_label>
+        <energy>2.0</energy>
+        <energy_label>03_0</energy_label>
+        <energy>3.0</energy>
+        <energy_label>03_6</energy_label>
+        <energy>3.6</energy>
+        <energy_label>05_0</energy_label>
+        <energy>5.0</energy>
+        <energy_label>05_3</energy_label>
+        <energy>5.3</energy>
+      </energy_list>
+    </LEM>
+  </BMW>
+  
+Nonlocal superconductivity related Meissner screening functions (AS libs) 
+-------------------------------------------------------------------------
+
+To be written yet ...
+  
+.. index:: BNMR-libs
+.. _BNMR-libs:
+
+Functions to analyze |bgr|-NMR data (BNMR libs) 
+-------------------------------------------------------------------------
+
+This is a collection of ``C++`` classes using the ``musrfit`` :ref:`user-functions <user-functions>` 
+interface in order to facilitate the usage in conjunction with ``musrfit``. It consists of two libraries: 
+
+* ``libBNMR`` contains functions to fit spin lattice relaxation (SLR) data.
+* ``libLineProfile`` contains functions to fit resonance lineshapes.
+
+
+.. note:: 
+
+  Currently it is recommended to read in the data in ASCII format as a non-|mgr|\SR fit  :ref:`(fit type 8) <non-musr-fit>`.
+
+.. index:: libBNMR
+
+libBNMR
+++++++++++
+
+In |bgr|-NMR the SLR is usually measured by implanting a pulse of :math:`^8`\ Li with a length :math:`t_0` into the sample. 
+The asymmetry is measured both during the pulse and afterwards. For a a general spin relaxation function :math:`f(t)` the time evolution of the asymmetry is then given by [`Z. Salman, et al., PRL 96, 147601 (2006) <http://dx.doi.org/10.1103/PhysRevLett.96.147601>`_]: 
+
+
+
+.. index:: SLR
+.. _SLR:
+
+.. math::  
+   P(t) = \left\{\begin{matrix}
+  \frac{\int_0^t e^{-(t-t')/\tau_{\mathrm{Li}}}f(t-t')dt'}{\int_0^t e^{-t'/\tau_{\mathrm{Li}}}dt' }       &  t\leq t_0\\[6pt]
+  \frac{\int_0^{t_0}e^{-(t_0-t')/\tau_{\mathrm{Li}}}f(t-t')dt'}{\int_0^{t_0}e^{-t'/\tau_{\mathrm{Li}}}dt'}    &  t> t_0,
+  \end{matrix}\right.
+
+where :math:`\tau_{\mathrm{Li}}=1.21`\ s is the :math:`^8`\ Li lifetime.
+
+
+Functions
+^^^^^^^^^^^^
+The ``libBNMR`` library currently contains the following functions:
+
+
+
+
+.. index:: ExpRlx
+
+**Exponential relaxation**
+
+::
+
+  userFcn libBNMR ExpRlx 1 2
+
+The parameters are:
+
+#. pulse length :math:`t_0` (s)
+#. relaxation rate :math:`\lambda` (s\ :math:`^{-1}`\ )
+
+This function implements :math:`f(t)=e^{-\lambda t}`.
+
+.. index:: SExpRlx
+
+**Stretched exponential relaxation**
+
+::
+
+  userFcn libBNMR SExpRlx 1 2 3
+
+The parameters are:
+
+#. pulse length :math:`t_0` (s)
+#. relaxation rate :math:`\lambda` (s\ :math:`^{-1}`\ )
+#. stretching exponent :math:`\beta`
+
+This function implements :math:`f(t)=e^{-(\lambda t)^{\beta}}`.
+
+
+  
+.. index:: libLineProfile
+
+libLineProfile
++++++++++++++++++
+In addition to some simple line shapes ``libLineProfile`` contains functions to fit chemical shift anisotropies in the powder average.
+Their functional form can be found in  `M. Mehring, Principles of High Resolution NMR in Solids (Springer 1983) <http://dx.doi.org/10.1007/978-3-642-68756-3_2>`_.
+
+For an axially symmetric interaction it is given by:
+
+.. index:: Iax
+.. _Iax:
+
+.. math::
+
+      I_{\mathrm ax}(f)=\left\{\begin{matrix} \frac{1}{2\sqrt{(f_\parallel-f_\perp)(f-f_\perp)}}& f\in(f_\perp,f_\parallel)\cup(f_\parallel,f_\perp)\\[6pt] 0 & \text{otherwise}\end{matrix} \right.
+
+where :math:`f_\parallel` and :math:`f_\perp` are the frequencies that would be observed if the field is oriented paralell or perpendicular to the symmetry axis, respectively.
+
+
+| In case of a completely anisotropic interaction, the powder average can be described by the frequencies along the three principle axis :math:`f_1,f_2,f_3`.
+| Assume without loss of generality that :math:`f_1<f_2<f_3`, then
+
+.. index:: Ianiso
+.. _Ianiso:
+
+.. math::  
+      I(f)&=\left\{\begin{matrix}
+        \frac{K(m)}{\pi\sqrt{(f-f_1)(f_3-f_2)}},& f_3\geq f>f_2 \\[9pt]
+        \frac{K(m)}{\pi\sqrt{(f_3-f)(f_2-f_1)}},& f_2>f\geq f_1\\[9pt]
+        0 & \text{otherwise}
+      \end{matrix} \right.  \\
+ 	\\
+      m&=\left\{\begin{matrix}
+        \frac{(f_2-f_1)(f_3-f)}{(f_3-f_2)(f-f_1)},& f_3\geq f>f_2 \\[6pt]
+        \frac{(f-f_1)(f_3-f_2)}{(f_3-f)(f_2-f_1)},& f_2>f\geq f_1\\[6pt]
+      \end{matrix} \right.  \\
+ 	\\
+      K(m)&=\int_0^{\pi/2}\frac{\mathrm d\varphi}{\sqrt{1-m^2\sin^2{\varphi}}},
+
+
+:math:`K(m)` is the complete elliptic integral of the first kind.
+
+
+
+Functions
+^^^^^^^^^^^^
+The ``libLineProfile`` library currently contains the following functions:
+
+
+
+
+.. index:: LineGauss
+
+**Gaussian**
+
+::
+
+  userFcn  libLineProfile LineGauss 1 2
+
+The parameters are:
+
+#. center of the line :math:`f_0`
+#. FWHM of the line :math:`\sigma`
+
+| The height of the peak is 1.
+| The functional form is given by
+
+.. math::
+   A(f)=e^{-\frac{4\ln 2 (f-f_0)^2}{ \sigma^2}}
+
+
+.. index:: LineLorentzian
+
+**Lorentzian**
+
+::
+
+  userFcn  libLineProfile LineLorentzian 1 2
+
+The parameters are:
+
+#. center of the line :math:`f_0`
+#. FWHM of the line :math:`w`
+
+| The height of the peak is 1. 
+| The functional form is given by
+
+.. math::
+    A(f)= \frac{w^2}{4(f-f_0)^2+w^2}
+
+
+.. index:: LineLaplace
+
+**Laplacian**
+
+::
+
+  userFcn  libLineProfile LineLaplace 1 2
+
+The parameters are:
+
+#. center of the line :math:`f_0`
+#. FWHM of the line :math:`w`
+
+| The height of the peak is 1. 
+| The functional form is given by
+
+.. math::
+ A(f)=e^{-2\ln 2 \left|\frac{f-f_0}{w}\right|}
+
+
+
+.. index:: LineSkewLorentzian
+
+**Skewed Lorentzian**
+
+::
+
+  userFcn  libLineProfile LineSkewLorentzian 1 2 3
+
+The parameters are:
+
+#. center of the line :math:`f_0`
+#. width of the line :math:`w`
+#. skewness parameter :math:`a`
+
+| The height of the peak is 1. 
+| The functional form is given by
+
+.. math::
+    A(f)=  \frac{w w_a}{4(f-f_0)^2+w_a^2}, \quad w_a=\frac{2w}{1+e^{a(f-f_0)}}
+
+
+
+.. index:: LineSkewLorentzian2
+
+**Skewed Lorentzian 2**
+
+::
+
+  userFcn  libLineProfile LineSkewLorentzian2 1 2 3
+
+The parameters are:
+
+#. center of the line :math:`f_0`
+#. width left of the center :math:`w_1`
+#. width right of the center :math:`w_2`
+
+| The height of the peak is 1. 
+| The functional form is given by
+
+.. math::
+    A(f)=  \left\{\begin{matrix}\frac{{w_1}^2}{4{(f-f_0)}^2+{w_1}^2},&f\leq f_0\\[9pt] \frac{{w_2}^2}{4{(f-f_0)}^2+{w_2}^2},&f>f_0\end{matrix}\right.
+
+
+
+.. index:: PowderLineAxialLor
+
+
+**Powder average of an axially symmetric interaction convoluted with a Lorentzian**
+
+::
+
+  userFcn  libLineProfile PowderLineAxialLor 1 2 3
+
+The parameters are:
+
+#.  frequency for the field oriented paralell to the symmetry axis :math:`f_\parallel`
+#.  frequency for the field oriented perpendicular to the symmetry axis :math:`f_\parallel`
+#.  FWHM of the Lorentzian :math:`w`
+
+| The height of the peak is :math:`\sim`\ 1. 
+| The functional form is given by
+
+.. math::
+    A(f)= I_{\mathrm ax}(f)\circledast\left( \frac{w^2}{4f^2+w^2} \right)
+
+with :math:`I_{\mathrm ax}(f)` defined :ref:`above <Iax>`.
+
+    
+
+.. index:: PowderLineAxialGss
+
+
+**Powder average of an axially symmetric interaction convoluted with a Gaussian**
+
+::
+
+  userFcn  libLineProfile PowderLineAxialGss 1 2 3
+
+The parameters are:
+
+#.  frequency for the field oriented paralell to the symmetry axis :math:`f_\parallel`
+#.  frequency for the field oriented perpendicular to the symmetry axis :math:`f_\parallel`
+#. FWHM of the Gaussian :math:`\sigma`
+
+| The height of the peak is :math:`\sim`\ 1. 
+| The functional form is given by
+
+.. math::
+    A(f)= I_{\mathrm ax}(f)\circledast\left( e^{-\frac{4\ln 2 (f-f_0)^2}{ \sigma^2}} \right)
+
+with :math:`I_{\mathrm ax}(f)` defined :ref:`above <Iax>`.
+
+  
+
+.. index:: PowderLineAsymLor
+
+
+**Powder average of an anisotropic interaction convoluted with a Lorentzian**
+
+::
+
+  userFcn  libLineProfile PowderLineAsymLor 1 2 3 4
+
+The parameters are:
+
+#.   :math:`f_1`
+#.   :math:`f_1`
+#.   :math:`f_3` frequencies along the principal axes
+#. FWHM of the Lorentzian :math:`w`
+
+| The height of the peak is :math:`\sim`\ 1. 
+| The functional form is given by
+
+.. math::
+    A(f)= I(f)\circledast\left( \frac{w^2}{4f^2+w^2} \right)
+
+with :math:`I(f)` defined :ref:`above <Ianiso>`. Note that :math:`f_1<f_2<f_3` is not required by the code.
+  
+    
+    
+.. index:: PowderLineAsymGss
+
+
+**Powder average of an anisotropic interaction convoluted with a Gaussian**
+
+::
+
+  userFcn  libLineProfile PowderLineAsymGss 1 2 3 4
+
+The parameters are:
+
+#.   :math:`f_1`
+#.   :math:`f_1`
+#.   :math:`f_3` frequencies along the principal axes
+#. FWHM of the Gaussian :math:`\sigma`
+
+| The height of the peak is :math:`\sim`\ 1. 
+| The functional form is given by
+
+.. math::
+    A(f)= I(f)\circledast\left( e^{-\frac{4\ln 2 (f-f_0)^2}{ \sigma^2}} \right)
+
+with :math:`I(f)` defined :ref:`above <Ianiso>`. Note that :math:`f_1<f_2<f_3` is not required by the code.
+
+
+
diff --git a/doc/html/_sources/user-manual.txt b/doc/html/_sources/user-manual.txt
new file mode 100644
index 00000000..75e2e0b0
--- /dev/null
+++ b/doc/html/_sources/user-manual.txt
@@ -0,0 +1,2421 @@
+:tocdepth: 3
+
+.. include:: <isogrk1.txt>
+.. index:: user-manual
+
+.. _user-manual:
+
+User manual
+===========
+
+Introduction
+------------
+
+``musrfit`` is a software tool for analyzing time-differential |mgr|\SR data. The program suite is `free software <http://www.gnu.org/philosophy/free-sw.html>`_ and licensed under the `GNU GPL version 2 <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>`_ or any later version (at your option). It is implemented in ``C++``/ROOT and uses the `MINUIT2 <http://seal.web.cern.ch/seal/MathLibs/Minuit2/html/index.html>`_ libraries developed at `CERN <http://www.cern.ch/>`_ for fitting data. Installation instructions for GNU/Linux, MS Windows, and macOS can be found under :ref:`musrfit setup <musrfit-setup>`. Recent changes of the program can be followed on the git, either `bitbucket <https://bitbucket.org/muonspin/musrfit>`_ or `gitlab <https://gitlab.psi.ch/nemu/musrfit>`_.
+
+Available Executables, Configuration Files and their Basic Usage
+----------------------------------------------------------------
+
+The philosophy is that users, based on their abilities or preferences, can work on the command line are in a more GUI based setting. Here, the command line based tools will be described. The GUI based parts are described in the :ref:`musredit <musredit-sec>`.
+
+.. index:: musrfit
+.. _musrfit:
+
+musrfit
++++++++
+
+``musrfit`` is the actual fitting program. It defines the FCN routine passed to ``MINUIT2`` and performs :math:`\chi^2` or log-max-likelihood fitting. If called from within a shell it accepts several parameters: 
+
+**<msr-file>**
+   filename of the msr input file defining all the details needed for performing a fit to a specified set of data. This is the only mandatory parameter.
+**-k, - -keep-mn2-output**
+   selects the option for keeping the output of ``MINUIT2`` including the correlation coefficients between different parameters and renaming the files ``MINUIT2.OUTPUT`` and ``MINUIT2.root`` to ``<msr_file_without_extension>-mn2.output`` and ``<msr_file_without_extension>-mn2.root``, respectively, *e.g.* ``<msr_file>`` = ``8472.msr`` will result in ``8472-mn2.output``, ``8472-mn2.root``.
+**-c, - -chisq-only**
+   Instead of fitting the model, ``musrfit`` calculates :math:`\chi^2` or max. log-likelihood, maxLH, only once and sends the result to the standard output if called with this option. This is *e.g.* useful for the adjustment of the initial values of the fit parameters. 
+**-t, - -title-from-data-file**   
+   If this option is given ``musrfit`` will replace the title in the ``<msr_file>`` by the run title in the data file of the first run appearing in a RUN block. In case there is no run title in the data file no substitution is done. 
+**-e, - -estimateN0**   
+   estimate :math:`N_0` for single histogram fits.
+**-p, - -per-run-block-chisq** 
+   will write per run block chisq/maxLH into the msr-file.
+**- -dump <type>**   
+   is writing a data file with the fit data and the theory; <type> can be ascii (data in columns) or root (data in ROOT histograms).
+**- -timeout <timeout_tag>**   
+   overwrites the predefined timeout of 3600 sec. <timeout_tag> :math:`\leq` 0 means the timeout facility is not enabled. <timeout_tag> > 0, *e.g.* ``nn`` will set the timeout to ``nn`` (sec). If during a fit this timeout is reached, ``musrfit`` will terminate. This is used to prevent orphan ``musrfit`` processes to jam the system. 
+**- -help**
+   displays a small help notice in the shell explaining the basic usage of the program.
+**- -version**   
+   prints the version number of ``musrfit``
+
+If called with a msr input file, *e.g.*
+
+.. code-block:: bash
+
+   $ musrfit 8472.msr
+   
+the fit described in the input file will be executed and the results will be written to a mlog output file, in the example ``8472.mlog``. When the fitting has terminated the msr file and the mlog file are swapped, so that the resultant parameter values can be found in the msr file and the mlog file contains a copy of the input file. The format of the mlog file is the same as that of the msr file. For a detailed description of the msr file format refer to the :ref:`corresponding section <msr-file-format>`.   
+
+Another example: 
+
+.. code-block:: bash
+
+   $ musrfit -c -e 8472_tf_histo.msr
+
+This will calculate the chisq/maxLH of the run 8472 after estimating the :math:`N_0`. 
+
+.. index:: musrview
+.. _musrview:
+
+musrview
+++++++++
+
+``musrview`` is an interactive graphical user interface for the presentation of the analyzed data and the corresponding fits. If called from within a shell it accepts the following parameters: 
+
+**<msr_file>** 
+  name of the msr input or output file to be displayed. This is the only mandatory parameter.
+**- -help**
+  displays a small help notice in the shell explaining the basic usage of the program.
+**- -version**  
+  prints the version number of ``musrview``.
+**-f, - -fourier**  
+  will directly present the Fourier transform of the <msr_file> with Fourier options as defined in the <msr_file>. 
+**-a, - -avg**  
+  will directly present the averaged data/Fourier of the <msr_file>. 
+**-1, - -one_to_one**
+  calculate the theory points *only* at the data points.
+**- -<graphic_format_extension>**
+  will produce a graphics output file without starting a ROOT session. The filename is based on the name of the <msr_file>, *e.g.* 8472.msr will result in 8472_0.png.
+  Supported values for ``<graphic_format_extension>`` are *eps*, *pdf*, *gif*, *jpg*, *png*, *svg*, *xpm*, and, *root*.
+**- -ascii**  
+  will generate an ascii dump of the data and theory as plotted. 
+**- -timeout <timeout>**
+  <timeout> given in seconds after which ``musrview`` terminates. If <timeout> :math:`\leq` 0, no timeout will take place. Default for <timeout> is 0. 
+  
+If called with a msr file and the ``--<graphic_format_extension>`` option, *e.g.* :: 
+
+   $ musrview 8472.msr --jpg
+
+for each PLOT block in the the msr file a file ``8472_X.jpg`` is produced where ``X`` counts the PLOT blocks starting from zero. 
+
+If called only with a msr file, *e.g.*
+
+.. code-block:: bash
+
+   $ musrview 8472.msr
+
+a ROOT canvas is drawn; it contains all experimental data and fits specified in the PLOT block of the msr file. For a description of the various plotting types refer to the :ref:`corresponding section <msr-file-format>`.
+
+Another example: 
+
+.. code-block:: bash
+
+   $ musrview 8472_tf_histo.msr -f -a
+
+will show the averaged Fourier transform of the data of run 8472.    
+
+Within the drawn canvas all standard actions applicable to ROOT canvases might be performed. In the menu bar the Musrfit menu can be found. From there some musrfit-specific actions might be taken: 
+
+**Fourier**
+  performs the Fourier transformation of the *selected data* and shows the result.
+**Difference**  
+  shows the difference between the selected data and the fit.
+**Average**
+  toggle between the current view and the averaged data view. Useful if the averaged Fourier power spectrum of lots of detectors shall be shown. 
+**Export Data**  
+  saves the selected data in a simple multi-column ASCII file.
+  
+.. index:: musrview-key-shortcuts
+
+musrview key-shortcuts
+^^^^^^^^^^^^^^^^^^^^^^
+
+Additionally, some functions can be accessed using *key-shortcuts*: 
+
+**q**
+  quits musrview.
+**d**
+  shows the difference between the selected data and the fit.
+**f**
+  performs the Fourier transformation of the selected data and shows the result.
+**a**
+  show the average of the presented data, *e.g.* the averaged Fourier power spectra of various detectors.
+**u**
+  reset the plotting range to the area given in the msr file ("un-zoom").
+**c**  
+  toggles between normal and cross-hair cursor.
+**t**
+  a plot of a **single** data set allows to toggle the color of the theory function line.
+    
+  
+.. index:: musrFT
+.. _musrFT:
+
+musrFT
+++++++
+
+``musrFT`` is an interactive graphical user interface for the presentation of Fourier transforms of *raw* |mgr|\SR histograms. It's purpose is to get a quick overview for high TF-field data, as found *e.g.* at the HAL-9500 instrument at PSI. It Fourier transforms the raw histogram data, i.e. :math:`N(t)` rather than :math:`A(t)`, and hence shows the lifetime contribution of the muon decay. This is no problem for large enough fields, but will be a *severe* problem at very low fields. ``musrFT`` is still in its early stage and should be considered a beta-version. 
+
+If called from within a shell it accepts the following parameters:
+
+**Input Files**
+  **<msr_files>**
+    msr-file name(s). These msr-files are used for the Fourier transform. It can be a list of msr-files, *e.g.* ``musrFT 3110.msr 3111.msr``
+  **-df, - -data-file <data-file>**
+    This allows to feed only |mgr|\SR data file(s) to perform the Fourier transform. Since the extended <msr-file> information are missing, they will need to be provided by to options, or ``musrFT`` tries to guess, based on :ref:`musrfit_startup.xml <musrfit-startup>` settings.
+**Options**
+  **- -help**
+    display a help and exit.
+  **- -version** 
+    output version information and exit.
+  **-g, - -graphic-format <graphic-format-extension>** 
+    will produce a graphic-output-file without starting a root session. The name is based either on the <msr-file> or the <data-file>, *e.g.* ``3310.msr -> 3310_0.png``. Supported graphic-format-extension: *eps*, *pdf*, *gif*, *jpg*, *png*, *svg*, *xpm*, and *root*. 
+  **- -dump <fln>**    
+    rather than starting a root session and showing Fourier graphs of the data, it will output the Fourier data in an ascii file <fln>. 
+  **-br, - -background-range <start> <end>**
+    background interval used to estimate the background to be subtracted before the Fourier transform. <start>, <end> to be given in bins. 
+  **-bg, - -background**
+    gives the background explicit for each histogram. 
+  **-fo, - -fourier-option <fopt>**
+    <fopt> can be '*real*', '*imag*', '*real+imag*', '*power*', or '*phase*'. If this is not defined (neither on the command line nor in the :ref:`musrfit_startup.xml <musrfit-startup>`) '*power*' will be used. 
+  **-ap, - -apodization <val>**
+    <val> can be either '*none*', '*weak*', '*medium*', '*strong*'. Default will be '*none*'.
+  **-fp, - -fourier-power <N>**
+    <N> being the Fourier power, i.e. ``2^<N>`` used for zero padding. Default is -1, i.e. *no* zero padding will be performed. 
+  **-u, - -units <units>**
+    <units> is used to define the abscissa of the Fourier transform. One may choose between the fields (*Gauss*) or (*Tesla*), the frequency (*MHz*), and the angular-frequency domain (*Mc/s*). Default will be '*MHz*'.
+  **-ph, - -phase <val>**    
+    defines the initial phase <val>. This only is of concern for '*real*', '*imag*', and '*real+imag*'. Default will be 0.0.
+  **-fr, - -fourier-range <start> <end>**    
+    Fourier range. <start>, <end> are interpreted in the units given. Default will be -1.0 for both which means, take the full Fourier range. 
+  **-tr, - -time-range <start> <end>**     
+    time domain range to be used for Fourier transform. <start>, <end> are to be given in (|mgr|\s). If nothing is provided, the full time range found in the data file(s) will be used.
+  **- -histo <list>**
+    give the <list> of histograms to be used for the Fourier transform. *E.g.* ``musrFT -df lem15_his_01234.root --histo 1 3``, will only be needed together with the option ``--data-file``. If multiple data files are given, <list> will apply to all data-files given. If ``--histo`` is not given, *all* histos of a data file will be used. <list> can be anything like: 2 3 6, or 2-17, or 1-6 9, etc. 
+  **-a, - -average**    
+    show the average of all **ALL** Fourier transformed data. 
+  **-ad, - -average-per-data-set**
+    show the average of **per-data-set** Fourier transformed data. 
+  **- -t0 <list>**    
+    A list of t0's can be provided. This in conjunction with ``--data-file`` and ``--fourier-option real`` allows to get the proper initial phase if t0's are known. If a single t0 for multiple histos is given, it is assume, that this t0 is common to *all* histos. Example: ``musrFT -df lem15_his_01234.root -fo real --t0 2750 --histo 1 3``. 
+  **-pa, - -packing <N>**
+    if <N> (an integer), the time domain data will first be packed/rebinned by <N>. 
+  **- -title <title>**
+    give a global title for the plot. 
+  **- -create-msr-file <fln>** 
+    creates a msr-file based on the command line options provided. This will help on the way to a full fitting model.
+  **-lc, - -lifetimecorrection <fudge>**
+    try to eliminate the muon life time decay. Only makes sense for low transverse fields. <fudge> is a tweaking factor (scaling factor for the estimated t0) and should be kept around 1.0. 
+  **- -timeout <timeout>**
+    <timeout> given in seconds after which ``musrFT`` terminates. If <timeout> :math:`\leq` 0, no timeout will take place. Default <timeout> is 3600 sec. 
+    
+**Example 1**
+  
+.. code-block:: bash
+  
+  $ musrFT -df tdc_hifi_2014_00153.mdu --title "MnSi" -tr 0 10 -fr 7.0 7.6 -u Tesla --histo 2-17 -a
+    
+will take time range from t=0..10 |mgr|\s, will show the Fourier transform in units of Tesla from B=7.0..7.6 Tesla of the detectors 2-17. Rather than showing the 16 individual Fourier transforms, the average of all Fourier spectra will be shown. t0's will be guessed by the maximum of the time domain histogram (assuming a prompt peak!!).
+
+**Example 2**
+
+.. code-block:: bash
+
+  $ musrFT -df tdc_hifi_2014_00153.mdu -tr 0 10 -fr 7.0 7.6 -u Tesla --histo 2-17 --title "MnSi average, T=50K, B=7.5T" -a -g pdf
+  
+as **Example 1** but rather than showing an interactive GUI, the output will be dumped into a pdf-file. The file name will be ``tdc_hifi_2014_00153.pdf``.   
+
+**Example 3**
+
+.. code-block:: bash
+
+  $ musrFT -df tdc_hifi_2014_00153.mdu -tr 0 10 -fr 7.0 7.6 -u Tesla --histo 2-17 --title "MnSi average, T=50K, B=7.5T" -a --dump MnSi.dat
+
+as **Example 1** but rather than showing an interactive GUI, the output will be dumped into the ascii file ``MnSi.dat``. 
+
+Within the drawn canvas all standard actions applicable to ROOT canvases might be performed. In the menu bar the ``MusrFT`` menu can be found. From there some ``musrFT``-specific actions might be taken
+
+**Fourier** 
+  allows to switch between different Fourier transform representations '*Power*', '*Real*', ... 
+**Average**
+  toggle between the current view and the averaged data view. 
+**Average per Data Set**
+  toggle between the current view and the per data set average view. 
+**Export Data**
+  saves the selected data in a simple multi-column ASCII file.
+  
+.. index:: musrFT-key-shortcuts
+
+musrFT key-shortcuts
+^^^^^^^^^^^^^^^^^^^^
+
+Additionally, some functions can be accessed using key-shortcuts: 
+
+**q**
+  quits musrFT.
+**a**
+  toggle between average of the presented data and single Fourier histos, *e.g.* the averaged Fourier power spectra of various detectors. 
+**d**
+  toggle between average per data set and single Fourier histos, *e.g.* the averaged Fourier power spectra of various detectors for the different data sets given. 
+**u**
+  reset the plotting range to the area given in the msr-file or the form the command line ("unzoom").
+**c**
+  toggles between normal and crosshair cursor. 
+
+.. index:: musrt0
+.. _musrt0:
+
+musrt0
+++++++
+
+``musrt0`` is a user interface allowing to determine t0 and the time windows of data and background needed to be specified in the RUN blocks of the msr file. It can be operated either as an interactive program or in a non-interactive mode. In the non-interactive mode it accepts the following parameters: 
+
+**<msr_file>**
+  name of an msr file. 
+**-g, - -getT0FromPromptPeak [<firstGoodBinOffset>]**
+  tries to estimate t0 from the prompt peak (maximum entry) in each histogram and writes the corresponding values to the t0 lines in the :ref:`RUN blocks <msr-run-block>` of the msr file. If an optional number <firstGoodBinOffset> is given, the lower limit of the data range will be set to t0 + <firstGoodBinOffset>. 
+**- -timeout <timeout>**
+  <timeout> given in seconds after which musrview terminates. If <timeout> :math:`\leq` 0, no timeout will take place. Default for <timeout> is 0. 
+**- -help**
+  displays a small help notice in the shell explaining the basic usage of the program. 
+**- -version**
+  prints the version number of musrt0. 
+
+The interactive mode of ``musrt0`` is started if the program is called with a sole msr-file argument, *e.g.*   
+
+.. code-block:: bash
+
+  $ musrt0 8472.msr
+  
+Then a ROOT canvas depicting the histogram of the data set mentioned first in the :ref:`RUN blocks <msr-run-block>` block is drawn in different colors:
+
+.. image:: ../images/musrt0.* 
+
+The colors of the data points represent the choice of the time windows of data (blue) and background (red), as well as t0 (green line). In order to change these ranges the mouse cross-hair is moved to a channel of choice and one of the following keys is pressed: 
+
+
+**q**
+  close the currently open histogram and opens the next (see also below) .
+**Q**
+  quit ``musrt0`` without writing into the msr file. 
+**z**
+  zoom into the region about the t0. 
+**u**
+  unzoom to the full range.
+**t**
+  set t0 bin position. 
+**T**
+  automatically set t0, *i.e.* jump to the maximum of the histogram. 
+**b**
+  set the lower limit of the background range bin. 
+**B**
+  set the upper limit of the background range bin. 
+**d**
+  set the lower limit of the data range bin. 
+**D**
+  set the upper limit of the data range bin. 
+
+When all channels have been set correctly for the first histogram, pressing of the key **q** opens the subsequent histogram listed in a :ref:`RUN block <msr-run-block>` and the respective channels can be updated there. This procedure is repeated until all histograms given in the RUN blocks are processed.
+
+Using the key **Q**, ``musrt0`` can be interrupted. No changes to the msr file are applied in this case.
+
+Closing a window by clicking the X button (close icon) is equivalent to pressing **Q**, *i.e.* ``musrt0`` is simply terminated. 
+  
+
+.. index:: msr2msr
+
+msr2msr
++++++++
+
+``msr2msr`` is a small utility for converting existing WKM msr files into musrfit msr files. It accepts the following parameters: 
+
+
+**<msr_file_in>**
+  input WKM msr file (mandatory first parameter). 
+**<msr_file_out>**
+  converted output musrfit msr file (mandatory second parameter). 
+**- -help**
+  displays a small help notice in the shell explaining the basic usage of the program. 
+
+A typical example then looks like: 
+
+.. code-block:: bash
+
+  $ msr2msr 8472-WKM.msr 8472-musrfit.msr
+  
+If the input file has already the ``musrfit`` msr file structure, the output file will be just a copy of the input file.   
+
+msr2data
+++++++++
+
+For details concerning ``msr2data`` see the section :ref:`msr2data <msr2data>`.
+
+.. index:: any2many
+.. _any2many:
+
+any2many
+++++++++
+
+``any2many`` is a |mgr|\SR data file converter. Currently different facilities (PSI, TRIUMF, ISIS, J-PARC) are saving their |mgr|\SR data files in different formats, or even worse some instruments are using other |mgr|\SR data formats than others. The aim of ``any2many`` is that these files can be converted into each other. Of course only a subset of header information can be converted. 
+
+Currently ``any2many`` can convert the following |mgr|\SR data file formats:
+
+**input formats** 
+  *MusrRoot*, *PSI-BIN* (PSI bulk), *ROOT* (PSI LEM), *MUD* (TRIUMF), *NeXus* IDF1 and *NeXus* IDF2 (ISIS), *PSI-MDU* (PSI bulk internal only), *WKM* (outdated ascii file format).
+**output formats** 
+  *MusrRoot*, *PSI-BIN*, *ROOT*, *MUD*, *NeXus1-HDF4*, *NeXus1-HDF5*, *NeXus1-XML*, *NeXus2-HDF4*, *NeXus2-HDF5*, *NeXus2-XML*, *WKM*, *ASCII*
+
+Since the goal was to create a very flexible converter tool, it has ample of options which will listed below, followed by many examples showing how to use it. The options:   
+  
+**-f <filenameList-input>**
+  where <filenameList-input> is a space separated list of file names (not starting with a '-'), *e.g.* ``2010/lem10_his_0111.root 2010/lem10_his_0113.root``.  
+**-o <outputFileName>**
+  this option allows to given an output-file-name for the converted file. This option only makes sense if <filenameList-input> is a single input-file-name!   
+**-r <runList-input>**
+  where <runList-input> is a list of run numbers separated by spaces of the form: <run1> <run2> <run3> etc., or a sequence of runs <runStart>-<runEnd>, *e.g.* 111-123. This option cannot be combined with -f and vice versa.  
+**-t <in-template> <out-template>**
+  where <in-/out-template> are templates to generate real file names from run numbers. The following template tags can be used: ``[yy]`` for year, and ``[rrrr]`` for the run number. If the run number tag is used, the number of 'r' will give the number of digits used with leading zeros, *e.g.* ``[rrrrrr]`` and run 123 will result in 000123. Similarly ``[yyyy]`` will result in something like 1999, whereas ``[yy]`` into something like 99. For more details best check the examples below. 
+**-c <in-Format> <out-Format>**
+  this is used to tell ``any2many`` what is the input-file-format and into which output-file-format the data shall be converted. The possible input-/output-file-formats are listed above.
+**-h**
+  This option is for MusrRoot input files only! Select the the histo groups to be exported. is a space separated list of the histo group, *e.g.* ``-h 0, 20`` will try to export the histo 0 (NPP) and 20 (PPC). A histo-group is defined via the RedGreen offset in the MusrRoot file format. It is used *e.g.* in red/green mode measurements. If this option is omitted in a conversion from MusrRoot to something, the first group will be exported only!   
+**-p <output-path>**
+  where <output-path> is the output path for the converted files. If no <output-path> is given, the current directory will be used, unless the option **-s** is used. 
+**-y <year>**
+  here a <year> in the form ``yy`` or ``yyyy`` can be given. If this is the case, any automatic file name generation which needs a year will use this given one. 
+**-s**
+  with this option the output data file will be sent to the stdout. It is intended to be used together with web applications.    
+**-rebin <n>**
+  where <n> is the number of bins to be packed/rebinned.   
+**-z [g|b] <compressed>**
+  where <compressed> is the output file name (without extension) of the compressed data collection, and 'g' will result in ``.tar.gz``, and 'b' in ``.tar.bz2`` files.  
+**--help**
+  displays a help notice in the shell explaining the basic usage of the program. 
+**--version**
+  shows the current version of ``any2many``. 
+
+If the template option `-t` is absent, the output file name will be generated according to the input data file name (not possible with <runList-input>), and the output data format.
+
+Here now a couple of examples which should help to understand the switches.   
+  
+.. code-block:: bash
+
+  $ any2many -f 2010/lem10_his_0123.root -c ROOT ASCII -rebin 25
+
+Will take the *LEM ROOT* file ``2010/lem10_his_0123.root`` rebin it by 25 and convert it to *ASCII*. The output file name will be ``lem10_his_0123.ascii``, and the file will be saved in the current directory. The data in ``lem10_his_0123.ascii`` are written in columns. 
+
+.. code-block:: bash
+
+  $ any2many -f 2010/lem10_his_0123.root -c ROOT NEXUS2-HDF5 -o 2010/lem10_his_0123_v2.nxs
+  
+Will take the *LEM ROOT* file ``2010/lem10_his_0123.root`` and convert it to *NeXus* IDF V2. The output file name will be ``lem10_his_0123_v2.nxs``, and will be saved in the current directory.  
+
+.. code-block:: bash
+
+  $ any2many -r 123 137 -c PSI-BIN MUD -t d[yyyy]/deltat_tdc_gps_[rrrr].bin [rrrrrr].msr -y 2001
+
+Will take the run 123 and 137, will generate the input file names: ``d2001/deltat_tdc_gps_0123.bin`` and ``d2001/deltat_tdc_gps_0137.bin``, read these files, and convert them to the output files with names ``000123.msr` and `000137.msr``, respectively.   
+
+.. code-block:: bash
+
+  $ any2many -r 100-117 -c PSI-MDU ASCII -t d[yyyy]/deltat_tdc_alc_[rrrr].mdu [rrr].ascii -y 2011 -s
+  
+Will take the runs 100 through 117 and convert the *PSI-MDU* input files to *ASCII* output and instead of saving them into a file, they will be spit to the standard output. 
+
+.. code-block:: bash
+
+  $ any2many -r 100-117 -c NEXUS ROOT -t d[yyyy]/psi_gps_[rrrr].NXS psi_[yyyy]_gps_[rrrr].root -z b psi_gps_run_100to117
+
+Will take the runs 100 through 117 and convert the *NeXus* input files to *ROOT* output. Afterwards these new files will be collected in a compressed archive ``psi_gps_run_100to117.tar.bz2``.   
+  
+.. code-block:: bash
+
+  $ any2many -f 2010/lem10_his_0123.root 2010/lem10_his_0012.root -c ROOT ROOT -rebin 25  
+  
+Will read the two files ``2010/lem10_his_0123.root`` and ``2010/lem10_his_0012.root``, rebin them with 25 and export them as *LEM ROOT* files with adding rebin25 to the name, *e.g.* ``2010/lem10_his_0123_rebin25.root``. 
+
+.. index:: dump_header
+
+dump_header
++++++++++++
+
+``dump_header`` is a little program which tries to read a |mgr|\SR data file and sends the relevant information (required header info, start of the histos, etc.) to the standard output. Currently the following |mgr|\SR data file formats are supported: *MusrROOT*, *ROOT* (old LEM format), *PSI-BIN*, *PSI-MDU*, *NeXus* (IDF1 and IDF2), *MUD*, and *WKM*. 
+
+
+**-rn, - -runNo <runNo>**
+  run number of the header to be dumped. 
+**-fn, - -fileName <fileName>**
+  muSR data file name. 
+**-ff, - -fileFormat <fileFormat>**
+  where <fileFormat> is one of the above listed ones. 
+**-y, - -year <year>**
+  <year> has to be a 4 digit value, *e.g.* 2005, if provided it is used to generate the file name for the given <runNo>, otherwise the current year is used. If a file name is given, this option has no effect. 
+**-s, --summary**
+  this option is used for LE-|mgr|\SR data sets only. It will, additionally to the header information, print the summary file content. 
+**--psi-bulk <opt>**
+  where <opt> consists of two items: (i) pta or tdc, (ii) the instrument name, *i.e.* gps, ltf, dolly, gpd, or hifi. This is needed in combination with the file formats *PSI-BIN* and *PSI-MDU* when providing a run number. 
+**-h, --help**
+  will show a short help. 
+**-v, --version**
+  will print the current version. 
+  
+Examples:   
+
+.. code-block:: bash
+
+  $ dump_header -fn tdc_hifi_2015_00123.mdu -y 2015
+
+will dump the header information for the run 123 of the HAL-9500 instrument of the year 2015.   
+  
+.. code-block:: bash
+
+  $ dump_header -rn 123 -ff PSI-MDU --psi-bulk tdc hifi -y 2015
+  
+the same as the previous example, except that the file name is constructed via the number and the additionally provided information.   
+
+.. code-block:: bash
+
+  $ dump_header -rn 3456 -s
+  
+Will dump the LEM header information of run 3456 including the content of the run summary file.   
+
+.. _Pearson's: http://en.wikipedia.org/wiki/Pearson's_chi-square_test
+.. index:: musrfit-startup
+.. _musrfit-startup:
+
+musrfit_startup.xml
++++++++++++++++++++
+
+``musrfit_startup.xml`` is a configuration file located at ``$HOME\.musrfit``. In this file the following XML tags are allowed to define settings:
+
+**<data_path>PATH_TO_DATA</data_path>**
+  add the new path ``PATH_TO_DATA`` where ``musrfit`` and ``musrview`` will search for data files. 
+**<write_per_run_block_chisq>y/n</write_per_run_block_chisq>**
+  if enabled :math:`\chi^2` for each :ref:`RUN block <msr-run-block>` will be written to the :ref:`STATISTIC block <msr-statistic-block>` of the resulting msr file. Additionally, 
+  in case a :math:`\chi^2` single-histogram fit is done, also `Pearson's`_ :math:`\chi^2` will be added. 
+**<fourier_settings></fourier_settings>**
+  set the default parameters for the Fourier transform in ``musrview``. For further details refer to the description of the :ref:`FOURIER block <msr-fourier-block>` in the msr file.
+  
+  **<units>UNITS</units>**
+    specify the units of the frequency or field-domain. Valid units are *Gauss*, *MHz* and *Mc/s* (inside a <fourier_settings> environment). 
+  **<fourier_power>n</fourier_power>**
+    specify the number of points :math:`2^n (n < 21)` to be used for the Fourier transform (inside a <fourier_settings> environment).
+  **<apodization>APOD</apodization>**
+    set the default apodization method. Valid apodizations are *none*, *weak*, *medium*, and *strong* (inside a <fourier_settings> environment). 
+  **<plot>PLOT</plot>**
+    specify which part of the Fourier transform is plotted by default. You can choose between *real*, *imag*, *real_and_imag*, *power*, and *phase* (inside a <fourier_settings> environment).   
+  **<phase>PH</phase>**
+    set the initial phase shift PH (in degrees) of the data to be Fourier transformed (inside a <fourier_settings> environment).  
+  **<phase_increment>PHINCR</phase_increment>**
+    change the default value of the phase increment (in degrees) used for the phase optimization to PHINCR (inside a <fourier_settings> environment).
+
+**<root_settings></root_settings>**
+  change the default ROOT settings.    
+  
+  **<marker_list></marker_list>**
+    specify the order in which ``musrview`` should use markers when plotting data (inside a <root_settings> environment). 
+    
+    **<marker>X</marker>**
+      use the ROOT marker number X (inside a <marker_list> environment). 
+    
+  **<color_list></color_list>**
+    specify the order in which ``musrview`` should use colors when plotting data (inside a <root_settings> environment).
+    
+    **<color>R,G,B</color>**
+      use the RGB coded color (inside a <color_list> environment). 
+
+An example would look like:
+
+.. code-block:: xml
+
+   <?xml version="1.0" encoding="UTF-8"?>
+   <musrfit xmlns="https://intranet.psi.ch/MUSR/MusrFit">
+       <data_path>/mnt/data/nemu/his</data_path>
+       <write_per_run_block_chisq>y</write_per_run_block_chisq>
+       <fourier_settings>
+           <units>Gauss</units>
+           <fourier_power>0</fourier_power>
+           <apodization>none</apodization>
+           <plot>real_and_imag</plot>
+           <phase>0.0</phase>
+           <phase_increment>1.0</phase_increment>
+       </fourier_settings>
+       <root_settings>
+           <marker_list>
+               <!-- Root marker numbers -->
+               <marker>24</marker>
+               <marker>25</marker>
+               <marker>26</marker>
+               <marker>27</marker>
+           </marker_list>
+           <color_list>
+               <!-- Color as RGB coded string -->
+               <color>0,0,0</color>
+               <color>255,0,0</color>
+               <color>0,255,0</color>
+               <color>0,0,255</color>
+           </color_list>
+       </root_settings>
+   </musrfit>
+      
+.. index:: msr-file-format
+.. _msr-file-format:
+
+Description of the msr File Format
+----------------------------------
+
+The programs are using an input file to control their action. This input file has the extension ``.msr`` (msr file). The msr file is built up from different blocks. Each block starts with a keyword and is, with the exception of the title, terminated by an empty line. Comments start with the character ``#``. The various input blocks are described below.
+
+.. index:: msr-title-block
+.. _msr-title-block:
+
+The Title
++++++++++
+
+The first line of the msr file is the title line. Unlike all the other input blocks, it does not start with a block keyword. It is just a simple text line, in which any information can be placed. The title text will be used in the graphical representation of the data as a headline. 
+
+.. index:: msr-fitparameter-block
+.. _msr-fitparameter-block:
+
+The FITPARAMETER Block 
+++++++++++++++++++++++
+
+The FITPARAMETER block is used to define the fit parameters in a MINUIT typical style. There are various possible parameter definitions which are listed here: ::
+
+   1. <no> <name> <value> <step>
+   2. <no> <name> <value> <step> <lower_boundary> <upper_boundary>
+   3. <no> <name> <value> <step> <pos_error> <lower_boundary> <upper_boundary>
+
+where <no> is the parameter number, <name> is the parameter name [#f1]_, <value> is the initial guess of the parameter, <step> the inital step width, <lower/upper_boundary> is the lower/upper boundary for the parameter [#f2]_.    
+
+In the output file, <value> will be the MINUIT fit value, <step> will contain the error estimate (or the negative error estimate if MINOS was successfully used), <pos_error> will have the value *none* if MINOS has not been used, otherwise it will show the positive error estimate. 
+
+A typical example looks like this: ::
+
+   FITPARAMETER
+   #       No   Name      Value     Step       Pos_Error    Boundaries
+           1   alpha     1          0.02       none         0       1.8
+           2   asy       0.1042     0.004713   none         0       0.33
+           3   phase     15         1.0        none
+           4   freq      0.9        0.0379     none
+           5   rate      0.03       0.00579    none
+           
+There is also the possibility to constrain the parameters to semi-defined intervals (like par > a or par < b). The syntax is as follows: ::
+
+   FITPARAMETER
+   #       No   Name      Value     Step       Pos_Error    Boundaries
+   # Specify only a lower boundary for the parameter
+           1   Asy1      0.04501   -0.00208    0.00211      0       none
+
+   # Specify only an upper boundary for the parameter
+           2   Rate1     0.14245   -0.02501    0.02279      none    10
+
+   # Specify lower and upper boundaries for the parameter
+           3   Asy2      0.14501   -0.00208    0.00211      0       0.33
+
+   # Do not specify boundaries at all
+           4   Field2    343.212   -2.27960    2.27885      
+           5   Rate2     0.42045   -0.02501    0.02279      none    none
+
+           
+.. rubric:: Notes
+
+.. [#f1] A standard string without whitespace. 
+.. [#f2] According to the MINUIT manual this should be avoided whenever possible! 
+
+
+.. index:: msr-theory-block
+.. _msr-theory-block:
+
+The THEORY Block
+++++++++++++++++
+
+The THEORY block is used to define the fit function. There is a set of predefined functions available. It is also possible to use externally defined functions. How to use them will be explained afterwards, here only the predefined functions are described. 
+
+============ ======= =============================================== ============================================================================================================================================================================================================================================================ ======
+name         abbr.   parameters                                      mathematical expression                                                                                                                                                                                                                                      notes
+============ ======= =============================================== ============================================================================================================================================================================================================================================================ ======
+const        c       const(1)                                        const
+asymmetry    a       A(1)                                            :math:`A`
+simplExpo    se      :math:`\lambda (\mu \mathrm{s}^{-1})`           :math:`\exp(-\lambda t)`
+generExpo    ge      :math:`\lambda (\mu \mathrm{s}^{-1}) \beta(1)`  :math:`\exp\left[-(\lambda t)^\beta\right]`
+simpleGss    sg      :math:`\sigma (\mu \mathrm{s}^{-1})`            :math:`\exp\left[-\frac{1}{2} (\sigma t)^2\right]`
+statGssKT    stg     :math:`\sigma (\mu \mathrm{s}^{-1})`            :math:`\frac{1}{3} + \frac{2}{3} \left[ 1 - (\sigma t)^2\right] \exp\left[-\frac{1}{2} (\sigma t)^2\right]`
+statGssKTLF  sgktlf  :math:`\nu` (MHz), \                            :math:`G_{\rm G}^{\rm LF}(t) = 1-\frac{2\sigma^2}{(2\pi\nu)^2} \left[ 1-\exp\left(- \frac{1}{2}\sigma^2t^2\right)\cos(2\pi\nu t)\right]`                                                                                                                     [#n1]_
+                     :math:`\sigma (\mu \mathrm{s}^{-1})`               :math:`+ \frac{2\sigma^4}{(2\pi\nu)^3} \int_0^t \exp\left(- \frac{1}{2}\sigma^2\tau^2\right) \sigma(2\pi\nu\tau) d\tau`
+dynGssKTLF   dgktlf  :math:`\nu` (MHz), \               
+                     :math:`\sigma (\mu \mathrm{s}^{-1})`, \         :math:`\frac{1}{2\pi i} \int_{\gamma+i\infty}^{\gamma-i\infty} \frac{f_{\rm G}(s+\Gamma)}{1-\Gamma f_{\rm G}(s+\Gamma)} \exp(s t) ds`,                                                                                                                       [#n2]_                                              
+                     :math:`\Gamma` (MHz)                               where :math:`f_{\rm G}(s) = \int_0^\infty G_{\rm G}^{\rm LF}(t) \exp(-s t) dt`
+statExpKT    sekt    :math:`\lambda (\mu \mathrm{s}^{-1})`           :math:`\frac{1}{3} + \frac{2}{3} \left[ 1 - \lambda t\right] \exp(-\lambda t)`                                                                                                                                                                               [#n3]_
+statExpKTLF  sektlf  :math:`\nu` (MHz), \                            :math:`1 - \frac{a}{2\pi\nu} j_1(2\pi\nu t) \exp(-a t)`                                                                                                                                                                                                      [#n4]_
+                     :math:`a (\mu \mathrm{s}^{-1})`                   :math:`- \left(\frac{a}{2\pi\nu}\right)^2 \left[j_0(2\pi\nu t)\exp(-a t)-1\right]` 
+                                                                       :math:`- a \left[1+\left(\frac{a}{2\pi\nu}\right)^2\right] \int_0^t \exp(-a\tau) j_0(2\pi\nu\tau) d\tau = G_{\rm L}^{\rm LF}(t)`
+dynExpKTLF   dektlf  :math:`\nu` (MHz), \                            :math:`\frac{1}{2\pi i} \int_{\gamma+i\infty}^{\gamma-i\infty} \frac{f_{\rm L}(s+\Gamma)}{1-\Gamma f_{\rm L}(s+\Gamma)} \exp(s t) ds`,                                                                                                                       [#n5]_
+                     :math:`a (\mu \mathrm{s}^{-1})`, \                 where :math:`f_{\rm L}(s) = \int_0^\infty G_{\rm L}^{\rm LF}(t) \exp(-s t) dt`
+                     :math:`\Gamma` (MHz)
+combiLGKT    lgkt    :math:`\lambda (\mu \mathrm{s}^{-1})`, \        :math:`\frac{1}{3} + \frac{2}{3} (1 - \sigma^2 t^2 -\lambda t) \exp\left(-\frac{\sigma^2 t^2}{2}-\lambda t\right)`
+                     :math:`\sigma (\mu \mathrm{s}^{-1})`
+strKT        skt     :math:`\sigma (\mu \mathrm{s}^{-1}),~\beta(1)`  :math:`\frac{1}{3} + \frac{2}{3} \left[ 1 - (\sigma t)^\beta\right] \exp\left[-(\sigma t)^\beta / \beta \right]`                                                                                                                                             [#n6]_
+spinGlass    spg     :math:`\lambda (\mu \mathrm{s}^{-1})`, \        :math:`\frac{1}{3} \exp\left(-\sqrt{\Omega t}\right) +` 
+                     :math:`\gamma (\mu \mathrm{s}^{-1})`, \            :math:`+ \frac{2}{3} \left(1 - \frac{q\lambda^2 t^2}{\sqrt{\Omega t+ q\lambda^2 t^2}}\right) \exp(-\sqrt{\Omega t + q \lambda^2 t^2})`,
+                     :math:`q (1)`                                      :math:`\Omega t = \frac{4 \lambda^2 (1-q) t}{\gamma}`                                                                          
+rdAnisoHf    rahf    :math:`\nu` (MHz), \                            :math:`\frac{1}{6} (1-\nu t/2) \exp(-\nu t/2) +`                                                                                                                                                                                                             [#n7]_
+                     :math:`\lambda (\mu \mathrm{s}^{-1})`              :math:`+ \frac{1}{3} (1 - \nu t/4) \exp(-\frac{\nu t + 2.44949 \lambda t}{4})`
+TFieldCos    tf      :math:`\varphi (^\circ), \nu` (MHz)             :math:`\cos\left(2\pi\nu t + \frac{\pi \varphi}{180}\right)`
+internFld    if      :math:`\alpha (1), \varphi (^\circ)`, \         :math:`\alpha \cos\left(2\pi\nu t + \frac{\pi \varphi}{180}\right) \exp(-\lambda_{\rm T}t) +`
+                     :math:`\nu` (MHz), \                               :math:`+ (1-\alpha) \exp(-\lambda_{\rm L} t)`
+                     :math:`\lambda_{\rm T} (\mu \mathrm{s}^{-1})`,\
+                     :math:`\lambda_{\rm L} (\mu \mathrm{s}^{-1})`
+Bessel       b       :math:`\varphi (^\circ), \nu` (MHz)             :math:`j_0\left(2\pi\nu t + \frac{\pi \varphi}{180}\right)`
+internbsl    ib      :math:`\alpha (1), \varphi (^\circ)`, \         :math:`\alpha j_0\left(2\pi\nu t + \frac{\pi \varphi}{180}\right) \exp(-\lambda_{\rm T}t) +`
+                     :math:`\nu` (MHz), \                               :math:`+ (1-\alpha) \exp(-\lambda_{\rm L} t)`
+                     :math:`\lambda_{\rm T} (\mu \mathrm{s}^{-1})`,\
+                     :math:`\lambda_{\rm L} (\mu \mathrm{s}^{-1})`
+internFldGK  ifgk    :math:`\alpha (1), \nu` (MHz), \                :math:`\alpha\left[\cos(2\pi\nu t)-\frac{\sigma^2 t}{2\pi\nu}\sin(2\pi\nu t)\right]\exp(-\sigma^2 t^2/2)+`                     
+                     :math:`\sigma (\mu \mathrm{s}^{-1})`, \            :math:`+ (1-\alpha) \exp(-(\lambda t)^\beta)`                                                                                                                                                                                                             [#n8]_
+                     :math:`\lambda (\mu\mathrm{s}^{-1}), \beta (1)` 
+internFldLL  ifll    :math:`\alpha (1), \nu` (MHz), \                :math:`\alpha\left[\cos(2\pi\nu t)-\frac{a}{2\pi\nu}\sin(2\pi\nu t)\right]\exp(-a t)+`
+                     :math:`a (\mu \mathrm{s}^{-1})`, \                 :math:`+ (1-\alpha) \exp(-(\lambda t)^\beta)`                                                                                                                                                                                                                  [#n9]_
+                     :math:`\lambda (\mu\mathrm{s}^{-1}), \beta (1)`
+abragam      ab      :math:`\sigma (\mu \mathrm{s}^{-1})`, \         :math:`\exp\left[-\frac{\sigma^2}{\gamma^2} (e^{-\gamma t} - 1 + \gamma t)\right]`
+                     :math:`\gamma` (MHz)
+skewedGss    skg     :math:`\varphi (^\circ), \nu` (MHz) \           :math:`\frac{\sigma_{-}}{\sigma_{+}+\sigma_{-}} \exp\left[\frac{\sigma_{-}^2 t^2}{2}\right] \left\{\cos(2\pi\nu t + \frac{\pi\varphi}{180}) + \sin(2\pi\nu t + \frac{\pi\varphi}{180}) \mathrm{Erfi}\left(\frac{\sigma_{-} t}{\sqrt{2}}\right)\right\} +`    [#n10]_
+                     :math:`\sigma_{+} (\mu \mathrm{s}^{-1})`, \        :math:`+ \frac{\sigma_{+}}{\sigma_{+}+\sigma_{-}} \exp\left[\frac{\sigma_{+}^2 t^2}{2}\right] \left\{\cos(2\pi\nu t + \frac{\pi\varphi}{180}) - \sin(2\pi\nu t + \frac{\pi\varphi}{180}) \mathrm{Erfi}\left(\frac{\sigma_{+} t}{\sqrt{2}}\right)\right\}`
+                     :math:`\sigma_{-} (\mu \mathrm{s}^{-1})`
+staticNKZF   snkzf   :math:`\Delta_0 (\mu \mathrm{s}^{-1})`, \       :math:`\frac{1}{3} + \frac{2}{3}\left(\frac{1}{1+R_b^2\Delta_0^2 t^2}\right)^{3/2} \left(1 - \frac{\Delta_0^2 t^2}{1+R_b^2\Delta_0^2 t^2}\right) \exp\left[-\frac{\Delta_0^2 t^2}{2(1+R_b^2\Delta_0^2 t^2)}\right]`                                          [#n11]_
+                     :math:`R_b = \Delta_{\rm GbG}/\Delta_0 (1)`
+staticNKTF   snktf   :math:`\varphi (^\circ), \nu` (MHz), \          :math:`\sqrt{\frac{1}{1+R_b^2 \Delta_0^2 t^2}} \exp\left[-\frac{\Delta_0^2 t^2}{2(1+R_b^2 \Delta_0^2 t^2)}\right] \cos(2\pi\nu t + \varphi)`                                                                                                                 see [13]
+                     :math:`\Delta_0 (\mu \mathrm{s}^{-1})`, \
+                     :math:`R_b = \Delta_{\rm GbG}/\Delta_0 (1)`     
+dynamicNKZF  dnkzf   :math:`\Delta_0 (\mu \mathrm{s}^{-1})`, \       :math:`\sqrt{\frac{1}{1+4 R_b^2 \Delta_0^2 \Theta(t)}} \exp\left[-\frac{2\Delta_0^2 \Theta(t)}{1+4 R_b^2 \Delta_0^2 \Theta(t)}\right]`,                                                                                                                      see [13]   
+                     :math:`R_b = \Delta_{\rm GbG}/\Delta_0 (1)`, \     :math:`\Theta(t) = \frac{\exp(-\nu_c t) -1 -\nu_c t}{\nu_c^2}`
+                     :math:`\nu_c` (MHz)
+dynamicNKTF  dnktf   :math:`\varphi (^\circ), \nu` (MHz), \          :math:`\sqrt{\frac{1}{1+2 R_b^2 \Delta_0^2 \Theta(t)}} \exp\left[-\frac{\Delta_0^2 \Theta(t)}{1+2 R_b^2 \Delta_0^2 \Theta(t)}\right] \cos(2\pi\nu t + \varphi)`,                                                                                             see [13]   
+                     :math:`\Delta_0 (\mu \mathrm{s}^{-1})`, \          :math:`\Theta(t) = \frac{\exp(-\nu_c t) -1 -\nu_c t}{\nu_c^2}`
+                     :math:`R_b = \Delta_{\rm GbG}/\Delta_0 (1)`, \
+                     :math:`\nu_c` (MHz)
+muMinusExpTF mmsetf  :math:`N_0 (1), \tau (\mu \mathrm{s}^{-1})`, \  :math:`N_0 \exp(-t/\tau) \left[ 1 + A \exp(-\lambda t) \cos(2 \pi \nu t + \varphi) \right]`                                                                                                                                                                  [#n12]_
+                     :math:`A (1), \lambda (\mu \mathrm{s}^{-1})`, \
+                     :math:`\varphi (^\circ), \nu` (MHz)
+polynom      p       :math:`t_0 ([t]), a_0 (1)`, \                   :math:`\sum_{k=0}^n a_k (t-t_0)^k`
+                     :math:`a_1 (t), \ldots, a_n (1)`
+============ ======= =============================================== ============================================================================================================================================================================================================================================================ ======
+
+.. rubric:: Notes
+
+.. [#n1] `R.S. Hayano <http://link.aps.org/doi/10.1103/PhysRevB.20.850>`_ *et al.*, Phys. Rev. B **20**, 850 (1979).  -- **not** DKS ready.
+.. [#n2] R.S. Hayano *et al.*, Phys. Rev. B **20**, 850 (1979)., 
+         `P. Dalmas de Réotier <http://dx.doi.org/10.1088/0953-8984/4/18/020>`_ and A. Yaouanc, J. Phys.: Condens. Matter **4**, 4533 (1992).,
+         `A. Keren <http://link.aps.org/doi/10.1103/PhysRevB.50.10039>`_, Phys. Rev. B **50**, 10039 (1994). -- **not** DKS ready.
+.. [#n3] `Y.J. Uemura <http://link.aps.org/doi/10.1103/PhysRevB.31.546>`_ *et al.*, Phys. Rev. B **31**, 546 (1985). -- **not** DKS ready.
+.. [#n4] Y.J. Uemura *et al.*, Phys. Rev. B **31**, 546 (1985). -- **not** DKS ready.
+.. [#n5] R.S. Hayano *et al.*, Phys. Rev. B **20**, 850 (1979)., P. Dalmas de Réotier and A. Yaouanc, J. Phys.: Condens. Matter **4**, 4533 (1992). -- **not** DKS ready.
+.. [#n6] `M.R. Crook <http://dx.doi.org/10.1088/0953-8984/9/5/018>`_ and R. Cywinski, J. Phys.: Condens. Matter **9** 1149 (1997).
+.. [#n7] `R.E. Turner <http://link.aps.org/doi/10.1103/PhysRevB.34.4467>`_ and D.R. Harshman, Phys. Rev. B **34**, 4467 (1986). 
+.. [#n8] `E.I. Kornilov <https://doi.org/10.1016/0375-9601(91)90959-C>`_ and V.Yu. Pomjakushin, Physics Letters A **153**, 364, (1991).
+         In the original work, :math:`\alpha=2/3,\, \lambda=0,\, \beta=1`. If you find values strongly deviating from these values you should question your analysis approach.
+.. [#n9] `M.I. Larkin <https://doi.org/10.1016/S0921-4526(00)00337-9>`_ *et al.*, Physica B: Condensed Matter **289-290**, 153 (2000).
+         In the original work, :math:`\alpha=2/3,\, \lambda=0,\, \beta=1`. If you find values strongly deviating from these values you should question your analysis approach.
+.. [#n10] `see memo <http://lmu.web.psi.ch/musrfit/memos/skewedGaussian.pdf>`_ -- **not** DKS ready.
+.. [#n11] `D.R. Noakes <http://link.aps.org/doi/10.1103/PhysRevB.56.2352>`_ and G.M. Kalvius, Phys. Rev. B **56**, 2352 (1997); 
+         A. Yaouanc and P. Dalmas de Réotier "Muon Spin Rotation, Relaxation, and Resonance" Oxford Scientific Publication; 
+         simplifying the original formulae by eliminating :math:`\Delta_{\rm eff}` via the identity 
+         :math:`\Delta_{\rm eff}^2 = (1+R_b^2)\Delta_0`.
+.. [#n12] This function is explicit for :math:`\mu^-`! Do not try to use it for :math:`\mu^+`!         
+
+.. _msr-map-intro:
+
+Maps
+^^^^
+
+There are two situations where the theory function needs an additional switch/map allowing a compact and flexible handling of the fit.
+
+#. Typically your spectrometer has a couple of detectors. Hence, in a TF experiment all these detectors will have at least a different initial phase. 
+   Maps allow exactly to deal with this difficulty.
+#. In case different runs are fitted simultaneously, it is very often necessary that for a given theory function, some parameters are run-dependent. 
+   An example could be a temperature scan, where the parameters (asymmetry, depolarization rates, etc.) will depend on the temperature.   
+
+In order to handle such situations, a mapping of parameters in the THEORY block is possible. That means, instead of a parameter number, 
+the mapping of the parameter is given. The definition of the mapping block is part of the :ref:`RUN block <msr-run-block>` and will be described there. 
+For example ::
+
+   THEORY
+   asymmetry 2
+   simplExpo 3
+   TFieldCos map1 5
+
+means that the phase parameter of ``TFieldCos`` will be mapped to :ref:`RUN block <msr-run-block>`, and hence every detector will have its individual phase.
+   
+Functions
+^^^^^^^^^
+
+Yet another useful feature is the possibility to define functions in the :ref:`FUNCTIONS block <msr-functions-block>`. 
+Within the :ref:`THEORY block <msr-theory-block>` these functions can be addressed as funX, where 'X' is the function number, *e.g.* fun2.
+Whereas the theory is operating on the parameters and the time, functions currently can *only* operate on the parameters.
+
+.. _msr-theory-block-user-functions:
+
+User Functions 
+^^^^^^^^^^^^^^
+
+In the case complicated and not predefined functions are needed to fit data, ``musrfit`` offers the possibility to implement external functions 
+and introduce them to ``musrfit`` through the ROOT dictionary mechanism. The detailed rules these user-defined functions have to obey will be discussed 
+in the according :ref:`section <user-functions>`. Here only the syntax for the msr file is provided. To call a user function in the :ref:`THEORY block <msr-theory-block>` the 
+keyword ``userFcn`` is used. It is followed by the name of the shared library which holds the C++ class where the function is implemented and the name of 
+the class. Finally, all parameters are given in the order needed by the class. Of course it is also possible to use mapped parameters or functions 
+instead of specifying the parameters directly. 
+
+A THEORY block including a user function may then look like ::
+
+   THEORY
+   asymmetry 1
+   userFcn libMyLibrary.so TMyFunction 2 3 4 map1 fun1
+   +
+   ...
+
+
+.. index:: msr-functions-block
+.. _msr-functions-block:
+
+The FUNCTIONS Block
++++++++++++++++++++
+
+Here some auxiliary functions can be defined. These functions can currently *only* operate on the defined parameters, and some meta information from the data files. 
+They can be used in the :ref:`THEORY block <msr-theory-block>` and for three specific cases in the :ref:`RUN block <msr-run-block>` (`norm`, `alpha`, and `beta`). 
+Supported is the use of basic arithmetic:
+
+:math:`+`
+  Addition
+:math:`-`
+  Subtraction
+:math:`*`
+  Multiplication
+:math:`/`
+  Division
+:math:`()`
+  The standard use of parentheses
+
+The following functions are built-in and can be used in a function definition: **cos(), sin(), tan(), acos(), asin(), atan(), cosh(), sinh(), tanh(), 
+acosh(), asinh(), atanh(), exp(), log(), ln(), sqrt(), pow(base, exponent)**. 
+  
+Furthermore, some constants are predefined and might also be used:
+
+* **gamma_mu** = :math:`\gamma_\mu/(2\pi) = 0.0135538817~\mathrm{MHz/G}`
+* **pi** = :math:`\pi = 3.14159265358979323846`
+
+The fit parameters are accessed either directly through parX, where 'X' is the number of the parameter in the :ref:`FITPARAMETER block <msr-fitparameter-block>`, 
+*e.g.* *par5* or through a mapping with mapY, where 'Y' specifies the mapping number in the :ref:`RUN block <msr-run-block>` as explained below. 
+
+
+.. index:: meta-information
+
+The available meta information form the data files are:
+
++------------------+--------------+---------+---------------------+
+| Meta Information | Symbol       | Units   | Comments            |
++------------------+--------------+---------+---------------------+
+| **Field**        | *B* or *b*   | `(G)`   |                     |
++------------------+--------------+---------+---------------------+
+| **Energy**       | *En* or *en* | `(keV)` | mainly LEM          |
++------------------+--------------+---------+---------------------+
+| **Temperature**  | *Tx*         | `(K)`   | x=0,1,.. e.g. *t0*  |
++------------------+--------------+---------+---------------------+
+
+The defined functions are denoted as funX, where 'X' is the function number, *i.e.* fun1, fun2, etc. and have to be placed separately on one 
+line each. Afterwards they can be used in the :ref:`THEORY block <msr-theory-block>`.
+
+It follows an example to illustrate the usage of functions in the :ref:`THEORY block <msr-theory-block>`. The total asymmetry of a signal 
+consisting of two parts should be a fit parameter. The fraction of each of the parts will then be expressed as a function of the total asymmetry. 
+::
+
+   FITPARAMETER
+   #       No   Name      Value     Step       Pos_Error    Boundaries
+           1   alpha     1          0.02       none         0       1.8
+           2   phase     15         1.0        none
+           3   asy       0.2542     0.004713   none         0       0.33
+           4   rate1     15         1.0        none         0       none
+           5   frac1     0.33       0.0379     none         0       1
+           6   rate2     0.13       0.00579    none         0       10
+
+   ###############################################################
+   THEORY
+   asymmetry   fun1
+   simplExpo      4                   (rate)
+   +
+   asymmetry   fun2
+   simplExpo      6                   (rate)
+
+   ###############################################################
+   FUNCTIONS
+   fun1 = par3 * par5
+   fun2 = par3 * ( 1.0 - par5 )
+   
+   
+.. index:: msr-global-block
+.. _msr-global-block:
+
+The GLOBAL Block
+++++++++++++++++
+
+The GLOBAL block is used to collect data which otherwise need to be specified in every single run entry of the :ref:`RUN block <msr-run-block>`. 
+Therefore, this block is only present to potentially shorten the msr file and to ease the handling for the user. The logic will by like that: 
+
+#. check if the property is found in the :ref:`RUN block <msr-run-block>`.
+#. if *not* present in the :ref:`RUN block <msr-run-block>`, check whether it is present in the GLOBAL block.
+#. if still not found, try the data file.
+#. if still not found, either try to estimate it, or fire an error message. 
+
+This means that an entry present in the :ref:`RUN block <msr-run-block>` will overwrite a setting from the GLOBAL block. 
+
+Currently the supported GLOBAL block entries are: 
+
+* ``fittype``
+* ``data``
+* ``t0``
+* ``addt0``
+* ``fit``
+* ``rrf_freq`` for fittype 1, 3
+* ``rrf_packing`` for fittype 1, 3
+* ``rrf_phase`` for fittype 1, 3
+* ``packing`` for fittype 0, 2, 4, 5
+
+For a detailed discussion of these entries see the section :ref:`RUN block <msr-run-block>`.
+
+The single histo RRF fit and asymmetry RRF fit related entries (fittype 1 and 3 only) have the following syntax: 
+
+**rrf_freq**
+  Defines the RRF frequency. The exact syntax is rrf_freq <value> <unit> where <value> is the value, and <unit> can be *MHz*, *Mc*, and *T*. An example: ::
+
+    rrf_freq 7.2 T
+
+**rrf_packing**
+  for fittype 1 and fittype 3 rather than giving packing, rrf_packing <pack> has to be provided, *e.g.* ::
+
+    rrf_packing 150
+
+**rrf_phase**
+  an optional additional RRF phase can be provided (if not provided, the RRF phase will be 0.0). 
+  Syntax: rrf_phase <phase>, where the value <phase> is given in degree. Example: ::
+
+    rrf_phase 45
+
+An example snippet with, and without GLOBAL section. 
+
+With GLOBAL block:  ::
+
+  ...
+  ###############################################################
+  GLOBAL
+  fittype         0         (single histogram fit)
+  fit             0.0005  10     
+  packing         5
+
+  ###############################################################
+  RUN data/tdc_hifi_2014_00153 PIE3 PSI PSI-MDU   (name beamline institute data-file-format)
+  map             5    6    7    0    0    0    0    0    0    0    0
+  norm            8
+  backgr.fit      9
+  forward         2 
+  data            20120   409500  
+  t0              20108.0 
+  #--------------------------------------------------------------
+  RUN data/tdc_hifi_2014_00153 PIE3 PSI PSI-MDU   (name beamline institute data-file-format)
+  map            10   11   12    0    0    0    0    0    0    0    0
+  norm            13
+  backgr.fit      14
+  forward         3 
+  data            20111   409500  
+  t0              20088.0 
+  #--------------------------------------------------------------
+  RUN data/tdc_hifi_2014_00153 PIE3 PSI PSI-MDU   (name beamline institute data-file-format)
+  ...
+  
+Without GLOBAL block: ::  
+  
+  ...
+  ###############################################################
+  RUN data/tdc_hifi_2014_00153 PIE3 PSI PSI-MDU   (name beamline institute data-file-format)
+  fittype         0         (single histogram fit)
+  map             5    6    7    0    0    0    0    0    0    0    0
+  norm            8
+  backgr.fit      9
+  forward         2 
+  data            20120   409500  
+  t0              20108.0 
+  fit             0.0005  10     
+  packing         5
+  #--------------------------------------------------------------
+  RUN data/tdc_hifi_2014_00153 PIE3 PSI PSI-MDU   (name beamline institute data-file-format)
+  fittype         0         (single histogram fit)
+  map            10   11   12    0    0    0    0    0    0    0    0
+  norm            13
+  backgr.fit      14
+  forward         3 
+  data            20111   409500  
+  t0              20088.0 
+  fit             0.0005  10     
+  packing         5
+  #--------------------------------------------------------------
+  RUN data/tdc_hifi_2014_00153 PIE3 PSI PSI-MDU   (name beamline institute data-file-format)
+  fittype         0         (single histogram fit)
+  ... and many more detectors here ...
+
+    
+.. index:: msr-run-block
+.. _msr-run-block:
+
+The RUN Block 
++++++++++++++
+
+The RUN block is used to collect the data needed for a particular run to be fitted. This includes the run name, fit type, data format, etc. 
+The RUN block is slightly differently organized than the other blocks. The information is collected via labels followed by the information. 
+Each run to be fitted has its *own* RUN block. A RUN block starts with a run-file line which has the structure ::
+
+  RUN <run_file_name> <beamline> <facility> <file_format>
+ 
+where 
+
+================ ====================================================================================================
+RUN-block tag    comment 
+================ ====================================================================================================
+<run_file_name>  sub path and file name without extension  
+<beamline>       name of the beamline where the data were taken, *e.g.* MUE4. Used to generate a default path.
+<facility>       name of the facility where the data were recorded, *e.g.* PSI. Used to generate a default path. 
+<file_format>    file format: MUSR-ROOT, NEXUS, ROOT-NPP, ROOT-PPC, PSI-BIN, PSI-MDU, WKM, MUD, MDU-ASCII, ASCII, DB
+================ ====================================================================================================
+
+The tokens following the RUN statement are used to identify the run, the potential location where the run might be found, 
+and the file format in which the run data has been saved. In order to understand the meaning of all the above tokens, 
+a short digression is needed. 
+
+Where is musrfit looking for data files? There is a specific order how this is done: 
+
+1. Check if the file is found in the current directory 
+2. Check if the path (or multiple paths) was (were) given in the :ref:`XML startup file <musrfit-startup>`.
+3. Check if there is a system variable ``MUSRFULLDATAPATH``. This system variable can contain multiple search paths separated by colons, *e.g.*  
+
+  .. code-block:: bash
+
+    $ export MUSRFULLDATAPATH=/mnt/data/nemu/wkm/:/mnt/data/nemu/his/:/afs/psi.ch/user/s/smith/
+
+4. Construct the search path from the :ref:`RUN-block <msr-run-block>` information in the following way: Based on the RUN line in the RUN block, default paths will be generated, *e.g.* for 
+   ::
+
+     RUN 2007/lem07_his_2018 MUE4 PSI ROOT-NPP
+
+   the generated search path will look like 
+
+   ::
+  
+     musrFullDataPathToken/DATA/Facility/Beamline/runName.ext
+
+   where ``musrFullDataPathToken`` is extracted from the ``MUSRFULLDATAPATH`` token by token, for the above example this might lead to the path 
+
+  ::
+
+    /afs/psi.ch/user/s/smith/DATA/PSI/MUE4/2007/lem07_his_2018.root
+
+Here are some valid examples for the first line of a RUN block:
+
+::
+
+  RUN 2007/lem07_his_2018 MUE4 PSI ROOT-NPP
+  RUN 2007/lem07_2018_rb1_npp MUE4 PSI WKM
+  RUN d2007/deltat_pta_gps_2650 PIM3 PSI PSI-BIN
+  RUN d2010/tdc/deltat_tdc_gpd_8472 MUE1 PSI PSI-BIN
+  RUN beautiful-data MUE4 PSI DB
+
+After this short digression back to the RUN-block description.
+
+In order to describe the operations needed for fitting and plotting, quite some information are needed. These information are following the RUN statement and are listed below. Depending on the fit type these information vary and hence it is indicated for which fit/plot type the information is applicable
+
+.. index:: addrun
+.. _msr-addrun:
+
+**ADDRUN <run_file_name> <beamline> <facility> <file_format>** (optional)   
+  If an ADDRUN is just following after a RUN statement, these runs will be added. More than one ADDRUN statements are possible, *i.e.* adding up as many runs as wished. It is also possible to add runs with different file formats. If the t0's are given in the data files, the ADDRUN statement is all what is needed, otherwise just add the t0's with the addt0 statement.
+
+  For a :ref:`Single Histogram Fit <single-histogram-fit>` or a :ref:`MuMinus Fit <negative-muon-musr-fit>` it will be 
+
+  ::
+
+    addt0 t0AddRun1
+    addt0 t0AddRun2
+    etc.
+
+  For an :ref:`Asymmetry Fit <asymmetry-fit>` this reads 
+
+  :: 
+    
+    addt0 t0AddRun1Forward t0AddRun1Backward
+    addt0 t0AddRun2Forward t0AddRun2Backward
+    etc.
+
+  How will the background and data ranges be handled in this situation? First, the ADDRUN's will be shifted in time such that all the t0's have the same channel/bin number. Subsequently, the runs will be added. The background/data range is applied to this summed up new histogram. 
+
+  ADDRUN is *not* available for the fit type :ref:`Non-muSR Fit <non-musr-fit>`. 
+
+.. index:: fittype
+.. _msr-fittype:
+
+**fittype** (required if not already defined in the GLOBAL block) 
+  This tag is used to indicate which type of fit is wished. The supported fit types are: 
+
+  **0**
+    Single Histogram Fit
+  **1**
+    Single Histogram RRF Fit (only for online analysis)
+  **2**
+    Asymmetry Fit
+  **3**
+    Asymmetry RRF Fit (only for online analysis)
+  **4**
+    MuMinus Fit. This is a single histogram fit especially for negative muon |mgr|\SR
+  **5**
+    beta-NMR Asymmetry Fit
+  **8**
+    Non-|mgr|\SR Fit   
+
+  The description of these fit types can be found in the :ref:`corresponding section <fit-types>`. Example:
+
+  ::
+   
+    fittype 0
+
+.. index:: alpha-beta
+.. _msr-alpha-beta:
+
+**alpha, beta** (fit type 2, 3, 5)
+  These parameters are used to correct the asymmetry for different detector efficiencies, solid angles and initial asymmetries. They are defined as :math:`\alpha = N_{0,b}/N_{0,f}` and :math:`\beta = A_{0,b}/A_{0,f}`. If the parameters are not specified in the :ref:`RUN block <msr-run-block>`, for each one the value of 1 is assumed (for fittype 5, alpha is estimated from the ratio of :math:`\sum_i \left( N_{\mathrm{bp}}(i)+N_{\mathrm{bm}}(i) \right)` and :math:`\sum_i \left( N_{\mathrm{fp}}(i)+N_{\mathrm{fm}}(i) \right)`). Both, `alpha` as well as `beta` can be expressed through a function. Example for alpha with fit parameter number 1:
+
+  ::
+
+    alpha 1
+
+  Example for an ``alpha`` defined via function number 1:
+  
+  ::
+  
+    alpha fun1 
+
+.. index:: norm
+.. _msr-norm:
+
+**norm** (fit type 0)
+  Number of the fit parameter that represents the normalization constant :math:`N_0` of the histogram; the value of this parameter is given either per nanosecond or per bin (see :ref:`below <msr-commands-block>`). 
+  It is possible to substitute the parameter number by a function, for instance to relate :math:`N_0`\'s of different histograms through an :math:`\alpha` 
+  parameter. Example for a ``norm`` defined by fit parameter number 12:
+  
+  ::
+  
+    norm 12
+    
+  Example for a ``norm`` defined via function number 3:
+  
+  ::
+  
+    norm fun3
+    
+.. index:: backgr.fit
+.. _msr-backgr.fit:
+
+**backgr.fit** (fit type 0)     
+  Parameter number specifying the constant background in a histogram. Its value is given either per nanosecond or per bin (see :ref:`below <msr-commands-block>`). If this keyword is present, 
+  any information on a background line are ignored. 
+  
+.. index:: lifetime
+.. _msr-lifetime:
+
+**lifetime** (fit type 0)   
+  Fit parameter representing the lifetime of the muon. If it is not specified the value :math:`\tau_\mu=2.197019~ \mu\mathrm{s}` is used in the calculations.
+
+**lifetimecorrection** (fit type 0) *obsolete*
+  Does not accept any arguments. If present, the output in ``musrview`` is corrected for the exponential decay of the muon. This item is *obsolete* in the RUN block 
+  and will be transferred to the :ref:`PLOT block <msr-plot-block>`, which allows switching between histogram view and asymmetry view much quicker.
+  
+.. index:: map
+.. _msr-map:
+
+**map**  
+  On this line the mapping of run-dependent parameters is done. Parameter numbers given here may be accessed through map1, map2, etc. in the 
+  :ref:`THEORY <msr-theory-block>` and :ref:`FUNCTIONS <msr-functions-block>` blocks (see also :ref:`maps <msr-map-intro>`). The first ten maps 
+  are always present and have the value 0 if not used; however, the total number of maps is not restricted! 
+  
+.. index:: forward
+.. _msr-forward:
+
+**forward** (fit type 0, 1, 4)   
+  Number of the histogram in the data file to be processed. If histograms shall be grouped, all the numbers which shall be grouped. Examples: 
+  
+  ::
+  
+    forward 3       # no grouping, take histogram number 3
+    forward 1 2     # group histogram number 1 and 2
+    forward 1-10 12 # group histograms with numbers from 1 to 10 and additionally histogram 12 
+  
+.. index:: forward-backward
+.. _msr-forward-backward:
+
+**forward, backward** (fit types 2, 3)   
+  Numbers of the histograms in the data file that should be taken to calculate the asymmetry. If histograms shall be grouped, all the numbers which shall be grouped. Examples: 
+  
+  ::
+  
+    # build forward/backward asymmetry with histogram 1 and 3
+    forward  1
+    backward 3
+    # build forward/backward asymmetry with groupings 1+2+3 and 7+8+9
+    forward   1 2 3
+    backward  7 8 9
+    # build forward/backward asymmetry with groupings 1+2+3 and 7+8+9 (alternative notation)
+    forward   1-3
+    backward  7-9
+
+**forward, backward** (fit type 5)   
+  Numbers of the histograms in the data file that should be taken to calculate the asymmetry. Two forward and backward histograms should be given indicationg positive and negative helicities. The asymmetry from opposite helicities will be subtracted. Examples: 
+  
+  ::
+  
+    # build forward/backward asymmetry with histogram 1 and 3 then subtract asymmetry built with histograms 2 and 4
+    forward  1 2
+    backward 3 4
+
+.. index:: backgr.fix
+.. _msr-backgr.fix:
+
+**backgr.fix** (fit types 0, 1, 2, 3, 5)    
+  A fixed constant background in counts per nanosecond or per bin (see :ref:`below <msr-commands-block>`) may be given at this point. 
+  The background is specified for all histograms in the order :math:`B_f B_b [B_r B_l]`. If this keyword is present, *any* information on a ``background`` line is ignored. 
+    
+.. index:: background-single-histo
+.. _msr-background-single-histo:
+
+**background** (fit type 0, 1)     
+  The numbers of the first and the last channel of an interval from which the constant background should be calculated are specified here. 
+  In case histograms are being grouped, the specified channels are interpreted with respect to the first histogram. Example:
+  
+  ::
+  
+    background  100  18000
+    
+.. index:: background-asymmetry
+.. _msr-background-asymmetry:
+
+**background** (fit types 2, 3, 5)     
+  The numbers of the first and the last channel of an interval from which the constant background should be calculated are specified here. 
+  For all the histograms this is done together in the following order: :math:`k_{f,\rm first} k_{f,\rm last} k_{b,\rm first} k_{b, \rm last} [k_{r,\rm first} k_{r,\rm last} k_{l,\rm first} k_{l,\rm last}]`. 
+  In case histograms are being grouped, the specified channels are interpreted with respect to the first histograms. Example:
+  
+  ::
+  
+    background  61  184   57  145     
+
+.. index:: data-single-histo
+.. _msr-data-single-histo:
+ 
+**data** (fit type 0, 1, 4) 
+  The numbers of the first and the last channel of an interval from which the data is taken are specified here. 
+  In case histograms are being grouped, the specified channels are interpreted with respect to the first histogram. 
+  Typically these channels are referred to as ``first good bin`` / ``last good bin`` (fgb/lgb). Example:
+   
+  ::
+   
+    data  165   7965   
+     
+.. index:: data-asymmetry
+.. _msr-data-asymmetry:
+
+**data** (fit type 2, 3, 5) 
+  The numbers of the first and the last channel of an interval from which the data is taken are specified here. 
+  Typically these channels are referred to as first good bin / last good bin (fgb/lgb). For all the histograms this is 
+  done together in the following order: :math:`k_{f,\rm first} k_{f,\rm last} k_{b,\rm first} k_{b, \rm last} [k_{r,\rm first} k_{r,\rm last} k_{l,\rm first} k_{l,\rm last}]`. 
+  In case histograms are being grouped, the specified channels are interpreted with respect to the first histograms. Example:
+  
+  ::
+  
+    data  207   7994    167   8009    
+    
+.. index:: t0-single-histo
+.. _msr-t0-single-histo:
+
+**t0** (fit type 0, 1, 4)     
+  The number of the time-zero channel of the histogram. Example: 
+  
+  ::
+  
+    t0 3419        # t0 channel = 3419
+    t0 3419 3434   # t0 channels for groupings: forward f1 f2. 3419 t0 for f1, 3434 t0 for f2. 
+
+.. index:: t0-asymmetry
+.. _msr-t0-asymmetry:
+
+**t0** (fit type 2, 3, 5)     
+  The numbers of time-zero channels of the histograms in the order :math:`t_{0,f} t_{0,b}`. For fit type 5, the time-zero is the channel of the start of beam pulse. Example:
+  
+  ::
+  
+    t0 3419 3418           # t0 channels: forward (3419), backward (3418)
+    t0 3419 3418 3417 3416 # t0 channels (assuming forward f1 f2, backward b1 b2): forward (3419, f1), backward (3418, b1); forward (3417, f2), backward (3416, b2)
+
+.. index:: addt0-single-histo
+.. _msr-addt0-single-histo:
+
+**addt0** (fit type 0, 1, 4) 
+  The number of the time-zero channel of the histogram. If grouping of histograms is present (see :ref:`forward <msr-forward>`) the 
+  same syntax as for :ref:`t0 <msr-t0-single-histo>` applies. If one addt0 is given, the total number of addt0's needs to be equal to 
+  the total number of :ref:`ADDRUN <msr-addrun>`\'s! 
+  
+.. index:: addt0-asymmetry
+.. _msr-addt0-asymmetry:
+
+**addt0** (fit type 2, 3, 5) 
+  The numbers of time-zero channels of the histograms in the order :math:`t_{0,f} t_{0,b} [t_{0,r} t_{0,l}]`. 
+  If grouping of histograms is present (see :ref:`forward <msr-forward-backward>`) the same syntax as for :ref:`t0 <msr-t0-asymmetry>` applies. 
+  If one addt0 is given, the total number of addt0's needs to be equal to the total number of :ref:`ADDRUN <msr-addrun>`\'s! 
+  
+  
+.. index:: xy-data
+.. _msr-xy-data:
+
+**xy-data** (fit type 8)   
+  Specification of the data from an ASCII or DB file which should be used as *x* and *y* data (in this order). 
+  For a simple ASCII file the column numbers are used, in the case of a DB file one can either specify the variable 
+  numbers or the name of the variables as given in the DB header. 
+
+.. index:: fit
+.. _msr-fit:
+
+**fit**   
+  The range of data that should be considered when the fitting is done. For the |mgr|\SR fit types 0, 1, 2, 3, and 4 the 
+  starting and end times are given in micro-seconds. For the non-|mgr|\SR fit type 8 the starting and end points of the 
+  fitting range are given in the units of the *x* data.
+  
+  **In case the fit range specified here is larger than the data range (in any direction), the data range will be used as fit range.** 
+  
+  An example for a |mgr|\SR fit:
+  
+  ::
+  
+    fit 0.1 8.5
+  
+  Which means that the fitting window will span from 0.1 to 8.5 micro-seconds.
+  
+  Another possibility for the |mgr|\SR fits is to give the fit range in bins, rather than time. The syntax is then:
+  
+  ::
+  
+    fit fgb+<n0> lgb-<n1>,
+    
+  where ``fgb`` and ``lgb`` are label tags which refer to the 'first good bin' and the 'last good bin' defined 
+  either in the :ref:`data <msr-data-single-histo>` tag of the run block, data file, are estimated based on T0. 
+  ``<n0>`` and ``<n1>`` are offsets (given in bins) allowing to change the fit window compared to the data window. 
+  An example:
+  
+  ::
+  
+    fit fgb+150 lgb-1332
+    
+.. index:: packing
+.. _msr-packing:
+
+**packing**
+  Number of data channels to be binned together. For the non-|mgr|\SR fit type 8 the binning is supposed to be 1. 
+  For the single histogram RRF fit (fittype 1) and asymmetry RRF fit (fittype 3) this parameter is meaningless. 
+  
+.. index:: msr-commands-block
+.. _msr-commands-block:
+
+The COMMANDS Block
+++++++++++++++++++
+
+The COMMANDS block is used to specify the commands which are passed from ``musrfit`` to ``MINUIT2``. The supported commands 
+after the ``COMMANDS`` keyword are listed in the two tables below (:ref:`minuit2-command-overview` and :ref:`dks-command-overview`) 
+and further described in :ref:`musrfit-command-block-details`.
+
+.. index:: minuit2-command-overview
+.. _minuit2-command-overview:
+
+Minuit2 Command Overview
+^^^^^^^^^^^^^^^^^^^^^^^^
+
++--------------------+-------------------------------------+------------------------------------------+
+| **Cmd**            | brief description                   | Reference                                |
++====================+=====================================+==========================================+
+| **STRATEGY**       | 0 (low), 1 (default), and 2 (high)  | [#f3]_                                   |
++--------------------+-------------------------------------+------------------------------------------+
+| **MIGRAD**         | This is the best minimizer for      | [#f3]_                                   |
+|                    | nearly all functions.               |                                          |
++--------------------+-------------------------------------+------------------------------------------+
+| **SIMPLEX**        | This genuine multidimensional       | [#f3]_                                   |
+|                    | minimization routine is usually     |                                          |
+|                    | much slower than MIGRAD.            |                                          |
++--------------------+-------------------------------------+------------------------------------------+
+| **MINIMIZE**       | This is equivalent to MIGRAD,       | [#f3]_                                   |
+|                    | except that if MIGRAD fails, it     |                                          |
+|                    | reverts to SIMPLEX and then calls   |                                          |
+|                    | MIGRAD again.                       |                                          |
++--------------------+-------------------------------------+------------------------------------------+
+| **MINOS**          | Calculate parameter errors taking   | [#f3]_                                   |
+|                    | into account both parameter         |                                          |
+|                    | correlations and non-linearities.   |                                          |
++--------------------+-------------------------------------+------------------------------------------+
+| **HESSE**          | Calculates an error matrix.         | [#f3]_                                   |
++--------------------+-------------------------------------+------------------------------------------+
+| **SAVE**           | Writes the ``MINUIT2.OUTPUT`` and   |                                          |
+|                    | ``MINUIT2.root`` files which        |                                          |
+|                    | contained detailed information      |                                          |
+|                    | about the fit, like the             |                                          |
+|                    | ``COVARIANCE MATRIX``,              |                                          |
+|                    | ``CORRELATION COEFFICIENTS``, etc.  |                                          |
++--------------------+-------------------------------------+------------------------------------------+
+| **SET BATCH**      | Obsolate. Only present for          |                                          |
+|                    | backward compatibilty.              |                                          |
++--------------------+-------------------------------------+------------------------------------------+
+| **END RETURN**     | Obsolete. Only present for          |                                          |
+|                    | backward compatibility.             |                                          |
++--------------------+-------------------------------------+------------------------------------------+
+| **MAX_LIKELIHOOD** | If present, use max. log likelihood | see :ref:`musrfit-command-block-details` |
+|                    | rather than the default             |                                          |
+|                    | :math:`\chi^2`.                     |                                          |
++--------------------+-------------------------------------+------------------------------------------+
+| **PRINT_LEVEL**    | Prints more or less messages to the | [#f3]_                                   |
+|                    | stdout. Allowed values: 0-3         |                                          |
++--------------------+-------------------------------------+------------------------------------------+
+| **SCAN**           | A command line based option, which  | [#f3]_                                   |
+|                    | allows to scan :math:`\chi^2` by    |                                          |
+|                    | vary a single parameter.            |                                          |
+|                    | ``SCAN`` needs to be followed by    |                                          |
+|                    | the command ``MNPLOT``.             |                                          |
++--------------------+-------------------------------------+------------------------------------------+
+| **CONTOURS**       | A command line based option. It     | [#f3]_                                   |
+|                    | allows to plot the contour of       |                                          |
+|                    | parX vs parY.                       |                                          |
+|                    | ``CONTOURS`` needs to be followed   |                                          |
+|                    | by the command ``MNPLOT``.          |                                          |
++--------------------+-------------------------------------+------------------------------------------+
+| **MNPLOT**         | Helper command for the commands     |                                          |
+|                    | ``SCAN`` and ``CONTOURS``.          |                                          |
++--------------------+-------------------------------------+------------------------------------------+
+| **FIX**            | Allows to fix parameters on the     | see :ref:`musrfit-command-block-details` |
+|                    | command level. It can help to guide |                                          |
+|                    | a complicated fit (e.g. muonium     |                                          |
+|                    | :math:`\mu^+`.                      |                                          |
++--------------------+-------------------------------------+------------------------------------------+
+| **RELEASE**        | Allows to release parameters on the | see :ref:`musrfit-command-block-details` |
+|                    | command level which have been fixed |                                          |
+|                    | before. It can help to guide        |                                          |
+|                    | a complicated fit (e.g. muonium     |                                          |
+|                    | :math:`\mu^+`.                      |                                          |
++--------------------+-------------------------------------+------------------------------------------+
+| **RESTORE**        | Releases **all** fixed parameters.  | see :ref:`musrfit-command-block-details` |
++--------------------+-------------------------------------+------------------------------------------+
+| **FIT_RANGE**      | Allows to change the fit range on   | see :ref:`musrfit-command-block-details` |
+|                    | the command level. This might be    |                                          |
+|                    | helpful in conjunction with         |                                          |
+|                    | multiple signals in the spectrum.   |                                          |
++--------------------+-------------------------------------+------------------------------------------+
+| **SCALE_N0_BKG**   | For histogram fits only.            | see :ref:`musrfit-command-block-details` |
+|                    | If set true (default), it will      |                                          |
+|                    | scale :math:`N_0` to 1/ns,          |                                          |
+|                    | Otherwise :math:`N_0` is given in   |                                          |
+|                    | counts.                             |                                          |
++--------------------+-------------------------------------+------------------------------------------+
+| **SECTOR**         | Allows to output :math:`\chi^2` or  | see :ref:`musrfit-command-block-details` |
+|                    | maxLH values for a sub-range of the |                                          |
+|                    | fitted time range.                  |                                          |
+|                    | Used for statistical analysis only. |                                          |
++--------------------+-------------------------------------+------------------------------------------+
+
+.. rubric:: Minuit2 Command Notes
+
+.. [#f3] see `MINUIT2 users guide <https://root.cern.ch/root/htmldoc/guides/minuit2/Minuit2.html>`_
+
+
+.. index:: dks-command-overview
+.. _dks-command-overview:
+
+DKS Command Overview
+^^^^^^^^^^^^^^^^^^^^
+
++--------------------+--------------------------------------+--------------+
+| **DKS Extension**  | brief description                    | Reference    |
++====================+======================================+==============+
+| **OpenMP**         | Invoke OpenMP if allowed by the OS.  | [#f4]_       |
+|                    | Currently macOS does *not* support   |              |
+|                    | OpenMP out of the box. All Linux     |              |
+|                    | flavours do so.                      |              |
++--------------------+--------------------------------------+--------------+
+| **CUDA**           | For properly setup Nvidia graphic    | [#f5]_       |
+|                    | cards (e.g. Tesla K40c).             |              |
+|                    | Allows to off-load the minimization  |              |
+|                    | to the GPU. Speedups of up to 50     |              |
+|                    | are possible!                        |              |
++--------------------+--------------------------------------+--------------+
+| **OpenCL-CPU**     | Invoke OpenCL on the CPU if the      | [#f6]_       |
+|                    | OS supports it. This might be useful |              |
+|                    | for macOS.                           |              |
++--------------------+--------------------------------------+--------------+
+| **OpenCL-GPU**     | Invoke OpenCL on the GPU if the      | [#f6]_       |
+|                    | OS supports it. This might be useful |              |
+|                    | for macOS and for systems having a   |              |
+|                    | powerful AMD graphics card in place. |              |
++--------------------+--------------------------------------+--------------+
+
+.. rubric:: DKS Command Notes
+
+.. [#f4] Standard ``musrfit`` as well as DKS support `OpenMP <https://www.openmp.org/>`_.
+         It allows to use all your threads of your CPU(s) during the minimization.
+
+.. [#f5] This is only supported for the ``DKS`` version of ``musrfit``. For details about
+         ``CUDA`` see `NVIDIA <https://developer.nvidia.com/cuda-zone>`_.
+
+.. [#f6] This is only supported for the ``DKS`` version of ``musrfit``. For details about
+         ``OpenCL`` see `the Khronos Group <https://www.khronos.org/opencl/>`_.
+
+
+.. index:: musrfit-command-block-details
+.. _musrfit-command-block-details:
+
+``musrfit`` Command Block Details
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+A standard COMMANDS block then looks like this:
+
+::
+
+  COMMANDS
+  MINIMIZE
+  MINOS
+  SAVE
+
+Additional to the commands listed above also the command **MAX_LIKELIHOOD** is valid. This keyword can be placed anywhere in 
+the block and switches from the default :math:`\chi^2` minimization to the log likelihood maximization which can be advantageous 
+if one is dealing with low-statistics data.
+
+Furthermore, it is possible to call the ``MINUIT2`` methods **SCAN** and **CONTOURS** together with **MNPLOT**. 
+Exemplary invocations are as follows:
+
+::
+
+  COMMANDS
+  SCAN 7
+  MNPLOT
+
+or
+
+::
+
+  COMMANDS
+  MINIMIZE
+  CONTOURS 8 9
+  MNPLOT
+  SAVE
+
+Sometimes it is necessary to guide ``MINUIT2`` to the global optimum. For this purpose it is useful to have the commands 
+**FIX <list_of_param_to_be_fixed>**, **RELEASE <list_of_param_to_be_fixed>**, and **RESTORE** at hand. **<list_of_param_to_be_fixed>** 
+is a list of the parameters to be fixed/released. It is a space- or comma-separated list of either parameter numbers and/or parameter names. 
+**RESTORE** releases all the fixed parameters. A typical example could look like:  
+
+::
+
+  COMMANDS
+  FIX Freq1, Freq2
+  MINIMIZE
+  RESTORE
+  MINIMIZE
+  MINOS
+  SAVE
+  
+It is important to understand that before **MINOS** is called, all the fixed parameters need to be released and another minimizer 
+command (**MINIMIZE**, **MIGRAD**, or **SIMPLEX**) needs to be in place, otherwise musrfit will assume that the still fixed parameters 
+have to be handled as constant parameters, *i.e.* setting the <step> value of the parameter to zero.   
+
+For even more complex fitting the additional command **FIT_RANGE [RESET | t**\ :sub:`start` **t**\ :sub:`end` **| t**\ :sub:`s1` **t**\ :sub:`e1` 
+**t**\ :sub:`s2` **t**\ :sub:`e2` **... t**\ :sub:`sn` **t**\ :sub:`en` **]** is provided. It allows to change the fit range during different iterations. 
+The command **FIT_RANGE t**\ :sub:`start` **t**\ :sub:`end` changes the current fit range for all the runs present in the msr file. 
+**FIT_RANGE RESET** will restore to the original fit ranges as provided in the :ref:`RUN block <msr-run-block>`. If for each run of the 
+msr file an individual fit range should be used, the third option applies. Here **n** has to correspond to the number of runs in the RUN block. 
+
+As for the run block, there is a 2\ :sup:`nd` flavor how the **FIT_RANGE** can be changed, namely giving the fit range in bins, 
+*i.e.* **FIT_RANGE [ RESET | fgb+<n0> lgb-<n1> | fgb+<n00> lgb-<n01> fgb+<n10> lgb-<n11> ... fgb+<nN0> lgb-<nN1> ]** where **N** is the number of available run blocks. 
+The idea is inline with the above syntax and the syntax describe for the fit range (fit) of the :ref:`RUN block <msr-run-block>`. 
+
+A typical example could look like:
+
+::
+
+  COMMANDS
+  FIT_RANGE 0.0 0.8
+  MINIMIZE
+  FIT_RANGE RESET
+  MINIMIZE
+  MINOS
+  SAVE
+
+or
+
+::
+
+  COMMANDS
+  FIT_RANGE fgb+15 lgb-1332 fgb+17 lgb-1330
+  MINIMIZE
+  FIT_RANGE RESET
+  MINIMIZE
+  MINOS
+  SAVE
+  
+The command **SCALE_N0_BKG TRUE | FALSE** is only used in conjunction with single-histogram fits. 
+The default is **SCALE_N0_BKG TRUE** which will result in a scaling of *N(t)* such that it is given in ns\ :sup:`-1`, whereas with **SCALE_N0_BKG FALSE** 
+*no scaling* is performed and *N(t)* will be given in bin\ :sup:`-1`. If the command is not present at all, it will be interpreted as if **SCALE_N0_BKG TRUE** was present.
+
+For "debug" purposes it is possible to force MINUIT2 to print out additional information. The COMMAND block command is **PRINT_LEVEL <n>**, 
+where **<n>** can have the values 0,1,2, or 3. A typical example could look like:
+
+::
+
+  COMMANDS
+  MIGRAD
+  SAVE
+  PRINT_LEVEL 2
+  MINOS
+  SAVE
+
+Here the MINOS command will print out lot of additional information to the standard output. Notice there are 2 SAVE commands here. This will write the result of 
+MIGRAD to the MINUIT2.OUTPUT file and at the end append the MINOS results to this file.  
+  
+The command **SECTOR <list-of-sector-times>**, where ``<list-of-sector-times>`` is a list of time values (space or comma separated) which have to range between the fit-start-time and the fit-end-time, allows to report :math:`\chi^2` and maxLH values for sub-intervals of the given fit-range. Its only purpose is for a statistical analysis of complicated fits. The results will be written to the ``MINUIT2.OUTPUT`` file.
+
+An example might look like this (assuming a fit-range from 0.005 to 10 us):
+
+::
+
+  COMMANDS
+  MINIMIZE
+  MINOS
+  SECTOR 5.0, 7.5, 9.0
+  SAVE
+
+*Note:* If a fit is invoked, the sector command results will only be written to file, if the fit *has converged*!
+
+.. index:: msr-commands-block-dks
+.. _msr-commands-block-dks:
+
+DKS extensions of the COMMANDS block enabling GPU and general OpenCL support
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+In case you are running the musrfit / DKS version, there are a couple commands which allow you to control the way how the fit shall be performed. These commands are: 
+
+============== ===========================================================================================================
+Command        Purpose
+============== ===========================================================================================================
+**OpenMP**     tries to run multi-threading via OpenMP if available
+**CUDA**       tries to run the fit on a NVIDIA card as *e.g.* the Tesla K40c 
+**OpenCL-CPU** tries to run multi-threading via OpenCL on the CPU. This is useful for macOS 
+**OpenCL-GPU** tries to run multi-threading via OpenCL on the GPU. This is used for AMD cards, but also works for NVIDIA 
+============== ===========================================================================================================
+
+**OpenMP** is the default if none of these tags are found in the COMMANDS block. 
+
+In case the defined THEORY is *not* ready to run on the accelerator, ``musrfit`` will fall back to the default behavior. 
+In the :ref:`THEORY table <msr-theory-block>` all the functions which are currently *not* GPU ready are labeled by "not DKS ready" in the reference column or corresponding footnote. 
+
+.. index:: msr-fourier-block
+.. _msr-fourier-block:
+
+The FOURIER Block 
++++++++++++++++++
+
+If a Fourier transform is carried out the results are plotted within ``musrview``. As input data the actual data *shown* in ``musrview`` is used, 
+*i.e.* the currently time range shown in ``musrview``! In the FOURIER block of the msr file all necessary parameters for calculating and presenting 
+the Fourier transform of the data specified in the :ref:`PLOT block <msr-plot-block>` is given. If the FOURIER block is not present in the msr file, 
+either the parameters set in the :ref:`XML startup <musrfit-startup>` file or the system defaults are taken when the Fourier transform is performed. 
+The block starts with the *FOURIER* keyword and may contain the following entries on the successive lines: 
+
+.. index:: fourier-block-units
+.. _msr-fourier-block-units:
+
+**units**
+  Here is specified in which domain the Fourier-transformed data is presented. One may choose between the fields (*Gauss*) or (*Tesla*), the frequency (*MHz*), and the angular-frequency domain (*Mc/s*). 
+  
+.. index:: fourier-block-fourier_power
+.. _msr-fourier-block-fourier_power:
+
+**fourier_power**  
+  It is possible (but not necessary) to set the number of data points used for the Fourier transform here. As argument the exponent *n<21* of a power of 2 is accepted. 
+  The number of data points is then 2\ :sup:`n`. **Attention:** If the number of points given here is bigger than the actual number of available data points, 
+  the input data vector is filled with zeros until the number of requested points is reached (*zero padding*)! 
+
+.. index:: fourier-block-dc-corrected
+.. _msr-fourier-block-dc-corrected:
+
+**dc-corrected**
+  a flag to remove a potential DC-offset of the signal. Allowed entries are ``dc-corrected true | 1 | false | 0``. 
+  
+.. index:: fourier-block-apodization
+.. _msr-fourier-block-apodization:
+
+**apodization** 
+  Here is decided if the data should be apodized before the Fourier transform is performed and if yes, which apodization should be used (for further details about apodization of 
+  |mgr|\SR data refer to the `PhD thesis of T.M. Riseman (UBC) <https://open.library.ubc.ca/cIRcle/collections/ubctheses/831/items/1.0085550>`_). The argument to be put after the 
+  keyword is therefore one of the following: **NONE, WEAK, MEDIUM** or **STRONG**. If the data should be apodized, they are manipulated as follows: each data value is multiplied by the function
+
+  .. math::
+
+     \sum_{k=0}^4 c_k \left(\frac{i}{n}\right)^{2k},
+   
+  where *i* is the data-point index and *n* is the total number of data points. The coefficients *c*\ :sub:`j` for the different apodizations are given by:
+  
+  **WEAK**
+    :math:`c_0 = 1.0,\, c_1 = -1.319391,\, c_2 = 0.703484,\, c_3=c_4=0.0`
+  **MEDIUM**
+    :math:`c_0 = 1.0,\, c_1 = -1.831292,\, c_2 = 0.983734,\, c_3=c_4=0.0`
+  **STRONG**
+    :math:`c_0 = 1.0,\, c_1 = -2.708894,\, c_2 = 2.953575,\, c_3=-1.599128,\, c_4=0.399782`
+  
+.. index:: fourier-block-plot
+.. _msr-fourier-block-plot:
+
+**plot**  
+  At this point it is possible to set the part of the Fourier-transformed data which should be plotted by default if the Fourier transform is done by pressing the *f*-key in ``musrview``. 
+  The argument may be one of the following: 
+  
+  **real**
+    The real part of the (complex) Fourier transform is plotted. 
+  **imag**
+    The imaginary part of the Fourier transform is plotted. 
+  **real_and_imag**
+    Both the real and the imaginary parts of the Fourier transform are shown. 
+  **power**
+    The absolute value of the Fourier transform is depicted. 
+  **phase**
+    The phase of the Fourier transform is plotted. 
+
+.. index:: fourier-block-phase
+.. _msr-fourier-block-phase:
+
+**phase**
+  If a real Fourier shall be plotted, it is necessary to adopt the phases of the different detectors. The number of potentially provided phases can be either **one**, which means that this phase will be applied to *all* Fourier spectra, 
+  or the number of phases have to correspond to the number of runs in the plot block.
+  
+  Currently there are three options:
+  
+  #. The phases for each run/detector are given explicitly, *i.e.* 
+  
+     .. code-block:: bash
+     
+        phase val0 sep val1 sep ... sep valN
+        
+     where ``val0``, ``val1``, etc. are explicitly given phases (*i.e.* doubles), and ``sep`` is one of the following allowed separators: ``space``, ``,``, ``;``, or ``tab``.
+     For example
+     
+     .. code-block:: bash
+     
+        phase   -3.2, 175.9
+        
+  #. The phases for each run/detector are given as phase parameter from the :ref:`FITPARAMETER block <msr-fitparameter-block>`, *e.g.* par3, which would 
+     take the value of parameter number 3. More explicitly
+     
+     .. code-block:: bash
+     
+        phase parX0 sep parX1 sep ... sep parXN
+        
+     where the same rules applies as for explicit phase values. An example could look like this
+     
+     .. code-block:: bash
+     
+        phase par7, par12, par17, par22, par27, par32, par37, par42, par47, par52, par57, par62, par67, par72, par77, par82
+        
+     One might prefer to express the phases in respect to a reference counter, *e.g.* the forward counter is the reference counter phase (fcp) whereas
+     the backward counter phase (bcp) is expressed as bcp = fcp + relative_bcp. If the fitting is done along these lines, the phases in the Fourier
+     block can be expressed the following way
+     
+     .. code-block:: bash
+     
+        phase parRX0 sep parX1 sep ... sep parXN
+        
+     which means that ``X0`` is the reference phase, and all the other phases are relative phases in respect to ``X0``, *i.e.* the absolut phase of
+     ``Xj`` would be the summ of the values of ``parX0`` and ``parXj`` etc. The reference phase in the list is marked by ``parR`` rather than ``par``.
+     Obviously only *one* reference phase can be defined!
+  
+  #. Often the phases in the parameter block follow a clear list structure. This allows to write the Fourier phase parameters in a more compact form
+  
+     .. code-block:: none
+     
+        phase par(X0, offset, #param)
+        
+     with ``X0`` the first phase parameter index, ``offset`` being the offset to the next phase parameter, and ``#param`` being the number of phase parameters to be used.
+     This means that the previous example can be compacted to
+     
+     .. code-block:: none
+     
+        phase par(7, 5, 16)
+        
+     As in the phase parameter list examples before, also here a reference phase with relative phases might be wished. Differently to the phase parameter
+     list example, the first parameter number will be the reference phase. The compact notation here is
+     
+     .. code-block:: none
+     
+        phase parR(X0, offest, #param)
+  
+.. index:: fourier-block-range_for_phase_correction
+.. _msr-fourier-block-range_for_phase_correction:
+
+**range_for_phase_correction**
+  An interval in Fourier space given in units as define with the 'units' tag, or the tag 'all' in which case the range given under 'range' will be used. 
+  The given interval will be used for an automatic phasing of the real Fourier transform. This will allow to add real Fourier spectra coherently.   
+
+.. index:: fourier-block-range
+.. _msr-fourier-block-range:
+
+**range**  
+  The plotting range is set here. The interval is specified through its start and end points given in the *units* set after the **units** tag. 
+  
+Altogether, a possible FOURIER block might look like that: 
+
+::
+
+  FOURIER
+  units Mc/s
+  fourier_power 12
+  apodization NONE
+  plot real_and_imag
+  phase par5, par8
+  range 0.0 17.03
+  
+.. index:: msr-plot-block
+.. _msr-plot-block:
+
+The PLOT Block
+++++++++++++++
+
+The PLOT block is intended to collect all the information needed for the graphical presentation of the data and fits using ``musrview``. 
+The PLOT keyword at the beginning of the block is followed by a number which indicates the plot type. The plot types have to match the :ref:`fit types <fit-types>`. 
+Additionally, it is possible to provide information using the following keywords: 
+
+.. index:: msr-plot-block-lifetimecorrection
+.. _msr-plot-block-lifetimecorrection:
+
+**lifetimecorrection**
+  Does not accept any arguments. If present, the output in ``musrview`` is corrected for the exponential decay of the muon. Only relevant for (type 0). 
+
+.. index:: msr-plot-block-runs
+.. _msr-plot-block-runs:
+
+**runs**
+  The numbers of the runs to be plotted have to be put here. The runs are numbered according to their appearance in the :ref:`RUN block <msr-run-block>`.
+  The numbers is either a space separated list of numbers, an interval *e.g.* 1-16, or a combination of both.
+  
+.. index:: msr-plot-block-range
+.. _msr-plot-block-range:
+
+**range**
+  Here it is possible to define the plotting range explicitly. Depending on the plot type the following settings are allowed where the times are given in 
+  micro-seconds and the *N* in counts (types 0-4) or in counts/nsec (type 0, 1): 
+  
+  fit type 0-4 *without* lifetimecorrection:
+    *t*\ :sub:`min` *t*\ :sub:`max` [ *N*\ :sub:`min` *N*\ :sub:`max` ] 
+  fit type 0-3 *with* lifetimecorrection:
+    *t*\ :sub:`min` *t*\ :sub:`max` [ *A*\ :sub:`min` *A*\ :sub:`max` ] 
+  fit type 8:
+    *x*\ :sub:`min` *x*\ :sub:`max` [ *y*\ :sub:`min` *y*\ :sub:`max` ]
+    
+.. index:: msr-plot-block-sub_ranges
+.. _msr-plot-block-sub_ranges:
+
+**sub_ranges**    
+  Here it is possible to define the plotting range for each run individually. For the different plot types the command has the structure: 
+  
+  fit type 0-4 *without* lifetimecorrection:
+    *t*\ :sup:`1`\ :sub:`min`  *t*\ :sup:`1`\ :sub:`max` *t*\ :sup:`2`\ :sub:`min` *t*\ :sup:`2`\ :sub:`max` ... *t*\ :sup:`n`\ :sub:`min` *t*\ :sup:`n`\ :sub:`max` [ *N*\ :sub:`min` *N* :sub:`max` ] (n = the number of runs to be plotted) 
+  fit type 0-3 *with* lifetimecorrection:
+    *t*\ :sup:`1`\ :sub:`min`  *t*\ :sup:`1`\ :sub:`max` *t*\ :sup:`2`\ :sub:`min` *t*\ :sup:`2`\ :sub:`max` ... *t*\ :sup:`n`\ :sub:`min` *t*\ :sup:`n`\ :sub:`max` [ *A*\ :sub:`min` *A* :sub:`max` ] (n = the number of runs to be plotted) 
+  fit type 8:
+    *not yet implemented*
+    
+.. index:: msr-plot-block-use_fit_ranges
+.. _msr-plot-block-use_fit_ranges:
+
+**use_fit_ranges** [ *y*\ :sub:`min` *y*\ :sub:`max` ]
+    The fit ranges of the individual runs are used to present the data. Optionally, an ordinate range can be provided.     
+
+.. index:: msr-plot-block-view_packing
+.. _msr-plot-block-view_packing:
+
+**view_packing**     
+  The data are presented in the packing given here rather than the binning used for the fit. **WARNING:** This is a global option and applies to all PLOT-blocks. 
+  
+.. index:: msr-plot-block-logx
+.. _msr-plot-block-logx:
+
+**logx**
+  Will present the time axis in a logarithmic scale. *So far no checking of negative and zero-valued data is performed, hence expect interesting output!* 
+  
+.. index:: msr-plot-block-logy
+.. _msr-plot-block-logy:
+
+**logy**
+  Will present the axis of ordinates in a logarithmic scale. *So far no checking of negative and zero-valued data is performed, hence expect interesting output!*
+  
+.. index:: msr-plot-block-rrf_packing
+.. _msr-plot-block-rrf_packing:
+
+**rrf_packing** value
+  In the rotating-reference-frame (RRF) representation, this will be the value for the packing. **WARNING:** For the time being, this is a global option and applies to all PLOT blocks.   
+  
+.. index:: msr-plot-block-rrf_freq
+.. _msr-plot-block-rrf_freq:
+
+**rrf_freq** value unit
+  This entry provides the RRF "frequency" given by the value and the unit which can be: *kHz*, *MHz*, *Mc/s*, *G*, or *T*. 
+
+.. index:: msr-plot-block-rrf_phase
+.. _msr-plot-block-rrf_phase:
+
+**rrf_phase** value
+  A phase of the RRF can be provided, either as a value in degrees, or as a parX, *e.g.* par4, where 'X' is supposed to be the phase parameter number in the :ref:`FITPARAMETER block <msr-fitparameter-block>`. 
+
+**Notes:**
+  * If no plot range is given at all, the fit range of the first run also serves as time window for the plot.   
+  * In the case no information on the axis of ordinates is available, the plotting range is chosen so that all data can be presented.
+  * It is possible to define multiple PLOT blocks. Each PLOT block generates its own ROOT canvas.
+
+A typical PLOT block could look like 
+
+::
+
+  ###############################################################
+  PLOT 0   (single histo plot)
+  lifetimecorrection
+  runs    1-16   
+  range   0   9.07   -0.5   0.5
+
+A few comments concerning the rotating reference frame (rrf) plot option: the idea of the rrf is to transform a high frequency 
+|mgr|\SR spectrum into a low frequency spectrum. This is essentially done by multiplying the original asymmetry 
+:math:`A(t)` by :math:`\cos(\omega_{\rm rrf} t + \phi_{\rm rrf})`. This leads to two frequency shifted copies of the original 
+:math:`A(t)`, one shifted downwards in frequency by :math:`\omega_{\rm rrf}` (the wanted one) and one upwards (the unwanted one). 
+In order to get rid of the upward shifted spectrum, the **rrf_packing** is used, we just over-bin the high frequency copy.
+The theory, however, is filtered via `Kaiser filter <https://en.wikipedia.org/wiki/Kaiser_window>`_. Here a short example: 
+
+::
+
+  ###############################################################
+  PLOT 1   (single histo RRF plot)
+  runs     1   
+  range    0   10   -0.3   0.3
+  rrf_freq 13900 G
+  rrf_packing 75
+    
+.. index:: msr-statistc-block
+.. _msr-statistic-block:
+
+The STATISTIC Block
++++++++++++++++++++
+
+The STATISTIC block is the last block of a msr file. It contains some information on the fit: the date and time as well as 
+the absolute and normalized values of :math:`\chi^2` and the number of degrees of freedom in the fit.
+If enabled in the :ref:`XML file <musrfit-startup>` for :math:`\chi^2`-single-histogram fits also `Pearson's`_ 
+:math:`\chi^2` will be written to the STATISTIC block.
+
+*These information only have a meaning if the fitting procedure has been executed at least once and the fit has converged!* 
+
+.. index:: fit-types
+.. _fit-types:
+
+Fit Types
+---------
+
+.. index:: single-histogram-fit
+.. _single-histogram-fit:
+
+Single Histogram Fit (fit type 0)
++++++++++++++++++++++++++++++++++
+
+The single-histogram fit (fit type 0) is used to fit a function directly to the raw data using
+
+.. math::
+   N(t) = N_0 e^{-t/\tau_\mu} [ 1 + A(t) ] + N_{\rm bkg}
+   
+The parameters are given by:
+  * :math:`N(t)`: rebinned decay histograms
+  * :math:`N_0`: normalization constant of the histogram (RUN block: :ref:`norm <msr-norm>`)
+  * :math:`\tau_\mu`: lifetime of the muon (RUN block: :ref:`lifetime <msr-lifetime>`)
+  * :math:`N_{\rm bkg}`: constant background (RUN block: :ref:`backgr.fit <msr-backgr.fit>`, :ref:`backgr.fix <msr-backgr.fix>`,  or :ref:`background <msr-background-single-histo>`)  
+  * :math:`A(t)`: decay asymmetry/depolarization function as given in the :ref:`THEORY block <msr-theory-block>`)
+
+In the plot type 0 without ``lifetimecorrection`` the rebinned histogram and the function *N(t)* written above are presented. 
+If the option lifetimecorrection is *set* in the PLOT block the asymmetry is plotted: 
+
+.. math::
+   A(t) = \frac{N(t) - N_{\rm bkg}}{N_0} e^{+t/\tau_\mu} - 1 
+
+.. index:: single-histogram-rrf-fit
+.. _single-histogram-rrf-fit:
+
+Single Histogram RRF Fit (fit type 1)
++++++++++++++++++++++++++++++++++++++
+
+The single-histogram RRF fit (fit type 1) is used to fit the rotating reference frame asymmetry :math:`A_{\rm rrf}(t)` extracted from the raw data. 
+The currently implemented version will fail at low fields/frequencies (for about < 1 Tesla). The same is true, if multiple frequencies with large 
+enough separation are present, *e.g.* when dealing with muonium. :math:`A_{\rm rrf}(t)` is estimated the following way (for more details see the 
+RRF memo (<musrfit>/doc/memos/rrf/rrf-notes.pdf)):
+
+  #. define the background :math:`N_{\rm bkg}`, and subtract it from the raw histogram. 
+  #. calculate the property :math:`M(t) = [N(t)-N_{\rm bkg}] \exp(+t/\tau)`. 
+  #. estimate :math:`N_0`. This is the most tricky part. From this calculate :math:`A(t) = M(t)/N_0 -1`. 
+  #. now the RRF transformation takes place: :math:`A_{\rm rrf}(t) = 2 \cos(\omega_{\rm rrf} t + \phi_{\rm rrf}) A(t)`. 
+     In Fourier space this is leading to :math:`[A(\omega-\omega_{\rm rrf})+A(\omega+\omega_{\rm rrf})]`.
+  #. in order to get rid if the :math:`A(\omega+\omega_{\rm rrf})` component, :math:`A_{\rm rrf}(t)` is over-binned 
+     by the :ref:`rrf_packing <msr-plot-block-rrf_packing>`. This results in a signal :math:`\langle A_{\rm rrf}(t) \rangle_{p}` 
+     which ideally is :math:`A(t)` shifted down in frequency by :math:`\omega_{\rm rrf}`. 
+
+The single histogram RRF fit was introduced for online analysis **only**. It is leading to many uncontrolled effects like ghost lines due to imperfection 
+of the :math:`N_0` estimate, line shape distortion due to dispersive filtering originating from the packing, back folding problems if 
+:math:`\omega_{\rm rrf}` is not properly chosen, the error estimates on the fitted parameters is substantially worse, *etc.* 
+**In summary: if you not urgently need it: do not use it! There are better ways to deal with the analysis of high frequency data!**
+For more details see the rrf-memo found in the source code under <musrfit>/doc/memo/rrf/rrf-notes.pdf or `Musrfit–Real Time Parameter Fitting Using GPUs <http://dx.doi.org/10.7566/JPSCP.21.011051>`_
+
+.. index:: asymmetry-fit
+.. _asymmetry-fit:
+
+Asymmetry Fit (fit type 2)
+++++++++++++++++++++++++++
+
+For an asymmetry fit (fit type 2) two histograms are needed. These are given by the :ref:`forward <msr-forward-backward>` and :ref:`backward <msr-forward-backward>` keywords 
+in the :ref:`RUN block <msr-run-block>`. Additionally, the parameters :ref:`alpha <msr-alpha-beta>` and :ref:`beta <msr-alpha-beta>` which relate the detector 
+efficiencies, solid angles and initial asymmetries of the two detectors can be supplied. The constant background for the two histograms is either given by 
+:ref:`background-determined intervals <msr-background-asymmetry>` or specified through :ref:`backgr.fix <msr-backgr.fix>` in the :ref:`RUN-block <msr-run-block>`. 
+
+The experimental asymmetry :math:`a(k)` then is inferred from the two histograms:
+
+.. math::
+
+   a(k)=\frac{\left[N_{\mathrm{f}}(k)-B_{\mathrm{f}}\right]-\left[N_{\mathrm{b}}(k)-B_{\mathrm{b}}\right]}{\left[N_{\mathrm{f}}(k)-B_{\mathrm{f}}\right]+\left[N_{\mathrm{b}}(k)-B_{\mathrm{b}}\right]},
+   
+with
+
+   * :math:`N_{\mathrm{f}}(k)`: counts in the **forward** histogram channel :math:`k`
+   * :math:`N_{\mathrm{b}}(k)`: counts in the **backward** histogram channel :math:`k`
+   * :math:` B_{\mathrm{f}}`: constant background in the **forward** histogram (RUN block: :ref:`backgr.fix <msr-backgr.fix>` or :ref:`background <msr-background-asymmetry>`) 
+   * :math:` B_{\mathrm{b}}`: constant background in the **backward** histogram (RUN block: :ref:`backgr.fix <msr-backgr.fix>` or :ref:`background <msr-background-asymmetry>`) 
+   
+This theoretical asymmetry :math:`a(t)` is used to fit the function   
+
+.. math::
+
+   a(t)=\frac{(\alpha\beta +1)A(t)-(\alpha -1)}{(\alpha +1)-(\alpha\beta -1)A(t)}, 
+    
+where
+
+   * :math:`\alpha`: accounts for the different detector efficiencies and solid angles (RUN block: :ref:`alpha <msr-alpha-beta>`).
+   * :math:`\beta`: accounts for the different detector asymmetries (RUN block: :ref:`beta <msr-alpha-beta>`).
+   * :math:`A(t)`: is the depolarization function as given in the :ref:`THEORY block <msr-theory-block>`.
+   
+For the graphical representation in plot type 2 the equation above is rearranged to get :math:`A(t)`:   
+
+.. math::
+
+    A(t)=\frac{(\alpha -1)+(\alpha +1)a(t)}{(\alpha\beta +1)+(\alpha\beta -1)a(t)}=\frac{\alpha\left[N_{\mathrm{f}}(t)-B_{\mathrm{f}}\right]-\left[N_{\mathrm{b}}(t)-B_{\mathrm{b}}\right]}{\alpha\beta\left[N_{\mathrm{f}}(t)-B_{\mathrm{f}}\right]+\left[N_{\mathrm{b}}(t)-B_{\mathrm{b}}\right]} 
+    
+and plotted together with the function given in the THEORY block.     
+
+.. index:: asymmetry-rrf-fit
+.. _asymmetry-rrf-fit:
+
+Asymmetry RRF Fit (fit type 3)
+++++++++++++++++++++++++++++++
+
+For asymmetry RRF Fit (fit type 3) two histograms are needed. In a first step, the unbinned asymmetry is formed as described for the asymmetry fit. 
+Afterwards the RRF transformation is carried out, *i.e.* point 4. and 5. as sketched in the single histogramm RRF fit. The same reservations as for 
+the single histogram RRF fit apply: **if you not urgently need it: do not use it! There are better ways to deal with the analysis of high frequency data!**
+
+.. index:: negative-muon-musr-fit
+.. _negative-muon-musr-fit:
+
+Negative Muon |mgr|\SR Fit (fit type 4)
++++++++++++++++++++++++++++++++++++++++
+
+The negative muon |mgr|\SR fit (fit type 4) is used for single histogram fits of MuMinus, *i.e.*
+
+.. math::
+
+   N(t) = \sum_i N_i\,\mathrm{e}^{-t/\tau_i} \left[ 1 + A_i(t)\right] + N_{\rm bkg}(t) 
+
+where :math:`i` runs over the different lifetime channels of :math:`\mu^{-}`, and 
+   
+   * :math:`N_i`: counts of lifetime channel :math:`i`
+   * :math:`\tau_i`: lifetime of lifetime channel :math:`i` 
+   * :math:`A_i(t)`: depolarization function of lifetime channel :math:`i`
+   * :math:`N_{\rm bkg}(t)`: :math:`N_{\rm bkg}(t)= N_{\rm bkg,0} + \sum_k N_{\rm bkg,k} \cos(k \omega_{\rm cyclotron} t)` the background 
+   
+Since MuMinus is quite generic, the full functional depends has to be written in the :ref:`THEORY Block <msr-theory-block>`.
+   
+.. index:: bnmr-asymmetry-fit
+.. _bnmr-asymmetry-fit:
+
+beta-NMR Asymmetry Fit (fit type 5)
++++++++++++++++++++++++++++++++++++
+
+Four histograms are needed for a beta-NMR asymmetry fit (fit type 5), two for positive helecity and two for negative. These are given by the :ref:`forward <msr-forward-backward>` and :ref:`backward <msr-forward-backward>` keywords 
+in the :ref:`RUN block <msr-run-block>`. Additionally, the parameters :ref:`alpha <msr-alpha-beta>` and :ref:`beta <msr-alpha-beta>` which relate the detector 
+efficiencies, solid angles and initial asymmetries of the two detectors can be supplied. The constant background for the two histograms is either given by 
+:ref:`background-determined intervals <msr-background-asymmetry>` or specified through :ref:`backgr.fix <msr-backgr.fix>` in the :ref:`RUN-block <msr-run-block>`. 
+
+The experimental asymmetry :math:`a(k)` is then calculated from the four histograms:
+
+.. math::
+
+   a(k)=\frac{\left[N_{\mathrm{fp}}(k)-B_{\mathrm{fp}}\right]-\left[N_{\mathrm{bp}}(k)-B_{\mathrm{bp}}\right]}{\left[N_{\mathrm{fp}}(k)-B_{\mathrm{fp}}\right]+\left[N_{\mathrm{bp}}(k)-B_{\mathrm{bp}}\right]}
+   - \frac{\left[N_{\mathrm{fm}}(k)-B_{\mathrm{fm}}\right]-\left[N_{\mathrm{bm}}(k)-B_{\mathrm{bm}}\right]}{\left[N_{\mathrm{fm}}(k)-B_{\mathrm{fm}}\right]+\left[N_{\mathrm{bm}}(k)-B_{\mathrm{bm}}\right]},
+   
+with
+
+   * :math:`N_{\mathrm{fp}}(k)`: counts in the **forward** histogram channel with positive helicity :math:`k`
+   * :math:`N_{\mathrm{bp}}(k)`: counts in the **backward** histogram channel with positive helicity :math:`k`
+   * :math:`B_{\mathrm{fp}}`: constant background in the **forward** histogram with positive helicity (RUN block: :ref:`backgr.fix <msr-backgr.fix>` or :ref:`background <msr-background-asymmetry>`) 
+   * :math:`B_{\mathrm{bp}}`: constant background in the **backward** histogram with positive helicity (RUN block: :ref:`backgr.fix <msr-backgr.fix>` or :ref:`background <msr-background-asymmetry>`) 
+   * :math:`N_{\mathrm{fm}}(k)`: counts in the **forward** histogram channel with negative helicity :math:`k`
+   * :math:`N_{\mathrm{bm}}(k)`: counts in the **backward** histogram channel with negative helicity :math:`k`
+   * :math:`B_{\mathrm{fm}}`: constant background in the **forward** histogram with negative helicity (RUN block: :ref:`backgr.fix <msr-backgr.fix>` or :ref:`background <msr-background-asymmetry>`) 
+   * :math:`B_{\mathrm{bm}}`: constant background in the **backward** histogram with negative helicity (RUN block: :ref:`backgr.fix <msr-backgr.fix>` or :ref:`background <msr-background-asymmetry>`) 
+   
+This theoretical asymmetry :math:`a(t)` is used to fit the function   
+
+.. math::
+
+   a(t)=\frac{(\alpha\beta +1)A(t)-(\alpha -1)}{(\alpha +1)-(\alpha\beta -1)A(t)} - \frac{(\alpha -1)-(\alpha\beta 1)A(t)}{(\alpha +1)+(\alpha\beta -1)Am(t)}, 
+    
+where
+
+   * :math:`\alpha`: accounts for the different detector efficiencies and solid angles (RUN block: :ref:`alpha <msr-alpha-beta>`).
+   * :math:`\beta`: accounts for the different detector asymmetries (RUN block: :ref:`beta <msr-alpha-beta>`).
+   * :math:`A(t)`: is the depolarization function as given in the :ref:`THEORY block <msr-theory-block>`.
+   
+For the graphical representation in plot type 5 the equation above is rearranged to get :math:`A(t)`:   
+
+.. math::
+
+    A(t) &= \frac{(\alpha -1)+(\alpha +1)a(t)}{(\alpha\beta+1)+(\alpha\beta -1)a(t)}-\frac{(\alpha +1)a(t)-(\alpha-1)}{(\alpha\beta +1)+(1-\alpha\beta)a(t)} \\
+    &= \frac{\alpha\left[N_{\mathrm{fp}}(t)-B_{\mathrm{fp}}\right]-\left[N_{\mathrm{bp}}(t)-B_{\mathrm{bp}}\right]}{\alpha\beta\left[N_{\mathrm{fp}}(t)-B_{\mathrm{fp}}\right]+\left[N_{\mathrm{bp}}(t)-B_{\mathrm{bp}}\right]} -\frac{\alpha\left[N_{\mathrm{fm}}(t)-B_{\mathrm{fm}}\right]-\left[N_{\mathrm{bm}}(t)-B_{\mathrm{bm}}\right]}{\alpha\beta\left[N_{\mathrm{fm}}(t)-B_{\mathrm{fm}}\right]+\left[N_{\mathrm{bm}}(t)-B_{\mathrm{bm}}\right]}
+    
+and plotted together with the function given in the THEORY block.     
+
+    
+.. index:: non-musr-fit
+.. _non-musr-fit:
+
+Non-|mgr|\SR Fit (fit type 8)
++++++++++++++++++++++++++++++
+
+In the case of a non-|mgr|\SR fit (fit type 8) the fitting function is 
+
+.. math::
+
+   y = f(x),
+   
+where :math:`x, y` are given by :ref:`xy-data <msr-xy-data>` in the :ref:`RUN block <msr-run-block>`, and :math:`f(x)` is the function defined in the :ref:`THEORY block <msr-theory-block>`. 
+
+The same applies for the plot with plot type 8. 
+
+.. index:: user-functions
+.. _user-functions:
+
+User Functions
+--------------
+
+``musrfit`` offers the possibility to plug-in user-defined functions implemented in ``C++`` classes to the fitting and plotting routines. 
+In order to do so, basically two things are needed: 
+
+  #. a shared library containing the compiled class with the defined function.
+  #. a `ROOT dictionary <https://root.cern.ch/interacting-shared-libraries-rootcling>`_ that contains information about the functions in the shared library.
+
+There are two possible ways to implement user functions and both will be explained below: 
+
+  #. a user function *without* global user-function-object access
+  #. a user function *with* global user-function-object access 
+  
+Since the first is simpler this will be explained using an explicit example, before it is discussed why the second option is needed and how it can be used. 
+
+.. index:: user-functions-without-global-part
+.. _user-functions-without-global-part:
+
+User Function without global user-function-object access
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+In the following it is explained in detail how the implementation of a user function is done using the simple example of :math:`f_a(x) = \sin(a x)/(a x)`, 
+where the parameter :math:`a` should be determined by the fit. Although not necessary for this simple example, the source code is split into two parts, 
+namely a header file ``TMyFunction.h`` containing the class declaration and a second file ``TMyFunction.cpp`` including the function implementation
+(the name of these files is your choice!). 
+
+To plug in the class to ``musrfit``, it is necessary that the class derives from the base class **PUserFcnBase** defined in the header file ``PUserFcnBase.h`` (which is a part of ``musrfit``). 
+In this abstract base class a function operator is defined that takes two arguments: the point where the function should be evaluated and a reference to a vector with all parameters of the function. 
+
+Therefore, the user's header file could look like the following:
+
+.. code-block:: c++
+
+  /*************************************************************************** 
+ 
+  TMyFunction.h 
+ 
+  ***************************************************************************/ 
+ 
+  #include "PUserFcnBase.h" 
+  #include <cassert> 
+  #include <cmath> 
+  #include <vector> 
+ 
+  using namespace std; 
+ 
+  class TMyFunction : public PUserFcnBase { 
+ 
+  public: 
+    // default constructor and destructor 
+    TMyFunction(){} 
+    ~TMyFunction(){} 
+ 
+    // global user-function-access functions, here without any functionality 
+    Bool_t NeedGlobalPart() const { return false; } 
+    void SetGlobalPart(vector<void*> &globalPart, UInt_t idx) { } 
+    Bool_t GlobalPartIsValid() const { return true; } 
+ 
+    // function operator 
+    Double_t operator()(Double_t, const vector<Double_t>&) const; 
+ 
+    // definition of the class for the ROOT dictionary 
+    ClassDef(TMyFunction,1) 
+  };
+  
+In the header file above the constructor (destructor) of the class is empty. This is not necessary, any code that should be executed when the 
+:ref:`RUN block <msr-run-block>` is read and the class object is created (destroyed) may be implemented in the constructor (destructor). 
+Another peculiarity is the ``ClassDef`` statement at the end of the class definition. It is needed for the ROOT dictionary generation 
+and has as arguments the class name and a revision number.   
+
+Please also be aware of the const-ness of the operator(). For an introductory discussion on that topic look for example `Const_correctness <http://en.wikipedia.org/wiki/Const_correctness>`_ and the links herein. 
+
+The actual implementation of the user function is done in the second source file. In this example it only contains the definition of the function operator() declared in the header file and might look like: 
+
+.. code-block:: c++
+
+  /*************************************************************************** 
+ 
+  TMyFunction.cpp 
+ 
+  ***************************************************************************/ 
+ 
+  #include "TMyFunction.h" 
+ 
+  ClassImp(TMyFunction)  // for the ROOT dictionary 
+ 
+  Double_t TMyFunction::operator()(Double_t x, const vector<Double_t> &par) const { 
+    assert(par.size()==1); // make sure the number of parameters handed to the function is correct 
+   
+    const Double_t eps = 1.0e-5;
+    Double_t arg(par[0]*x); 
+ 
+    if(arg < eps) 
+      return 1.0; 
+    return sin(arg)/arg; 
+  }
+  
+Also this file contains a special statement for the ROOT dictionary generation (``ClassImp``), which is placed before the definition of the function. 
+If functions of more than one class are defined in the file, the ``ClassImp`` statements for the other classes follow right after the first one.   
+
+What is further needed for the ``ROOT`` dictionary is a so-called LinkDef file which again contains the class names of all classes that should be accessible 
+through the dictionary and has the following structure, where the "LinkDef.h" (or "linkdef.h" or "Linkdef.h") at the end of the file name is mandatory: 
+
+.. code-block:: c++
+
+  /*************************************************************************** 
+ 
+  TMyLibraryLinkDef.h 
+ 
+  ***************************************************************************/ 
+ 
+  #ifdef __CINT__ 
+ 
+  #pragma link off all globals; 
+  #pragma link off all classes; 
+  #pragma link off all functions; 
+ 
+  #pragma link C++ class TMyFunction+; 
+ 
+  #endif //__CINT__ 
+
+For compiling and linking it is wise to use a Makefile as for example the attached :download:`Makefile.TMyLibrary <../add-ons/Makefile.TMyLibrary>`. It assumes standard ``ROOT`` and ``musrfit`` 
+installations and defines rules for the generation of the shared library **libTMyLibrary.so** including the class and the ROOT dictionary. In order 
+to get the library built and installed on the standard ROOT path just call: 
+
+.. code-block:: bash
+
+  $ make -f Makefile.TMyLibrary
+  $ make -f Makefile.TMyLibrary install
+
+In case of a custom installation some paths in the Makefile might have to be adopted. For further information about the ROOT dictionary mechanism please 
+refer to the `documentation <https://root.cern.ch/interacting-shared-libraries-rootcling>`_.   
+
+After installing the shared library the defined user function might be used in musrfit as described :ref:`above <msr-theory-block-user-functions>`.
+
+Finally, please be aware of the :ref:`remark <user-function-important>` at the end of this section. 
+
+.. index:: user-functions-with-global-part
+.. _user-functions-with-global-part:
+
+User Function with global user-function-object access
++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+Before explaining how to use global objects within user functions, it will be shortly explained where is the problem and why this might be a sensible approach. 
+In ``musrfit`` each :ref:`RUN block <msr-run-block>` (histogram, asymmetry, ...) is owning its own theory-function tree. An example is shown in the figure below. 
+The bluish nodes are default musrfit functions, whereas the red nodes represent user functions (here labeled by ``uF1`` and ``uF2``). Without global user-function 
+object, these nodes are independent entities. This means if the msr file contains *n* run blocks, the user function ``uF1`` will be called *n* times for each step 
+in the calculation. If the user function is performing CPU-demanding calculations this is rather inefficient.
+
+.. image:: ../images/theory-tree-with-user-fcn.*
+
+Therefore, it is possible to associate to each user function (``uFx``) a global user-function object (``g_uFx``). The idea is the following: If ``uFx`` needs to 
+perform very time-consuming calculations (*e.g.* calculate an Abrikosov vortex lattice or the nonlocal response of a superconductor in the Meissner state) this 
+can be transferred to the global user-function object (``g_uFx``) and hence the time-consuming calculation is only performed once per cycle (compared to *n* times 
+without ``g_uFx``), thus speeding up the fit.
+
+After explaining the purpose of the global user-function-object approach, some explanations how to interface it follow here. Since the interface is very close to 
+the :ref:`user function without global objects <user-functions-without-global-part>`, only the additionally necessary overhead is explained here.
+
+The user's header file could look like the following: 
+
+.. code-block:: c++
+
+  /***************************************************************************
+
+  TMyFunction.h
+
+  ***************************************************************************/
+
+  #include "PUserFcnBase.h"
+  #include <cassert>
+  #include <cmath>
+  #include <vector>
+
+  using namespace std;
+
+  class TMyGlobalFunction {
+
+  public:
+    // default constructor and destructor
+    TMyGlobalFunction(){}
+    ~TMyGlobalFunction(){}
+
+    Bool_t IsValid() { return fValid; } 
+
+    // the following function will check if something needs to be calculated, which 
+    // is the case if param != fPrevParam
+    void CalcSomethingCPUExpensive(const vector<Double_t> &param);
+
+    // this routine will return the calculated values, e.g. B(z,E) for TMyFunction::operator()()
+    // (...) here sketches only that some parameters are likley to be fed
+    Double_t GetWhatIsNeeded(...);
+
+  private:
+    Bool_t fValid;
+    vector<Double_t> fPrevParam;
+
+    // definition of the class for the ROOT-dictionary
+    ClassDef(TMyGlobalFunction,1)
+  };
+
+  class TMyFunction : public PUserFcnBase {
+
+  public:
+    // default constructor and destructor
+    TMyFunction(){}
+    ~TMyFunction(){}
+
+    // global user-function-access functions, here with some functionality
+    Bool_t NeedGlobalPart() const { return true; }
+    void SetGlobalPart(vector<void*> &globalPart, UInt_t idx);
+    Bool_t GlobalPartIsValid() const;
+
+    // function operator
+    Double_t operator()(Double_t, const vector<Double_t>&) const;
+
+  private:
+    Bool_t fValid;
+    Bool_t fInvokedGlobal;
+    Int_t  fIdxGlobal;
+    TMyGlobalFunction * fGlobalUserFcn;
+
+    // definition of the class for the ROOT dictionary
+    ClassDef(TMyFunction,1)
+  };
+
+Compared to the :ref:`user function without global objects <user-functions-without-global-part>`, here the ``NeedGlobalPart()`` method returns true 
+meaning that a global user-function object will be needed. Furthermore, the methods ``SetGlobalPart(vector<void*> &globalPart, UInt_t idx)`` and 
+``GlobalPartIsValid()`` now need to be implemented. The method ``SetGlobalPart(vector<void*> &globalPart, UInt_t idx)`` is used to link the 
+``fGlobalUserFcn`` to the global user object. This routine will look like: 
+
+.. code-block:: c++
+
+  void TMyFunction::SetGlobalPart(vector<void *> &globalPart, UInt_t idx)
+  {
+    fIdxGlobal = static_cast<Int_t>(idx);
+
+    if ((Int_t)globalPart.size() <= fIdxGlobal) { // global user function not present, invoke it
+      fGlobalUserFcn = new TMyGlobalFunction();
+      if (fGlobalUserFcn == 0) { // global user function object couldn't be invoked -> error
+        fValid = false;
+        cerr << endl << ">> TMyFunction::SetGlobalPart(): **ERROR** Couldn't invoke global user function object, sorry ..." << endl;
+      } else {  // global user function object could be invoked -> resize to global user function vector and keep the pointer to the corresponding object
+        globalPart.resize(fIdxGlobal+1);
+        globalPart[fIdxGlobal] = dynamic_cast<TMyGlobalFunction*>(fGlobalUserFcn);
+        fValid = true;
+        fInvokedGlobal = true;
+      }
+    } else { // global user function already present hence just retrieve a pointer to it
+      fValid = true;
+      fGlobalUserFcn = (TMyGlobalFunction*)globalPart[fIdxGlobal];
+    }
+  }
+
+What it does is the following: it first checks if the object is already present in the global user-function-object vector and if not creates it. If it is already present, 
+the pointer to the global object vector is just kept (see figure above). 
+
+A sketch of the method ``operator()(Double_t, const vector&) const`` will then look like (pseudo-code snippet): 
+
+.. code-block:: c++
+
+  Double_t TMyFunction::operator()(Double_t t, const vector<Double_t> &param) const
+  {
+    Double_t result = 0.0;
+
+    // do something, checking, etc.
+    ...
+
+    // call the global user function object (which will calculate something 
+    // if param has changed). Hence it will only be done once in a iteration, 
+    // and therefore only once for all run blocks.
+    fGlobalUserFcn->CalcSomethingCPUExpensive(param);
+
+    // extract the needed values from the global object
+    value(s) = fGlobalUserFcn->GetWhatIsNeeded(...);
+
+    // use 'value(s)' to do some run block specific calculations (not/less CPU demanding)
+    ...
+
+    return result;
+  }
+
+This way the efficiency of the user function can be increased by almost a factor of *n* (where *n* is the number of :ref:`RUN blocks <msr-run-block>`).   
+
+.. _user-function-important:
+.. note::
+
+  If ``musrfit`` has been built with parallelization support (default for ``GCC`` > 4.2) it should be taken care of the thread safety of the **user-function operator()**. 
+  During the function optimization of ``musrfit`` the operator() is called once for any given set of parameters in order to allow the safe execution of any calculation. 
+  Within the :ref:`single-histogram <single-histogram-fit>` and :ref:`asymmetry <asymmetry-fit>` fits the calculation of :math:`\chi^2` or the maximum log-likelihood is 
+  parallelized and the operator() is expected to evaluate to reasonable values for a fixed set of parameters (but changing *t*) beginning with the second function call. 
+  In case this cannot be ensured, the parallelization can be disabled by *--disable-omp* on the configure level of the program installation. 
+  
+.. index:: technical-musrfit
+.. _technical-musrfit:
+    
+Technical Description of the musrfit framework
+----------------------------------------------
+
+A technical description of the musrfit framework can be found on its own `docu <http://lmu.web.psi.ch/musrfit/technical/index.html>`_. 
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+/*
+ * websupport.js
+ * ~~~~~~~~~~~~~
+ *
+ * sphinx.websupport utilties for all documentation.
+ *
+ * :copyright: Copyright 2007-2014 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+(function($) {
+  $.fn.autogrow = function() {
+    return this.each(function() {
+    var textarea = this;
+
+    $.fn.autogrow.resize(textarea);
+
+    $(textarea)
+      .focus(function() {
+        textarea.interval = setInterval(function() {
+          $.fn.autogrow.resize(textarea);
+        }, 500);
+      })
+      .blur(function() {
+        clearInterval(textarea.interval);
+      });
+    });
+  };
+
+  $.fn.autogrow.resize = function(textarea) {
+    var lineHeight = parseInt($(textarea).css('line-height'), 10);
+    var lines = textarea.value.split('\n');
+    var columns = textarea.cols;
+    var lineCount = 0;
+    $.each(lines, function() {
+      lineCount += Math.ceil(this.length / columns) || 1;
+    });
+    var height = lineHeight * (lineCount + 1);
+    $(textarea).css('height', height);
+  };
+})(jQuery);
+
+(function($) {
+  var comp, by;
+
+  function init() {
+    initEvents();
+    initComparator();
+  }
+
+  function initEvents() {
+    $('a.comment-close').live("click", function(event) {
+      event.preventDefault();
+      hide($(this).attr('id').substring(2));
+    });
+    $('a.vote').live("click", function(event) {
+      event.preventDefault();
+      handleVote($(this));
+    });
+    $('a.reply').live("click", function(event) {
+      event.preventDefault();
+      openReply($(this).attr('id').substring(2));
+    });
+    $('a.close-reply').live("click", function(event) {
+      event.preventDefault();
+      closeReply($(this).attr('id').substring(2));
+    });
+    $('a.sort-option').live("click", function(event) {
+      event.preventDefault();
+      handleReSort($(this));
+    });
+    $('a.show-proposal').live("click", function(event) {
+      event.preventDefault();
+      showProposal($(this).attr('id').substring(2));
+    });
+    $('a.hide-proposal').live("click", function(event) {
+      event.preventDefault();
+      hideProposal($(this).attr('id').substring(2));
+    });
+    $('a.show-propose-change').live("click", function(event) {
+      event.preventDefault();
+      showProposeChange($(this).attr('id').substring(2));
+    });
+    $('a.hide-propose-change').live("click", function(event) {
+      event.preventDefault();
+      hideProposeChange($(this).attr('id').substring(2));
+    });
+    $('a.accept-comment').live("click", function(event) {
+      event.preventDefault();
+      acceptComment($(this).attr('id').substring(2));
+    });
+    $('a.delete-comment').live("click", function(event) {
+      event.preventDefault();
+      deleteComment($(this).attr('id').substring(2));
+    });
+    $('a.comment-markup').live("click", function(event) {
+      event.preventDefault();
+      toggleCommentMarkupBox($(this).attr('id').substring(2));
+    });
+  }
+
+  /**
+   * Set comp, which is a comparator function used for sorting and
+   * inserting comments into the list.
+   */
+  function setComparator() {
+    // If the first three letters are "asc", sort in ascending order
+    // and remove the prefix.
+    if (by.substring(0,3) == 'asc') {
+      var i = by.substring(3);
+      comp = function(a, b) { return a[i] - b[i]; };
+    } else {
+      // Otherwise sort in descending order.
+      comp = function(a, b) { return b[by] - a[by]; };
+    }
+
+    // Reset link styles and format the selected sort option.
+    $('a.sel').attr('href', '#').removeClass('sel');
+    $('a.by' + by).removeAttr('href').addClass('sel');
+  }
+
+  /**
+   * Create a comp function. If the user has preferences stored in
+   * the sortBy cookie, use those, otherwise use the default.
+   */
+  function initComparator() {
+    by = 'rating'; // Default to sort by rating.
+    // If the sortBy cookie is set, use that instead.
+    if (document.cookie.length > 0) {
+      var start = document.cookie.indexOf('sortBy=');
+      if (start != -1) {
+        start = start + 7;
+        var end = document.cookie.indexOf(";", start);
+        if (end == -1) {
+          end = document.cookie.length;
+          by = unescape(document.cookie.substring(start, end));
+        }
+      }
+    }
+    setComparator();
+  }
+
+  /**
+   * Show a comment div.
+   */
+  function show(id) {
+    $('#ao' + id).hide();
+    $('#ah' + id).show();
+    var context = $.extend({id: id}, opts);
+    var popup = $(renderTemplate(popupTemplate, context)).hide();
+    popup.find('textarea[name="proposal"]').hide();
+    popup.find('a.by' + by).addClass('sel');
+    var form = popup.find('#cf' + id);
+    form.submit(function(event) {
+      event.preventDefault();
+      addComment(form);
+    });
+    $('#s' + id).after(popup);
+    popup.slideDown('fast', function() {
+      getComments(id);
+    });
+  }
+
+  /**
+   * Hide a comment div.
+   */
+  function hide(id) {
+    $('#ah' + id).hide();
+    $('#ao' + id).show();
+    var div = $('#sc' + id);
+    div.slideUp('fast', function() {
+      div.remove();
+    });
+  }
+
+  /**
+   * Perform an ajax request to get comments for a node
+   * and insert the comments into the comments tree.
+   */
+  function getComments(id) {
+    $.ajax({
+     type: 'GET',
+     url: opts.getCommentsURL,
+     data: {node: id},
+     success: function(data, textStatus, request) {
+       var ul = $('#cl' + id);
+       var speed = 100;
+       $('#cf' + id)
+         .find('textarea[name="proposal"]')
+         .data('source', data.source);
+
+       if (data.comments.length === 0) {
+         ul.html('<li>No comments yet.</li>');
+         ul.data('empty', true);
+       } else {
+         // If there are comments, sort them and put them in the list.
+         var comments = sortComments(data.comments);
+         speed = data.comments.length * 100;
+         appendComments(comments, ul);
+         ul.data('empty', false);
+       }
+       $('#cn' + id).slideUp(speed + 200);
+       ul.slideDown(speed);
+     },
+     error: function(request, textStatus, error) {
+       showError('Oops, there was a problem retrieving the comments.');
+     },
+     dataType: 'json'
+    });
+  }
+
+  /**
+   * Add a comment via ajax and insert the comment into the comment tree.
+   */
+  function addComment(form) {
+    var node_id = form.find('input[name="node"]').val();
+    var parent_id = form.find('input[name="parent"]').val();
+    var text = form.find('textarea[name="comment"]').val();
+    var proposal = form.find('textarea[name="proposal"]').val();
+
+    if (text == '') {
+      showError('Please enter a comment.');
+      return;
+    }
+
+    // Disable the form that is being submitted.
+    form.find('textarea,input').attr('disabled', 'disabled');
+
+    // Send the comment to the server.
+    $.ajax({
+      type: "POST",
+      url: opts.addCommentURL,
+      dataType: 'json',
+      data: {
+        node: node_id,
+        parent: parent_id,
+        text: text,
+        proposal: proposal
+      },
+      success: function(data, textStatus, error) {
+        // Reset the form.
+        if (node_id) {
+          hideProposeChange(node_id);
+        }
+        form.find('textarea')
+          .val('')
+          .add(form.find('input'))
+          .removeAttr('disabled');
+	var ul = $('#cl' + (node_id || parent_id));
+        if (ul.data('empty')) {
+          $(ul).empty();
+          ul.data('empty', false);
+        }
+        insertComment(data.comment);
+        var ao = $('#ao' + node_id);
+        ao.find('img').attr({'src': opts.commentBrightImage});
+        if (node_id) {
+          // if this was a "root" comment, remove the commenting box
+          // (the user can get it back by reopening the comment popup)
+          $('#ca' + node_id).slideUp();
+        }
+      },
+      error: function(request, textStatus, error) {
+        form.find('textarea,input').removeAttr('disabled');
+        showError('Oops, there was a problem adding the comment.');
+      }
+    });
+  }
+
+  /**
+   * Recursively append comments to the main comment list and children
+   * lists, creating the comment tree.
+   */
+  function appendComments(comments, ul) {
+    $.each(comments, function() {
+      var div = createCommentDiv(this);
+      ul.append($(document.createElement('li')).html(div));
+      appendComments(this.children, div.find('ul.comment-children'));
+      // To avoid stagnating data, don't store the comments children in data.
+      this.children = null;
+      div.data('comment', this);
+    });
+  }
+
+  /**
+   * After adding a new comment, it must be inserted in the correct
+   * location in the comment tree.
+   */
+  function insertComment(comment) {
+    var div = createCommentDiv(comment);
+
+    // To avoid stagnating data, don't store the comments children in data.
+    comment.children = null;
+    div.data('comment', comment);
+
+    var ul = $('#cl' + (comment.node || comment.parent));
+    var siblings = getChildren(ul);
+
+    var li = $(document.createElement('li'));
+    li.hide();
+
+    // Determine where in the parents children list to insert this comment.
+    for(i=0; i < siblings.length; i++) {
+      if (comp(comment, siblings[i]) <= 0) {
+        $('#cd' + siblings[i].id)
+          .parent()
+          .before(li.html(div));
+        li.slideDown('fast');
+        return;
+      }
+    }
+
+    // If we get here, this comment rates lower than all the others,
+    // or it is the only comment in the list.
+    ul.append(li.html(div));
+    li.slideDown('fast');
+  }
+
+  function acceptComment(id) {
+    $.ajax({
+      type: 'POST',
+      url: opts.acceptCommentURL,
+      data: {id: id},
+      success: function(data, textStatus, request) {
+        $('#cm' + id).fadeOut('fast');
+        $('#cd' + id).removeClass('moderate');
+      },
+      error: function(request, textStatus, error) {
+        showError('Oops, there was a problem accepting the comment.');
+      }
+    });
+  }
+
+  function deleteComment(id) {
+    $.ajax({
+      type: 'POST',
+      url: opts.deleteCommentURL,
+      data: {id: id},
+      success: function(data, textStatus, request) {
+        var div = $('#cd' + id);
+        if (data == 'delete') {
+          // Moderator mode: remove the comment and all children immediately
+          div.slideUp('fast', function() {
+            div.remove();
+          });
+          return;
+        }
+        // User mode: only mark the comment as deleted
+        div
+          .find('span.user-id:first')
+          .text('[deleted]').end()
+          .find('div.comment-text:first')
+          .text('[deleted]').end()
+          .find('#cm' + id + ', #dc' + id + ', #ac' + id + ', #rc' + id +
+                ', #sp' + id + ', #hp' + id + ', #cr' + id + ', #rl' + id)
+          .remove();
+        var comment = div.data('comment');
+        comment.username = '[deleted]';
+        comment.text = '[deleted]';
+        div.data('comment', comment);
+      },
+      error: function(request, textStatus, error) {
+        showError('Oops, there was a problem deleting the comment.');
+      }
+    });
+  }
+
+  function showProposal(id) {
+    $('#sp' + id).hide();
+    $('#hp' + id).show();
+    $('#pr' + id).slideDown('fast');
+  }
+
+  function hideProposal(id) {
+    $('#hp' + id).hide();
+    $('#sp' + id).show();
+    $('#pr' + id).slideUp('fast');
+  }
+
+  function showProposeChange(id) {
+    $('#pc' + id).hide();
+    $('#hc' + id).show();
+    var textarea = $('#pt' + id);
+    textarea.val(textarea.data('source'));
+    $.fn.autogrow.resize(textarea[0]);
+    textarea.slideDown('fast');
+  }
+
+  function hideProposeChange(id) {
+    $('#hc' + id).hide();
+    $('#pc' + id).show();
+    var textarea = $('#pt' + id);
+    textarea.val('').removeAttr('disabled');
+    textarea.slideUp('fast');
+  }
+
+  function toggleCommentMarkupBox(id) {
+    $('#mb' + id).toggle();
+  }
+
+  /** Handle when the user clicks on a sort by link. */
+  function handleReSort(link) {
+    var classes = link.attr('class').split(/\s+/);
+    for (var i=0; i<classes.length; i++) {
+      if (classes[i] != 'sort-option') {
+	by = classes[i].substring(2);
+      }
+    }
+    setComparator();
+    // Save/update the sortBy cookie.
+    var expiration = new Date();
+    expiration.setDate(expiration.getDate() + 365);
+    document.cookie= 'sortBy=' + escape(by) +
+                     ';expires=' + expiration.toUTCString();
+    $('ul.comment-ul').each(function(index, ul) {
+      var comments = getChildren($(ul), true);
+      comments = sortComments(comments);
+      appendComments(comments, $(ul).empty());
+    });
+  }
+
+  /**
+   * Function to process a vote when a user clicks an arrow.
+   */
+  function handleVote(link) {
+    if (!opts.voting) {
+      showError("You'll need to login to vote.");
+      return;
+    }
+
+    var id = link.attr('id');
+    if (!id) {
+      // Didn't click on one of the voting arrows.
+      return;
+    }
+    // If it is an unvote, the new vote value is 0,
+    // Otherwise it's 1 for an upvote, or -1 for a downvote.
+    var value = 0;
+    if (id.charAt(1) != 'u') {
+      value = id.charAt(0) == 'u' ? 1 : -1;
+    }
+    // The data to be sent to the server.
+    var d = {
+      comment_id: id.substring(2),
+      value: value
+    };
+
+    // Swap the vote and unvote links.
+    link.hide();
+    $('#' + id.charAt(0) + (id.charAt(1) == 'u' ? 'v' : 'u') + d.comment_id)
+      .show();
+
+    // The div the comment is displayed in.
+    var div = $('div#cd' + d.comment_id);
+    var data = div.data('comment');
+
+    // If this is not an unvote, and the other vote arrow has
+    // already been pressed, unpress it.
+    if ((d.value !== 0) && (data.vote === d.value * -1)) {
+      $('#' + (d.value == 1 ? 'd' : 'u') + 'u' + d.comment_id).hide();
+      $('#' + (d.value == 1 ? 'd' : 'u') + 'v' + d.comment_id).show();
+    }
+
+    // Update the comments rating in the local data.
+    data.rating += (data.vote === 0) ? d.value : (d.value - data.vote);
+    data.vote = d.value;
+    div.data('comment', data);
+
+    // Change the rating text.
+    div.find('.rating:first')
+      .text(data.rating + ' point' + (data.rating == 1 ? '' : 's'));
+
+    // Send the vote information to the server.
+    $.ajax({
+      type: "POST",
+      url: opts.processVoteURL,
+      data: d,
+      error: function(request, textStatus, error) {
+        showError('Oops, there was a problem casting that vote.');
+      }
+    });
+  }
+
+  /**
+   * Open a reply form used to reply to an existing comment.
+   */
+  function openReply(id) {
+    // Swap out the reply link for the hide link
+    $('#rl' + id).hide();
+    $('#cr' + id).show();
+
+    // Add the reply li to the children ul.
+    var div = $(renderTemplate(replyTemplate, {id: id})).hide();
+    $('#cl' + id)
+      .prepend(div)
+      // Setup the submit handler for the reply form.
+      .find('#rf' + id)
+      .submit(function(event) {
+        event.preventDefault();
+        addComment($('#rf' + id));
+        closeReply(id);
+      })
+      .find('input[type=button]')
+      .click(function() {
+        closeReply(id);
+      });
+    div.slideDown('fast', function() {
+      $('#rf' + id).find('textarea').focus();
+    });
+  }
+
+  /**
+   * Close the reply form opened with openReply.
+   */
+  function closeReply(id) {
+    // Remove the reply div from the DOM.
+    $('#rd' + id).slideUp('fast', function() {
+      $(this).remove();
+    });
+
+    // Swap out the hide link for the reply link
+    $('#cr' + id).hide();
+    $('#rl' + id).show();
+  }
+
+  /**
+   * Recursively sort a tree of comments using the comp comparator.
+   */
+  function sortComments(comments) {
+    comments.sort(comp);
+    $.each(comments, function() {
+      this.children = sortComments(this.children);
+    });
+    return comments;
+  }
+
+  /**
+   * Get the children comments from a ul. If recursive is true,
+   * recursively include childrens' children.
+   */
+  function getChildren(ul, recursive) {
+    var children = [];
+    ul.children().children("[id^='cd']")
+      .each(function() {
+        var comment = $(this).data('comment');
+        if (recursive)
+          comment.children = getChildren($(this).find('#cl' + comment.id), true);
+        children.push(comment);
+      });
+    return children;
+  }
+
+  /** Create a div to display a comment in. */
+  function createCommentDiv(comment) {
+    if (!comment.displayed && !opts.moderator) {
+      return $('<div class="moderate">Thank you!  Your comment will show up '
+               + 'once it is has been approved by a moderator.</div>');
+    }
+    // Prettify the comment rating.
+    comment.pretty_rating = comment.rating + ' point' +
+      (comment.rating == 1 ? '' : 's');
+    // Make a class (for displaying not yet moderated comments differently)
+    comment.css_class = comment.displayed ? '' : ' moderate';
+    // Create a div for this comment.
+    var context = $.extend({}, opts, comment);
+    var div = $(renderTemplate(commentTemplate, context));
+
+    // If the user has voted on this comment, highlight the correct arrow.
+    if (comment.vote) {
+      var direction = (comment.vote == 1) ? 'u' : 'd';
+      div.find('#' + direction + 'v' + comment.id).hide();
+      div.find('#' + direction + 'u' + comment.id).show();
+    }
+
+    if (opts.moderator || comment.text != '[deleted]') {
+      div.find('a.reply').show();
+      if (comment.proposal_diff)
+        div.find('#sp' + comment.id).show();
+      if (opts.moderator && !comment.displayed)
+        div.find('#cm' + comment.id).show();
+      if (opts.moderator || (opts.username == comment.username))
+        div.find('#dc' + comment.id).show();
+    }
+    return div;
+  }
+
+  /**
+   * A simple template renderer. Placeholders such as <%id%> are replaced
+   * by context['id'] with items being escaped. Placeholders such as <#id#>
+   * are not escaped.
+   */
+  function renderTemplate(template, context) {
+    var esc = $(document.createElement('div'));
+
+    function handle(ph, escape) {
+      var cur = context;
+      $.each(ph.split('.'), function() {
+        cur = cur[this];
+      });
+      return escape ? esc.text(cur || "").html() : cur;
+    }
+
+    return template.replace(/<([%#])([\w\.]*)\1>/g, function() {
+      return handle(arguments[2], arguments[1] == '%' ? true : false);
+    });
+  }
+
+  /** Flash an error message briefly. */
+  function showError(message) {
+    $(document.createElement('div')).attr({'class': 'popup-error'})
+      .append($(document.createElement('div'))
+               .attr({'class': 'error-message'}).text(message))
+      .appendTo('body')
+      .fadeIn("slow")
+      .delay(2000)
+      .fadeOut("slow");
+  }
+
+  /** Add a link the user uses to open the comments popup. */
+  $.fn.comment = function() {
+    return this.each(function() {
+      var id = $(this).attr('id').substring(1);
+      var count = COMMENT_METADATA[id];
+      var title = count + ' comment' + (count == 1 ? '' : 's');
+      var image = count > 0 ? opts.commentBrightImage : opts.commentImage;
+      var addcls = count == 0 ? ' nocomment' : '';
+      $(this)
+        .append(
+          $(document.createElement('a')).attr({
+            href: '#',
+            'class': 'sphinx-comment-open' + addcls,
+            id: 'ao' + id
+          })
+            .append($(document.createElement('img')).attr({
+              src: image,
+              alt: 'comment',
+              title: title
+            }))
+            .click(function(event) {
+              event.preventDefault();
+              show($(this).attr('id').substring(2));
+            })
+        )
+        .append(
+          $(document.createElement('a')).attr({
+            href: '#',
+            'class': 'sphinx-comment-close hidden',
+            id: 'ah' + id
+          })
+            .append($(document.createElement('img')).attr({
+              src: opts.closeCommentImage,
+              alt: 'close',
+              title: 'close'
+            }))
+            .click(function(event) {
+              event.preventDefault();
+              hide($(this).attr('id').substring(2));
+            })
+        );
+    });
+  };
+
+  var opts = {
+    processVoteURL: '/_process_vote',
+    addCommentURL: '/_add_comment',
+    getCommentsURL: '/_get_comments',
+    acceptCommentURL: '/_accept_comment',
+    deleteCommentURL: '/_delete_comment',
+    commentImage: '/static/_static/comment.png',
+    closeCommentImage: '/static/_static/comment-close.png',
+    loadingImage: '/static/_static/ajax-loader.gif',
+    commentBrightImage: '/static/_static/comment-bright.png',
+    upArrow: '/static/_static/up.png',
+    downArrow: '/static/_static/down.png',
+    upArrowPressed: '/static/_static/up-pressed.png',
+    downArrowPressed: '/static/_static/down-pressed.png',
+    voting: false,
+    moderator: false
+  };
+
+  if (typeof COMMENT_OPTIONS != "undefined") {
+    opts = jQuery.extend(opts, COMMENT_OPTIONS);
+  }
+
+  var popupTemplate = '\
+    <div class="sphinx-comments" id="sc<%id%>">\
+      <p class="sort-options">\
+        Sort by:\
+        <a href="#" class="sort-option byrating">best rated</a>\
+        <a href="#" class="sort-option byascage">newest</a>\
+        <a href="#" class="sort-option byage">oldest</a>\
+      </p>\
+      <div class="comment-header">Comments</div>\
+      <div class="comment-loading" id="cn<%id%>">\
+        loading comments... <img src="<%loadingImage%>" alt="" /></div>\
+      <ul id="cl<%id%>" class="comment-ul"></ul>\
+      <div id="ca<%id%>">\
+      <p class="add-a-comment">Add a comment\
+        (<a href="#" class="comment-markup" id="ab<%id%>">markup</a>):</p>\
+      <div class="comment-markup-box" id="mb<%id%>">\
+        reStructured text markup: <i>*emph*</i>, <b>**strong**</b>, \
+        <tt>``code``</tt>, \
+        code blocks: <tt>::</tt> and an indented block after blank line</div>\
+      <form method="post" id="cf<%id%>" class="comment-form" action="">\
+        <textarea name="comment" cols="80"></textarea>\
+        <p class="propose-button">\
+          <a href="#" id="pc<%id%>" class="show-propose-change">\
+            Propose a change &#9657;\
+          </a>\
+          <a href="#" id="hc<%id%>" class="hide-propose-change">\
+            Propose a change &#9663;\
+          </a>\
+        </p>\
+        <textarea name="proposal" id="pt<%id%>" cols="80"\
+                  spellcheck="false"></textarea>\
+        <input type="submit" value="Add comment" />\
+        <input type="hidden" name="node" value="<%id%>" />\
+        <input type="hidden" name="parent" value="" />\
+      </form>\
+      </div>\
+    </div>';
+
+  var commentTemplate = '\
+    <div id="cd<%id%>" class="sphinx-comment<%css_class%>">\
+      <div class="vote">\
+        <div class="arrow">\
+          <a href="#" id="uv<%id%>" class="vote" title="vote up">\
+            <img src="<%upArrow%>" />\
+          </a>\
+          <a href="#" id="uu<%id%>" class="un vote" title="vote up">\
+            <img src="<%upArrowPressed%>" />\
+          </a>\
+        </div>\
+        <div class="arrow">\
+          <a href="#" id="dv<%id%>" class="vote" title="vote down">\
+            <img src="<%downArrow%>" id="da<%id%>" />\
+          </a>\
+          <a href="#" id="du<%id%>" class="un vote" title="vote down">\
+            <img src="<%downArrowPressed%>" />\
+          </a>\
+        </div>\
+      </div>\
+      <div class="comment-content">\
+        <p class="tagline comment">\
+          <span class="user-id"><%username%></span>\
+          <span class="rating"><%pretty_rating%></span>\
+          <span class="delta"><%time.delta%></span>\
+        </p>\
+        <div class="comment-text comment"><#text#></div>\
+        <p class="comment-opts comment">\
+          <a href="#" class="reply hidden" id="rl<%id%>">reply &#9657;</a>\
+          <a href="#" class="close-reply" id="cr<%id%>">reply &#9663;</a>\
+          <a href="#" id="sp<%id%>" class="show-proposal">proposal &#9657;</a>\
+          <a href="#" id="hp<%id%>" class="hide-proposal">proposal &#9663;</a>\
+          <a href="#" id="dc<%id%>" class="delete-comment hidden">delete</a>\
+          <span id="cm<%id%>" class="moderation hidden">\
+            <a href="#" id="ac<%id%>" class="accept-comment">accept</a>\
+          </span>\
+        </p>\
+        <pre class="proposal" id="pr<%id%>">\
+<#proposal_diff#>\
+        </pre>\
+          <ul class="comment-children" id="cl<%id%>"></ul>\
+        </div>\
+        <div class="clearleft"></div>\
+      </div>\
+    </div>';
+
+  var replyTemplate = '\
+    <li>\
+      <div class="reply-div" id="rd<%id%>">\
+        <form id="rf<%id%>">\
+          <textarea name="comment" cols="80"></textarea>\
+          <input type="submit" value="Add reply" />\
+          <input type="button" value="Cancel" />\
+          <input type="hidden" name="parent" value="<%id%>" />\
+          <input type="hidden" name="node" value="" />\
+        </form>\
+      </div>\
+    </li>';
+
+  $(document).ready(function() {
+    init();
+  });
+})(jQuery);
+
+$(document).ready(function() {
+  // add comment anchors for all paragraphs that are commentable
+  $('.sphinx-has-comment').comment();
+
+  // highlight search words in search results
+  $("div.context").each(function() {
+    var params = $.getQueryParameters();
+    var terms = (params.q) ? params.q[0].split(/\s+/) : [];
+    var result = $(this);
+    $.each(terms, function() {
+      result.highlightText(this.toLowerCase(), 'highlighted');
+    });
+  });
+
+  // directly open comment window if requested
+  var anchor = document.location.hash;
+  if (anchor.substring(0, 9) == '#comment-') {
+    $('#ao' + anchor.substring(9)).click();
+    document.location.hash = '#s' + anchor.substring(9);
+  }
+});
diff --git a/doc/html/acknowledgement.html b/doc/html/acknowledgement.html
index 58dabe27..3a018889 100644
--- a/doc/html/acknowledgement.html
+++ b/doc/html/acknowledgement.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>Acknowledgements &mdash; musrfit 1.6.4 documentation</title>
+    <title>Acknowledgements &mdash; musrfit 1.6.5 documentation</title>
     
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.6.4',
+        VERSION:     '1.6.5',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -24,7 +24,7 @@
     <script type="text/javascript" src="_static/underscore.js"></script>
     <script type="text/javascript" src="_static/doctools.js"></script>
     <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
-    <link rel="top" title="musrfit 1.6.4 documentation" href="index.html" />
+    <link rel="top" title="musrfit 1.6.5 documentation" href="index.html" />
     <link rel="next" title="Bugtracking" href="bugtracking.html" />
     <link rel="prev" title="MusrRoot - an Extensible Open File Format for μSR" href="musr-root.html" /> 
   </head>
@@ -41,7 +41,7 @@
         <li class="right" >
           <a href="musr-root.html" title="MusrRoot - an Extensible Open File Format for μSR"
              accesskey="P">previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -112,12 +112,12 @@ extremely competent way to deal with his projects as well as to deal with the ch
         <li class="right" >
           <a href="musr-root.html" title="MusrRoot - an Extensible Open File Format for μSR"
              >previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer">
-        &copy; Copyright 2020, Andreas Suter.
-      Last updated on Aug 29, 2020.
+        &copy; Copyright 2021, Andreas Suter.
+      Last updated on Jan 23, 2021.
       Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.
     </div>
   </body>
diff --git a/doc/html/any2many.html b/doc/html/any2many.html
index b2d254b8..9a013073 100644
--- a/doc/html/any2many.html
+++ b/doc/html/any2many.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>any2many - a Universal μSR-file-format converter &mdash; musrfit 1.6.4 documentation</title>
+    <title>any2many - a Universal μSR-file-format converter &mdash; musrfit 1.6.5 documentation</title>
     
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.6.4',
+        VERSION:     '1.6.5',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -24,7 +24,7 @@
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-    <link rel="top" title="musrfit 1.6.4 documentation" href="index.html" />
+    <link rel="top" title="musrfit 1.6.5 documentation" href="index.html" />
     <link rel="next" title="MusrRoot - an Extensible Open File Format for μSR" href="musr-root.html" />
     <link rel="prev" title="msr2data - A Program for Automatically Processing Multiple musrfit msr Files" href="msr2data.html" /> 
   </head>
@@ -41,7 +41,7 @@
         <li class="right" >
           <a href="msr2data.html" title="msr2data - A Program for Automatically Processing Multiple musrfit msr Files"
              accesskey="P">previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -102,12 +102,12 @@ For a detailed description see <a class="reference internal" href="user-manual.h
         <li class="right" >
           <a href="msr2data.html" title="msr2data - A Program for Automatically Processing Multiple musrfit msr Files"
              >previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer">
-        &copy; Copyright 2020, Andreas Suter.
-      Last updated on Aug 29, 2020.
+        &copy; Copyright 2021, Andreas Suter.
+      Last updated on Jan 23, 2021.
       Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.
     </div>
   </body>
diff --git a/doc/html/bugtracking.html b/doc/html/bugtracking.html
index 4d2e2b2c..7dde4953 100644
--- a/doc/html/bugtracking.html
+++ b/doc/html/bugtracking.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>Bugtracking &mdash; musrfit 1.6.4 documentation</title>
+    <title>Bugtracking &mdash; musrfit 1.6.5 documentation</title>
     
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.6.4',
+        VERSION:     '1.6.5',
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         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -24,7 +24,7 @@
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     <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
-    <link rel="top" title="musrfit 1.6.4 documentation" href="index.html" />
+    <link rel="top" title="musrfit 1.6.5 documentation" href="index.html" />
     <link rel="prev" title="Acknowledgements" href="acknowledgement.html" /> 
   </head>
   <body>
@@ -37,7 +37,7 @@
         <li class="right" >
           <a href="acknowledgement.html" title="Acknowledgements"
              accesskey="P">previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -93,12 +93,12 @@ or send an e-mail to A. Suter at PSI.</p>
         <li class="right" >
           <a href="acknowledgement.html" title="Acknowledgements"
              >previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer">
-        &copy; Copyright 2020, Andreas Suter.
-      Last updated on Aug 29, 2020.
+        &copy; Copyright 2021, Andreas Suter.
+      Last updated on Jan 23, 2021.
       Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.
     </div>
   </body>
diff --git a/doc/html/cite.html b/doc/html/cite.html
index d915c5b1..04edecac 100644
--- a/doc/html/cite.html
+++ b/doc/html/cite.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>How to Cite musrfit? &mdash; musrfit 1.6.4 documentation</title>
+    <title>How to Cite musrfit? &mdash; musrfit 1.6.5 documentation</title>
     
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
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-        VERSION:     '1.6.4',
+        VERSION:     '1.6.5',
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         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -24,7 +24,7 @@
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     <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
-    <link rel="top" title="musrfit 1.6.4 documentation" href="index.html" />
+    <link rel="top" title="musrfit 1.6.5 documentation" href="index.html" />
     <link rel="next" title="Tutorial for musrfit" href="tutorial.html" />
     <link rel="prev" title="Welcome to the musrfit documentation!" href="index.html" /> 
   </head>
@@ -41,7 +41,7 @@
         <li class="right" >
           <a href="index.html" title="Welcome to the musrfit documentation!"
              accesskey="P">previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -114,12 +114,12 @@
         <li class="right" >
           <a href="index.html" title="Welcome to the musrfit documentation!"
              >previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer">
-        &copy; Copyright 2020, Andreas Suter.
-      Last updated on Aug 29, 2020.
+        &copy; Copyright 2021, Andreas Suter.
+      Last updated on Jan 23, 2021.
       Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.
     </div>
   </body>
diff --git a/doc/html/genindex.html b/doc/html/genindex.html
index 717864ea..db064c63 100644
--- a/doc/html/genindex.html
+++ b/doc/html/genindex.html
@@ -7,7 +7,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>Index &mdash; musrfit 1.6.4 documentation</title>
+    <title>Index &mdash; musrfit 1.6.5 documentation</title>
     
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -15,7 +15,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
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-        VERSION:     '1.6.4',
+        VERSION:     '1.6.5',
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         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -25,7 +25,7 @@
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     <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
-    <link rel="top" title="musrfit 1.6.4 documentation" href="index.html" /> 
+    <link rel="top" title="musrfit 1.6.5 documentation" href="index.html" /> 
   </head>
   <body>
     <div class="related">
@@ -34,7 +34,7 @@
         <li class="right" style="margin-right: 10px">
           <a href="#" title="General Index"
              accesskey="I">index</a></li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -990,12 +990,12 @@
         <li class="right" style="margin-right: 10px">
           <a href="#" title="General Index"
              >index</a></li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer">
-        &copy; Copyright 2020, Andreas Suter.
-      Last updated on Aug 29, 2020.
+        &copy; Copyright 2021, Andreas Suter.
+      Last updated on Jan 23, 2021.
       Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.
     </div>
   </body>
diff --git a/doc/html/index.html b/doc/html/index.html
index 1adfa8cb..8477a1b1 100644
--- a/doc/html/index.html
+++ b/doc/html/index.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>Welcome to the musrfit documentation! &mdash; musrfit 1.6.4 documentation</title>
+    <title>Welcome to the musrfit documentation! &mdash; musrfit 1.6.5 documentation</title>
     
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.6.4',
+        VERSION:     '1.6.5',
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         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -24,7 +24,7 @@
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     <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
-    <link rel="top" title="musrfit 1.6.4 documentation" href="#" />
+    <link rel="top" title="musrfit 1.6.5 documentation" href="#" />
     <link rel="next" title="How to Cite musrfit?" href="cite.html" /> 
   </head>
   <body>
@@ -37,7 +37,7 @@
         <li class="right" >
           <a href="cite.html" title="How to Cite musrfit?"
              accesskey="N">next</a> |</li>
-        <li><a href="#">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="#">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -180,12 +180,12 @@
         <li class="right" >
           <a href="cite.html" title="How to Cite musrfit?"
              >next</a> |</li>
-        <li><a href="#">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="#">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer">
-        &copy; Copyright 2020, Andreas Suter.
-      Last updated on Aug 29, 2020.
+        &copy; Copyright 2021, Andreas Suter.
+      Last updated on Jan 23, 2021.
       Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.
     </div>
   </body>
diff --git a/doc/html/msr2data.html b/doc/html/msr2data.html
index 758554ad..5b2d933f 100644
--- a/doc/html/msr2data.html
+++ b/doc/html/msr2data.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>msr2data - A Program for Automatically Processing Multiple musrfit msr Files &mdash; musrfit 1.6.4 documentation</title>
+    <title>msr2data - A Program for Automatically Processing Multiple musrfit msr Files &mdash; musrfit 1.6.5 documentation</title>
     
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
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@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.6.4',
+        VERSION:     '1.6.5',
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         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -24,7 +24,7 @@
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     <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
-    <link rel="top" title="musrfit 1.6.4 documentation" href="index.html" />
+    <link rel="top" title="musrfit 1.6.5 documentation" href="index.html" />
     <link rel="next" title="any2many - a Universal μSR-file-format converter" href="any2many.html" />
     <link rel="prev" title="mupp - μSR Parameter Plotter" href="mupp.html" /> 
   </head>
@@ -41,7 +41,7 @@
         <li class="right" >
           <a href="mupp.html" title="mupp - μSR Parameter Plotter"
              accesskey="P">previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -434,12 +434,12 @@ fit serves as template for the second and so on. The template field stays empty
         <li class="right" >
           <a href="mupp.html" title="mupp - μSR Parameter Plotter"
              >previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer">
-        &copy; Copyright 2020, Andreas Suter.
-      Last updated on Aug 29, 2020.
+        &copy; Copyright 2021, Andreas Suter.
+      Last updated on Jan 23, 2021.
       Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.
     </div>
   </body>
diff --git a/doc/html/mupp.html b/doc/html/mupp.html
index a127f4e4..589166bf 100644
--- a/doc/html/mupp.html
+++ b/doc/html/mupp.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>mupp - μSR Parameter Plotter &mdash; musrfit 1.6.4 documentation</title>
+    <title>mupp - μSR Parameter Plotter &mdash; musrfit 1.6.5 documentation</title>
     
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.6.4',
+        VERSION:     '1.6.5',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -24,7 +24,7 @@
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     <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
-    <link rel="top" title="musrfit 1.6.4 documentation" href="index.html" />
+    <link rel="top" title="musrfit 1.6.5 documentation" href="index.html" />
     <link rel="next" title="msr2data - A Program for Automatically Processing Multiple musrfit msr Files" href="msr2data.html" />
     <link rel="prev" title="musredit: the GUI Based Interface to musrfit" href="musredit.html" /> 
   </head>
@@ -41,7 +41,7 @@
         <li class="right" >
           <a href="musredit.html" title="musredit: the GUI Based Interface to musrfit"
              accesskey="P">previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -324,12 +324,12 @@ SCRIPT COMMANDS:
         <li class="right" >
           <a href="musredit.html" title="musredit: the GUI Based Interface to musrfit"
              >previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer">
-        &copy; Copyright 2020, Andreas Suter.
-      Last updated on Aug 29, 2020.
+        &copy; Copyright 2021, Andreas Suter.
+      Last updated on Jan 23, 2021.
       Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.
     </div>
   </body>
diff --git a/doc/html/musr-root.html b/doc/html/musr-root.html
index e941a553..c37ff798 100644
--- a/doc/html/musr-root.html
+++ b/doc/html/musr-root.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>MusrRoot - an Extensible Open File Format for μSR &mdash; musrfit 1.6.4 documentation</title>
+    <title>MusrRoot - an Extensible Open File Format for μSR &mdash; musrfit 1.6.5 documentation</title>
     
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.6.4',
+        VERSION:     '1.6.5',
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         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -24,7 +24,7 @@
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     <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
-    <link rel="top" title="musrfit 1.6.4 documentation" href="index.html" />
+    <link rel="top" title="musrfit 1.6.5 documentation" href="index.html" />
     <link rel="next" title="Acknowledgements" href="acknowledgement.html" />
     <link rel="prev" title="any2many - a Universal μSR-file-format converter" href="any2many.html" /> 
   </head>
@@ -41,7 +41,7 @@
         <li class="right" >
           <a href="any2many.html" title="any2many - a Universal μSR-file-format converter"
              accesskey="P">previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -923,12 +923,12 @@ the entry has been added. The last token, <tt class="docutils literal"><span cla
         <li class="right" >
           <a href="any2many.html" title="any2many - a Universal μSR-file-format converter"
              >previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer">
-        &copy; Copyright 2020, Andreas Suter.
-      Last updated on Aug 29, 2020.
+        &copy; Copyright 2021, Andreas Suter.
+      Last updated on Jan 23, 2021.
       Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.
     </div>
   </body>
diff --git a/doc/html/musredit.html b/doc/html/musredit.html
index c8d2bc46..45569fc0 100644
--- a/doc/html/musredit.html
+++ b/doc/html/musredit.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>musredit: the GUI Based Interface to musrfit &mdash; musrfit 1.6.4 documentation</title>
+    <title>musredit: the GUI Based Interface to musrfit &mdash; musrfit 1.6.5 documentation</title>
     
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.6.4',
+        VERSION:     '1.6.5',
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         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -24,7 +24,7 @@
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     <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
-    <link rel="top" title="musrfit 1.6.4 documentation" href="index.html" />
+    <link rel="top" title="musrfit 1.6.5 documentation" href="index.html" />
     <link rel="next" title="mupp - μSR Parameter Plotter" href="mupp.html" />
     <link rel="prev" title="Setting up musrfit / DKS: High Speed Fitting with GPU’s" href="setup-dks.html" /> 
   </head>
@@ -41,7 +41,7 @@
         <li class="right" >
           <a href="setup-dks.html" title="Setting up musrfit / DKS: High Speed Fitting with GPU’s"
              accesskey="P">previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -55,8 +55,8 @@
 <div class="section" id="introduction">
 <h2>Introduction<a class="headerlink" href="#introduction" title="Permalink to this headline">¶</a></h2>
 <p><tt class="docutils literal"><span class="pre">musredit</span></tt> is an editor which also provide a graphical user interface to the programs contained in the <tt class="docutils literal"><span class="pre">musrfit</span></tt> suite and are intended
-to help the user handle <tt class="docutils literal"><span class="pre">musrfit</span></tt> msr files. It is implemented in <tt class="docutils literal"><span class="pre">C++</span></tt> and use the <a class="reference external" href="https://qt.io">Qt</a> framework. <tt class="docutils literal"><span class="pre">musredit</span></tt> is based on Qt 4.6 or Qt 5.6 (or above).
-The Qt 5.6 version of <tt class="docutils literal"><span class="pre">musredit</span></tt> will be actively developed, whereas the Qt 4.x version will only get bug fixing and eventually will be dropped.
+to help the user handle <tt class="docutils literal"><span class="pre">musrfit</span></tt> msr files. It is implemented in <tt class="docutils literal"><span class="pre">C++</span></tt> and use the <a class="reference external" href="https://qt.io">Qt</a> framework. <tt class="docutils literal"><span class="pre">musredit</span></tt> is based on Qt 4.6, Qt 5.6 (or above), or Qt6.x.
+The Qt 5.6 and Qt 6.x version of <tt class="docutils literal"><span class="pre">musredit</span></tt> will be actively developed, whereas the Qt 4.x version will only get bug fixing and eventually will be dropped.
 On this documentation page only the features related to <tt class="docutils literal"><span class="pre">musrfit</span></tt> are described — the basic editor functions which should be self-explanatory are <em>not</em>.
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@@ -550,12 +550,12 @@ the corresponding fit parameter value, except the phases where the step will be
         <li class="right" >
           <a href="setup-dks.html" title="Setting up musrfit / DKS: High Speed Fitting with GPU’s"
              >previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer">
-        &copy; Copyright 2020, Andreas Suter.
-      Last updated on Aug 29, 2020.
+        &copy; Copyright 2021, Andreas Suter.
+      Last updated on Jan 23, 2021.
       Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.
     </div>
   </body>
diff --git a/doc/html/search.html b/doc/html/search.html
index af10413e..5e53eb9e 100644
--- a/doc/html/search.html
+++ b/doc/html/search.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>Search &mdash; musrfit 1.6.4 documentation</title>
+    <title>Search &mdash; musrfit 1.6.5 documentation</title>
     
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
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@@ -14,7 +14,7 @@
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-    <link rel="top" title="musrfit 1.6.4 documentation" href="index.html" />
+    <link rel="top" title="musrfit 1.6.5 documentation" href="index.html" />
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@@ -41,7 +41,7 @@
         <li class="right" style="margin-right: 10px">
           <a href="genindex.html" title="General Index"
              accesskey="I">index</a></li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -89,12 +89,12 @@
         <li class="right" style="margin-right: 10px">
           <a href="genindex.html" title="General Index"
              >index</a></li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer">
-        &copy; Copyright 2020, Andreas Suter.
-      Last updated on Aug 29, 2020.
+        &copy; Copyright 2021, Andreas Suter.
+      Last updated on Jan 23, 2021.
       Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.
     </div>
   </body>
diff --git a/doc/html/searchindex.js b/doc/html/searchindex.js
index ca594453..558eb4fc 100644
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diff --git a/doc/html/setup-dks.html b/doc/html/setup-dks.html
index 376a555a..2cc910f8 100644
--- a/doc/html/setup-dks.html
+++ b/doc/html/setup-dks.html
@@ -5,7 +5,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>Setting up musrfit / DKS: High Speed Fitting with GPU’s &mdash; musrfit 1.6.4 documentation</title>
+    <title>Setting up musrfit / DKS: High Speed Fitting with GPU’s &mdash; musrfit 1.6.5 documentation</title>
     
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -13,7 +13,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.6.4',
+        VERSION:     '1.6.5',
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         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -23,7 +23,7 @@
     <script type="text/javascript" src="_static/underscore.js"></script>
     <script type="text/javascript" src="_static/doctools.js"></script>
     <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
-    <link rel="top" title="musrfit 1.6.4 documentation" href="index.html" />
+    <link rel="top" title="musrfit 1.6.5 documentation" href="index.html" />
     <link rel="next" title="musredit: the GUI Based Interface to musrfit" href="musredit.html" />
     <link rel="prev" title="Setting up musrfit on Different Platforms" href="setup-standard.html" /> 
   </head>
@@ -40,7 +40,7 @@
         <li class="right" >
           <a href="setup-standard.html" title="Setting up musrfit on Different Platforms"
              accesskey="P">previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -320,12 +320,12 @@ The only thing you need <tt class="docutils literal"><span class="pre">DKS</span
         <li class="right" >
           <a href="setup-standard.html" title="Setting up musrfit on Different Platforms"
              >previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer">
-        &copy; Copyright 2020, Andreas Suter.
-      Last updated on Aug 29, 2020.
+        &copy; Copyright 2021, Andreas Suter.
+      Last updated on Jan 23, 2021.
       Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.
     </div>
   </body>
diff --git a/doc/html/setup-standard.html b/doc/html/setup-standard.html
index 9c851799..b1965e10 100644
--- a/doc/html/setup-standard.html
+++ b/doc/html/setup-standard.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>Setting up musrfit on Different Platforms &mdash; musrfit 1.6.4 documentation</title>
+    <title>Setting up musrfit on Different Platforms &mdash; musrfit 1.6.5 documentation</title>
     
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.6.4',
+        VERSION:     '1.6.5',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -24,7 +24,7 @@
     <script type="text/javascript" src="_static/underscore.js"></script>
     <script type="text/javascript" src="_static/doctools.js"></script>
     <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
-    <link rel="top" title="musrfit 1.6.4 documentation" href="index.html" />
+    <link rel="top" title="musrfit 1.6.5 documentation" href="index.html" />
     <link rel="next" title="Setting up musrfit / DKS: High Speed Fitting with GPU’s" href="setup-dks.html" />
     <link rel="prev" title="Documentation of user libs (user functions)" href="user-libs.html" /> 
   </head>
@@ -41,7 +41,7 @@
         <li class="right" >
           <a href="user-libs.html" title="Documentation of user libs (user functions)"
              accesskey="P">previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -106,7 +106,7 @@ Currently the <tt class="docutils literal"><span class="pre">MXML</span></tt> su
 <p>If <em>optionally</em> the editor and graphical user interface <tt class="docutils literal"><span class="pre">musrgui</span></tt> / <tt class="docutils literal"><span class="pre">musredit</span></tt> is going to be installed there is one further requirement:</p>
 <dl class="docutils" id="index-11">
 <dt><strong>Qt</strong></dt>
-<dd>A cross-platform application and user interface framework. <em>Required version ≥ 4.6</em> (musredit) (see <a class="reference external" href="http://qt.io/">Qt</a>).</dd>
+<dd>A cross-platform application and user interface framework. <em>Required version ≥ 4.6</em> (musredit) (see <a class="reference external" href="http://qt.io/">Qt</a>). Currently the <strong>Qt5</strong> is the main development part. Qt6 just kicked in, but is not widely available yet.</dd>
 </dl>
 <p>Each of the following sections focusing on the installation of <tt class="docutils literal"><span class="pre">musrfit</span></tt> on the different operating systems will also give a brief introduction on the installation of the requirements before the actual musrfit installation is described.</p>
 </div>
@@ -150,7 +150,7 @@ from the shell will do the trick (never type the &#8216;$&#8217; it is the shell
 <p>For <strong>Qt5</strong>:</p>
 <blockquote>
 <div><div class="highlight-bash"><div class="highlight"><pre><span></span>$ yum install epel-release
-$ yum install git cmake boost-devel gsl-devel fftw-devel libxml2-devel qt5-qtbase-devel qt5-qtsvg-devel qt5-qtwebkit-devel
+$ yum install git cmake boost-devel gsl-devel fftw-devel libxml2-devel qt5-qtbase-devel qt5-qtsvg-devel
 </pre></div>
 </div>
 </div></blockquote>
@@ -165,7 +165,7 @@ the installation would look like:</p>
 </div></blockquote>
 <p>For <strong>Qt5</strong>:</p>
 <blockquote>
-<div><div class="highlight-bash"><div class="highlight"><pre><span></span>$ apt-get install git cmake libboost-dev libgsl-dev libfftw3-dev libxml2-dev qt5-default qtbase5-dev libqt5svg5-dev libqt5webkit5-dev
+<div><div class="highlight-bash"><div class="highlight"><pre><span></span>$ apt-get install git cmake libboost-dev libgsl-dev libfftw3-dev libxml2-dev qt5-default qtbase5-dev libqt5svg5-dev
 </pre></div>
 </div>
 </div></blockquote>
@@ -339,7 +339,7 @@ switch is not provided is <tt class="docutils literal"><span class="pre">BMWlibs
 <dd>Will try to get <tt class="docutils literal"><span class="pre">musredit</span></tt>, <tt class="docutils literal"><span class="pre">musrWiz</span></tt>, <tt class="docutils literal"><span class="pre">musrStep</span></tt>, and <tt class="docutils literal"><span class="pre">mupp</span></tt> installed, if <tt class="docutils literal"><span class="pre">Qt</span></tt> is found.
 By default this is enabled. Again &lt;value&gt;=0 means disabled, &lt;value&gt;=1 enabled.</dd>
 <dt><strong>-Dqt_version=&lt;value&gt;</strong></dt>
-<dd>Allows to specify which <tt class="docutils literal"><span class="pre">Qt</span></tt> version shall be tried. &lt;value&gt; can take the values: <tt class="docutils literal"><span class="pre">AUTO,</span> <span class="pre">3,</span> <span class="pre">4,</span> <span class="pre">5</span></tt>.
+<dd>Allows to specify which <tt class="docutils literal"><span class="pre">Qt</span></tt> version shall be tried. &lt;value&gt; can take the values: <tt class="docutils literal"><span class="pre">AUTO,</span> <span class="pre">3,</span> <span class="pre">4,</span> <span class="pre">5,</span> <span class="pre">6</span></tt>.
 If the value is set to <tt class="docutils literal"><span class="pre">AUTO</span></tt>, this highest installed version is chosen, otherwise the specified version is used.</dd>
 <dt><strong>-Dtry_OpenMP=&lt;value&gt;</strong></dt>
 <dd>Will check if <tt class="docutils literal"><span class="pre">OpenMP</span></tt> support is possible, and if yes use it. The default is enabled</dd>
@@ -380,23 +380,10 @@ detailed information on this XML file refer to the <a class="reference internal"
 <div class="section" id="musredit">
 <span id="index-20"></span><h3>musredit<a class="headerlink" href="#musredit" title="Permalink to this headline">¶</a></h3>
 <p>In the latest version of <tt class="docutils literal"><span class="pre">musrfit</span></tt> the configure script tries to determine automatically the highest available <tt class="docutils literal"><span class="pre">Qt</span></tt> version.
-In case this is found, the editor <tt class="docutils literal"><span class="pre">musredit</span></tt> is built already together with <tt class="docutils literal"><span class="pre">musrfit</span></tt>.
-To install this editor separately, <em>i.e.</em> by &#8220;hand&#8221; do</p>
-<div class="highlight-bash"><div class="highlight"><pre><span></span>$ <span class="nb">cd</span> <span class="nv">$HOME</span>/Apps/musrfit/src/musredit_qt5
-$ <span class="c1"># for some distributions you will need qmake-qt5 for the next command</span>
-$ qmake musredit.pro
-</pre></div>
+In case this is found, the editor <tt class="docutils literal"><span class="pre">musredit</span></tt> is built already together with <tt class="docutils literal"><span class="pre">musrfit</span></tt>.</p>
 </div>
-<p>If everything went fine, <tt class="docutils literal"><span class="pre">musredit</span></tt> can be compiled and installed:</p>
-<div class="highlight-bash"><div class="highlight"><pre><span></span>$ make
-$ make install
-</pre></div>
-</div>
-<p>In case one does not like the executable <tt class="docutils literal"><span class="pre">musredit</span></tt> to be copied to the default installation directory <tt class="docutils literal"><span class="pre">$ROOTSYS/bin</span></tt>
-the last <em>make install</em> can be skipped and the executable can be copied somewhere else instead.</p>
-</div>
-<div class="section" id="musrgui-obsolate">
-<h3>musrgui (obsolate)<a class="headerlink" href="#musrgui-obsolate" title="Permalink to this headline">¶</a></h3>
+<div class="section" id="musrgui-depreciated">
+<h3>musrgui (depreciated)<a class="headerlink" href="#musrgui-depreciated" title="Permalink to this headline">¶</a></h3>
 <p>If <tt class="docutils literal"><span class="pre">Qt4.6</span></tt> or higher is not available but <tt class="docutils literal"><span class="pre">Qt3</span></tt> is set up <tt class="docutils literal"><span class="pre">musrgui</span></tt> can be installed. For this please
 follow the instructions for the <tt class="docutils literal"><span class="pre">musredit</span></tt> installation where simply every <tt class="docutils literal"><span class="pre">musredit</span></tt> occurrence has to
 be replaced by <tt class="docutils literal"><span class="pre">musrgui</span></tt>. If there are problems during the <tt class="docutils literal"><span class="pre">qmake</span></tt> step, <em>e.g.</em>
@@ -603,7 +590,7 @@ The default setting, <em>i.e.</em> the switch is not provided is <tt class="docu
 <dd>Will try to get <tt class="docutils literal"><span class="pre">musredit</span></tt>, <tt class="docutils literal"><span class="pre">musrWiz</span></tt>, <tt class="docutils literal"><span class="pre">musrStep</span></tt>, and <tt class="docutils literal"><span class="pre">mupp</span></tt> installed, if <tt class="docutils literal"><span class="pre">Qt</span></tt> is found.
 By default this is <em>enabled</em>. Again &lt;value&gt;=0 means disabled, &lt;value&gt;=1 enabled.</dd>
 <dt><strong>-Dqt_version=&lt;value&gt;</strong></dt>
-<dd>Allows to specify which <tt class="docutils literal"><span class="pre">Qt</span></tt> version shall be tried. &lt;value&gt; can take the values: <tt class="docutils literal"><span class="pre">AUTO,</span> <span class="pre">3,</span> <span class="pre">4,</span> <span class="pre">5</span></tt>.
+<dd>Allows to specify which <tt class="docutils literal"><span class="pre">Qt</span></tt> version shall be tried. &lt;value&gt; can take the values: <tt class="docutils literal"><span class="pre">AUTO,</span> <span class="pre">3,</span> <span class="pre">4,</span> <span class="pre">5,</span> <span class="pre">6</span></tt>.
 If the value is set to <tt class="docutils literal"><span class="pre">AUTO</span></tt>, this highest installed version is chosen, otherwise the specified version is used.</dd>
 <dt><strong>-Dtry_OpenMP=&lt;value&gt;</strong></dt>
 <dd>Will check if <tt class="docutils literal"><span class="pre">OpenMP</span></tt> support is possible, and if yes use it. The default is <em>enabled</em>.</dd>
@@ -652,7 +639,7 @@ musredit <span class="p">&amp;</span>
 </div>
 </div>
 <div class="section" id="id12">
-<h3>musrgui (obsolate)<a class="headerlink" href="#id12" title="Permalink to this headline">¶</a></h3>
+<h3>musrgui (depreciated)<a class="headerlink" href="#id12" title="Permalink to this headline">¶</a></h3>
 <p>If <tt class="docutils literal"><span class="pre">Qt4.5</span></tt> or higher is not available but <tt class="docutils literal"><span class="pre">Qt3</span></tt> is set up <tt class="docutils literal"><span class="pre">musrgui</span></tt> can be installed. For this
 please follow the instructions for the <tt class="docutils literal"><span class="pre">musredit</span></tt> installation where simply every <tt class="docutils literal"><span class="pre">musredit</span></tt> occurrence
 has to be replaced by <tt class="docutils literal"><span class="pre">musrgui</span></tt>, and <tt class="docutils literal"><span class="pre">qt4</span></tt> is replaced by <tt class="docutils literal"><span class="pre">qt3</span></tt>.</p>
@@ -686,6 +673,11 @@ and <tt class="docutils literal"><span class="pre">C:\cygwin\bin\bash.exe</span>
 <h2>Mac OS X / macOS<a class="headerlink" href="#mac-os-x-macos" title="Permalink to this headline">¶</a></h2>
 <div class="admonition note">
 <p class="first admonition-title">Note</p>
+<p class="last">macOS 11 alias <strong>Big Sur</strong>: <tt class="docutils literal"><span class="pre">musrfit</span></tt> is ready for <strong>Big Sur</strong> on Intel based macs. The <tt class="docutils literal"><span class="pre">DKS</span></tt> version of
+<tt class="docutils literal"><span class="pre">musrfit</span></tt> for macOS <strong>Big Sur</strong> is ready as well.</p>
+</div>
+<div class="admonition note">
+<p class="first admonition-title">Note</p>
 <p class="last">macOS Catalina is slightly different in some aspects, so if it happens that you have it installed, please
 first check <a class="reference internal" href="#note-on-catalina"><em>Notes on macOS Catalina</em></a> before you proceed.</p>
 </div>
@@ -753,7 +745,7 @@ add a new line pointing to your local copy, <em>e.g.</em></p>
 </ol>
 <p>Then the MacPorts system should be set up and can be used to install additional software.</p>
 <p>The installation of the software mentioned above is then done in the terminal:</p>
-<div class="highlight-bash"><div class="highlight"><pre><span></span>$ sudo port -v install pkgconfig autoconf automake libtool cmake fftw-3 fftw-3-single gsl boost libxml2 qt5 qt5-qtsvg qt5-qtwebengine
+<div class="highlight-bash"><div class="highlight"><pre><span></span>$ sudo port -v install pkgconfig autoconf automake libtool cmake fftw-3 fftw-3-single gsl boost libxml2 qt5 qt5-qtsvg
 </pre></div>
 </div>
 <p>With <tt class="docutils literal"><span class="pre">Qt5</span></tt>, <tt class="docutils literal"><span class="pre">musredit</span></tt> will be installed. If it happens that you used <tt class="docutils literal"><span class="pre">musrgui</span></tt> in the past,
@@ -927,8 +919,7 @@ is necessary to compile a few packages from source since no binary packages are
 automatically by the FinkCommander after you have chosen the software packages for installation:</p>
 <div class="highlight-python"><div class="highlight"><pre><span></span>autoconf automake cmake boost1.63-nopython boost1.63.nopython-shlibs fftw3 fftw3-shlibs gsl gsl-shlibs
 libtool2 libtool2-shlibs libxml2 libxml2-bin libxml2-shlibs pkgconfig qt5-mac-qtbase qt5-mac-qtbase-dev-tools
-qt5-mac-qtsvg qt5-mac-qtsvg-shlibs qt5-mac-qtwebengine qt5-mac-qtwebengine-shlibs qt5-mac-qtwebenginecore-shlibs
-qt5-mac-qtwebenginewidgets-shlibs
+qt5-mac-qtsvg qt5-mac-qtsvg-shlibs
 </pre></div>
 </div>
 <p>Under OS X 10.6 Snow Leopard it will <em>not</em> be possible to install <tt class="docutils literal"><span class="pre">qt3mac</span></tt> since the system is by default a 64-bit
@@ -1112,7 +1103,7 @@ switch is not provided is <tt class="docutils literal"><span class="pre">BMWlibs
 <dd>Will try to get <tt class="docutils literal"><span class="pre">musredit</span></tt>, <tt class="docutils literal"><span class="pre">musrWiz</span></tt>, <tt class="docutils literal"><span class="pre">musrStep</span></tt>, and <tt class="docutils literal"><span class="pre">mupp</span></tt> installed, if <tt class="docutils literal"><span class="pre">Qt</span></tt> is found.
 By default this is enabled. Again &lt;value&gt;=0 means disabled, &lt;value&gt;=1 enabled.</dd>
 <dt><strong>-Dqt_version=&lt;value&gt;</strong></dt>
-<dd>Allows to specify which <tt class="docutils literal"><span class="pre">Qt</span></tt> version shall be tried. &lt;value&gt; can take the values: <tt class="docutils literal"><span class="pre">AUTO,</span> <span class="pre">3,</span> <span class="pre">4,</span> <span class="pre">5</span></tt>.
+<dd>Allows to specify which <tt class="docutils literal"><span class="pre">Qt</span></tt> version shall be tried. &lt;value&gt; can take the values: <tt class="docutils literal"><span class="pre">AUTO,</span> <span class="pre">3,</span> <span class="pre">4,</span> <span class="pre">5,</span> <span class="pre">6</span></tt>.
 If the value is set to <tt class="docutils literal"><span class="pre">AUTO</span></tt>, this highest installed version is chosen, otherwise the specified version is used.</dd>
 <dt><strong>-Dtry_OpenMP=&lt;value&gt;</strong></dt>
 <dd>Will check if <tt class="docutils literal"><span class="pre">OpenMP</span></tt> support is possible, and if yes use it. The default is enabled</dd>
@@ -1223,7 +1214,7 @@ $ musrview test-histo-ROOT-NPP.msr
 </ul>
 </li>
 <li><a class="reference internal" href="#musredit">musredit</a></li>
-<li><a class="reference internal" href="#musrgui-obsolate">musrgui (obsolate)</a></li>
+<li><a class="reference internal" href="#musrgui-depreciated">musrgui (depreciated)</a></li>
 <li><a class="reference internal" href="#check-the-installation">Check the installation</a></li>
 </ul>
 </li>
@@ -1240,7 +1231,7 @@ $ musrview test-histo-ROOT-NPP.msr
 </ul>
 </li>
 <li><a class="reference internal" href="#index-26">musredit</a></li>
-<li><a class="reference internal" href="#id12">musrgui (obsolate)</a></li>
+<li><a class="reference internal" href="#id12">musrgui (depreciated)</a></li>
 <li><a class="reference internal" href="#id13">Check the installation</a></li>
 <li><a class="reference internal" href="#potential-problems">Potential Problems</a></li>
 </ul>
@@ -1311,12 +1302,12 @@ $ musrview test-histo-ROOT-NPP.msr
         <li class="right" >
           <a href="user-libs.html" title="Documentation of user libs (user functions)"
              >previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer">
-        &copy; Copyright 2020, Andreas Suter.
-      Last updated on Aug 29, 2020.
+        &copy; Copyright 2021, Andreas Suter.
+      Last updated on Jan 23, 2021.
       Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.
     </div>
   </body>
diff --git a/doc/html/tutorial.html b/doc/html/tutorial.html
index d363ae5f..9d4b3a5e 100644
--- a/doc/html/tutorial.html
+++ b/doc/html/tutorial.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>Tutorial for musrfit &mdash; musrfit 1.6.4 documentation</title>
+    <title>Tutorial for musrfit &mdash; musrfit 1.6.5 documentation</title>
     
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.6.4',
+        VERSION:     '1.6.5',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -24,7 +24,7 @@
     <script type="text/javascript" src="_static/underscore.js"></script>
     <script type="text/javascript" src="_static/doctools.js"></script>
     <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
-    <link rel="top" title="musrfit 1.6.4 documentation" href="index.html" />
+    <link rel="top" title="musrfit 1.6.5 documentation" href="index.html" />
     <link rel="next" title="User manual" href="user-manual.html" />
     <link rel="prev" title="How to Cite musrfit?" href="cite.html" /> 
   </head>
@@ -41,7 +41,7 @@
         <li class="right" >
           <a href="cite.html" title="How to Cite musrfit?"
              accesskey="P">previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -443,12 +443,12 @@ For a complete description please refer to the manuals of <a class="reference in
         <li class="right" >
           <a href="cite.html" title="How to Cite musrfit?"
              >previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer">
-        &copy; Copyright 2020, Andreas Suter.
-      Last updated on Aug 29, 2020.
+        &copy; Copyright 2021, Andreas Suter.
+      Last updated on Jan 23, 2021.
       Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.
     </div>
   </body>
diff --git a/doc/html/user-libs.html b/doc/html/user-libs.html
index cc450ef5..53e63c94 100644
--- a/doc/html/user-libs.html
+++ b/doc/html/user-libs.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>Documentation of user libs (user functions) &mdash; musrfit 1.6.4 documentation</title>
+    <title>Documentation of user libs (user functions) &mdash; musrfit 1.6.5 documentation</title>
     
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.6.4',
+        VERSION:     '1.6.5',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -24,7 +24,7 @@
     <script type="text/javascript" src="_static/underscore.js"></script>
     <script type="text/javascript" src="_static/doctools.js"></script>
     <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
-    <link rel="top" title="musrfit 1.6.4 documentation" href="index.html" />
+    <link rel="top" title="musrfit 1.6.5 documentation" href="index.html" />
     <link rel="next" title="Setting up musrfit on Different Platforms" href="setup-standard.html" />
     <link rel="prev" title="User manual" href="user-manual.html" /> 
   </head>
@@ -41,7 +41,7 @@
         <li class="right" >
           <a href="user-manual.html" title="User manual"
              accesskey="P">previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -662,12 +662,12 @@ K(m)&amp;=\int_0^{\pi/2}\frac{\mathrm d\varphi}{\sqrt{1-m^2\sin^2{\varphi}}},\en
         <li class="right" >
           <a href="user-manual.html" title="User manual"
              >previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer">
-        &copy; Copyright 2020, Andreas Suter.
-      Last updated on Aug 29, 2020.
+        &copy; Copyright 2021, Andreas Suter.
+      Last updated on Jan 23, 2021.
       Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.
     </div>
   </body>
diff --git a/doc/html/user-manual.html b/doc/html/user-manual.html
index d6e054c3..7aaee984 100644
--- a/doc/html/user-manual.html
+++ b/doc/html/user-manual.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>User manual &mdash; musrfit 1.6.4 documentation</title>
+    <title>User manual &mdash; musrfit 1.6.5 documentation</title>
     
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.6.4',
+        VERSION:     '1.6.5',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -24,7 +24,7 @@
     <script type="text/javascript" src="_static/underscore.js"></script>
     <script type="text/javascript" src="_static/doctools.js"></script>
     <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
-    <link rel="top" title="musrfit 1.6.4 documentation" href="index.html" />
+    <link rel="top" title="musrfit 1.6.5 documentation" href="index.html" />
     <link rel="next" title="Documentation of user libs (user functions)" href="user-libs.html" />
     <link rel="prev" title="Tutorial for musrfit" href="tutorial.html" /> 
   </head>
@@ -41,7 +41,7 @@
         <li class="right" >
           <a href="tutorial.html" title="Tutorial for musrfit"
              accesskey="P">previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -2557,12 +2557,12 @@ In case this cannot be ensured, the parallelization can be disabled by <em>&#821
         <li class="right" >
           <a href="tutorial.html" title="Tutorial for musrfit"
              >previous</a> |</li>
-        <li><a href="index.html">musrfit 1.6.4 documentation</a> &raquo;</li> 
+        <li><a href="index.html">musrfit 1.6.5 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer">
-        &copy; Copyright 2020, Andreas Suter.
-      Last updated on Aug 29, 2020.
+        &copy; Copyright 2021, Andreas Suter.
+      Last updated on Jan 23, 2021.
       Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.
     </div>
   </body>
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index c7b2d703..e0a15532 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,13 +1,15 @@
 #--- add further sub-directories ----------------------------------------------
 add_subdirectory(classes)
 add_subdirectory(external)
-if (Qt5Core_FOUND)
+if (Qt6Core_FOUND)
+  add_subdirectory(musredit_qt6)
+elseif (Qt5Core_FOUND)
   add_subdirectory(musredit_qt5)
 elseif (Qt4_FOUND)
   add_subdirectory(musredit)
 elseif (QT_FOUND)
   add_subdirectory(musrgui)
-endif (Qt5Core_FOUND)
+endif ()
 
 #--- define the musrfit libs --------------------------------------------------
 set(MUSRFIT_LIBS ${MUSRFIT_LIBS} mud)
diff --git a/src/classes/CMakeLists.txt b/src/classes/CMakeLists.txt
index 69fbb06e..60f7b06b 100644
--- a/src/classes/CMakeLists.txt
+++ b/src/classes/CMakeLists.txt
@@ -140,8 +140,10 @@ endif (OpenMP_FOUND)
 
 #--- add DKS compiler flags if enabled ----------------------------------------
 if (DKS_FOUND)
-  set(DKS_CXX_FLAGS -DDKS_OPENCL -DDKS_CUDA  -I${CUDA_INCLUDE_DIRS} -I${DKS_INCLUDE_DIR}) 
-  target_compile_options(PMusr PUBLIC ${DKS_CXX_FLAGS})
+  if (CUDA_FOUND)
+    set(DKS_CXX_FLAGS -DDKS_OPENCL -DDKS_CUDA  -I${CUDA_INCLUDE_DIRS} -I${DKS_INCLUDE_DIR}) 
+    target_compile_options(PMusr PUBLIC ${DKS_CXX_FLAGS})
+  endif (CUDA_FOUND)
 endif (DKS_FOUND)
 
 #--- add library dependencies -------------------------------------------------
diff --git a/src/musredit_qt6/CMakeLists.txt b/src/musredit_qt6/CMakeLists.txt
new file mode 100644
index 00000000..0aad99a7
--- /dev/null
+++ b/src/musredit_qt6/CMakeLists.txt
@@ -0,0 +1,12 @@
+#--- musredit_qt6 for Qt > 6.0 ------------------------------------------------
+
+#--- create musrfit-info.h ----------------------------------------------------
+configure_file(
+  ${CMAKE_SOURCE_DIR}/cmake/musrfit-info.h.in
+  ${CMAKE_CURRENT_BINARY_DIR}/musrfit-info.h
+)
+
+add_subdirectory(musredit)
+add_subdirectory(musrStep)
+add_subdirectory(musrWiz)
+add_subdirectory(mupp)
diff --git a/src/musredit_qt6/mupp/CMakeLists.txt b/src/musredit_qt6/mupp/CMakeLists.txt
new file mode 100644
index 00000000..70ff1cbf
--- /dev/null
+++ b/src/musredit_qt6/mupp/CMakeLists.txt
@@ -0,0 +1,107 @@
+#--- mupp for Qt > 6.0 --------------------------------------------------------
+
+#--- Find includes in corresponding build directories -------------------------
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+#--- instruct CMake to run moc automatically when needed ----------------------
+set(CMAKE_AUTOMOC ON)
+
+#--- define mupp version ------------------------------------------------------
+set(mupp_VERSION 1.0.0)
+
+#--- mupp_version.h generation - START ----------------------------------------
+configure_file(
+  ${CMAKE_CURRENT_SOURCE_DIR}/cmake/configure_mupp_version_file.cmake.in
+  ${CMAKE_CURRENT_BINARY_DIR}/configure_mupp_version_file.cmake
+  @ONLY
+)
+
+add_custom_command(
+  OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/mupp_version.h
+  COMMAND ${CMAKE_COMMAND} -P
+    ${CMAKE_CURRENT_BINARY_DIR}/configure_mupp_version_file.cmake
+  DEPENDS
+    ${CMAKE_CURRENT_BINARY_DIR}/configure_mupp_version_file.cmake
+    ${CMAKE_CURRENT_SOURCE_DIR}/cmake/mupp_version.h.in
+  COMMENT "Configuring mupp_version.h"
+  VERBATIM
+)
+
+add_custom_target(
+  configure_mupp_version ALL
+  DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/mupp_version.h
+)
+#--- mupp_version.h generation - END ------------------------------------------
+
+add_subdirectory(plotter)
+
+qt6_add_resources(qrc_mupp.cpp mupp.qrc)
+set_property(SOURCE qrc_mupp.cpp PROPERTY SKIP_AUTOMOC ON) # needed for cmake 3.x
+
+set(GENERATED_HEADER_FILES
+  mupp_version.h
+)
+set_property(SOURCE mupp_version.h PROPERTY SKIP_AUTOMOC ON) # needed for cmake 3.x
+
+set(MUPP_SOURCE_FILES
+  mupp.cpp 
+  PmuppAdmin.cpp 
+  Pmupp.cpp
+  PmuppScript.cpp 
+  PmuppGui.cpp
+  PVarDialog.cpp
+)
+
+if (APPLE)
+  set(RESOURCE_FILES icons/mupp.icns)
+  add_executable(mupp 
+     MACOSX_BUNDLE ${GENERATED_HEADER_FILES} ${MUPP_SOURCE_FILES} 
+     qrc_mupp.cpp ${RESOURCE_FILES}
+  )
+else (APPLE)
+  add_executable(mupp ${GENERATED_HEADER_FILES} ${MUPP_SOURCE_FILES} qrc_mupp.cpp)
+endif (APPLE)
+
+#--- compiler option to workaround a little cast problem for some 
+#--- boost/compiler combinations ----------------------------------------------
+target_compile_options(mupp
+  PRIVATE
+    "-fpermissive"  
+)
+
+#--- add the variable related sources -----------------------------------------
+add_subdirectory(var)
+
+#--- add the necessary header includes ----------------------------------------
+target_include_directories(mupp 
+  BEFORE PRIVATE
+    $<BUILD_INTERFACE:${Boost_INCLUDE_DIR}>
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/var/include>
+)
+
+#--- use the Widgets and XML modules from Qt5 ---------------------------------
+target_link_libraries(mupp Qt6::Widgets Qt6::Xml)
+
+#--- if macOS make an app rather than just a command line executable ----------
+set_target_properties(mupp PROPERTIES
+  VERSION ${mupp_VERSION}
+)
+if (APPLE)
+  set_target_properties(mupp PROPERTIES
+    MACOSX_BUNDLE TRUE
+    MACOSX_BUNDLE_BUNDLE_NAME "mupp"
+    MACOSX_BUNDLE_INFO_STRING "mupp is used to plot parameters from musrfit collections."
+    MACOSX_BUNDLE_ICON_FILE "mupp.icns"
+    MACOSX_BUNDLE_LONG_VERSION_STRING "${mupp_VERSION}"
+    MACOSX_FRAMEWORK_IDENTIFIER ch.psi.mupp
+    MACOSX_BUNDLE_COPYRIGHT "Andreas Suter"
+    RESOURCE "${RESOURCE_FILES}"
+  )
+endif (APPLE)
+
+#--- install ------------------------------------------------------------------
+if (APPLE)
+  install(TARGETS mupp BUNDLE DESTINATION /Applications)
+else (APPLE)
+  install(TARGETS mupp DESTINATION ${CMAKE_INSTALL_PREFIX}/bin)
+endif (APPLE)
diff --git a/src/musredit_qt6/mupp/PVarDialog.cpp b/src/musredit_qt6/mupp/PVarDialog.cpp
new file mode 100644
index 00000000..e46b1cab
--- /dev/null
+++ b/src/musredit_qt6/mupp/PVarDialog.cpp
@@ -0,0 +1,459 @@
+/***************************************************************************
+
+  PVarDialog.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <iostream>
+
+#include <QVBoxLayout>
+#include <QHBoxLayout>
+#include <QSplitter>
+#include <QListWidgetItem>
+#include <QMessageBox>
+#include <QLabel>
+#include <QRegularExpression>
+
+#include "PVarDialog.h"
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PShowVarNameDialog::PShowVarNameDialog. Ctor
+ * @param info containing the necessary information of the collection
+ */
+PShowVarNameDialog::PShowVarNameDialog(PCollInfo &info)
+{
+  // if fCollName is a path name, extract the fln
+  QString collNameStr(info.fCollName);
+  if (collNameStr.contains("/")) {
+    QStringList tok = collNameStr.split('/', Qt::SkipEmptyParts);
+    collNameStr = tok[tok.count()-1];
+  }
+  QLabel *collName = new QLabel(collNameStr);
+  QLabel *numVars = new QLabel(QString("#variables: %1").arg(info.fVarName.count()));
+  QListWidget *list = new QListWidget();
+  for (int i=0; i<info.fVarName.count(); i++) {
+    QListWidgetItem *newItem = new QListWidgetItem;
+    newItem->setText(QString("%1 : %2").arg(i, 2).arg(info.fVarName[i]));
+    list->addItem(newItem);
+  }
+  QPushButton *done = new QPushButton("Done", this);
+
+  QVBoxLayout *vLayout = new QVBoxLayout;
+  vLayout->addWidget(collName);
+  vLayout->addWidget(numVars);
+  vLayout->addWidget(list);
+  vLayout->addWidget(done);
+
+  connect(done, SIGNAL( clicked() ), this, SLOT( accept() ));
+
+  resize(300, 450);
+  setLayout(vLayout);
+  setModal(false);
+  setWindowTitle("Variable Names");
+
+  QString iconName("");
+  if (true) // <-- NEEDS TO BE PROPERLY IMPLEMENTED
+    iconName = QString(":/icons/varEdit-dark.svg");
+  else
+    iconName = QString(":/icons/varEdit-plain.svg");
+  setWindowIcon( QIcon( QPixmap(iconName) ) );
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PVarDialog::PVarDialog. Variable GUI allowing the users to define
+ * variables.
+ * @param collection_list list of all the collections
+ * @param darkTheme plain/dark theme flag
+ * @param parent parent widget pointer
+ * @param f window flag
+ */
+PVarDialog::PVarDialog(QVector<PCollInfo> collection_list, bool darkTheme,
+                       QWidget *parent, Qt::WindowFlags f) :
+  QDialog(parent, f), fCollList(collection_list)
+{
+  fVarEdit = new QPlainTextEdit();
+  fCollectionView = new QListWidget();
+  fCancel = new QPushButton("&Cancel", this);
+  fCheck = new QPushButton("Chec&k", this);
+  fAdd = new QPushButton("&Add", this);
+  fHelp = new QPushButton("&Help", this);
+  fShowVarName = new QPushButton("Show&VarName", this);
+
+  // fill collection view
+  for (int i=0; i<fCollList.count(); i++) {
+    QListWidgetItem *newItem = new QListWidgetItem;
+    newItem->setText(fCollList[i].fCollName);
+    fCollectionView->addItem(newItem);
+  }
+  fCollectionView->setCurrentRow(0, QItemSelectionModel::Select);
+  fCollectionView->setSelectionMode(QAbstractItemView::ExtendedSelection);
+
+  QHBoxLayout *hLayout0 = new QHBoxLayout;
+  hLayout0->addWidget(fShowVarName);
+  hLayout0->addWidget(fHelp);
+
+  QHBoxLayout *hLayout1 = new QHBoxLayout;
+  hLayout1->addWidget(fCancel);
+  hLayout1->addWidget(fCheck);
+  hLayout1->addWidget(fAdd);
+
+  QLabel *varLabel = new QLabel("Edit Variables:");
+  QVBoxLayout *varVLayout = new QVBoxLayout;
+  varVLayout->addWidget(varLabel);
+  varVLayout->addWidget(fVarEdit);
+
+  QLabel *collLabel = new QLabel("Collections:");
+  QVBoxLayout *collVLayout = new QVBoxLayout;
+  collVLayout->addWidget(collLabel);
+  collVLayout->addWidget(fCollectionView);
+
+  QWidget *varWidget = new QWidget(this); // only needed since splitter needs a QWidget
+  varWidget->setLayout(varVLayout);
+  QWidget *collWidget = new QWidget(this); // only needed since splitter needs a QWidget
+  collWidget->setLayout(collVLayout);
+
+  QSplitter *splitter = new QSplitter(Qt::Vertical, this);
+  splitter->addWidget(varWidget);
+  splitter->addWidget(collWidget);
+
+  QVBoxLayout *vLayout = new QVBoxLayout;
+  vLayout->addWidget(splitter);
+  vLayout->addLayout(hLayout0);
+  vLayout->addLayout(hLayout1);
+
+  fVarEdit->resize(600, 300);
+  setLayout(vLayout);
+  resize(600, 450);
+
+  connect(fCancel, SIGNAL( clicked() ), this, SLOT( reject() ));
+  connect(fCheck, SIGNAL( clicked() ), this, SLOT( check() ));
+  connect(fAdd, SIGNAL( clicked() ), this, SLOT( add() ));
+  connect(fHelp, SIGNAL( clicked() ), this, SLOT( help() ));
+  connect(fShowVarName, SIGNAL( clicked() ), this, SLOT( showVarNames() ));
+
+  QString iconName("");
+  if (darkTheme)
+    iconName = QString(":/icons/varEdit-dark.svg");
+  else
+    iconName = QString(":/icons/varEdit-plain.svg");
+  setWindowIcon( QIcon( QPixmap(iconName) ) );
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PVarDialog::check. Allows the user to check the variable string.
+ */
+void PVarDialog::check()
+{
+  if (!basic_check())
+    return;
+
+  if (!var_consistency_check())
+    return;
+
+  // create the collection index vector
+  QVector<int> idx;
+  QList<QListWidgetItem *> selected = fCollectionView->selectedItems();
+  for (int i=0; i<selected.count(); i++) {
+    idx.push_back(fCollectionView->row(selected[i]));
+  }
+  emit check_request(fVarEdit->toPlainText(), idx);
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PVarDialog::add. It is used to initiate the add variable to the mupp GUI.
+ */
+void PVarDialog::add()
+{
+  if (fVarEdit->toPlainText().isEmpty()) {
+    QMessageBox::critical(this, "**ERROR**", "No input available.");
+    return;
+  }
+  if (fCollectionView->selectedItems().count() == 0) {
+    QMessageBox::critical(this, "**ERROR**", "One or more collection(s) need to linked to the variable(s).");
+    return;
+  }
+
+  if (!basic_check())
+    return;
+
+  if (!var_consistency_check())
+    return;
+
+  // create the collection index vector
+  QVector<int> idx;
+  QList<QListWidgetItem *> selected = fCollectionView->selectedItems();
+  for (int i=0; i<selected.count(); i++) {
+    idx.push_back(fCollectionView->row(selected[i]));
+  }
+
+  emit add_request(fVarEdit->toPlainText(), idx);
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PVarDialog::help
+ */
+void PVarDialog::help()
+{
+  QMessageBox::information(this, "Var Help",
+       "Syntax: var <var_name> = <expr>.\n"\
+       "<expr> can contain identifiers defined in the collections.\n"\
+       "An identifier is an addressed variable which is defined\n"\
+       "by a preceeding '$' before the variable name.\n"\
+       "Example: variable sigma -> identifier $sigma.\n"\
+       "Example:\nvar sigSC = pow(abs(pow($sigma,2.0)-pow(0.11,2.0)),0.5)");
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PVarDialog::showVarNames. Show a variable name dialog for a given
+ * selected collection.
+ */
+void PVarDialog::showVarNames()
+{
+  // get the selected collection
+  if (fCollectionView->selectedItems().count() == 0) {
+    QMessageBox::critical(this, "**ERROR**", "At least one collection needs to be selected.");
+    return;
+  }
+  if (fCollectionView->selectedItems().count() > 1) {
+    QMessageBox::critical(this, "**ERROR**", "Currently only the vars of a single collection can be shown.");
+    return;
+  }
+  int idx = fCollectionView->currentRow();
+
+  if (idx >= fCollList.count()) {
+    QMessageBox::critical(this, "**ERROR**", QString("Collection idx=%1 > #Collections=%2. This never should have happened.").arg(idx).arg(fCollList.count()));
+    return;
+  }
+
+  PCollInfo info = fCollList[idx];
+
+  PShowVarNameDialog *dialog = new PShowVarNameDialog(info);
+  dialog->show();
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PVarDialog::basic_check. Carry out basic checks before feeding it
+ * to the parser.
+ * @return true on success
+ */
+bool PVarDialog::basic_check()
+{
+  QString varStr = fVarEdit->toPlainText();
+  bool ok;
+
+  if (varStr.isEmpty()) {
+    QMessageBox::critical(this, "**ERROR**", "No input available.");
+    return false;
+  }
+  if (fCollectionView->selectedItems().count() == 0) {
+    QMessageBox::critical(this, "**ERROR**", "One or more collection(s) need to linked to the variable(s).");
+    return false;
+  }
+
+  // tokenize variable input
+  QStringList strList = varStr.split(QRegularExpression("\\s+"), Qt::SkipEmptyParts);
+
+  // check if there are ANY var definitions
+  ok = false;
+  for (int i=0; i<strList.count(); i++) {
+    if (strList[i] == "var") {
+      ok = true;
+      break;
+    }
+  }
+  if (!ok) {
+    QMessageBox::critical(this, "**ERROR**", "<b>NO</b> 'var' definition found.");
+    return false;
+  }
+
+  // check that for each variable, there is also an Err variable present
+  QStringList varNames = collectVarNames(strList, ok);
+  if (!ok) {
+    QMessageBox::critical(this, "**ERROR**", "found 'var' without <var_name>.");
+    return false;
+  }
+  QString name("");
+  if (!hasErrorDef(varNames, name)) {
+    QMessageBox::critical(this, "**ERROR**", QString("found &lt;var_name&gt;=%1 without corresponding %1Err.<br>Both, a variable <b>and</b> its corresponding error variable needs to be defined.").arg(name));
+    return false;
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PVarDialog::var_consistency_check. Variable consistency checks. For
+ * instance it is checked that for each variable there is also the corresponding
+ * error variable defined.
+ * @return true on success
+ */
+bool PVarDialog::var_consistency_check()
+{
+  QString varStr = fVarEdit->toPlainText();
+
+  // collect all identifiers
+  int idx = 0, idxEnd = 0;
+  QStringList varNames;
+  QVector<int> isIdendifier;
+  char ch;
+  bool done;
+  do {
+    idx = varStr.indexOf("$", idx);
+    if (idx > -1) { // found identifier
+      idxEnd = idx+1;
+      done = false;
+      do {
+        ch = varStr[idxEnd].toLatin1();
+        if (isalnum(ch) || (ch == '_'))
+          idxEnd++;
+        else
+          done = true;
+      } while (!done && (idxEnd <= varStr.length()));
+      varNames << varStr.mid(idx+1, idxEnd-idx-1);
+      isIdendifier.push_back(1);
+      idx++;
+    }
+  } while (idx != -1);
+
+  // collect all the variable names
+  idx = 0;
+  do {
+    idx = varStr.indexOf("var ", idx);
+    if (idx > -1) { // found variable
+      idxEnd = varStr.indexOf("=", idx);
+      if (idxEnd == -1) {
+        return false;
+      }
+      varNames << varStr.mid(idx+4, idxEnd-idx-5);
+      isIdendifier.push_back(0);
+      idx++;
+    }
+  } while (idx != -1);
+
+  // make sure that identifier is found in collection if it is not a variable
+  bool isVar = false;
+  bool found = false;
+  QString str;
+  QList<QListWidgetItem *> selColl = fCollectionView->selectedItems();
+  for (int i=0; i<varNames.count(); i++) {
+    if (isIdendifier[i] == 0) // it is a variable, hence nothing to be done
+      continue;
+    str = varNames[i];
+    if (str.endsWith("Err")) {
+      str = str.left(str.indexOf("Err"));
+    }
+    isVar = false;
+    for (int j=i+1; j<varNames.count(); j++) {
+      if ((varNames[j] == str) && isIdendifier[j] == 0) {
+        isVar = true;
+        break;
+      }
+    }
+    if (isVar)
+      continue;
+
+    for (int j=0; j<selColl.count(); j++) {
+      idx = fCollectionView->row(selColl[j]);
+      found = false;
+      for (int k=0; k<fCollList[idx].fVarName.count(); k++) {
+        if (str == fCollList[idx].fVarName[k]) {
+          found = true;
+          break;
+        }
+      }
+      if (!found) {
+        QMessageBox::critical(this, "**ERROR**", QString("Identifier '%1' not present in selected collection '%2'").arg(str).arg(fCollList[idx].fCollName));
+        return false;
+      }
+    }
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PVarDialog::collectVarNames. Collect variable names from edit variable.
+ * @param list input list
+ * @param ok true if ok
+ * @return return variable list
+ */
+QStringList PVarDialog::collectVarNames(QStringList &list, bool &ok)
+{
+  QStringList name;
+
+  ok = true;
+  for (int i=0; i<list.count(); i++) {
+    if (list[i] == "var") {
+      if (i+1 >= list.count()) {
+        ok = false;
+      } else {
+        name << list[i+1];
+        i++;
+      }
+    }
+  }
+
+  return name;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PVarDialog::hasErrorDef. Check for error definition
+ * @param varNames variable name list
+ * @param name failed variable name
+ * @return true on success
+ */
+bool PVarDialog::hasErrorDef(QStringList &varNames, QString &name)
+{
+  QString errStr;
+  for (int i=0; i<varNames.count(); i++) {
+    if (!varNames[i].contains("Err", Qt::CaseSensitive)) { // not an error variable
+      errStr = varNames[i] + "Err";
+      bool ok = false;
+      for (int j=0; j<varNames.count(); j++) {
+        if (varNames[j] == errStr) {
+          ok = true;
+          break;
+        }
+      }
+      if (!ok) {
+        name = varNames[i];
+        return ok;
+      }
+    }
+  }
+
+  return true;
+}
diff --git a/src/musredit_qt6/mupp/PVarDialog.h b/src/musredit_qt6/mupp/PVarDialog.h
new file mode 100644
index 00000000..f1290a53
--- /dev/null
+++ b/src/musredit_qt6/mupp/PVarDialog.h
@@ -0,0 +1,102 @@
+/***************************************************************************
+
+  PVarDialog.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PVARDIALOG_H_
+#define _PVARDIALOG_H_
+
+#include <QDialog>
+#include <QPushButton>
+#include <QPlainTextEdit>
+#include <QListWidget>
+#include <QVector>
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief The PCollInfo struct
+ */
+struct PCollInfo
+{
+  QString fCollName; ///< collection name
+  QStringList fVarName; ///< variable names of the given collection
+};
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief The PShowVarNameDialog class. Class used to create a show variable
+ * name dialog.
+ */
+class PShowVarNameDialog : public QDialog
+{
+  Q_OBJECT
+
+  public:
+    PShowVarNameDialog(PCollInfo &info);
+};
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief The PVarDialog class
+ */
+class PVarDialog : public QDialog
+{
+  Q_OBJECT
+
+  public:
+    PVarDialog(QVector<PCollInfo> collection_list, bool darkTheme,
+               QWidget *parent = nullptr,
+               Qt::WindowFlags f = Qt::WindowFlags());
+
+  private:
+    QPlainTextEdit *fVarEdit;
+    QListWidget *fCollectionView;
+    QPushButton *fCancel;
+    QPushButton *fAdd;
+    QPushButton *fCheck;
+    QPushButton *fHelp;
+    QPushButton *fShowVarName;
+
+    QVector<PCollInfo> fCollList;
+
+    bool basic_check();
+    bool var_consistency_check();
+    QStringList collectVarNames(QStringList &list, bool& ok);
+    bool hasErrorDef(QStringList &varNames, QString& name);
+
+  private slots:
+    void check();
+    void add();
+    void help();
+    void showVarNames();
+
+  signals:
+    void check_request(QString varStr, QVector<int> idx);
+    void add_request(QString varStr, QVector<int> idx);
+};
+
+#endif // _PVARDIALOG_H_
diff --git a/src/musredit_qt6/mupp/Pmupp.cpp b/src/musredit_qt6/mupp/Pmupp.cpp
new file mode 100644
index 00000000..dda003bc
--- /dev/null
+++ b/src/musredit_qt6/mupp/Pmupp.cpp
@@ -0,0 +1,1044 @@
+/***************************************************************************
+
+  Pmupp.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <iostream>
+#include <cmath>
+
+#include <QFile>
+#include <QTextStream>
+#include <QString>
+#include <QStringList>
+#include <QInputDialog>
+#include <QDir>
+#include <QLineEdit>
+#include <QMessageBox>
+#include <QProcess>
+#include <QProcessEnvironment>
+#include <QRegularExpression>
+
+#include <QtDebug>
+
+#include "Pmupp.h"
+
+#define PMUPP_UNDEF    -1
+#define PMUPP_VALUE     0
+#define PMUPP_POSNEGERR 1
+#define PMUPP_POSERR    2
+#define PMUPP_NEGERR    3
+#define PMUPP_RUN       4
+
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ * @brief PmuppParam::PmuppParam. Ctor
+ */
+PmuppParam::PmuppParam() {
+  ResetParam();
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppParam::PmuppParam. Ctor
+ * @param name parameter name
+ * @param param parameter value
+ * @param posErr parameter error
+ */
+PmuppParam::PmuppParam(QString name, double param, double posErr)
+{
+  SetParam(name, param, posErr);
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppParam::PmuppParam. Ctor
+ * @param name parameter name
+ * @param param parameter value
+ * @param posErr positive parameter error
+ * @param negErr negative parameter error
+ */
+PmuppParam::PmuppParam(QString name, double param, double posErr, double negErr)
+{
+  SetParam(name, param, posErr, negErr);
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppParam::ResetParam. Reset the parameter values
+ */
+void PmuppParam::ResetParam()
+{
+  fName = "";
+  fValue = MUPP_UNDEF;
+  fPosErr = MUPP_UNDEF;
+  fNegErr = MUPP_UNDEF;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppParam::SetParam. Set a parameter
+ * @param name parameter name
+ * @param param parameter value
+ * @param posErr parameter error
+ */
+void PmuppParam::SetParam(QString name, double param, double posErr)
+{
+  fName = name;
+  fValue = param;
+  fPosErr = posErr;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppParam::SetParam. Set a parameter
+ * @param name parameter name
+ * @param param parameter value
+ * @param posErr positive parameter value
+ * @param negErr negative parameter value
+ */
+void PmuppParam::SetParam(QString name, double param, double posErr, double negErr)
+{
+  fName = name;
+  fValue = param;
+  fPosErr = posErr;
+  fNegErr = negErr;
+}
+
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ * @brief PmuppRun::GetParam. Get a parameter from a run
+ * @param idx index of the parameter
+ * @return the parameter value
+ */
+PmuppParam PmuppRun::GetParam(unsigned int idx)
+{
+  PmuppParam param;
+
+  if (idx < (unsigned int)fParam.size())
+    param = fParam[idx];
+
+  return param;
+}
+
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ * @brief PmuppCollection::GetRun. Returns a run from a collection.
+ * @param idx of the run in a collection
+ * @return a run from a collection
+ */
+PmuppRun PmuppCollection::GetRun(unsigned int idx)
+{
+  PmuppRun run;
+
+  if (idx < (unsigned int)fRun.size())
+    run = fRun[idx];
+
+  return run;
+}
+
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ * @brief PParamDataHandler::NewCollection. Adds an empty new collection with
+ * name 'name'.
+ * @param name of the new collection
+ */
+void PParamDataHandler::NewCollection(const QString name)
+{
+  PmuppCollection collection;
+  collection.SetName(name);
+
+  fCollection.push_back(collection);
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PParamDataHandler::analyzeFileList. In case the input is given by
+ * msr-files, the structure of the file names needs to be analyzed that
+ * msr2data can be called.
+ *
+ * @param fln list of msr-files to be analyzed.
+ * @param collectionName output collection name (db-/dat-file).
+ * @param arg argument list which is needed to feed msr2data
+ * @param workDir working directory
+ * @param errorMsg error message in case something went wrong.
+ *
+ * @return true if successful, false otherwise
+ */
+bool PParamDataHandler::analyzeFileList(const QStringList &fln, QString &collectionName,
+                                        QStringList &arg, QString &workDir, QString &errorMsg)
+{
+  // 1) check all the msr-files have the same structure: <runNo><extension>.msr with <extension> the same
+  //    for all msr-files present.
+  QString ext("");
+  QStringList run;
+
+  QStringList tok;
+  int pos0=-1, pos1=-1;
+  QString flnCurrent(""), extCurrent(""), runStr("");
+  bool ok;
+
+  pos0 = fln[0].lastIndexOf("/");
+  workDir = fln[0].left(pos0);
+
+  for (int i=0; i<fln.count(); i++) {
+    // get file name from pathName
+    tok = fln[i].split("/");
+    flnCurrent = tok[tok.size()-1];
+
+    // get index of position between <run> and <extenstion>
+    pos0 = flnCurrent.indexOf("_");
+    if (pos0 == -1) {
+      errorMsg = "msr-file name has a structure which cannot be handled.\n\
+                  It should be <run><extension>, where <run> is the run number\n\
+                  and <extension> needs to start with a '_'.";
+       return false;
+    }
+    pos1 = flnCurrent.lastIndexOf(".");
+    if ((pos1 == -1) || (pos1 < pos0)) {
+      errorMsg = "msr-file name has a structure which cannot be handled.\n\
+                  It should be <run><extension>.msr, where <run> is the run number\n\
+                  and <extension> needs to start with a '_'.";
+       return false;
+    }
+
+    // get run number
+    runStr = flnCurrent.left(pos0);
+    runStr.toInt(&ok); // output not needed, only check that it is a number
+    if (!ok) {
+      errorMsg = QString("Found run number string '%1' which is not a number.").arg(runStr);
+      return false;
+    }
+    run << runStr;
+
+    // keep extension
+    if (i == 0)
+      ext = flnCurrent.mid(pos0, pos1-pos0);
+    else
+      extCurrent = flnCurrent.mid(pos0, pos1-pos0);
+
+    // make sure all extensions are identical
+    if ((i>0) && (ext != extCurrent)) {
+      errorMsg = "Currently mixed msr-file extensions cannot be handled.";
+      return false;
+    }
+  }
+
+  arg << "[";
+  for (int i=0; i<run.size(); i++)
+    arg << run[i];
+  arg << "]";
+  arg << ext;
+  arg << "-o";
+  arg << collectionName;
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PParamDataHandler::ReadParamFile. Reads a msr-file.
+ * @param fln file name of the msr-file to be read
+ * @param errorMsg error message in case reading fails.
+ *
+ * @return true on success, otherwise false.
+ */
+bool PParamDataHandler::ReadParamFile(const QStringList fln, QString &errorMsg)
+{
+  bool valid = true;
+  PmuppCollection collection;
+  QString collName("");
+
+  // msr-file list
+  if (fln[0].endsWith(".msr")) {
+    bool ok=false;
+    collName = QInputDialog::getText(0, "Get Collection Name", "Please enter a collection name",
+                                             QLineEdit::Normal, "coll007", &ok);
+    if (!ok || collName.isEmpty())
+      return false;
+
+    // add necessary extension
+    collName += ".db";
+
+    // analyse file name list to get the appropriate parts for msr2data
+    QStringList arg;
+    QString workDir("./");
+    if (!analyzeFileList(fln, collName, arg, workDir, errorMsg))
+      return false;
+
+    // make sure that the system environment variables are properly set
+    QString cmd("");
+    fProc = new QProcess(this);
+    connect( fProc, SIGNAL( readyReadStandardOutput() ), this, SLOT( readFromStdOut() ) );
+    connect( fProc, SIGNAL( readyReadStandardError() ), this, SLOT( readFromStdErr() ) );
+    connect( fProc, SIGNAL( finished(int, QProcess::ExitStatus) ), this, SLOT( processDone(int, QProcess::ExitStatus) ) );
+
+    QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+    env.insert("LD_LIBRARY_PATH", env.value("ROOTSYS") + "/lib:" + env.value("LD_LIBRARY_PATH"));
+    cmd = env.value("MUSRFITPATH") + QString("/msr2data");
+    if (!QFile::exists(cmd)) { // MUSRFITPATH not set?
+      // try ROOTSYS
+      cmd = env.value("ROOTSYS") + QString("/bin/msr2data");
+      if (!QFile::exists(cmd)) {
+        errorMsg = "cannot find msr2data need here.";
+        return false;
+      }
+    }
+    QString pathName = workDir + QString("/") + collName;
+    if (QFile::exists(pathName)) // if collection already exists
+      QFile::remove(pathName);   // delete it
+    fProc->setProcessEnvironment(env);
+    fProc->setWorkingDirectory(workDir);
+    fProc->start(cmd, arg);
+    if (!fProc->waitForFinished()) {
+      errorMsg = QString(tr("Could not execute the output command: ")+cmd[0]);
+      return false;
+    }
+
+    // since the db-file should now be present, just load it
+    collection = ReadDbFile(pathName, valid, errorMsg);
+    if (!valid) {      
+      std::cerr << std::endl;
+      std::cerr << "----" << std::endl;
+      std::cerr << "**ERROR** read db-file failure (" << pathName.toLatin1().data() << "." << std::endl;
+      std::cerr << "----" << std::endl;
+      return false;
+    }
+    collName.remove(".db");
+    collection.SetPathName(pathName);
+    collection.SetName(collName);
+    fCollection.push_back(collection);
+  } else { // db-, dat-file list
+    for (int i=0; i<fln.size(); i++) {
+      if (fln[i].endsWith(".db")) {
+        collection = ReadDbFile(fln[i], valid, errorMsg);
+        if (!valid) {
+          return false;
+        }
+        if (!fln[i].startsWith("/")) { // file name only, or relative path
+          if (fln[i].startsWith("..")) { // relative path
+            int idx = fln[i].lastIndexOf("/");
+            if (idx == -1) { // should never happen
+              errorMsg = QString("found '%1' which shouldn't be possible!").arg(fln[i]);
+              std::cerr << std::endl;
+              std::cerr << "----" << std::endl;
+              std::cerr << "**ERROR** " << errorMsg.toLatin1().data() << std::endl;
+              std::cerr << "----" << std::endl;
+              return false;
+            }
+            QString relPath = fln[i].left(idx);
+            QString fileName = fln[i].right(fln[i].length()-idx-1);
+            QDir dir(relPath);
+            collection.SetPathName(dir.absolutePath()+ "/" +fileName);
+          } else { // file name only
+            QDir dir(QDir::currentPath());
+            collection.SetPathName(dir.path() + "/" + fln[i]);
+          }
+        } else {
+          collection.SetPathName(fln[i]);
+        }
+        int pos = fln[i].lastIndexOf("/");
+        collName = "";
+        if (pos == -1)
+          collName = fln[i];
+        else
+          collName = fln[i].right(fln[i].length()-pos-1);
+        collection.SetName(collName);
+        fCollection.push_back(collection);
+      } else if (fln[i].endsWith(".dat") || fln[i].endsWith(".txt")) {
+        collection = ReadColumnParamFile(fln[i], valid, errorMsg);
+        if (!valid) {
+          return false;
+        }
+        fCollection.push_back(collection);
+      } else {
+        errorMsg = QString("unkown file type for ")+fln[i];
+        std::cerr << std::endl;
+        std::cerr << "*********" << std::endl;
+        std::cerr << "**ERROR** " << errorMsg.toLatin1().data() << std::endl;
+        std::cerr << "*********" << std::endl;
+        return false;
+      }
+    }
+  }
+
+  if (valid)
+    emit newData();
+
+  return valid;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PParamDataHandler::ReadDbFile. Reads a db-file.
+ * @param fln file name of the db-file
+ * @param valid true on success, otherwise false
+ * @param errorMsg error messages in case read fails
+ *
+ * @return the collection object containing the db-file on success.
+ */
+PmuppCollection PParamDataHandler::ReadDbFile(const QString fln, bool &valid, QString &errorMsg)
+{
+  PmuppCollection collection;
+  PmuppRun run;
+  QFile file(fln);
+  if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+    errorMsg = QString("couldn't open ") + fln;
+    std::cerr << std::endl;
+    std::cerr << "----" << std::endl;
+    std::cerr << "**ERROR** " << errorMsg.toLatin1().data() << std::endl;
+    std::cerr << "----" << std::endl;
+    valid = false;
+    return collection;
+  }
+
+  QTextStream in(&file);
+  QString line;
+  QStringList token, subTok;
+  bool done = false, param_found = false, ok;
+  int ival;
+  double dval;
+  PmuppParam param;
+  run.SetName(fln);
+  while (!in.atEnd() && !done) {
+    line = in.readLine();
+    // ignore title, abstract, labels and data-tags for now
+    if (line.startsWith("\\-e")) {
+      param_found = true;
+      line = in.readLine();
+    }
+    if (param_found && !line.isEmpty()) {
+      // check if parameter or run number and title
+      token.clear();
+      token = line.split(",", Qt::SkipEmptyParts);
+      if (token.size()==0) {
+        errorMsg = fln + QString(". No parameter tokens.");
+        std::cerr << std::endl;
+        std::cerr << "----" << std::endl;
+        std::cerr << "**ERROR** in " << errorMsg.toLatin1().data() << std::endl;
+        std::cerr << "----" << std::endl;
+        file.close();
+        valid = false;
+        return collection;
+      }
+      ival = token[0].toInt(&ok);
+      if (ok) { // run,,, title found
+        run.SetNumber(ival);
+        QString title("");
+        for (int i=1; i<token.size(); i++)
+          title += token[i];
+        title = title.trimmed();
+        run.SetName(title);
+        // check that the number of parameters is the same for all runs
+        if (collection.GetNoOfRuns() > 0) {
+          if (collection.GetRun(0).GetNoOfParam() != run.GetNoOfParam()) {
+            errorMsg = fln + QString(".\n");
+            errorMsg += QString("  first   run (#%1) has %2 params.\n").arg(collection.GetRun(0).GetNumber()).arg(collection.GetRun(0).GetNoOfParam());
+            errorMsg += QString("  current run (#%1) has %2 params.\n").arg(run.GetNumber()).arg(run.GetNoOfParam());
+            errorMsg += QString("  Inspect your db-file!");
+            std::cerr << std::endl;
+            std::cerr << "----" << std::endl;
+            std::cerr << "**ERROR** in " << errorMsg.toLatin1().data() << std::endl;
+            std::cerr << "----" << std::endl;
+            file.close();
+            valid = false;
+            return collection;
+          }
+        }
+        collection.AddRun(run);
+        run.Clear();
+      } else { // parameter
+        if (token.size() != 4) { // wrong number of parameter tokens
+          std::cerr << std::endl;
+          std::cerr << "----" << std::endl;
+          std::cerr << "**ERROR** in" << fln.toLatin1().data() <<". # parameter tokens != 4." << std::endl;
+          std::cerr << "----" << std::endl;
+          file.close();
+          valid = false;
+          return collection;
+        }
+        subTok = token[0].split("=");
+        if (subTok.size() != 2) {
+          std::cerr << std::endl;
+          std::cerr << "----" << std::endl;
+          std::cerr << "**ERROR** in" << fln.toLatin1().data() <<". parameter name=value token missing." << std::endl;
+          std::cerr << "----" << std::endl;
+          file.close();
+          valid = false;
+          return collection;
+        }
+        QString paramName = subTok[0].trimmed();
+        param.ResetParam();
+        param.SetName(paramName);
+        dval = subTok[1].toDouble(&ok);
+        if (ok) {
+          param.SetValue(dval);
+        } else {
+          std::cerr << std::endl;
+          std::cerr << "----" << std::endl;
+          std::cerr << "**ERROR** in" << fln.toLatin1().data() <<". parameter name=value token missing or wrong?!" << std::endl;
+          std::cerr << "----" << std::endl;
+          file.close();
+          valid = false;
+          return collection;
+        }
+        // pos. err
+        dval = token[1].toDouble(&ok);
+        if (ok) {
+          param.SetPosErr(dval);
+        } else {
+          std::cerr << std::endl;
+          std::cerr << "----" << std::endl;
+          std::cerr << "**ERROR** in" << fln.toLatin1().data() <<". parameter pos. error not a number?!" << std::endl;
+          std::cerr << "----" << std::endl;
+          file.close();
+          valid = false;
+          return collection;
+        }
+        // neg. err
+        dval = token[2].toDouble(&ok);
+        if (ok) {
+          param.SetNegErr(dval);
+        } else {
+          std::cerr << std::endl;
+          std::cerr << "----" << std::endl;
+          std::cerr << "**ERROR** in" << fln.toLatin1().data() <<". parameter neg. error not a number?!" << std::endl;
+          std::cerr << "----" << std::endl;
+          file.close();
+          valid = false;
+          return collection;
+        }
+        run.AddParam(param);
+      }
+    }
+  }
+  if (!param_found) {
+    std::cerr << std::endl;
+    std::cerr << "----" << std::endl;
+    std::cerr << "**ERROR** in" << fln.toLatin1().data() <<". No parameter found." << std::endl;
+    std::cerr << "----" << std::endl;
+  }
+  file.close();
+
+  valid = true;
+
+  return collection;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PParamDataHandler::ReadColumnParamFile. Reads a dat-file
+ * @param fln file name of the dat-file to be read
+ * @param valid true on success, false otherwise.
+ * @param errorMsg error message in case read fails.
+ *
+ * @return the collection object containing the dat-file on success.
+ */
+PmuppCollection PParamDataHandler::ReadColumnParamFile(const QString fln, bool &valid, QString &errorMsg)
+{
+  PmuppCollection collection;
+  PmuppRun run;
+  valid = true;
+
+  QFile file(fln);
+  if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+    errorMsg = QString("couldn't open ")+fln;
+    std::cerr << std::endl;
+    std::cerr << "----" << std::endl;
+    std::cerr << "**ERROR** " << errorMsg.toLatin1().data() << std::endl;
+    std::cerr << "----" << std::endl;
+    valid = false;
+    return collection;
+  }
+
+  QTextStream in(&file);
+  QString line;
+  QStringList token;
+  bool done = false, ok;
+  double dval = 0;
+  int ival;
+  PmuppParam param;
+  run.SetName(fln);
+
+  // read header information
+  line = in.readLine();
+  token = line.split(QRegularExpression("\\s+"), Qt::SkipEmptyParts);
+
+  QVector<QString> headerInfo;
+  QVector<int> headerCode; // 0=value, 1=pos/neg err, 2=pos err, 3=neg err, 4=run number
+  int code=PMUPP_UNDEF;
+  for (int i=0; i<token.size(); i++) {
+    headerInfo.push_back(token[i]);
+    if (token[i].contains("PosErr"))
+      code = PMUPP_POSERR;
+    else if (token[i].contains("NegErr"))
+      code = PMUPP_NEGERR;
+    else if (token[i].contains("Err"))
+      code = PMUPP_POSNEGERR;
+    else if (token[i].contains("RUN"))
+      code = PMUPP_RUN;
+    else
+      code = PMUPP_VALUE;
+    headerCode.push_back(code);
+  }
+
+  // parameters
+  int lineNo = 1;
+  while (!in.atEnd() && !done) {
+    line = in.readLine();
+    if (line.isEmpty())
+      continue;
+    lineNo++;
+    token.clear();
+    token = line.split(QRegularExpression("\\s+"), Qt::SkipEmptyParts);
+    // paranoia check
+    if (token.size() != headerInfo.size()) {
+      errorMsg = QString("size mismatch between header and parameter int line: %1 (header=%2 / param=%3)").arg(lineNo).arg(headerInfo.size()).arg(token.size());
+      std::cerr << std::endl;
+      std::cerr << "----" << std::endl;
+      std::cerr << "**ERROR** " << errorMsg.toLatin1().data() << std::endl;
+      std::cerr << "----" << std::endl;
+      valid = false;
+      file.close();
+      return collection;
+    }
+    for (int i=0; i<token.size(); i++) {
+      if (headerCode[i] == PMUPP_RUN)
+        ival = token[i].toInt(&ok);
+      else
+        dval = token[i].toDouble(&ok);
+      if (!ok) {
+        errorMsg = QString("unrecognized token ('%1') in line %2 (line number: %3)").arg(token[i].toLatin1().data()).arg(line.toLatin1().data()).arg(lineNo);
+        std::cerr << std::endl;
+        std::cerr << "----" << std::endl;
+        std::cerr << "**ERROR** " << errorMsg.toLatin1().data() << std::endl;
+        std::cerr << "----" << std::endl;
+        valid = false;
+        file.close();
+        return collection;
+      }
+
+      if (headerCode[i] == PMUPP_VALUE) {
+        param.SetName(headerInfo[i]);
+        param.SetValue(dval);
+        if (i+1 < token.size()) {
+          if (headerCode[i+1] == PMUPP_VALUE) {
+            param.SetNegErr(0.0);
+            param.SetPosErr(0.0);
+            run.AddParam(param);
+            param.ResetParam();
+          }
+        }
+      } else if (headerCode[i] == PMUPP_POSNEGERR) {
+        param.SetPosErr(dval);
+        param.SetNegErr(dval);
+        run.AddParam(param);
+        param.ResetParam();
+      } else if (headerCode[i] == PMUPP_POSERR) {
+        param.SetPosErr(dval);
+      } else if (headerCode[i] == PMUPP_NEGERR) {
+        param.SetNegErr(dval);
+        run.AddParam(param);
+        param.ResetParam();
+      } else if (headerCode[i] == PMUPP_RUN) {
+        param.ResetParam();
+        run.SetNumber(ival);
+        run.SetName(QString("%1").arg(ival));
+        QString collName("");
+        int pos = fln.lastIndexOf("/");
+        if (pos == -1)
+          collName = fln;
+        else
+          collName = fln.right(fln.length()-pos-1);
+        collection.SetName(collName);
+        collection.AddRun(run);
+        run.Clear();
+      }
+
+    }
+  }
+  file.close();
+
+  return collection;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PParamDataHandler::GetCollection. Get a single collection from all
+ * the loaded collections
+ * @param idx of the collection
+ * @param valid true if collection is found
+ *
+ * @return requested collection on success.
+ */
+PmuppCollection PParamDataHandler::GetCollection(const int idx, bool &valid)
+{
+  valid = true;
+  PmuppCollection collection;
+
+  if ((idx<0) || (idx>=fCollection.size())) {
+    valid = false;
+    return collection;
+  }
+
+  return fCollection[idx];
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PParamDataHandler::GetCollection. Get a pointer of the requested
+ * collection.
+ * @param idx of the collection
+ *
+ * @return requested pointer to the collection on success.
+ */
+PmuppCollection *PParamDataHandler::GetCollection(const int idx)
+{
+  if ((idx<0) || (idx>=fCollection.size())) {
+    return nullptr;
+  }
+
+  return &fCollection[idx];
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PParamDataHandler::GetCollection. Get collection by name.
+ * @param name of the requested collection
+ * @param valid true if found
+ *
+ * @return requested collection on success.
+ */
+PmuppCollection PParamDataHandler::GetCollection(const QString name, bool &valid)
+{
+  valid = true;
+  PmuppCollection collection;
+
+  int idx=-1;
+  for (int i=0; i<fCollection.size(); i++) {
+    if (!fCollection[i].GetName().compare(name)) {
+      idx = i;
+      break;
+    }
+  }
+
+  if (idx==-1) { // not found
+    valid = false;
+    return collection;
+  }
+
+  return fCollection[idx];
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PParamDataHandler::GetCollection. Get collection pointer by name.
+ * @param name of the requested collection
+ *
+ * @return pointer of the requested collection on success, nullptr otherwise
+ */
+PmuppCollection *PParamDataHandler::GetCollection(const QString name)
+{
+  int idx=-1;
+  for (int i=0; i<fCollection.size(); i++) {
+    if (!fCollection[i].GetName().compare(name)) {
+      idx = i;
+      break;
+    }
+  }
+
+  if (idx==-1) { // not found
+    return nullptr;
+  }
+
+  return &fCollection[idx];
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PParamDataHandler::GetCollectionIndex. Get the collection index of
+ * a given collection name.
+ * @param name of the requested collection
+ *
+ * @return index of the requested collection on success, otherwise -1.
+ */
+int PParamDataHandler::GetCollectionIndex(const QString name)
+{
+  int idx=-1;
+
+  for (int i=0; i<fCollection.size(); i++) {
+    if (!fCollection[i].GetName().compare(name)) {
+      idx = i;
+      break;
+    }
+  }
+
+  return idx;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PParamDataHandler::GetCollectionName
+ * @param idx
+ * @return
+ */
+QString PParamDataHandler::GetCollectionName(const int idx)
+{
+  QString name = QString("??");
+
+  if ((idx >= 0) && (idx < fCollection.size()))
+    name = fCollection[idx].GetName();
+
+  return name;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PParamDataHandler::GetValues. Get the data values of a parameter of
+ * a requested collection.
+ * @param collName name of the collection
+ * @param paramName parameter name
+ *
+ * @return data values of the requested parameter name of the collection collName.
+ *         Empty data vector otherwise.
+ */
+QVector<double> PParamDataHandler::GetValues(QString collName, QString paramName)
+{
+  QVector<double> data;
+
+  // find collection with correct name
+  int idx=-1;
+  for (int i=0; i<fCollection.size(); i++) {
+    if (fCollection[i].GetName() == collName) {
+      idx = i;
+      break;
+    }
+  }
+  if (idx == -1) { // collection not found
+    return data;
+  }
+
+  // make sure parameter name is present in collection
+  PmuppRun run = fCollection[idx].GetRun(0);
+  int idx1 = -1;
+  for (int i=0; i<run.GetNoOfParam(); i++) {
+    if (run.GetParam(i).GetName() == paramName) {
+      idx1 = i;
+      break;
+    }
+  }
+  if (idx1 == -1) { // parameter name not found
+    return data;
+  }
+
+  for (int i=0; i<fCollection[idx].GetNoOfRuns(); i++) {
+    data.push_back(fCollection[idx].GetRun(i).GetParam(idx1).GetValue());
+  }
+
+  return data;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PParamDataHandler::GetPosErr. Get the positive data error values of
+ * a parameter of a requested collection.
+ * @param collName name of the requested collection
+ * @param paramName parameter name
+ *
+ * @return positive error values of the requested parameter name of the
+ *         collection collName. Empty positive error vector otherwise.
+ */
+QVector<double> PParamDataHandler::GetPosErr(QString collName, QString paramName)
+{
+  QVector<double> data;
+
+  // find collection with correct name
+  int idx=-1;
+  for (int i=0; i<fCollection.size(); i++) {
+    if (fCollection[i].GetName() == collName) {
+      idx = i;
+      break;
+    }
+  }
+  if (idx == -1) { // collection not found
+    return data;
+  }
+
+  // make sure parameter name is present in collection
+  PmuppRun run = fCollection[idx].GetRun(0);
+  int idx1 = -1;
+  for (int i=0; i<run.GetNoOfParam(); i++) {
+    if (run.GetParam(i).GetName() == paramName) {
+      idx1 = i;
+      break;
+    }
+  }
+  if (idx1 == -1) { // parameter name not found
+    return data;
+  }
+
+  for (int i=0; i<fCollection[idx].GetNoOfRuns(); i++) {
+    data.push_back(fCollection[idx].GetRun(i).GetParam(idx1).GetPosErr());
+  }
+
+  return data;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PParamDataHandler::GetNegErr. Get the negative data error values of
+ * a parameter of a requested collection.
+ * @param collName name of the requested collection
+ * @param paramName parameter name
+ *
+ * @return negative error values of the requested parameter name of the
+ *         collection collName. Empty negative error vector otherwise.
+ */
+QVector<double> PParamDataHandler::GetNegErr(QString collName, QString paramName)
+{
+  QVector<double> data;
+
+  // find collection with correct name
+  int idx=-1;
+  for (int i=0; i<fCollection.size(); i++) {
+    if (fCollection[i].GetName() == collName) {
+      idx = i;
+      break;
+    }
+  }
+  if (idx == -1) { // collection not found
+    return data;
+  }
+
+  // make sure parameter name is present in collection
+  PmuppRun run = fCollection[idx].GetRun(0);
+  int idx1 = -1;
+  for (int i=0; i<run.GetNoOfParam(); i++) {
+    if (run.GetParam(i).GetName() == paramName) {
+      idx1 = i;
+      break;
+    }
+  }
+  if (idx1 == -1) { // parameter name not found
+    return data;
+  }
+
+  for (int i=0; i<fCollection[idx].GetNoOfRuns(); i++) {
+    data.push_back(fCollection[idx].GetRun(i).GetParam(idx1).GetNegErr());
+  }
+
+  return data;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PParamDataHandler::RemoveCollection. Remove a collection from the
+ * data handler.
+ * @param name of the collection to be removed.
+ */
+void PParamDataHandler::RemoveCollection(QString name)
+{
+  for (int i=0; i<fCollection.size(); i++) {
+    if (fCollection[i].GetName() == name) {
+      fCollection.remove(i);
+      break;
+    }
+  }
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PParamDataHandler::ReplaceCollection. Replaces a collection at index
+ * position idx.
+ * @param coll collection
+ * @param idx index of the collection to be replaced
+ */
+void PParamDataHandler::ReplaceCollection(PmuppCollection coll, int idx)
+{
+  if (idx >= fCollection.size())
+    return;
+
+  fCollection.replace(idx, coll);
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PParamDataHandler::Dump. Dumps the collection onto stdout
+ */
+void PParamDataHandler::Dump()
+{
+  PmuppRun run;
+  PmuppParam param;
+
+  for (int i=0; i<fCollection.size(); i++) {
+    std::cout << "debug> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-" << std::endl;
+    std::cout << "debug> collection name: " << fCollection[i].GetName().toLatin1().data() << std::endl;
+    std::cout << "debug> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-" << std::endl;
+    for (int j=0; j<fCollection[i].GetNoOfRuns(); j++) {
+      std::cout << "debug> ----------------------------------" << std::endl;
+      run = fCollection[i].GetRun(j);
+      std::cout << "debug>> run number: " << run.GetNumber() << std::endl;
+      std::cout << "debug>> run name  : " << run.GetName().toLatin1().data() << std::endl;
+      std::cout << "debug>> ---------------------------------" << std::endl;
+      for (int k=0; k<run.GetNoOfParam(); k++) {
+        param = run.GetParam(k);
+        std::cout << "debug>>> " << param.GetName().toLatin1().data() << ": " << param.GetValue() << " -+ " << param.GetNegErr() << " / " << param.GetPosErr() << std::endl;
+      }
+    }
+  }
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PParamDataHandler::readFromStdOut
+ */
+void PParamDataHandler::readFromStdOut()
+{
+  qInfo() << fProc->readAllStandardOutput();
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PParamDataHandler::readFromStdErr
+ */
+void PParamDataHandler::readFromStdErr()
+{
+  qInfo() << fProc->readAllStandardError();
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PParamDataHandler::processDone
+ * @param exitCode
+ * @param exitStatus
+ */
+void PParamDataHandler::processDone(int exitCode, QProcess::ExitStatus exitStatus)
+{
+  qInfo() << "in processDone()";
+  if ((exitStatus == QProcess::CrashExit) && (exitCode != 0)) {
+    qInfo() << "**ERROR** processDone: exitCode = " << exitCode << Qt::endl;
+  }
+}
diff --git a/src/musredit_qt6/mupp/Pmupp.h b/src/musredit_qt6/mupp/Pmupp.h
new file mode 100644
index 00000000..69a9efcf
--- /dev/null
+++ b/src/musredit_qt6/mupp/Pmupp.h
@@ -0,0 +1,171 @@
+/***************************************************************************
+
+  Pmupp.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PMUPP_H_
+#define _PMUPP_H_
+
+#include <QObject>
+#include <QString>
+#include <QVector>
+#include <QStringList>
+#include <QProcess>
+
+#define MUPP_UNDEF 1.0e99
+
+//----------------------------------------------------------------------------
+/**
+ * <p>The PmuppParam class. It handles a single parameter: name, value,
+ * positive- and negative error.
+ */
+class PmuppParam {
+  public:
+    PmuppParam();
+    PmuppParam(QString name, double param, double posErr);
+    PmuppParam(QString name, double param, double posErr, double negErr);
+
+    void ResetParam();
+    void SetParam(QString name, double param, double posErr);
+    void SetParam(QString name, double param, double posErr, double negErr);
+    void SetName(QString name) { fName = name; }
+    void SetValue(double dval) { fValue = dval; }
+    void SetPosErr(double dval) { fPosErr = dval; }
+    void SetNegErr(double dval) { fNegErr = dval; }
+
+    QString GetName() { return fName; }
+    double GetValue() { return fValue; }
+    double GetPosErr() { return fPosErr; }
+    double GetNegErr() { return fNegErr; }
+
+  private:
+    QString fName; ///< parameter name
+    double fValue; ///< parameter value
+    double fPosErr; ///< positive error of the parameter
+    double fNegErr; ///< negative error of the parameter
+};
+
+//----------------------------------------------------------------------------
+/**
+ * <p>The PmuppRun class. Contains all the parameters of a single run.
+ */
+class PmuppRun {
+  public:
+    PmuppRun() { fNumber = -1; fName=""; fParam.clear(); }
+    ~PmuppRun() { fNumber = -1; fName=""; fParam.clear(); }
+
+    void Clear() { fNumber = -1; fName=""; fParam.clear(); }
+    void SetName(QString name) { fName = name; }
+    void SetNumber(int ival) { fNumber = ival; }
+    void AddParam(PmuppParam param) { fParam.push_back(param); }
+
+    int GetNumber() { return fNumber; }
+    QString GetName() { return fName; }
+    int GetNoOfParam() { return fParam.size(); }
+    PmuppParam GetParam(unsigned int idx);
+
+  private:
+    int fNumber; ///< run number
+    QString fName; ///< name of the run
+    QVector<PmuppParam> fParam; ///< parameters of the run
+};
+
+//----------------------------------------------------------------------------
+/**
+ * <p>The PmuppCollection class. Is collecting a number of runs. Typically
+ * something like a full temperature scan, an energy scan, etc.
+ */
+class PmuppCollection {
+  public:
+    PmuppCollection() { fPathName=""; fName = ""; fRun.clear(); }
+
+    void SetPathName(QString pathName) { fPathName = pathName; }
+    void SetName (QString name) { fName = name; }
+    void AddRun(PmuppRun run) { fRun.push_back(run); }
+
+    QString GetPathName() { return fPathName; }
+    QString GetName() { return fName; }
+    int GetNoOfRuns() { return fRun.size(); }
+    PmuppRun GetRun(unsigned int idx);
+
+  private:
+    QString fPathName; ///< path-name of the collection
+    QString fName; ///< name of the collection
+    QVector<PmuppRun> fRun; ///< all the runs in the collection
+};
+
+//----------------------------------------------------------------------------
+/**
+ * <p>The PParamDataHandler class. This class handles all the collections
+ * loaded.
+ */
+class PParamDataHandler : public QObject {
+  Q_OBJECT
+
+  public:
+    PParamDataHandler() {}
+
+    int GetNoOfCollections() { return fCollection.size(); }
+    void NewCollection(const QString name);
+
+    bool ReadParamFile(const QStringList fln, QString &errorMsg);
+    PmuppCollection ReadDbFile(const QString fln, bool &valid, QString &errorMsg);
+    PmuppCollection ReadColumnParamFile(const QString fln, bool &valid, QString &errorMsg);
+
+    PmuppCollection GetCollection(const int idx, bool &valid);
+    PmuppCollection GetCollection(const QString name, bool &valid);
+    PmuppCollection *GetCollection(const int idx);
+    PmuppCollection *GetCollection(const QString name);
+    int GetCollectionIndex(const QString name);
+    QString GetCollectionName(const int idx);
+
+    QVector<double> GetValues(QString collName, QString paramName);
+    QVector<double> GetPosErr(QString collName, QString paramName);
+    QVector<double> GetNegErr(QString collName, QString paramName);
+
+    void RemoveCollection(QString name);
+    void ReplaceCollection(PmuppCollection coll, int idx);
+
+    void Dump();
+
+  signals:
+    void newData();
+
+  private:
+    QProcess *fProc; ///< this will be needed if msr2data needs to be called
+    QVector<PmuppCollection> fCollection; ///< all the collections handeled
+
+    bool analyzeFileList(const QStringList &fln, QString &collectionName,
+                         QStringList &arg, QString &workDir, QString &errorMsg);
+
+  private slots:
+    void readFromStdOut();
+    void readFromStdErr();
+    void processDone(int, QProcess::ExitStatus);
+};
+
+#endif // _PMUPP_H_
diff --git a/src/musredit_qt6/mupp/PmuppAdmin.cpp b/src/musredit_qt6/mupp/PmuppAdmin.cpp
new file mode 100644
index 00000000..76dcbdfb
--- /dev/null
+++ b/src/musredit_qt6/mupp/PmuppAdmin.cpp
@@ -0,0 +1,605 @@
+/****************************************************************************
+
+  PmuppAdmin.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2017 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <cstdlib>
+#include <iostream>
+
+#include <QMessageBox>
+#include <QString>
+#include <QStringView>
+#include <QFile>
+#include <QTextStream>
+#include <QVector>
+#include <QDir>
+#include <QProcessEnvironment>
+#include <QSysInfo>
+
+#include <QtDebug>
+
+#include "PmuppAdmin.h"
+
+//--------------------------------------------------------------------------
+// implementation of PmuppColor class
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppColor::PmuppColor. Ctor
+ */
+PmuppColor::PmuppColor()
+{
+  fName  = "UnDef";
+  fRed   = -1;
+  fGreen = -1;
+  fBlue  = -1;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppColor::setRGB. set RGB value
+ * @param r red (0..255)
+ * @param g green (0..255)
+ * @param b blue (0..255)
+ */
+void PmuppColor::setRGB(const int r, const int g, const int b)
+{
+  if ((r>=0) && (r<=255))
+    fRed = r;
+  if ((g>=0) && (g<=255))
+    fGreen = g;
+  if ((b>=0) && (b<=255))
+    fBlue = b;
+}
+
+//--------------------------------------------------------------------------
+// implementation of PmuppAdminXMLParser class
+//--------------------------------------------------------------------------
+/**
+ * <p>XML Parser class for the mupp administration file.
+ *
+ * \param admin pointer to an admin class instance.
+ */
+PmuppAdminXMLParser::PmuppAdminXMLParser(const QString& fln, PmuppAdmin *admin) : fAdmin(admin)
+{
+  fValid = false;
+  fKeyWord = eEmpty;
+
+  QFile file(fln);
+  if (!file.open(QFile::ReadOnly | QFile::Text)) {
+    // warning and create default - STILL MISSING
+  }
+
+  fValid = parse(&file);
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>parse the mupp startup xml-file.
+ *
+ * \param device QFile object of the mupp startup xml-file
+ *
+ * @return true on success, false otherwise
+ */
+bool PmuppAdminXMLParser::parse(QIODevice *device)
+{
+  fXml.setDevice(device);
+
+  bool expectChars = false;
+  while (!fXml.atEnd()) {
+    fXml.readNext();
+    if (fXml.isStartDocument()) {
+      startDocument();
+    } else if (fXml.isStartElement()) {
+      startElement();
+      expectChars = true;
+    } else if (fXml.isCharacters() && expectChars) {
+      characters();
+    } else if (fXml.isEndElement()) {
+      endElement();
+      expectChars = false;
+    } else if (fXml.isEndDocument()) {
+      endDocument();
+    }
+  }
+  if (fXml.hasError()) {
+    QString msg;
+    msg = QString("%1 Line %2, column %3").arg(fXml.errorString()).arg(fXml.lineNumber()).arg(fXml.columnNumber());
+    QMessageBox::critical(0, "**ERROR**", msg, QMessageBox::Ok, QMessageBox::NoButton);
+    return false;
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Routine called at the beginning of the XML parsing process.
+ */
+bool PmuppAdminXMLParser::startDocument()
+{
+  // nothing to be done here for now
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Routine called when a new XML tag is found. Here it is used
+ * to set a tag for filtering afterwards the content.
+ */
+bool PmuppAdminXMLParser::startElement()
+{
+  QString qName = fXml.name().toString();
+
+  if (qName == "path_file_name") {
+    fKeyWord = eRecentFile;
+  } else if (qName == "dark_theme") {
+    fKeyWord = eDarkTheme;
+  } else if (qName == "marker") {
+    fKeyWord = eMarker;
+  } else if (qName == "color") {
+    fKeyWord = eColor;
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Routine called when the end XML tag is found. It is used to
+ * put the filtering tag to 'empty'. It also resets the fFunc flag in case
+ * the entry was a theory function.
+ */
+bool PmuppAdminXMLParser::endElement()
+{
+  fKeyWord = eEmpty;
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>This routine delivers the content of an XML tag. It fills the
+ * content into the load data structure.
+ */
+bool PmuppAdminXMLParser::characters()
+{
+  QString str = fXml.text().toString();
+  if (str.isEmpty())
+    return true;
+
+  bool ok;
+  int  ival, r, g, b;
+  double dval;
+  QString name("");
+  QStringList tok;
+
+  switch (fKeyWord) {
+    case eRecentFile:
+      fAdmin->addRecentFile(QString(str.toLatin1()).trimmed());
+      break;
+    case eDarkTheme:
+      if ((str == "yes") || (str == "1") || (str == "true"))
+        fAdmin->setTheme(true);
+      else
+        fAdmin->setTheme(false);
+      break;
+    case eMarker:
+      tok = str.split(",", Qt::SkipEmptyParts);
+
+      if ((tok.count() != 1) && (tok.count() != 2)) {
+        return false;
+      }
+
+      ival = tok[0].toInt(&ok);
+      if (!ok)
+        return false;
+
+      dval = 1.0;
+      if (tok.count() == 2) {
+        dval = tok[1].toDouble(&ok);
+        if (!ok)
+          return false;
+      }
+      fAdmin->setMarker(ival, dval);
+      break;
+    case eColor:
+      tok = str.split(",", Qt::SkipEmptyParts);
+
+      if ((tok.count() != 3) && (tok.count() != 4)) {
+        return false;
+      }
+      ival = tok[0].toInt(&ok);
+      if (!ok)
+        return false;
+      r = ival;
+      ival = tok[1].toInt(&ok);
+      if (!ok)
+        return false;
+      g = ival;
+      ival = tok[2].toInt(&ok);
+      if (!ok)
+        return false;
+      b = ival;
+      if (tok.count() == 4)
+        name = tok[3];
+      fAdmin->setColor(r, g, b, name);
+      break;
+    default:
+      break;
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Called at the end of the XML parse process. It checks if default paths
+ * contain system variables, and if so expand them for the further use.
+ */
+bool PmuppAdminXMLParser::endDocument()
+{
+  return true;
+}
+
+//--------------------------------------------------------------------------
+// implementation of PmuppAdmin class
+//--------------------------------------------------------------------------
+/**
+ * <p>Initializes that PmuppAdmin object, and calls the XML parser which feeds
+ * the object variables.
+ */
+PmuppAdmin::PmuppAdmin() : QObject(), fDarkTheme(false)
+{
+  // XML Parser part
+  // 1st: check local directory
+  QString path = QString("./");
+  QString fln = QString("mupp_startup.xml");
+  QString pathFln = path + fln;
+  QProcessEnvironment procEnv = QProcessEnvironment::systemEnvironment();
+  if (!QFile::exists(pathFln)) {
+    // 2nd: check $HOME/.musrfit/mupp/mupp_startup.xml
+    path = procEnv.value("HOME", "");
+    pathFln = path + "/.musrfit/mupp/" + fln;
+    if (!QFile::exists(pathFln)) {
+      // 3rd: check $MUSRFITPATH/mupp_startup.xml
+      path = procEnv.value("MUSRFITPATH", "");
+      pathFln = path + "/" + fln;
+      if (!QFile::exists(pathFln)) {
+        // 4th: check $ROOTSYS/bin/mupp_startup.xml
+        path = procEnv.value("ROOTSYS", "");
+        pathFln = path + "/bin/" + fln;
+        if (!QFile::exists(pathFln)) {
+          // 5th: not found anywhere hence create it
+          path = procEnv.value("HOME", "");
+          pathFln = path + "/.musrfit/mupp/" + fln;
+          createMuppStartupFile();
+        }
+      }
+    }
+  }
+
+  if (QFile::exists(pathFln)) { // administration file present    
+    PmuppAdminXMLParser handler(pathFln, this);
+    if (!handler.isValid()) {
+      QMessageBox::critical(0, "**ERROR**",
+                            "Error parsing mupp_startup.xml settings file.\nProbably a few things will not work porperly.\nPlease fix this first.",
+                            QMessageBox::Ok, QMessageBox::NoButton);
+      return;
+    }
+  } else {
+    QMessageBox::critical(0, "**ERROR**",
+                          "Couldn't find the mupp_startup.xml settings file.\nProbably a few things will not work porperly.\nPlease fix this first.",
+                          QMessageBox::Ok, QMessageBox::NoButton);
+    return;
+  }
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Destructor
+ */
+PmuppAdmin::~PmuppAdmin()
+{
+  saveRecentFiles();
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Add recent path-file name to the internal ring-buffer.
+ *
+ * \param str recent path-file name to be added
+ */
+void PmuppAdmin::addRecentFile(const QString str)
+{
+  // check if file name is not already present
+  for (int i=0; i<fRecentFile.size(); i++) {
+    if (str == fRecentFile[i])
+      return;
+  }
+
+  fRecentFile.push_front(str);
+  if (fRecentFile.size() > MAX_RECENT_FILES)
+    fRecentFile.resize(MAX_RECENT_FILES);
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppAdmin::getRecentFile. Get a file from the recent files with
+ * index idx.
+ * @param idx
+ *
+ * @return return the recent file with index idx if present, otherwise return
+ * an empty string.
+ */
+QString PmuppAdmin::getRecentFile(int idx)
+{
+  QString str("");
+
+  if ((idx >= 0) && (idx < fRecentFile.size()))
+    str = fRecentFile[idx];
+
+  return str;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppAdmin::getMarker. Get the marker with index idx.
+ * @param idx marker index
+ *
+ * @return requested marker
+ */
+PmuppMarker PmuppAdmin::getMarker(int idx) {
+  PmuppMarker marker;
+
+  if (idx >= fMarker.size())
+    return marker;
+
+  return fMarker[idx];
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppAdmin::getColor. Get rgb color codes of name
+ * @param name of the requeset color.
+ * @param r red value (0..255)
+ * @param g green value (0..255)
+ * @param b blue value (0..255
+ */
+void PmuppAdmin::getColor(QString name, int &r, int &g, int &b)
+{
+  int idx=-1;
+  for (int i=0; i<fColor.size(); i++) {
+    if (fColor[i].getName() == name) {
+      idx = i;
+      break;
+    }
+  }
+
+  if (idx == -1) {
+    r = -1;
+    g = -1;
+    b = -1;
+  } else {
+    fColor[idx].getRGB(r, g, b);
+  }
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppAdmin::getColor. Get color codes of color at index idx
+ * @param idx requested color index
+ * @param r red value (0..255)
+ * @param g green value (0..255)
+ * @param b blue value (0..255)
+ */
+void PmuppAdmin::getColor(int idx, int &r, int &g, int &b)
+{
+  if ((idx<=0) || (idx>fColor.size())) {
+    r = -1;
+    g = -1;
+    b = -1;
+  } else {
+    fColor[idx].getRGB(r, g, b);
+  }
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppAdmin::setMaker. Set a marker
+ * @param marker marker code
+ * @param size marker size
+ */
+void PmuppAdmin::setMarker(int marker, double size)
+{
+  PmuppMarker markerObj;
+
+  // make sure marker is in proper range
+  if ((marker<1) || (marker>49)) {
+    QMessageBox::warning(0, "WARNING", QString("Found Marker (%1) not in the expected range.\nWill ignore it.").arg(marker));
+    return;
+  }
+  markerObj.setMarker(marker);
+  markerObj.setMarkerSize(size);
+
+  fMarker.push_back(markerObj);
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppAdmin::setColor. Set a color
+ * @param r red value (0..255)
+ * @param g green value (0..255)
+ * @param b blue value (0..255)
+ * @param name color name
+ */
+void PmuppAdmin::setColor(int r, int g, int b, QString name)
+{
+  if (((r<0) || (r>255)) ||
+      ((g<0) || (g>255)) ||
+      ((b<0) || (b>255))) {
+    QMessageBox::warning(0, "WARNING", QString("Found Color (%1,%2,%3) not in the expected range.\nWill ignore it.").arg(r).arg(g).arg(b));
+    return;
+  }
+
+  PmuppColor color;
+  color.setName(name);
+  color.setRGB(r,g,b);
+
+  fColor.push_back(color);
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Merges the recent file ring buffer into mupp_startup.xml and saves it.
+ * If a local copy is present it will be saved there, otherwise the master file
+ * will be used.
+ */
+void PmuppAdmin::saveRecentFiles()
+{
+  // check if mupp_startup.xml is present in the current directory, and if yes, use this file to
+  // save the recent file names otherwise use the "master" mupp_startup.xml
+
+  QString str("");
+  QString fln = QString("./mupp_startup.xml");
+  if (!QFile::exists(fln)) {
+    QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+    fln = QString("%1/.musrfit/mupp/mupp_startup.xml").arg(env.value("HOME"));
+  }
+
+  if (QFile::exists(fln)) { // administration file present
+    QVector<QString> data;
+    QFile file(fln);
+    if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+      std::cerr << std::endl << ">> PmuppAdmin::saveRecentFile: **ERROR** Cannot open " << fln.toLatin1().data() << " for reading." << std::endl;
+      return;
+    }
+    QTextStream fin(&file);
+    while (!fin.atEnd()) {
+      data.push_back(fin.readLine());
+    }
+    file.close();
+
+    // remove <path_file_name> from data
+    for (QVector<QString>::iterator it = data.begin(); it != data.end(); ++it) {
+      if (it->contains("<path_file_name>")) {
+        it = data.erase(it);
+        --it;
+      }
+    }
+
+    // add recent files
+    int i;
+    for (i=0; i<data.size(); i++) {
+      if (data[i].contains("<recent_files>"))
+        break;
+    }
+
+    if (i == data.size()) {
+      std::cerr << std::endl << ">> PmuppAdmin::saveRecentFile: **ERROR** " << fln.toLatin1().data() << " seems to be corrupt." << std::endl;
+      return;
+    }
+    i++;
+    for (int j=0; j<fRecentFile.size(); j++) {
+      str = "    <path_file_name>" + fRecentFile[j] + "</path_file_name>";
+      data.insert(i++, str);
+    }
+
+    if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
+      std::cerr << std::endl << ">> PmuppAdmin::saveRecentFile: **ERROR** Cannot open " << fln.toLatin1().data() << " for reading." << std::endl;
+      return;
+    }
+    fin.setDevice(&file);
+    for (int i=0; i<data.size(); i++) {
+      fin << data[i] << Qt::endl;
+    }
+    file.close();
+  } else {
+    QString msg("Failed to write mupp_startup.xml. Neither a local nor a global copy found.");
+    QMessageBox::warning(0, "WARNING", msg, QMessageBox::Ok, QMessageBox::NoButton);
+  }
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppAdmin::createMuppStartupFile. Create a default mupp_startup.xml
+ * file if not present.
+ */
+void PmuppAdmin::createMuppStartupFile()
+{
+  // get $HOME
+  QProcessEnvironment procEnv = QProcessEnvironment::systemEnvironment();
+  QString pathName = procEnv.value("HOME", "");
+  pathName += "/.musrfit/mupp";
+
+  // check if the directory $HOME/.musrfit/mupp exists if not create it
+  QDir dir(pathName);
+  if (!dir.exists()) {
+    // directory $HOME/.musrfit/mupp does not exist hence create it
+    dir.mkpath(pathName);
+  }
+
+  // create default mupp_startup.xml file in $HOME/.musrfit/mupp
+  pathName += "/mupp_startup.xml";
+
+  // get the default mupp_startup.xml.in from the internal resources
+  QFile fres(":/mupp_startup.xml.in");
+  if (!fres.exists()) {
+    QString msg = QString("Neither couldn't find nor create mupp_startup.xml. Things are likely not to work.");
+    QMessageBox::critical(0, "ERROR", msg);
+    return;
+  }
+
+  if (!fres.open(QIODevice::ReadOnly | QIODevice::Text)) {
+    QString msg = QString("Couldn't open internal resource file mupp_startup.xml.in. Things are likely not to work.");
+    QMessageBox::critical(0, "ERROR", msg);
+    return;
+  }
+  // text stream for fres
+  QTextStream fin(&fres);
+
+  // mupp_startup.xml default file
+  QFile file(pathName);
+
+  if (!file.open(QIODevice::WriteOnly | QIODevice::Text))
+    return;
+
+  // text stream for file
+  QTextStream fout(&file);
+
+  QString line;
+  while (!fin.atEnd()) {
+    line = fin.readLine();
+    fout << line << Qt::endl;
+  }
+
+  file.close();
+  fres.close();
+}
+
+//--------------------------------------------------------------------------
+// END
+//--------------------------------------------------------------------------
diff --git a/src/musredit_qt6/mupp/PmuppAdmin.h b/src/musredit_qt6/mupp/PmuppAdmin.h
new file mode 100644
index 00000000..2fc04101
--- /dev/null
+++ b/src/musredit_qt6/mupp/PmuppAdmin.h
@@ -0,0 +1,167 @@
+/****************************************************************************
+
+  PmuppAdmin.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2017 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PMUPPADMIN_H_
+#define _PMUPPADMIN_H_
+
+#include <QString>
+#include <QVector>
+#include <QMap>
+#include <QPixmap>
+#include <QXmlStreamReader>
+
+#include "mupp.h"
+
+class PmuppAdmin;
+
+//---------------------------------------------------------------------------
+/**
+ * @brief The PmuppColor class. Contains to colors read from the xml-startup
+ * which are used for the plotted data.
+ */
+class PmuppColor {
+  public:
+    PmuppColor();
+    virtual ~PmuppColor() {}
+
+    QString getName() { return fName; }
+    void getRGB(int &r, int &g, int &b) { r=fRed; g=fGreen; b=fBlue; }
+
+    void setName(const QString name) { fName = name; }
+    void setRGB(const int r, const int g, const int b);
+
+  private:
+    QString fName;    
+    int fRed;
+    int fGreen;
+    int fBlue;
+};
+
+//---------------------------------------------------------------------------
+/**
+ * @brief The PmuppMarker class. List of the markers used in the plotter. Read
+ * from the xml-startup.
+ */
+class PmuppMarker {
+  public:
+    PmuppMarker() { fMarker = 20; fMarkerSize = 1.0; }
+    PmuppMarker(int marker, double size) : fMarker(marker), fMarkerSize(size) {}
+    virtual ~PmuppMarker() {}
+
+    void getMarker(int &marker, double &size) { marker = fMarker; size = fMarkerSize; }
+    int getMarker() { return fMarker; }
+    double getMarkerSize() { return fMarkerSize; }
+
+    void setMarker(int marker) { fMarker = marker; }
+    void setMarkerSize(double size) { fMarkerSize = size; }
+
+  private:
+    int fMarker;
+    double fMarkerSize;
+};
+
+//---------------------------------------------------------------------------
+/**
+ * PAdminXMLParser is an XML parser class used to handle the mupp startup
+ * XML-file called <tt>mupp_startup.xml</tt>. This startup file contains
+ * necessary informations about executable pathes, online help informations,
+ * default font sizes, etc.
+ */
+class PmuppAdminXMLParser
+{
+  public:
+    PmuppAdminXMLParser(const QString &fln, PmuppAdmin*);
+    virtual ~PmuppAdminXMLParser() {}
+
+    virtual bool isValid() { return fValid; }
+
+  private:
+    enum EAdminKeyWords {eEmpty, eRecentFile, eDarkTheme, eMarker, eColor};
+
+    bool parse(QIODevice *device);
+    bool startDocument();
+    bool startElement();
+    bool endElement();
+    bool characters();
+    bool endDocument();
+
+    QXmlStreamReader fXml;     ///< xml stream reader object
+    bool             fValid;   ///< flag showing if XML read has been successful
+    EAdminKeyWords   fKeyWord; ///< key word tag to know how to handle the content
+    PmuppAdmin       *fAdmin;  ///< a pointer to the main administration class object
+};
+
+//---------------------------------------------------------------------------
+/**
+ * The PMuppAdmin class is handling the informations contained in the XML startup file,
+ * <tt>mupp_startup.xml</tt>. This startup file contains
+ * necessary informations like marker style, marker color, etc. The XML parsing is done
+ * with the help of the PmuppAdminXMLParser class.
+ */
+class PmuppAdmin : public QObject
+{
+  public:
+    PmuppAdmin();
+    virtual ~PmuppAdmin();
+
+    void    addRecentFile(const QString str);
+    int     getNumRecentFiles() { return fRecentFile.size(); }
+    QString getRecentFile(int idx);
+
+
+
+    int getNoOfMarkers() { return fMarker.size(); }
+    QVector<PmuppMarker> getMarkers() { return fMarker; }
+    PmuppMarker getMarker(int idx);
+
+    int getNoOfColors() { return fColor.size(); }
+    QVector<PmuppColor> getColors() { return fColor; }
+    void getColor(QString name, int &r, int &g, int &b);
+    void getColor(int idx, int &r, int &g, int &b);
+
+    bool isDarkTheme() { return fDarkTheme; }
+
+    void setTheme(bool theme) { fDarkTheme = theme; }
+    void setMarker(int marker, double size);
+    void setColor(int r, int g, int b, QString name="");
+
+  private:
+    friend class PmuppAdminXMLParser;
+
+    QVector<QString> fRecentFile; ///< keep vector of recent path-file names
+
+    bool fDarkTheme;
+    QVector<PmuppMarker> fMarker;
+    QVector<PmuppColor> fColor;
+
+    void saveRecentFiles(); ///< save recent file list
+    void createMuppStartupFile(); ///< create default mupp_startup.xml
+};
+
+#endif // _PMUPPADMIN_H_
diff --git a/src/musredit_qt6/mupp/PmuppGui.cpp b/src/musredit_qt6/mupp/PmuppGui.cpp
new file mode 100644
index 00000000..acc65d55
--- /dev/null
+++ b/src/musredit_qt6/mupp/PmuppGui.cpp
@@ -0,0 +1,2653 @@
+/***************************************************************************
+
+  PmuppGui.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/msg.h>
+#include <sys/stat.h>
+
+#include <cmath>
+#include <iostream>
+
+#include <QApplication>
+#include <QToolBar>
+#include <QMenuBar>
+#include <QMessageBox>
+#include <QRect>
+#include <QSpacerItem>
+#include <QFrame>
+#include <QStringList>
+#include <QFileDialog>
+#include <QListWidgetItem>
+#include <QInputDialog>
+#include <QFile>
+#include <QTextStream>
+#include <QDateTime>
+#include <QKeyEvent>
+#include <QProcessEnvironment>
+#include <QDir>
+#include <QTextStream>
+#include <QDateTime>
+
+#include <QtDebug>
+
+#include "mupp_version.h"
+#include "PmuppGui.h"
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * @brief PmuppXY::init the xy object
+ */
+void PmuppXY::init()
+{
+  fCollectionTag = -1;
+  fXlabel = "";
+  fYlabel.clear();
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppXY::setYlabel. Set the y-label
+ * @param idx index of the y-label
+ * @param str name of the y-label
+ */
+void PmuppXY::setYlabel(int idx, QString str)
+{
+  if (idx >= fYlabel.size())
+    return;
+
+  fYlabel[idx] = str;
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppXY::removeYlabel. Remove the y-label at position idx.
+ * @param idx index of the y-label to be removed.
+ */
+void PmuppXY::removeYlabel(int idx)
+{
+  if (idx >= fYlabel.size())
+    return;
+
+  fYlabel.remove(idx);
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppXY::removeYlabel. Remove the y-label with name str.
+ * @param str name of the y-label to be removed.
+ */
+void PmuppXY::removeYlabel(QString str)
+{
+  for (int i=0; i<fYlabel.size(); i++) {
+    if (fYlabel[i] == str) {
+      fYlabel.remove(i);
+      return;
+    }
+  }
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppXY::getYlabel. Get the y-label with index idx
+ * @param idx index of the requested y-label.
+ *
+ * @return requested y-label if found, empty string otherwise.
+ */
+QString PmuppXY::getYlabel(int idx)
+{
+  if (idx >= fYlabel.size())
+    return QString("");
+
+  return fYlabel[idx];
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppXY::getXlabelIdx. Get the x-label index.
+ * @return x-label index if found, otherwise -1.
+ */
+int PmuppXY::getXlabelIdx()
+{
+  QString str = fXlabel;
+
+  // remove trailing '-)'
+  int idx = fXlabel.lastIndexOf("-)");
+  if (idx == -1)
+    return -1;
+  str.remove(idx, str.length()-idx);
+
+  // remove everything up to '(-'
+  idx = fXlabel.indexOf("(-");
+  if (idx == -1)
+    return -1;
+  idx += 2;
+  str.remove(0, idx);
+
+  bool ok;
+  idx = str.toInt(&ok);
+  if (!ok)
+    return -1;
+
+  return idx;
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppXY::getYlabelIdx. Get y-label index of index idx.
+ * @param idx index of the y-label.
+ * @return y-label index on success, -1 otherwise.
+ */
+int PmuppXY::getYlabelIdx(int idx)
+{
+  if (idx >= fYlabel.size())
+    return -1;
+
+  QString str = fYlabel[idx];
+
+  // remove trailing '-)'
+  int iidx = fXlabel.lastIndexOf("-)");
+  if (iidx == -1)
+    return -1;
+  str.remove(iidx, str.length()-iidx);
+
+  // remove everything up to '(-'
+  iidx = fXlabel.indexOf("(-");
+  if (iidx == -1)
+    return -1;
+  iidx += 2;
+  str.remove(0, iidx);
+
+  bool ok;
+  iidx = str.toInt(&ok);
+  if (!ok)
+    return -1;
+
+  return iidx;
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PVarErrorDialog::PVarErrorDialog. Ctor
+ * @param errMsg error message(s) to be displayed
+ */
+PVarErrorDialog::PVarErrorDialog(QString errMsg)
+{
+  int length = errMsg.length();
+
+  fErrMsg = new QPlainTextEdit(errMsg);
+  fOK = new QPushButton("Done", this);
+
+  fErrMsg->setReadOnly(true);
+
+  QVBoxLayout *layout = new QVBoxLayout;
+  layout->addWidget(fErrMsg);
+  layout->addWidget(fOK);
+
+  connect( fOK, SIGNAL( clicked() ), this, SLOT( accept() ));
+
+  if (length > 0) {
+    int noBreaks = errMsg.count('\n');
+    int width = 20*length / noBreaks;
+    if (width < 300)
+      width = 300;
+    if (width > 900)
+      width = 900;
+    setMinimumWidth(width);
+  }
+  setLayout(layout);
+  show();
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * <p>Constructor
+ *
+ * \param fln file names to be loaded
+ * \param parent pointer to the parent object
+ * \param f qt windows flags
+ */
+PmuppGui::PmuppGui(QStringList fln)
+{
+  QDateTime dt = QDateTime::currentDateTime();
+  fDatime = dt.toSecsSinceEpoch();
+  fMuppInstance = -1;
+
+  fMuppPlot = nullptr;
+  fNormalizeAction = nullptr;
+
+  fNormalize = false;
+
+  fVarDlg = nullptr;
+
+  fMacroPath = QString("./");
+  fMacroName = QString("");
+
+  readCmdHistory();
+
+  fAdmin = new PmuppAdmin();
+
+  fParamDataHandler = new PParamDataHandler();
+  bool dataAtStartup = false;
+  if (fln.size() > 0) {
+    if (fln[0].contains(".msr")) {
+      // get collection Name
+      QString collName = QString("collName0");
+      fParamDataHandler->NewCollection(collName);
+    }
+    QString errorMsg("");
+    if (!fParamDataHandler->ReadParamFile(fln, errorMsg)) {
+      QMessageBox::critical(this, "ERROR", errorMsg);
+    } else {
+      dataAtStartup = true; // delay to deal with the data sets until the GUI is ready to do so
+    }
+  }
+
+  getTheme();
+
+  QString iconName("");
+  if (fDarkTheme)
+    iconName = QString(":/icons/mupp-dark.svg");
+  else
+    iconName = QString(":/icons/mupp-plain.svg");
+  setWindowIcon( QIcon( QPixmap(iconName) ) );
+
+  // setup menus
+  setupFileActions();
+  setupToolActions();
+  setupHelpActions();
+
+  // create central widget
+  fCentralWidget = new QWidget(this);
+
+  // setup widgets
+  fBoxLayout_Main = new QBoxLayout(QBoxLayout::TopToBottom);
+  fBoxLayout_Main->setGeometry(QRect(10, 40, 600, 500));
+
+  fBoxLayout_Top = new QBoxLayout(QBoxLayout::LeftToRight);
+  fGridLayout_Left = new QGridLayout();
+  fGridLayout_Right = new QGridLayout();
+  fBoxLayout_Cmd = new QBoxLayout(QBoxLayout::LeftToRight);
+
+  // label for the collection/parameter list widgets
+  fColLabel = new QLabel(this);
+  fColLabel->setText("Collection -> Parameter");
+  fColLabel->setMaximumHeight(15);
+
+  // central widget for the collection/parameter list widgets
+  fColParamSplitter = new QSplitter(Qt::Horizontal, this);
+  fColParamSplitter->setMinimumSize(550,330);
+
+  fColList = new QListWidget(this);
+  fColList->setSelectionMode(QAbstractItemView::ExtendedSelection);
+
+  fParamList = new QListWidget(this);
+  // the next two lines enable drag and drop facility (drag)
+  fParamList->setSelectionMode(QAbstractItemView::SingleSelection);
+  fParamList->setDragEnabled(true);
+
+  fColParamSplitter->addWidget(fColList);
+  fColParamSplitter->addWidget(fParamList);
+
+  fRemoveCollection = new QPushButton("Remove Collection", this);
+  fRefreshCollection = new QPushButton("Refresh Collection", this);
+
+  fGridLayout_Left->addWidget(fColLabel, 1, 1, 1, 2);
+  fGridLayout_Left->addWidget(fColParamSplitter, 2, 1, 1, 2);
+  fGridLayout_Left->addWidget(fRemoveCollection, 3, 1);
+  fGridLayout_Left->addWidget(fRefreshCollection, 3, 2);
+
+  // X-axis
+  fXaxisLabel = new QLabel("x-axis");
+  fViewX = new QListWidget(this);
+  // the next two lines enable drag and drop facility (copy drop)
+  fViewX->viewport()->setAcceptDrops(true);
+  fViewX->setDropIndicatorShown(true);
+
+  fAddX = new QPushButton("add X", this);
+  fRemoveX = new QPushButton("remove X", this);
+
+  // Y-axis
+  fYaxisLabel = new QLabel("y-axis");
+  fViewY = new QListWidget(this);
+  // the next two lines enable drag and drop facility (copy drop)
+  fViewY->viewport()->setAcceptDrops(true);
+  fViewY->setDropIndicatorShown(true);
+
+  fAddY = new QPushButton("add Y", this);
+  fRemoveY = new QPushButton("remove Y", this);
+
+  // 2 column button's for the right grid
+  fAddDitto = new QPushButton("Add Ditto", this);
+  fPlot = new QPushButton("Plot", this);
+
+  fGridLayout_Right->addWidget(fXaxisLabel, 1, 1);
+  fGridLayout_Right->addWidget(fYaxisLabel, 1, 2);
+  fGridLayout_Right->addWidget(fViewX, 2, 1);
+  fGridLayout_Right->addWidget(fViewY, 2, 2);
+  fGridLayout_Right->addWidget(fAddX, 3, 1);
+  fGridLayout_Right->addWidget(fAddY, 3, 2);
+  fGridLayout_Right->addWidget(fRemoveX, 4, 1);
+  fGridLayout_Right->addWidget(fRemoveY, 4, 2);
+  fGridLayout_Right->addWidget(fAddDitto, 5, 1, 1, 2);
+  fGridLayout_Right->addWidget(fPlot, 6, 1, 1, 2);
+
+  fBoxLayout_Top->addLayout(fGridLayout_Left);
+  fBoxLayout_Top->addLayout(fGridLayout_Right);
+
+  fCmdLineHistory = new QPlainTextEdit(this);
+  fCmdLineHistory->setReadOnly(true);
+  fCmdLineHistory->setMaximumBlockCount(50);
+  // fill cmd history
+  for (int i=0; i<fCmdHistory.size(); i++)
+    fCmdLineHistory->insertPlainText(QString("%1\n").arg(fCmdHistory[i]));
+  fCmdLine = new QLineEdit(this);
+  fCmdLine->installEventFilter(this);
+  fCmdLine->setText("$ ");
+  fCmdLine->setFocus(); // sets the keyboard focus
+  fExitButton = new QPushButton("E&xit", this);
+
+  QVBoxLayout *cmdLayout = new QVBoxLayout;
+  QLabel *cmdLabel = new QLabel("History:");
+  cmdLayout->addWidget(cmdLabel);
+  cmdLayout->addWidget(fCmdLineHistory);
+  cmdLayout->addWidget(fCmdLine);
+
+  fBoxLayout_Cmd = new QBoxLayout(QBoxLayout::LeftToRight);
+  fBoxLayout_Cmd->addLayout(cmdLayout);
+  fBoxLayout_Cmd->addWidget(fExitButton);
+  fBoxLayout_Cmd->setAlignment(fCmdLine, Qt::AlignBottom);
+  fBoxLayout_Cmd->setAlignment(fExitButton, Qt::AlignBottom);
+
+  fCmdSplitter = new QSplitter(Qt::Vertical, this);
+  QWidget *topWidget = new QWidget(this); // only needed since splitter needs a QWidget
+  topWidget->setLayout(fBoxLayout_Top);
+  QWidget *cmdWidget = new QWidget(this); // only needed since splitter needs a QWidget
+  cmdWidget->setLayout(fBoxLayout_Cmd);
+  fCmdSplitter->addWidget(topWidget);
+  fCmdSplitter->addWidget(cmdWidget);
+
+  fBoxLayout_Main->addWidget(fCmdSplitter);
+
+  // establish all the necessary signal/slots
+  connect(fRefreshCollection, SIGNAL( pressed() ), this, SLOT( refresh() ));
+  connect(fRemoveCollection, SIGNAL( pressed() ), this, SLOT( remove() ));
+  connect(fAddX, SIGNAL( pressed() ), this, SLOT( addX() ));
+  connect(fAddY, SIGNAL( pressed() ), this, SLOT( addY() ));
+  connect(fRemoveX, SIGNAL( pressed() ), this, SLOT( removeX() ));
+  connect(fRemoveY, SIGNAL( pressed() ), this, SLOT( removeY() ));
+  connect(fAddDitto, SIGNAL( pressed() ), this, SLOT( addDitto() ));
+  connect(fPlot, SIGNAL( pressed()), this, SLOT( plot()) );
+  connect(fCmdLine, SIGNAL ( returnPressed() ), this, SLOT( handleCmds() ));
+  connect(fExitButton, SIGNAL( pressed() ), this, SLOT( aboutToQuit() ));
+
+  connect(fColList, SIGNAL( currentRowChanged(int) ), this, SLOT( updateParamList(int) ));
+  connect(fColList, SIGNAL( itemDoubleClicked(QListWidgetItem*) ), this, SLOT( editCollName(QListWidgetItem*) ));
+
+  connect(fViewX, SIGNAL( currentRowChanged(int) ), this, SLOT( refreshY() ));
+  connect(fViewX, SIGNAL( itemChanged(QListWidgetItem*) ), this, SLOT( dropOnViewX(QListWidgetItem*) ));
+  connect(fViewY, SIGNAL( itemChanged(QListWidgetItem*) ), this, SLOT( dropOnViewY(QListWidgetItem*) ));
+
+  // deal with parameter data specifics
+  if (dataAtStartup)
+    handleNewData();
+
+  connect(fParamDataHandler, SIGNAL( newData() ), this, SLOT( handleNewData() ));
+
+  fCentralWidget->setLayout(fBoxLayout_Main);
+  setCentralWidget(fCentralWidget);
+
+  // in case there is no db/dat file list given open the db/dat file open menu automatically.
+  if (fln.size() == 0) {
+    fileOpen();
+    if (fParamDataHandler->GetNoOfCollections() == 0) { // file open dialog has been cancelled
+      exit(0);
+    }
+  }
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::~PmuppGui. Dtor
+ */
+PmuppGui::~PmuppGui()
+{
+  // all relevant clean up job are done in ::aboutToQuit()
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::aboutToQuit. Called when the GUI is going to close. Cleans
+ * up everything.
+ */
+void PmuppGui::aboutToQuit()
+{
+  // kill mupp_plot if active
+  if (fMuppPlot) {
+    if (fMuppPlot->state() != QProcess::NotRunning) {
+      fMuppPlot->terminate();
+    }
+  }
+
+  // remove message queue
+  key_t key;
+  int flags, msqid;
+
+  // generate the ICP message queue key
+  key = ftok(QCoreApplication::applicationFilePath().toLatin1().data(), 1);
+
+  if (key != -1) {
+    // set the necessary IPC message queue flags
+    flags = IPC_CREAT;
+
+    // open the message queue
+    msqid = msgget(key, flags | S_IRUSR | S_IWUSR);
+    if (msqid != -1) {
+      if (msgctl(msqid, IPC_RMID, NULL) == -1) {
+        std::cerr << "**ERROR** couldn't removed the message queue (msqid=" << msqid << ")." << std::endl << std::endl;
+      }
+    }
+  }  
+
+  // clean up temporary plot files
+  QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+  if (fMuppInstance != -1) {
+    QString pathName = QString("%1/.musrfit/mupp/_mupp_%2.dat").arg(env.value("HOME")).arg(fDatime);
+    QFile::remove(pathName);
+    pathName = QString("%1/.musrfit/mupp/_mupp_ftok_%2.dat").arg(env.value("HOME")).arg(fMuppInstance);
+    QFile::remove(pathName);
+  }
+
+  // needed for clean up and to save the cmd history
+  writeCmdHistory();
+
+  if (fParamDataHandler) {
+    delete fParamDataHandler;
+    fParamDataHandler = 0;
+  }
+
+  if (fAdmin) {
+    delete fAdmin;
+    fAdmin = 0;
+  }
+
+  exit(0);
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::setupFileActions. Setup the file action menus.
+ */
+void PmuppGui::setupFileActions()
+{
+  QToolBar *tb = new QToolBar( this );
+  tb->setWindowTitle( "File Actions" );
+  addToolBar( tb );
+
+  QMenu *menu = new QMenu( tr( "F&ile" ), this );
+  menuBar()->addMenu( menu );
+
+  QAction *a;
+
+  QString iconName("");
+  if (fDarkTheme)
+    iconName = QString(":/icons/document-open-dark.svg");
+  else
+    iconName = QString(":/icons/document-open-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Open..." ), this );
+  a->setShortcut( tr("Ctrl+O") );
+  a->setStatusTip( tr("Open a musrfit parameter file.") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( fileOpen() ) );
+  menu->addAction(a);
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/document-open-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "&New..." ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( fileOpen() ) );
+  }
+  tb->addAction(a);
+
+  fRecentFilesMenu = menu->addMenu( tr("Recent Files") );
+  for (int i=0; i<MAX_RECENT_FILES; i++) {
+    fRecentFilesAction[i] = new QAction(fRecentFilesMenu);
+    fRecentFilesAction[i]->setVisible(false);
+    connect( fRecentFilesAction[i], SIGNAL(triggered()), this, SLOT(fileOpenRecent()));
+    fRecentFilesMenu->addAction(fRecentFilesAction[i]);
+  }
+  fillRecentFiles();
+
+  a = new QAction( tr( "E&xit" ), this );
+  a->setShortcut( tr("Ctrl+Q") );
+  a->setStatusTip( tr("Exit Program") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( fileExit() ) );
+  menu->addAction(a);
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::setupToolActions. Setup the tools action menu.
+ */
+void PmuppGui::setupToolActions()
+{
+  QMenu *menu = new QMenu( tr( "&Tools" ), this );
+  menuBar()->addMenu( menu );
+
+  QAction *a;
+
+  a = new QAction(tr( "Plot ..." ), this );
+  a->setStatusTip( tr("Plot x/y parameters") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( plot() ) );
+  menu->addAction(a);
+
+  a = new QAction(tr( "Create ROOT Macro ..." ), this );
+  a->setStatusTip( tr("Creates a ROOT Macro with the given x/y parameters") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( createMacro() ) );
+  menu->addAction(a);
+
+  menu->addSeparator();
+
+  a = new QAction(tr( "Dump Collections ..." ), this );
+  a->setStatusTip( tr("Dump all collections") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( toolDumpCollections() ) );
+  menu->addAction(a);
+
+  a = new QAction(tr( "Dump XY ..." ), this );
+  a->setStatusTip( tr("Dump XY parameter list") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( toolDumpXY() ) );
+  menu->addAction(a);
+
+  menu->addSeparator();
+
+  a = new QAction(tr( "Add Variable" ), this );
+  a->setStatusTip( tr("Calls a dialog which allows to add variables which are expressions of db/dat vars.") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( addVar() ));
+  menu->addAction(a);
+
+  menu->addSeparator();
+
+  fNormalizeAction = new QAction(tr( "Normalize" ), this);
+  fNormalizeAction->setStatusTip( tr("Plot Data Normalized (y-axis)") );
+  fNormalizeAction->setCheckable(true);
+  connect( fNormalizeAction, SIGNAL( changed() ), this, SLOT( normalize() ) );
+  menu->addAction(fNormalizeAction);
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::setupHelpActions. Setup the help actions menu.
+ */
+void PmuppGui::setupHelpActions()
+{
+  QMenu *menu = new QMenu( tr( "&Help" ), this );
+  menuBar()->addMenu( menu );
+
+  QAction *a;
+/*
+  a = new QAction(tr( "Contents ..." ), this );
+  a->setStatusTip( tr("Help Contents") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( helpContents() ));
+  menu->addAction(a);
+*/
+
+  a = new QAction( tr( "Cmd's" ), this );
+  a->setStatusTip( tr( "Lists the command line commands" ) );
+  connect( a, SIGNAL( triggered() ), this, SLOT( helpCmds() ));
+  menu->addAction(a);
+
+  a = new QAction( tr( "Author(s) ..." ), this );
+  a->setStatusTip( tr( "About the Author(s)") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( helpAbout() ));
+  menu->addAction(a);
+
+  a = new QAction( tr( "About Qt..." ), this );
+  a->setStatusTip( tr( "Help About Qt") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( helpAboutQt() ));
+  menu->addAction(a);
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::fileOpen. Open muSR parameter files.
+ */
+void PmuppGui::fileOpen()
+{
+  QStringList list = QFileDialog::getOpenFileNames(
+         this,
+         "muSR Parameter Files",
+         "./",
+         "db-files (*.db);; All Params (*.msr *.db *.dat);; Msr-Files (*.msr);; dat-Files (*.dat);; All (*)");
+
+  if (list.count() == 0)
+    return;
+
+  bool msrPresent = false;
+  bool dbPresent = false;
+  for (int i=0; i<list.count(); i++) {
+    if (list[i].endsWith(".msr"))
+      msrPresent = true;
+    else if (list[i].endsWith(".db") || list[i].endsWith(".dat"))
+      dbPresent = true;
+    else {
+      QMessageBox::critical(this, "ERROR", QString("Found file with unkown extension:\n%1\nWill not do anything here.").arg(list[i]));
+      return;
+    }
+  }
+
+  if (msrPresent && dbPresent) {
+    QMessageBox::critical(this, "ERROR", "Currently mixed reading of msr and db/dat is not supported.");
+    return;
+  }
+
+  QString errorMsg("");
+  if (!fParamDataHandler->ReadParamFile(list, errorMsg)) {
+    QMessageBox::critical(this, "ERROR", errorMsg);
+    return;
+  }
+
+  // populate the recent files
+  if (msrPresent || dbPresent) {
+    for (int i=0; i<list.size(); i++) {
+      fAdmin->addRecentFile(list[i]); // keep it in admin
+      fillRecentFiles();              // update menu
+    }
+  }
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::fileOpenRecent. Opens a selected recent file.
+ */
+void PmuppGui::fileOpenRecent()
+{
+  QAction *action = qobject_cast<QAction *>(sender());
+
+  if (action) {
+    QStringList fln;
+    fln << action->text();
+    QString errorMsg("");
+    if (!fParamDataHandler->ReadParamFile(fln, errorMsg)) {
+      QMessageBox::critical(this, "ERROR", errorMsg);
+      return;
+    }
+  }
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::fileExit. Exit mupp
+ */
+void PmuppGui::fileExit()
+{
+  aboutToQuit();
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::toolDump. Dumps collection for debug purposes.
+ */
+void PmuppGui::toolDumpCollections()
+{
+  if (fParamDataHandler->GetNoOfCollections()) {
+    fParamDataHandler->Dump();
+  } else {
+    QMessageBox::warning(this, "dump collections", "no collections present");
+  }
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::toolDumpXY. Dump XY objects for debug purposes.
+ */
+void PmuppGui::toolDumpXY()
+{
+  if (fXY.size() > 0) {
+    for (int i=0; i<fXY.size(); i++) {
+      qInfo() << "<-><-><-><-><-><-><-><-><-><->";
+      qInfo() << i << ": collection tag: " << fXY[i].getCollectionTag();
+      qInfo() << "     x-param: " << fXY[i].getXlabel();
+      for (int j=0; j<fXY[i].getYlabelSize(); j++)
+        qInfo() << "     y-param: " << fXY[i].getYlabel(j);
+    }
+  } else {
+    QMessageBox::warning(this, "dump XY", "no XY list present yet");
+  }
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::normalize. SLOT called when menu Tools/Normalize is selected.
+ * Keeps the normalizer flag
+ */
+void PmuppGui::normalize()
+{
+  fNormalize = fNormalizeAction->isChecked();
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::helpCmds. help command information popup.
+ */
+void PmuppGui::helpCmds()
+{
+  QMessageBox::information(this, "cmd help", "<b>help:</b> this help.<br>"\
+                           "<b>add var</b>: allows to add a variable which is formula of collection vars.<br>"\
+                           "<b>ditto</b>: addX/Y for the new selection as for the previous ones.<br>"\
+                           "<b>dump collections:</b> dumps all currently loaded collections.<br>"\
+                           "<b>dump XY:</b> dumps X/Y tree.<br>"\
+                           "<b>exit/quit:</b> close mupp.<br>"\
+                           "<b>load:</b> calls the open file dialog.<br>"\
+                           "<b>norm &lt;flag&gt;:</b> normalize plots to maximum if &lt;flag&gt; is true<br>"\
+                           "<b>macro &lt;fln&gt;:</b> saves the X/Y data as a ROOT macro (*.C).<br>"\
+                           "<b>path &lt;macroPath&gt;:</b> sets the path to the place where the macros will be saved.<br>"\
+                           "<b>plot:</b> plot the X/Y data.<br>"\
+                           "<b>refresh:</b> refresh the currently selected collection.<br>"\
+                           "<b>select &lt;nn&gt;:</b> select collection in GUI.<br>"\
+                           "&nbsp;&nbsp;&nbsp;&nbsp;&lt;nn&gt; is either the collection name or the row number.<br>"\
+                           "<b>x &lt;param_name&gt; / y &lt;param_name&gt;:</b> add the parameter to the select axis.<br>"\
+                           "<b>rmx &lt;param_name&gt; / rmy &lt;param_name&gt;:</b> remove the parameter of the select axis.<br>"\
+                           "<b>flush:</b> flush the history buffer.");
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::helpAbout. Help about message box.
+ */
+void PmuppGui::helpAbout()
+{
+  QMessageBox::information(this, "about", QString("mupp: created by Andreas Suter.\nVersion: %1\nBranch: %2\nHash: %3").arg(MUPP_VERSION).arg(GIT_BRANCH).arg(GIT_COMMIT_HASH));
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::helpAboutQt. Qt about message box.
+ */
+void PmuppGui::helpAboutQt()
+{
+  QMessageBox::aboutQt(this);
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::eventFilter. Event filter for the history buffer.
+ * @param o object pointer
+ * @param e event pointer
+ *
+ * @return
+ */
+bool PmuppGui::eventFilter(QObject *o, QEvent *e)
+{
+  static int idx = fCmdHistory.size();
+
+  if (e->type() == QEvent::KeyPress) {
+    QKeyEvent *k = static_cast<QKeyEvent*>(e);
+    int key = k->key();
+    if (key == Qt::Key_Up) {
+      if (idx > 0)
+        idx--;
+      if (idx < fCmdHistory.size())
+        fCmdLine->setText(fCmdHistory[idx]);
+    } else if (key == Qt::Key_Down) {
+      if (idx < fCmdHistory.size())
+        idx++;
+      if (idx < fCmdHistory.size())
+        fCmdLine->setText(fCmdHistory[idx]);
+      else
+        fCmdLine->setText("$ ");
+    } else if (key == Qt::Key_Return) {
+      QString cmd = fCmdLine->text();
+      bool found = false;
+      for (int i=0; i<fCmdHistory.size(); i++) {
+        if (cmd == fCmdHistory[i]) {
+          found = true;
+        }
+      }
+      if (!found) {
+        if (fCmdHistory.size() >= 50)
+          fCmdHistory.removeFirst();
+        fCmdHistory.push_back(cmd);
+        fCmdLineHistory->insertPlainText(QString("%1\n").arg(cmd));
+      }
+    }
+    return false;
+  }
+
+  // make sure the base class can handle all the events not handled here
+  return QMainWindow::eventFilter(o, e);
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::getTheme. Tries to get the theme of the system.
+ */
+void PmuppGui::getTheme()
+{
+  fDarkTheme = false; // true if theme is dark
+  fDarkToolBarIcon = false; // needed for ubuntu dark since there the menu icons
+                            // are dark, however the toolbar icons are plain!
+
+  QString str = QIcon::themeName();
+
+  if (str.isEmpty()) {
+    if (fAdmin->isDarkTheme()) {
+      fDarkTheme = true;
+      fDarkToolBarIcon = true;
+    }
+    return;
+  }
+
+  if (str.contains("dark", Qt::CaseInsensitive)) {
+    fDarkTheme = true;
+    if (str.contains("ubuntu", Qt::CaseInsensitive)) {
+      fDarkToolBarIcon = false;
+    } else {
+      fDarkToolBarIcon = true;
+    }
+  }
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * <p>fill the recent file list in the menu.
+ */
+void PmuppGui::fillRecentFiles()
+{
+  for (int i=0; i<fAdmin->getNumRecentFiles(); i++) {
+    fRecentFilesAction[i]->setText(fAdmin->getRecentFile(i));
+    fRecentFilesAction[i]->setVisible(true);
+  }
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::readCmdHistory. Read the command history from file
+ * mupp_history.txt under $HOME/.musrfit/mupp
+ */
+void PmuppGui::readCmdHistory()
+{
+  QProcessEnvironment procEnv = QProcessEnvironment::systemEnvironment();
+  QString home = procEnv.value("HOME", "");
+  if (home.isEmpty())
+    return;
+
+  QString pathName = home + "/.musrfit/mupp/mupp_history.txt";
+
+  QFile file(pathName);
+  if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+    std::cerr << std::endl;
+    std::cerr << "***********" << std::endl;
+    std::cerr << "**WARNING** readCmdHistory(): couldn't open mupp_history.txt for reading ..." << std::endl;;
+    std::cerr << "***********" << std::endl;
+    return;
+  }
+
+  QTextStream fin(&file);
+
+  fCmdHistory.clear();
+  QString line;
+  while (!fin.atEnd()) {
+    line = fin.readLine();
+    if (line.startsWith("%") || line.isEmpty())
+      continue;
+    fCmdHistory.push_back(line);
+  }
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::writeCmdHistory. Write the command history buffer to file.
+ */
+void PmuppGui::writeCmdHistory()
+{
+  QProcessEnvironment procEnv = QProcessEnvironment::systemEnvironment();
+  QString home = procEnv.value("HOME", "");
+  if (home.isEmpty())
+    return;
+
+  QString pathName = home + "/.musrfit/mupp/";
+  QDir dir(pathName);
+  if (!dir.exists()) {
+    // directory $HOME/.musrfit/mupp does not exist hence create it
+    dir.mkpath(pathName);
+  }
+  pathName += "mupp_history.txt";
+
+  QFile file(pathName);
+  if (!file.open(QIODevice::WriteOnly | QIODevice::Text))
+    return;
+
+  QTextStream fout(&file);
+
+  // write header
+  QDateTime dt = QDateTime::currentDateTime();
+  fout << "% mupp history file" << Qt::endl;
+  fout << "% " << dt.toString("HH:mm:ss - yy/MM/dd") << Qt::endl;
+
+  // write history
+  for (int i=0; i<fCmdHistory.size(); i++)
+    fout << fCmdHistory[i] << Qt::endl;
+
+  fout << "% end mupp history file" << Qt::endl;
+
+  file.close();
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::refresh. Refresh the collections, i.e. re-read it from file.
+ */
+void PmuppGui::refresh()
+{
+  QListWidgetItem *item = fColList->currentItem();
+  if (item == 0)
+    return;
+  QString label = item->text();
+
+  QString pathName("");
+  int collIdx=-1;
+
+  for (int i=0; i<fParamDataHandler->GetNoOfCollections(); i++) {
+    if (fParamDataHandler->GetCollection(i)->GetName() == label) { // found collection
+      pathName = fParamDataHandler->GetCollection(i)->GetPathName();
+      collIdx = i;
+      break;
+    }
+  }
+
+  // re-load collection
+  PmuppCollection coll;
+  bool ok=false;
+  if (pathName.endsWith(".db")) {
+    QString errorMsg("");
+    coll = fParamDataHandler->ReadDbFile(pathName, ok, errorMsg);
+    if (!ok) {
+      QMessageBox::critical(this, "ERROR - REFRESH",
+                            QString("Couldn't refresh %1\nFile corrupted?!\n").arg(fParamDataHandler->GetCollection(collIdx)->GetName())+
+                            errorMsg);
+      return;
+    }
+  } else if (pathName.endsWith(".dat")) {
+    QString errorMsg("");
+    coll = fParamDataHandler->ReadColumnParamFile(pathName, ok, errorMsg);
+    if (!ok) {
+      QMessageBox::critical(this, "ERROR - REFRESH",
+                            QString("Couldn't refresh %1\nFile corrupted?!\n").arg(fParamDataHandler->GetCollection(collIdx)->GetName())+
+                            errorMsg);
+      return;
+    }
+  } else {
+    QMessageBox::critical(this, "ERROR - REFRESH",
+                          QString("Couldn't refresh %1").arg(fParamDataHandler->GetCollection(collIdx)->GetName()));
+    return;
+  }
+
+  QString collName = pathName;
+  int pos = collName.lastIndexOf("/");
+  collName.remove(0, pos+1);
+  coll.SetName(collName);
+  coll.SetPathName(pathName);
+  fParamDataHandler->ReplaceCollection(coll, collIdx);
+
+  // update the parameter list (GUI)
+  updateParamList(collIdx);
+
+  // update XY list (GUI)
+  updateXYListGui();
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::remove. Remove collection from data handler and GUI.
+ */
+void PmuppGui::remove()
+{
+  // get current collection
+  QListWidgetItem *item = fColList->currentItem();
+  if (item == 0)
+    return;
+
+  QString collName = item->text();
+
+  // remove it from the list widget but keep the index for further use
+  int idx = fColList->row(item);
+  fColList->removeItemWidget(item);
+  delete item;
+
+  // remove it from the collection handler
+  fParamDataHandler->RemoveCollection(collName);
+
+  // next it is necessary to update the XY-parameter list
+  updateXYList(fColList->currentRow());
+
+  // if there no collections left remove all the parameters from the X/Y list
+  // remove all fXY as well
+  if (fColList->count() == 0) {
+    fViewX->clear();
+    fViewY->clear();
+    fXY.clear();
+    return;
+  }
+
+  // select the row before the delete one if possible
+  if (idx > 0)
+    idx -= 1;
+  fColList->setCurrentRow(idx, QItemSelectionModel::Select);
+
+  // update the parameter list (GUI)
+  updateParamList(idx);
+
+  // update XY list (GUI)
+  updateXYListGui();
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::addX add param to x-axis
+ * @param param name of the parameter
+ */
+void PmuppGui::addX(QString param)
+{
+  QString paramName("");
+  if (!param.isEmpty()) {
+    // check that param exists
+    if (fParamList->findItems(param, Qt::MatchCaseSensitive).empty()) {
+      QMessageBox::critical(this, "**ERROR**", QString("Parameter X '%1' not found").arg(param));
+      return;
+    }
+    paramName = param;
+  } else {
+    // get the parameter name from the parameter list widget
+    QListWidgetItem *item = fParamList->currentItem();
+    if (item == 0)
+      return;
+    paramName = item->text();
+  }
+  int idx = fColList->currentRow();
+  QString xLabel = QString("%1 (-%2-)").arg(paramName).arg(idx);
+
+  // check if it is not already present
+  for (int i=0; i<fViewX->count(); i++) {
+    if (fViewX->item(i)->text() == xLabel)
+      return;
+  }
+
+  // set the parameter name on the view X list widget
+  fViewX->addItem(xLabel);
+  fViewX->setCurrentRow(fViewX->count()-1);
+
+  // add the item to the XY list
+  PmuppXY xyItem;
+  xyItem.setCollectionTag(idx);
+  xyItem.setXlabel(xLabel);
+
+  fXY.push_back(xyItem);
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::addY add param to y-labels
+ * @param param name of the parameter
+ */
+void PmuppGui::addY(QString param)
+{  
+  QString paramName("");
+  if (!param.isEmpty()) {
+    // check that param exists
+    if (fParamList->findItems(param, Qt::MatchCaseSensitive).empty()) {
+      QMessageBox::critical(this, "**ERROR**", QString("Parameter Y '%1' not found").arg(param));
+      return;
+    }
+    paramName = param;
+  } else {
+    // get the parameter name from the parameter list widget
+    QListWidgetItem *item = fParamList->currentItem();
+    if (item == 0)
+      return;
+    paramName = item->text();
+  }
+  int idx = fColList->currentRow();
+  QString yLabel = QString("%1 (-%2-)").arg(paramName).arg(idx);
+
+  // make sure that any x-parameter selection is already present
+  if (fViewX->count() == 0) {
+    QMessageBox::warning(this, "**WARNING**", "It is compulsory to have at least one x-parameter set\nbefore trying to add a y-parameter.");
+    return;
+  }
+
+  // check if collection of x- and y-parameter selection correspond
+  idx=getXlabelIndex(fViewX->currentItem()->text());
+  if (idx == -1)
+    return;
+  if (fXY[idx].getCollectionTag() != fColList->currentRow()) {
+    QMessageBox::warning(this, "**WARNING**", "x/y parameters need to originate from the same collection.");
+    return;
+  }
+
+  // check if it is not already present
+  for (int i=0; i<fViewY->count(); i++) {
+    if (fViewY->item(i)->text() == yLabel)
+      return;
+  }
+
+  // set the parameter name on the view Y list widget
+  fViewY->addItem(yLabel);
+
+  // add the item to the XY list
+  idx=getXlabelIndex(fViewX->currentItem()->text());
+  if (idx == -1)
+    return;
+
+  fXY[idx].addYlabel(yLabel);
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::removeX. remove from the x-axis
+ * @param param x-axis parameter name to be removed
+ */
+void PmuppGui::removeX(QString param)
+{
+  QListWidgetItem *item = fViewX->currentItem();
+  if (item == 0)
+    return;
+
+  int idx;
+  if (!param.isEmpty()) {
+    idx=fColList->currentRow();
+    param = QString("%1 (-%2-)").arg(param).arg(idx);
+    idx=getXlabelIndex(param);
+  } else {
+    idx=getXlabelIndex(item->text());
+  }
+
+  if (idx == -1)
+    return;
+  fXY.remove(idx);
+
+  fViewX->removeItemWidget(item);
+  delete item;
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::removeY. remove from the y-axis
+ * @param param y-axis paramter name to be removed.
+ */
+void PmuppGui::removeY(QString param)
+{
+  QListWidgetItem *item = fViewY->currentItem();
+  if (item == 0)
+    return;
+
+  // find y in XY and remove it
+  QString xLabel = fViewX->currentItem()->text();
+  QString yLabel = item->text();
+  if (!param.isEmpty()) {
+    yLabel = param;
+  }
+  int idx = getXlabelIndex(xLabel);
+  if (idx == -1)
+    return;  
+  fXY[idx].removeYlabel(yLabel);
+
+  fViewY->removeItemWidget(item);
+  delete item;
+}
+
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::addDitto. Add x-/y-axis settings present for selected
+ * collection.
+ */
+void PmuppGui::addDitto()
+{
+  if (fXY.size() == 0) {
+    QMessageBox::critical(this, "ERROR", "No x/y items present.\nTherefore nothing to be done.");
+    return;
+  }
+
+  if (!allXYEqual()) {
+    QMessageBox::critical(this, "ERROR", "Multiple unequal sets of x/y items present.\nDo not know how to handle.");
+    return;
+  }
+
+  // get the selected items from the collection
+  QList<QListWidgetItem*> items = fColList->selectedItems();
+  if (items.count() == 0) { // no selections present hence drop out
+    return;
+  }
+
+  // verify that all selected items have corresponding x/y values
+  bool ok=false;
+  PmuppCollection muCol;
+  PmuppRun muRun;
+  for (int i=0; i<items.count(); i++) {
+    ok = false;
+    muCol = fParamDataHandler->GetCollection(items[i]->text(), ok);
+    if (!ok)
+      return;
+    muRun = muCol.GetRun(0);
+    // check x-values
+    if (!findValue(muRun, kXaxis))
+      return;
+    // check y-values
+    if (!findValue(muRun, kYaxis))
+      return;
+  }
+
+  // populate all necessary x- and y-values for all selected collections
+  PmuppXY muXY = fXY[0];
+  int idx;
+  for (int i=0; i<items.count(); i++) {
+    idx = fColList->row(items[i]);
+    if (indexAlreadyPresent(idx))
+      continue;
+    replaceIndex(muXY, idx);
+    fXY.push_back(muXY);
+    // add x-axis view
+    fViewX->addItem(muXY.getXlabel());
+    fViewX->setCurrentRow(fViewX->count()-1);
+  }
+
+  // un-select the collecion list
+  fColList->clearSelection();
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::addVar. Add a variable. A variable is an expression of
+ * variables present in the collection.
+ */
+void PmuppGui::addVar()
+{
+  // create collection list
+  QVector<PCollInfo> collection_list;
+
+  // go through all available collections and obtain the needed information
+  PCollInfo collInfo;
+  for (int i=0; i<fParamDataHandler->GetNoOfCollections(); i++) {
+    // get collection name
+    collInfo.fCollName = fParamDataHandler->GetCollectionName(i);
+    // get variable names
+    for (int j=0; j<fParamDataHandler->GetCollection(i)->GetRun(0).GetNoOfParam(); j++) {
+      collInfo.fVarName << fParamDataHandler->GetCollection(i)->GetRun(0).GetParam(j).GetName();
+    }
+    collection_list.push_back(collInfo);
+  }
+
+  // call variable dialog
+  if (fVarDlg != nullptr) {
+    delete fVarDlg;
+    fVarDlg = nullptr;
+  }
+  fVarDlg = new PVarDialog(collection_list, fDarkTheme);
+  connect(fVarDlg, SIGNAL(check_request(QString,QVector<int>)), this, SLOT(check(QString,QVector<int>)));
+  connect(fVarDlg, SIGNAL(add_request(QString,QVector<int>)), this, SLOT(add(QString,QVector<int>)));
+  fVarDlg->show();
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::check a variable string syntactically and sementically for
+ * validity.
+ * @param varStr var string to be parsed.
+ * @param idx vector of indices telling which collections have been selected.
+ */
+void PmuppGui::check(QString varStr, QVector<int> idx)
+{
+  int count = 0;
+  for (int i=0; i<idx.size(); i++) {
+    PVarHandler var_check(fParamDataHandler->GetCollection(i), varStr.toLatin1().data());
+    if (var_check.isValid()) {
+      count++;
+    } else {
+      parseErrMsgDlg();
+      return;
+    }
+  }
+  if (count == idx.size()) {
+    QMessageBox::information(this, "**INFO**", "Parsing successful.");
+  }
+  fVarDlg->raise();
+  fVarDlg->setFocus();
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::add a variable to the GUI for given collections.
+ * @param varStr variable string to be parsed.
+ * @param idx vector of indices telling which collections have been selected.
+ */
+void PmuppGui::add(QString varStr, QVector<int> idx)
+{
+  // analyze varStr to see how many variables are present
+  // the PVarHandler class handles only ONE variable of ONE collection.
+  QStringList varNames = getVarNames(varStr);
+
+  // go through all collections
+  for (int i=0; i<idx.size(); i++) {
+    // go through all the defined variables
+    for (int j=0; j<varNames.count(); j++) {
+      PVarHandler var(fParamDataHandler->GetCollection(idx[i]),
+                      varStr.toLatin1().data(),
+                      varNames[j].toLatin1().data());
+      if (!var.isValid()) {
+        parseErrMsgDlg();
+        return;
+      }
+      // check if variable name for the given collection already exists
+      int var_idx=-1;
+      for (int k=0; k<fVarHandler.size(); k++) {
+        if ((fVarHandler[k].getVarName() == var.getVarName()) &&
+            (fVarHandler[k].getCollName()) == var.getCollName()) {
+          var_idx = k;
+        }
+      }
+      if (var_idx == -1) // a new variable
+        fVarHandler.push_back(var); // collect all valid variables
+      else // replace an already existing variable
+        fVarHandler[var_idx] = var;
+    }
+  }
+
+  // add the new variable to the paramter list (fParamList)
+  // update the parameter list (GUI)
+  updateParamList(fColList->currentRow());
+  // update XY list (GUI)
+  updateXYListGui();
+
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::parseErrMsgDlg reads the parse error message log and creates
+ * a dialog for the user.
+ */
+void PmuppGui::parseErrMsgDlg()
+{
+  // get error messages
+  QString mupp_err = QString("%1/.musrfit/mupp/mupp_err.log").arg(QString(qgetenv("HOME")));
+  QFile fin(mupp_err);
+  QString errStr("");
+  if (fin.open(QIODevice::ReadOnly | QIODevice::Text)) {
+    QTextStream in(&fin);
+    while (!in.atEnd()) {
+      errStr += in.readLine();
+      errStr += "\n";
+    }
+  }
+  fin.close();
+  QFile::remove(mupp_err);
+
+  if (errStr.isEmpty())
+    errStr = "unknown error - should never happen.";
+  QString msg = QString("Parse error(s):\n");
+  msg += errStr;
+  PVarErrorDialog *errDlg = new PVarErrorDialog(msg);
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::getVarNames collects from the parse string the variable
+ * names.
+ * @param parseStr
+ * @return
+ */
+QStringList PmuppGui::getVarNames(QString parseStr)
+{
+  QStringList varNames;
+  QString str;
+  int idxS=0, idxE=0;
+
+  while (idxS != -1) {
+    idxS = parseStr.indexOf("var", idxS);
+    if (idxS != -1) {
+      idxE = parseStr.indexOf("=", idxS);
+      str = parseStr.mid(idxS+4, idxE-idxS-4).trimmed();
+      if (!str.endsWith("Err"))
+        varNames << str;
+      idxS = idxE;
+    }
+  }
+
+  return varNames;
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::getValues get parameter values from a collection or a variable.
+ * @param collName name of the collection
+ * @param paramName parameter name
+ * @param ok true if any data are found, false otherwise
+ *
+ * @return requested values if found, otherwise and empty vector and ok set to false.
+ */
+QVector<double> PmuppGui::getValues(QString collName, QString paramName, bool &ok)
+{
+  ok = false;
+  QVector<double> values;
+
+  // 1st check if paramName is found in collection
+  values = fParamDataHandler->GetValues(collName, paramName);
+
+  // 2nd check if paramName is found in variable handler
+  if (values.size() == 0) {
+    for (int i=0; i<fVarHandler.size(); i++) {
+      if ((fVarHandler[i].getCollName() == collName) &&
+          (fVarHandler[i].getVarName() == paramName)) {
+        QVector<double> qvec(fVarHandler[i].getValues().begin(), fVarHandler[i].getValues().end());
+        values = qvec;
+      }
+    }
+  }
+
+  if (values.size() > 0)
+    ok = true;
+
+  return values;
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::getPosErr get the positve error estimates of parameter from
+ * a collection or a variable.
+ * @param collName name of the collection
+ * @param paramName parameter name
+ * @param ok true if positive errors are found, false otherwise
+ *
+ * @return requested positive errors if found, otherwise and empty vector and ok set to false.
+ */
+QVector<double> PmuppGui::getPosErr(QString collName, QString paramName, bool &ok)
+{
+  ok = false;
+  QVector<double> values;
+
+  // 1st check if paramName is found in collection
+  values = fParamDataHandler->GetPosErr(collName, paramName);
+
+  // 2nd check if paramName is found in variable handler
+  if (values.size() == 0) {
+    for (int i=0; i<fVarHandler.size(); i++) {
+      if ((fVarHandler[i].getCollName() == collName) &&
+          (fVarHandler[i].getVarName() == paramName)) {
+        QVector<double> qvec(fVarHandler[i].getErrors().begin(), fVarHandler[i].getErrors().end());
+        values = qvec;
+      }
+    }
+  }
+
+  if (values.size() > 0)
+    ok = true;
+
+  return values;
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::getNegErr get the negative error estimates of parameter from
+ * a collection or a variable.
+ * @param collName name of the collection
+ * @param paramName parameter name
+ * @param ok true if negative errors are found, false otherwise
+ *
+ * @return requested negative errors if found, otherwise and empty vector and ok set to false.
+ */
+QVector<double> PmuppGui::getNegErr(QString collName, QString paramName, bool &ok)
+{
+  ok = false;
+  QVector<double> values;
+
+  // 1st check if paramName is found in collection
+  values = fParamDataHandler->GetNegErr(collName, paramName);
+
+  // 2nd check if paramName is found in variable handler
+  if (values.size() == 0) {
+    for (int i=0; i<fVarHandler.size(); i++) {
+      if ((fVarHandler[i].getCollName() == collName) &&
+          (fVarHandler[i].getVarName() == paramName)) {
+        QVector<double> qvec(fVarHandler[i].getErrors().begin(), fVarHandler[i].getErrors().end());
+        values = qvec;
+      }
+    }
+  }
+
+  if (values.size() > 0)
+    ok = true;
+
+  return values;
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::findValue check if run is found x-/y-axis
+ * @param run which is searched
+ * @param tag x-/y-axis selector
+ * @return true if found
+ */
+bool PmuppGui::findValue(PmuppRun &run, EAxis tag)
+{
+  bool result = false;
+
+  if (tag == kXaxis) {
+    for (int i=0; i<fXY.size(); i++) {
+      for (int j=0; j<run.GetNoOfParam(); j++) {
+        if (fXY[i].getXlabel().startsWith(run.GetParam(j).GetName())) {
+          result = true;
+          break;
+        }
+      }
+    }
+  } else if (tag == kYaxis) {
+    for (int i=0; i<fXY.size(); i++) {
+      for (int j=0; j<fXY[i].getYlabelSize(); j++) {
+        for (int k=0; k<run.GetNoOfParam(); k++) {
+          if (fXY[i].getYlabel(j).startsWith(run.GetParam(k).GetName())) {
+            result = true;
+            break;
+          }
+        }
+      }
+    }
+  }
+
+  return result;
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::allXYEqual. Check that all x-/y-labels present are equal.
+ * @return true if this is the case.
+ */
+bool PmuppGui::allXYEqual()
+{
+  // first make sure that all x-labels are equivalent. They have the form '<label> (-#-)' and
+  // all <label> must be equal
+  QString str1, str2;
+  int idx;
+  str1 = fXY[0].getXlabel();
+  idx = str1.lastIndexOf(" (-");
+  str1.remove(idx, str1.length()-idx);
+  for (int i=1; i<fXY.size(); i++) {
+    str2 = fXY[i].getXlabel();
+    idx = str2.lastIndexOf(" (-");
+    str2.remove(idx, str2.length()-idx);
+    if (str1 != str2)
+      return false;
+  }
+
+  // make sure that the number of all y-label items is equal
+  for (int i=1; i<fXY.size(); i++) {
+    if (fXY[0].getYlabelSize() != fXY[i].getYlabelSize())
+      return false;
+  }
+
+  // make sure that the y-labels are equivalent.
+  for (int j=0; j<fXY[0].getYlabelSize(); j++) {
+    str1 = fXY[0].getYlabel(j);
+    idx = str1.lastIndexOf(" (-");
+    str1.remove(idx, str1.length()-idx);
+    for (int i=1; i<fXY.size(); i++) {
+      str2 = fXY[i].getYlabel(j);
+      idx = str2.lastIndexOf(" (-");
+      str2.remove(idx, str2.length()-idx);
+      if (str1 != str2)
+        return false;
+    }
+  }
+
+  return true;
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::indexAlreadyPresent. Check if x-label as given by idx is
+ * already present.
+ * @param idx which gets the x-label.
+ * @return true, if found.
+ */
+bool PmuppGui::indexAlreadyPresent(const int idx)
+{
+  QString str = QString("(-%1-)").arg(idx);
+
+  for (int i=0; i<fXY.size(); i++) {
+    if (fXY[i].getXlabel().contains(str))
+      return true;
+  }
+
+  return false;
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::replaceIndex replace xy-object at position idx.
+ * @param data xy-object to be replaced
+ * @param idx index position where data needs to be replaced.
+ */
+void PmuppGui::replaceIndex(PmuppXY &data, const int idx)
+{
+  // handle x-label
+  QString label = data.getXlabel();
+  int pos = label.lastIndexOf(" (-");
+  label.truncate(pos);
+  QString str = QString(" (-%1-)").arg(idx);
+  label += str;
+  data.setXlabel(label);
+
+  // handle y-label(s)
+  for (int i=0; i<data.getYlabelSize(); i++) {
+    label = data.getYlabel(i);
+    int pos = label.lastIndexOf(" (-");
+    label.truncate(pos);
+    label += str;
+    data.setYlabel(i, label);
+  }
+
+  data.setCollectionTag(idx);
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::getXlabelIndex. Get x-label index for a given search label.
+ * @param label for which the index is searched for.
+ * @return idx of the searched label on success, -1 otherwise.
+ */
+int PmuppGui::getXlabelIndex(QString label)
+{
+  int idx=-1;
+
+  for (int i=0; i<fXY.size(); i++) {
+    if (fXY[i].getXlabel() == label) {
+      idx = i;
+      break;
+    }
+  }
+
+  return idx;
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::dropOnViewX. Drag and drop for x-axis.
+ * @param item to be dropped.
+ */
+void PmuppGui::dropOnViewX(QListWidgetItem *item)
+{
+  if (item == 0)
+    return;
+
+  if (item->text().contains("(-"))
+    return;
+
+  int idx = fColList->currentRow();
+  QString xLabel = QString("%1 (-%2-)").arg(item->text()).arg(idx);
+
+  // check if it is not already present
+  for (int i=0; i<fViewX->count(); i++) {
+    if (fViewX->item(i)->text() == xLabel) {
+      fViewX->removeItemWidget(item);
+      delete item;
+      return;
+    }
+  }
+
+  fViewX->setCurrentItem(item);
+  fViewX->currentItem()->setText(xLabel);
+
+  // add the item to the XY list
+  PmuppXY xyItem;
+  xyItem.setCollectionTag(idx);
+  xyItem.setXlabel(xLabel);
+
+  fXY.push_back(xyItem);
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::dropOnViewY. Drag and drop for y-axis.
+ * @param item to be dropped.
+ */
+void PmuppGui::dropOnViewY(QListWidgetItem *item)
+{
+  if (item == 0)
+    return;
+
+  if (item->text().contains("(-"))
+    return;
+
+  // make sure that any x-parameter selection is already present
+  if (fViewX->count() == 0) {
+    fViewY->removeItemWidget(item);
+    delete item;
+    QMessageBox::warning(this, "**WARNING**", "It is compulsory to have at least one x-parameter set\nbefore trying to add a y-parameter.");
+    return;
+  }
+
+  int idx = fColList->currentRow();
+  QString yLabel = QString("%1 (-%2-)").arg(item->text()).arg(idx);
+
+  // check if it is not already present
+  for (int i=0; i<fViewY->count(); i++) {
+    if (fViewY->item(i)->text() == yLabel) {
+      fViewY->removeItemWidget(item);
+      delete item;
+      return;
+    }
+  }
+
+  fViewY->setCurrentItem(item);
+  fViewY->currentItem()->setText(yLabel);
+
+  // add the item to the XY list
+  idx=getXlabelIndex(fViewX->currentItem()->text());
+  if (idx == -1)
+    return;
+
+  fXY[idx].addYlabel(yLabel);
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::refreshY. Refresh the y-axis objects.
+ */
+void PmuppGui::refreshY()
+{
+  // clear Y view
+  fViewY->clear();
+
+  // get proper X view item
+  QListWidgetItem *item = fViewX->currentItem();
+  if (item == 0)
+    return;
+
+  QString xLabel = item->text();
+  int idx = getXlabelIndex(xLabel);
+  if (idx == -1)
+    return;
+
+  for (int i=0; i<fXY[idx].getYlabelSize(); i++)
+    fViewY->addItem(fXY[idx].getYlabel(i));
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::createMacro. create a root macro based on the current settings.
+ */
+void PmuppGui::createMacro()
+{
+  QVector<PmuppMarker> marker = fAdmin->getMarkers();
+  QVector<PmuppColor> color = fAdmin->getColors();
+
+  if (fXY.size() == 0) {
+    QMessageBox::information(this, "createMacro", "No parameter list present.");
+    return;
+  }
+
+  if (fMacroName.isEmpty()) {
+    fMacroName = "__mupp.C";
+  }
+  if (!fMacroPath.isEmpty()) {
+    if (fMacroPath.endsWith("/"))
+      fMacroName.prepend(fMacroPath);
+    else
+      fMacroName.prepend(fMacroPath + "/");
+  }
+
+  QFile file(fMacroName);
+  if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
+    QMessageBox::critical(this, "**ERROR**", "Couldn't open macro file for writting.");
+    return;
+  }
+
+  QTextStream fout(&file);
+
+  fout << "// " << fMacroName.toLatin1().data() << Qt::endl;
+  fout << "// " << QDateTime::currentDateTime().toString("yy/MM/dd - HH:mm:ss") << Qt::endl;
+  fout << "// " << Qt::endl;
+  fout << "{" << Qt::endl;
+  fout << "  gROOT->Reset();" << Qt::endl;
+  fout << Qt::endl;
+  fout << "  gStyle->SetOptTitle(0);" << Qt::endl;
+  fout << "  gStyle->SetOptDate(0);" << Qt::endl;
+  fout << "  gStyle->SetPadColor(TColor::GetColor(255,255,255));    // pad bkg to white" << Qt::endl;
+  fout << "  gStyle->SetCanvasColor(TColor::GetColor(255,255,255)); // canvas bkg to white" << Qt::endl;
+  fout << Qt::endl;
+  fout << "  Int_t nn=0, i=0;" << Qt::endl;
+  fout << "  Double_t null[512];" << Qt::endl;
+  fout << "  Double_t xx[512];" << Qt::endl;
+  fout << "  Double_t yy[512];" << Qt::endl;
+  fout << "  Double_t yyPosErr[512];" << Qt::endl;
+  fout << "  Double_t yyNegErr[512];" << Qt::endl;
+
+  // create all the necessary TGraph's
+  int collTag = -1, pos;
+  QString collName("");
+  QString xLabel(""), yLabel("");
+  char gLabel[128];
+  QVector<double> xx, yy, yyPosErr, yyNegErr;
+  double xMin=1.0e10, xMax=-1.0e10, yMin=1.0e10, yMax=-1.0e10;
+  bool ok;
+  for (int i=0; i<fXY.size(); i++) {
+    collTag = fXY[i].getCollectionTag();
+    collName = fColList->item(collTag)->text();
+    // x-label
+    xLabel = fXY[i].getXlabel();
+    pos = xLabel.indexOf(" (-");
+    xLabel.remove(pos, xLabel.length()-pos);
+    // get x-vector
+    xx = getValues(collName, xLabel, ok);
+    if (!ok) {
+      QString msg = QString("Couldn't get x-axis data from '%1', coll: '%2'").arg(xLabel).arg(collName);
+      QMessageBox::critical(this, "**ERROR**", msg);
+      return;
+    }
+    getMinMax(xx, xMin, xMax);
+    // a couple of x-vector specifics
+    if ((xLabel == "dataT") || (xLabel == "dataE"))
+      xMin = 0.0;
+    // get y-, yPosErr-, and yNegErr-vector
+    for (int j=0; j<fXY[i].getYlabelSize(); j++) {
+      // y-label
+      yLabel = fXY[i].getYlabel(j);
+      pos = yLabel.indexOf(" (-");
+      yLabel.remove(pos, yLabel.length()-pos);
+      // get y-vector
+      yy = getValues(collName, yLabel, ok);
+      if (!ok) {
+        QString msg = QString("Couldn't get y-axis data from '%1', coll: '%2'").arg(yLabel).arg(collName);
+        QMessageBox::critical(this, "**ERROR**", msg);
+        return;
+      }
+      yyPosErr = getPosErr(collName, yLabel, ok);
+      if (!ok) {
+        QString msg = QString("Couldn't get y-axis pos. error data from '%1', coll: '%2'").arg(yLabel).arg(collName);
+        QMessageBox::critical(this, "**ERROR**", msg);
+        return;
+      }
+      yyNegErr = getNegErr(collName, yLabel, ok);
+      if (!ok) {
+        QString msg = QString("Couldn't get y-axis neg. error data from '%1', coll: '%2'").arg(yLabel).arg(collName);
+        QMessageBox::critical(this, "**ERROR**", msg);
+        return;
+      }
+      yLabel = substituteDefaultLabels(yLabel);
+      getMinMax(yy, yMin, yMax);
+      // create TGraph objects
+      fout << Qt::endl;
+      snprintf(gLabel, sizeof(gLabel), "g_%d_%d", i, j);
+      fout << "  nn = " << xx.size() << ";" << Qt::endl;
+      fout << Qt::endl;
+      fout << "  // null value vector" << Qt::endl;
+      for (int k=0; k<xx.size(); k++) {
+        fout << "  null[" << k << "]=0.0;" << Qt::endl;
+      }
+      fout << "  // xx" << Qt::endl;
+      for (int k=0; k<xx.size(); k++) {
+        fout << "  xx[" << k << "]=" << xx[k] << ";" << Qt::endl;
+      }
+      fout << "  // yy" << Qt::endl;
+      for (int k=0; k<xx.size(); k++) {
+        fout << "  yy[" << k << "]=" << yy[k] << ";" << Qt::endl;
+      }
+      fout << "  // yyPosErr" << Qt::endl;
+      for (int k=0; k<xx.size(); k++) {
+        fout << "  yyPosErr[" << k << "]=" << yyPosErr[k] << ";" << Qt::endl;
+      }
+      fout << "  // yyNegErr" << Qt::endl;
+      for (int k=0; k<xx.size(); k++) {
+        fout << "  yyNegErr[" << k << "]=" << fabs(yyNegErr[k]) << ";" << Qt::endl;
+      }
+      fout << Qt::endl;
+      fout << "  TGraphAsymmErrors *" << gLabel << " = new TGraphAsymmErrors(nn, xx, yy, null, null, yyNegErr, yyPosErr);" << Qt::endl;
+    }
+  }
+  fout << Qt::endl;
+  fout << "  //***************" << Qt::endl;
+  fout << "  // plotting " << Qt::endl;
+  fout << "  //***************" << Qt::endl;
+  fout << "  TCanvas *c1 = new TCanvas(\"c1\", \"" << fMacroName.toLatin1().data() << "\", 10, 10, 600, 700);" << Qt::endl;
+  fout << Qt::endl;
+  int idx, r, g, b;
+  PmuppMarker markerObj;
+  for (int i=0; i<fXY.size(); i++) {
+    xLabel = fXY[i].getXlabel();
+    pos = xLabel.indexOf(" (-");
+    xLabel.remove(pos, xLabel.length()-pos);
+    xLabel = substituteDefaultLabels(xLabel);
+    for (int j=0; j<fXY[i].getYlabelSize(); j++) {
+      idx = i*fXY[i].getYlabelSize()+j; // graph number idx
+      markerObj = marker[idx];
+      yLabel = fXY[i].getYlabel(j);
+      pos = yLabel.indexOf(" (-");
+      yLabel.remove(pos, yLabel.length()-pos);
+      yLabel = substituteDefaultLabels(yLabel);
+      snprintf(gLabel, sizeof(gLabel), "g_%d_%d", i, j);
+      if ((i==0) && (j==0)) { // first graph
+        if (idx < marker.size()) {
+          fout << "  " << gLabel << "->SetMarkerStyle(" << markerObj.getMarker() << ");" << Qt::endl;
+          fout << "  " << gLabel << "->SetMarkerSize(" << markerObj.getMarkerSize() << ");" << Qt::endl;
+        } else {
+          fout << "  " << gLabel << "->SetMarkerStyle(20); // bullet" << Qt::endl;
+          fout << "  " << gLabel << "->SetMarkerSize(1.5);" << Qt::endl;
+        }
+        if (idx < color.size()) {
+          color[idx].getRGB(r, g, b);
+          fout << "  " << gLabel << "->SetMarkerColor(TColor::GetColor(" << r << "," << g << "," << b << "));" << Qt::endl;
+          fout << "  " << gLabel << "->SetLineColor(TColor::GetColor(" << r << "," << g << "," << b << "));" << Qt::endl;
+        } else {
+          fout << "  " << gLabel << "->SetMarkerColor(kBlue);" << Qt::endl;
+          fout << "  " << gLabel << "->SetLineColor(kBlue);" << Qt::endl;
+        }
+        fout << "  " << gLabel << "->SetFillColor(kWhite);" << Qt::endl;
+        fout << "  " << gLabel << "->GetXaxis()->SetTitle(\"" << xLabel.toLatin1().data() << "\");" << Qt::endl;
+        fout << "  " << gLabel << "->GetXaxis()->SetTitleSize(0.05);" << Qt::endl;
+        fout << "  " << gLabel << "->GetXaxis()->SetRangeUser(" << 0.95*xMin << ", " << 1.05*xMax << ");" << Qt::endl;
+        fout << "  " << gLabel << "->GetYaxis()->SetTitle(\"" << yLabel.toLatin1().data() << "\");" << Qt::endl;
+        fout << "  " << gLabel << "->GetYaxis()->SetTitleSize(0.05);" << Qt::endl;
+        fout << "  " << gLabel << "->GetYaxis()->SetTitleOffset(1.30);" << Qt::endl;
+        fout << "  " << gLabel << "->GetYaxis()->SetRangeUser(" << 0.95*yMin << ", " << 1.05*yMax << ");" << Qt::endl;
+        fout << "  " << gLabel << "->GetXaxis()->SetDecimals(kTRUE);" << Qt::endl;
+        fout << "  " << gLabel << "->Draw(\"AP\");" << Qt::endl;
+      } else { // consecutive graphs
+        if (idx < marker.size()) {
+          fout << "  " << gLabel << "->SetMarkerStyle(" << markerObj.getMarker() << ");" << Qt::endl;
+          fout << "  " << gLabel << "->SetMarkerSize(" << markerObj.getMarkerSize() << ");" << Qt::endl;
+        } else {
+          fout << "  " << gLabel << "->SetMarkerStyle(" << 21+j << ");" << Qt::endl;
+          fout << "  " << gLabel << "->SetMarkerSize(1.5);" << Qt::endl;
+        }
+        if (idx < color.size()) {
+          color[idx].getRGB(r, g, b);
+          fout << "  " << gLabel << "->SetMarkerColor(TColor::GetColor(" << r << "," << g << "," << b << "));" << Qt::endl;
+          fout << "  " << gLabel << "->SetLineColor(TColor::GetColor(" << r << "," << g << "," << b << "));" << Qt::endl;
+        } else {
+          fout << "  " << gLabel << "->SetMarkerColor(kBlue);" << Qt::endl;
+          fout << "  " << gLabel << "->SetLineColor(kBlue);" << Qt::endl;
+        }
+        fout << "  " << gLabel << "->SetFillColor(kWhite);" << Qt::endl;
+        fout << "  " << gLabel << "->Draw(\"Psame\");" << Qt::endl;
+      }
+    }
+  }
+  fout << "}" << Qt::endl;
+
+  // clear macro name
+  fMacroName = QString("");
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::plot. plot all the requested x-/y-axis settings. It first
+ * prepares all necessary data sets, afterwards is calling mupp_plotter.
+ */
+void PmuppGui::plot()
+{
+  // check if there is something to be plotted
+  if (fXY.size() == 0) {
+    QMessageBox::information(this, "plot", "No parameter list present.");
+    return;
+  }
+
+  // write data file with path name: $HOME/.musrfit/mupp/_mupp_<startUpTime>.dat
+  // where <startUpTime> is the time when mupp has been started.
+  QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+  QString pathName = QString("%1/.musrfit/mupp/_mupp_%2.dat").arg(env.value("HOME")).arg(fDatime);
+
+  int collTag = -1, pos;
+  QString collName("");
+  QString xLabel(""), yLabel("");
+  QVector<double> xx, yy, yyPosErr, yyNegErr;
+  QVector< QVector<double> > yyy, yyyPosErr, yyyNegErr;
+  bool ok;
+
+  QFile file(pathName);
+  if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
+    QMessageBox::critical(this, "ERROR", "Couldn't write necessary temporary file!");
+    return;
+  }
+  QTextStream fout(&file);
+
+  fout << "% path file name: " << pathName << Qt::endl;
+  fout << "% creation time : " << QDateTime::currentDateTime().toString("yyyy.MM.dd - hh:mm:ss") << Qt::endl;
+  fout << "%" << Qt::endl;
+  for (int i=0; i<fXY.size(); i++) {
+    // header info
+    collTag = fXY[i].getCollectionTag();
+    collName = fColList->item(collTag)->text();
+
+    fout << "% ---------" << Qt::endl;
+    fout << "% collName = " << collName << Qt::endl;
+    fout << "% start ---" << Qt::endl;
+
+    // x-label
+    xLabel = fXY[i].getXlabel();
+    pos = xLabel.indexOf(" (-");
+    xLabel.remove(pos, xLabel.length()-pos);
+    // get x-vector
+    xx = getValues(collName, xLabel, ok);
+    if (!ok) {
+      QString msg = QString("Couldn't get x-axis data from '%1', coll: '%2'").arg(xLabel).arg(collName);
+      QMessageBox::critical(this, "**ERROR**", msg);
+      return;
+    }
+
+    xLabel = substituteDefaultLabels(xLabel);
+    fout << "xLabel: " << xLabel << ", ";
+    for (int j=0; j<fXY[i].getYlabelSize()-1; j++) {
+      // get y-label
+      yLabel = fXY[i].getYlabel(j);
+      pos = yLabel.indexOf(" (-");
+      yLabel.remove(pos, yLabel.length()-pos);
+      // get y-vector and errors
+      yy = getValues(collName, yLabel, ok);
+      if (!ok) {
+        QString msg = QString("Couldn't get y-axis data from '%1', coll: '%2'").arg(yLabel).arg(collName);
+        QMessageBox::critical(this, "**ERROR**", msg);
+        return;
+      }
+      yyy.push_back(yy);
+      yyPosErr = getPosErr(collName, yLabel, ok);
+      if (!ok) {
+        QString msg = QString("Couldn't get y-axis pos. error data from '%1', coll: '%2'").arg(yLabel).arg(collName);
+        QMessageBox::critical(this, "**ERROR**", msg);
+        return;
+      }
+      yyyPosErr.push_back(yyPosErr);
+      yyNegErr = getNegErr(collName, yLabel, ok);
+      if (!ok) {
+        QString msg = QString("Couldn't get y-axis neg. error data from '%1', coll: '%2'").arg(yLabel).arg(collName);
+        QMessageBox::critical(this, "**ERROR**", msg);
+        return;
+      }
+      yyyNegErr.push_back(yyNegErr);
+      yLabel = substituteDefaultLabels(yLabel);
+      fout << "yLabel: " << yLabel << ", ";
+    }
+    // get last y-label
+    int idx=fXY[i].getYlabelSize()-1;
+    yLabel = fXY[i].getYlabel(idx);
+    pos = yLabel.indexOf(" (-");
+    yLabel.remove(pos, yLabel.length()-pos);
+    // get y-vector and errors
+    yy = getValues(collName, yLabel, ok);
+    if (!ok) {
+      QString msg = QString("Couldn't get y-axis data from '%1', coll: '%2'").arg(yLabel).arg(collName);
+      QMessageBox::critical(this, "**ERROR**", msg);
+      return;
+    }
+    yyy.push_back(yy);
+    yyPosErr = getPosErr(collName, yLabel, ok);
+    if (!ok) {
+      QString msg = QString("Couldn't get y-axis pos. error data from '%1', coll: '%2'").arg(yLabel).arg(collName);
+      QMessageBox::critical(this, "**ERROR**", msg);
+      return;
+    }
+    yyyPosErr.push_back(yyPosErr);
+    yyNegErr = getNegErr(collName, yLabel, ok);
+    if (!ok) {
+      QString msg = QString("Couldn't get y-axis neg. error data from '%1', coll: '%2'").arg(yLabel).arg(collName);
+      QMessageBox::critical(this, "**ERROR**", msg);
+      return;
+    }
+    yyyNegErr.push_back(yyNegErr);
+
+    yLabel = substituteDefaultLabels(yLabel);
+    fout << "yLabel: " << yLabel << Qt::endl;
+
+    // normalize if wished
+    if (fNormalize) {
+      double max=0.0;
+      for (int k=0; k<yyy.size(); k++) {
+        max=0.0;
+        for (int j=0; j<xx.size(); j++) {
+          if (yyy[k][j] > max)
+            max = yyy[k][j];
+        }
+        for (int j=0; j<xx.size(); j++) {
+          yyy[k][j] /= max;
+          yyyPosErr[k][j] /= max;
+          yyyNegErr[k][j] /= max;
+        }
+      }
+    }
+
+    // data
+    for (int j=0; j<xx.size(); j++) {
+      fout << xx[j] << ", ";
+      for (int k=0; k<yyy.size()-1; k++) {
+        fout << yyy[k][j] << ", " << yyyPosErr[k][j] << ", " << yyyNegErr[k][j] << ", ";
+      }
+      idx = yyy.size()-1;
+      fout << yyy[idx][j] << ", " << yyyPosErr[idx][j] << ", " << yyyNegErr[idx][j];
+      fout << Qt::endl;
+    }
+
+    fout << "% end -----" << Qt::endl;
+
+    // clear collection related vectors
+    yyy.clear();
+    yyyPosErr.clear();
+    yyyNegErr.clear();
+  }
+
+  file.close();
+
+  // get first free mupp instance
+  fMuppInstance = getFirstAvailableMuppInstance();
+
+  // issue a system message to inform to ROOT parameter plotter (rpp) that new data are available
+  key_t key;
+  struct mbuf msg;
+  int flags, msqid;
+
+  // generate the ICP message queue key
+  QString tmpPathName = QString("%1/.musrfit/mupp/_mupp_ftok_%2.dat").arg(env.value("HOME")).arg(fMuppInstance);
+  file.setFileName(tmpPathName);
+  if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
+    QMessageBox::critical(this, "ERROR", "Couldn't write necessary temporary file!");
+    return;
+  }
+  fout.setDevice(&file);
+  fout << QCoreApplication::applicationFilePath().toLatin1().data() << Qt::endl;
+  file.close();
+
+  key = ftok(QCoreApplication::applicationFilePath().toLatin1().data(), fMuppInstance);
+  if (key == -1) {
+    QMessageBox::critical(this, "ERROR", "Couldn't obtain necessary key to install the IPC message queue.");
+    return;
+  }
+
+  // set the necessary IPC message queue flags
+  flags = IPC_CREAT;
+
+  // open the message queue
+  msqid = msgget(key, flags | S_IRUSR | S_IWUSR);
+  if (msqid == -1) {
+    QMessageBox::critical(this, "ERROR", "Couldn't open the IPC message queue.");
+    return;
+  }
+
+  // send message
+  flags = IPC_NOWAIT;
+  msg.mtype = 1;
+  strncpy(msg.mtext, pathName.toLatin1().data(), PMUPP_MAX_MTEXT);
+  if (msgsnd(msqid, &msg, strlen(msg.mtext)+1, flags) == -1) {
+    QMessageBox::critical(this, "ERROR", "Couldn't send the IPC message.");
+    return;
+  }
+
+  // start native ROOT parameter plot application if not already running
+  if (fMuppPlot == 0) { // not running yet
+    startMuppPlot();
+  } else {
+    // check if mupp_plot is still running
+    if (fMuppPlot->state() == QProcess::NotRunning) { // not running hence start it
+      startMuppPlot();
+    }
+  }
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::startMuppPlot start the mupp_plotter
+ */
+void PmuppGui::startMuppPlot()
+{
+  QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+  QString cmd = QString("%1/bin/mupp_plot").arg(MUPP_PREFIX);
+#if defined(Q_OS_DARWIN) || defined(Q_OS_MAC)
+  cmd = QString("/Applications/mupp.app/Contents/MacOS/mupp_plot");
+#endif
+  QString workDir = QString("./");
+  QStringList arg;
+
+  // feed the mupp instance
+  arg << QString("%1").arg(fMuppInstance);
+
+  fMuppPlot = new QProcess(this);
+  if (fMuppPlot == nullptr) {
+    QMessageBox::critical(0, "**ERROR**", "Couldn't invoke QProcess for mupp_plot!");
+    return;
+  }
+
+  // make sure that the system environment variables are properly set
+  env.insert("LD_LIBRARY_PATH", env.value("ROOTSYS") + "/lib:" + env.value("LD_LIBRARY_PATH"));
+  fMuppPlot->setProcessEnvironment(env);
+  fMuppPlot->setWorkingDirectory(workDir);
+  fMuppPlot->start(cmd, arg);
+  if (!fMuppPlot->waitForStarted()) {
+    // error handling
+    QString msg(tr("Could not execute the output command: ")+cmd);
+    QMessageBox::critical( 0,
+                          tr("Fatal error"),
+                          msg,
+                          tr("Quit") );
+    return;
+  }
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::handleCmds. Handles the commands form the command line.
+ */
+void PmuppGui::handleCmds()
+{
+  QString cmd = fCmdLine->text();
+
+  fCmdLine->setText("$ ");
+
+  cmd = cmd.trimmed();
+  cmd = cmd.remove("$ ");
+  cmd = cmd.trimmed();
+
+  if (!cmd.compare("exit", Qt::CaseInsensitive) || !cmd.compare("quit", Qt::CaseInsensitive)) {
+    aboutToQuit();
+  } else if (!cmd.compare("load", Qt::CaseInsensitive) || !cmd.compare("open", Qt::CaseInsensitive)) {
+    fileOpen();
+  } else if (!cmd.compare("dump collections", Qt::CaseInsensitive)) {
+    toolDumpCollections();
+  } else if (!cmd.compare("dump XY", Qt::CaseInsensitive)) {
+    toolDumpXY();
+  } else if (!cmd.compare("refresh", Qt::CaseInsensitive)) {
+    refresh();
+  } else if (!cmd.compare("plot", Qt::CaseInsensitive)) {
+    plot();
+  } else if (cmd.startsWith("macro")) { // cmd: macro <fln>
+    QStringList tok = cmd.split(" ", Qt::SkipEmptyParts);
+    if (tok.size() != 2) {
+      QMessageBox::critical(this, "ERROR", QString("wrong macro cmd: %1.\nPlease check the help.").arg(cmd));
+      return;
+    }
+    fMacroName = tok[1];
+    createMacro();
+  } else if (cmd.startsWith("path")) { // cmd: path <macro_path>
+    QMessageBox::information(0, "INFO", "set's eventually the path for the macros to be saved.");
+    // will set the path to where to save the macro
+    QStringList tok = cmd.split(" ", Qt::SkipEmptyParts);
+    if (tok.size() != 2) {
+      QMessageBox::critical(this, "ERROR", QString("wrong path cmd: %1.\nPlease check the help.").arg(cmd));
+      return;
+    }
+    // replace "~" -> "$HOME"
+    fMacroPath = tok[1].replace("~", "$HOME");
+    // if environment variable is found -> expand it
+    QString envVar=fMacroPath;
+    if (envVar.startsWith("$")) {
+      envVar.remove("$");
+      int pos = envVar.indexOf("/");
+      if (pos > 0)
+        envVar.remove(pos, fMacroPath.length()-pos);
+      QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+      QString fullPath = env.value(envVar); // get environment variable value if present, otherwise "" is returned
+      if (fullPath.isEmpty()) {
+        fMacroPath = "";
+        QMessageBox::critical(0, "ERROR", QString("Environment variable '%1' not present. Typo?!").arg(envVar.prepend("$")));
+        return;
+      }
+      fMacroPath.replace(envVar.prepend("$"), fullPath);
+    }
+  } else if (cmd.startsWith("select") || cmd.startsWith("sc")) {
+    selectCollection(cmd);
+  } else if (cmd.startsWith("x")) {
+    QStringList tok = cmd.split(" ", Qt::SkipEmptyParts);
+    if (tok.size() > 1)
+      addX(tok[1]);
+    else
+      QMessageBox::critical(0, "ERROR", QString("Found command 'x' without variable."));
+  } else if (cmd.startsWith("y")) {
+    QStringList tok = cmd.split(" ", Qt::SkipEmptyParts);
+    if (tok.size() > 1)
+      addY(tok[1]);
+    else
+      QMessageBox::critical(0, "ERROR", QString("Found command 'y' without variable."));
+  } else if (cmd.startsWith("ditto")) {
+    addDitto();
+  } else if (cmd.startsWith("rmx")) {
+    QStringList tok = cmd.split(" ", Qt::SkipEmptyParts);
+    if (tok.size() > 1)
+      removeX(tok[1]);
+    else
+      QMessageBox::critical(0, "ERROR", QString("Found command 'rmx' without variable."));
+  } else if (cmd.startsWith("rmy")) {
+    QStringList tok = cmd.split(" ", Qt::SkipEmptyParts);
+    if (tok.size() > 1)
+      removeY(tok[1]);
+    else
+      QMessageBox::critical(0, "ERROR", QString("Found command 'rmy' without variable."));
+  } else if (cmd.startsWith("norm")) {
+    QStringList tok = cmd.split(" ", Qt::SkipEmptyParts);
+    if (tok.size() != 2) {
+      QMessageBox::critical(this, "**ERROR**", "found wrong norm cmd, will ignore it.");
+      return;
+    }
+    if (!tok[1].trimmed().compare("true", Qt::CaseInsensitive)) {
+      fNormalizeAction->setChecked(true);
+    } else if (!tok[1].trimmed().compare("false", Qt::CaseInsensitive)) {
+      fNormalizeAction->setChecked(false);
+    } else {
+      QMessageBox::critical(this, "**ERROR**", "found wrong norm cmd, will ignore it.");
+      return;
+    }
+  } else if (cmd.startsWith("add var")) {
+    addVar();
+  } else if (cmd.startsWith("flush")) {
+    fCmdHistory.clear();
+    fCmdLine->setText("$ ");
+    fCmdLineHistory->clear();
+    fCmdLineHistory->insertPlainText("$");
+  } else if (cmd.startsWith("help")) {
+    helpCmds();
+  } else {
+    helpCmds();
+  }
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::handleNewData. Handle new data from the fParamDataHandler.
+ */
+void PmuppGui::handleNewData()
+{
+  // update collection list view
+  updateCollectionList();
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::updateCollectionList. update collection list.
+ */
+void PmuppGui::updateCollectionList()
+{
+  // check if collection is already present
+  bool valid=false;
+  PmuppCollection coll;
+  for (int i=0; i<fParamDataHandler->GetNoOfCollections(); i++) {
+    coll = fParamDataHandler->GetCollection(i, valid);
+    if (isNewCollection(coll)) {
+      fColList->addItem(coll.GetName());
+    }
+  }
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::updateParamList. Update parameter list of the selected
+ * collection defined by currentRow. Check also for variables.
+ * @param currentRow is the index of the selected collection.
+ */
+void PmuppGui::updateParamList(int currentRow)
+{
+  QListWidgetItem *item = fColList->item(currentRow);
+  if (item == 0) {
+    fParamList->clear();
+    return;
+  }
+
+  // update parameter list widget
+  bool valid = false;
+  PmuppCollection coll = fParamDataHandler->GetCollection(item->text(), valid);
+  if (!valid) {
+    return;
+  }
+
+  PmuppRun run = coll.GetRun(0);
+
+  fParamList->clear();
+  for (int i=0; i<run.GetNoOfParam(); i++) {
+    fParamList->insertItem(i, run.GetParam(i).GetName());
+  }
+
+  // check if this collection has defined variables, and if yes add them as well
+  for (int i=0; i<fVarHandler.size(); i++) {
+    if (fVarHandler[i].getCollName() == item->text()) {
+      fParamList->addItem(fVarHandler[i].getVarName());
+    }
+  }
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::updateXYList. Update xy-objects.
+ * @param idx collection index which has been removed
+ */
+void PmuppGui::updateXYList(int idx)
+{
+  // 1st: remove XY with collection index idx from the list
+  for (int i=0; i<fXY.size(); i++) {
+    // since each collection is only once present, the following is good enough
+    if (fXY[i].getCollectionTag() == idx) {
+      fXY.remove(i);
+      break;
+    }
+  }
+
+  // 2nd: re-number the XY list according to the new collections
+  QString str("");
+  int pos=-1;
+  int oldIdx=-1;
+  for (int i=0; i<fXY.size(); i++) {
+    oldIdx = fXY[i].getCollectionTag();
+    if (oldIdx > idx) {
+      // correct collection tag
+      fXY[i].setCollectionTag(oldIdx-1);
+      // correct X label
+      str = fXY[i].getXlabel();
+      pos = str.indexOf("(");
+      str.remove(pos, str.length()-pos);
+      str += QString("(-%1-)").arg(oldIdx-1);
+      fXY[i].setXlabel(str);
+      // correct Y label
+      for (int j=0; j<fXY[i].getYlabelSize(); j++) {
+        str = fXY[i].getYlabel(j);
+        pos = str.indexOf("(");
+        str.remove(pos, str.length()-pos);
+        str += QString("(-%1-)").arg(oldIdx-1);
+        fXY[i].setYlabel(j, str);
+      }
+    }
+  }
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::updateXYListGui. Update x-axis settings. This is needed
+ * after a remove or refresh.
+ */
+void PmuppGui::updateXYListGui()
+{
+  fViewX->clear();
+
+  for (int i=0; i<fXY.size(); i++) {
+    fViewX->addItem(fXY[i].getXlabel());
+  }
+
+  fViewX->setCurrentRow(0);
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::isNewCollection. Check if coll is a new collection.
+ * @param coll collection which needs to be searched for.
+ * @return true if present, flase otherwise.
+ */
+bool PmuppGui::isNewCollection(PmuppCollection &coll)
+{
+  for (int i=0; i<fColList->count(); i++)
+    if (fColList->item(i)->text() == coll.GetName())
+      return false;
+  return true;
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::editCollName allow to edit the collection name.
+ * @param item from the listWidget.
+ */
+void PmuppGui::editCollName(QListWidgetItem *item)
+{
+  bool ok;
+  QString oldName = item->text();
+  QString newName = QInputDialog::getText(this, "Change Collection Name", "Collection Name",
+                                          QLineEdit::Normal, oldName, &ok);
+  if (ok && !newName.isEmpty()) {
+    item->setText(newName);
+    fParamDataHandler->GetCollection(oldName)->SetName(newName);
+    fParamDataHandler->Dump();
+  }
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::getMinMax. Get minimum and maximum from data set.
+ * @param data data set
+ * @param min minimum of data
+ * @param max maximum of data
+ */
+void PmuppGui::getMinMax(QVector<double> &data, double &min, double &max)
+{
+  for (int i=0; i<data.size(); i++) {
+    if (data[i] < min)
+      min = data[i];
+    if (data[i] > max)
+      max = data[i];
+  }
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::substituteDefaultLabels. Substitutes default labels, like
+ * sigma -> #sigma to make the plot nicer.
+ * @param label to be checked to prettify.
+ * @return prettified label string.
+ */
+QString PmuppGui::substituteDefaultLabels(QString label)
+{
+  QString result(label);
+
+  if (label == "dataT") {
+    result = QString("T (K)");
+  } else if (label == "dataB") {
+    result = QString("B (G)");
+  } else if (label == "dataE") {
+    result =QString("E (keV)");
+  } else if (!label.compare("sigma", Qt::CaseInsensitive)) {
+    if (fNormalize) {
+      result = QString("#sigma/max(#sigma)");
+    } else {
+      result = QString("#sigma (1/#mus)");
+    }
+  } else if (!label.compare("lambda", Qt::CaseInsensitive)) {
+    if (fNormalize) {
+      result = QString("#lambda/max(#lambda)");
+    } else {
+      result = QString("#lambda (1/#mus)");
+    }
+  } else if (!label.compare("alpha_LR", Qt::CaseInsensitive)) {
+    if (fNormalize) {
+      result = QString("#alpha_{LR}/max(#alpha_{LR})");
+    } else {
+      result = QString("#alpha_{LR}");
+    }
+  } else if (!label.compare("alpha_TB", Qt::CaseInsensitive)) {
+    if (fNormalize) {
+      result = QString("#alpha_{TB}/max(#alpha_{TB})");
+    } else {
+      result = QString("#alpha_{TB}");
+    }
+  } else {
+    if (fNormalize) {
+      result = QString("Normalized ");
+      result += label;
+    }
+  }
+
+  return result;
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::selectCollection. Called from the command line. It allows to
+ * select a collection.
+ * @param cmd string to select a collection
+ */
+void PmuppGui::selectCollection(QString cmd)
+{
+  bool ok;
+  int ival, pos=-1;
+  QString str = cmd;
+  if (cmd.contains("select")) {
+    str.remove("select");
+    str = str.trimmed();
+  } else if (cmd.contains("sc")) {
+    pos = cmd.indexOf("sc");
+    str.remove(0, pos+2);
+    str = str.trimmed();
+  } else {
+    return;
+  }
+
+  ival = str.toInt(&ok);
+  if (ok) { // it is a number
+    if (ival < fColList->count())
+      fColList->setCurrentRow(ival);
+    else
+      QMessageBox::critical(this, "**ERROR**",
+            QString("Found Row Selection %1 which is > #Selections=%2").arg(ival).arg(fColList->count()));
+  } else { // assume it is a collection name
+    for (int i=0; i<fColList->count(); i++) {
+      if (fColList->item(i)->text() == str) {
+        fColList->setCurrentRow(i);
+        break;
+      }
+    }
+  }
+}
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief PmuppGui::getFirstAvailableMuppInstance. Get the first free mupp
+ * instance of the mupp <-> mupp_plotter ICP message queue
+ * @return the first free instance.
+ */
+uint PmuppGui::getFirstAvailableMuppInstance()
+{
+  // if fMuppInstance already set, i.e. != -1, do nothing
+  if (fMuppInstance != -1)
+    return fMuppInstance;
+
+  QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+  QString fln("");
+  uint i=0;
+  for (i=0; i<256; i++) {
+    fln = QString("%1/.musrfit/mupp/_mupp_ftok_%2.dat").arg(env.value("HOME")).arg(i);
+    if (!QFile::exists(fln))
+      break;
+  }
+
+  return i;
+}
+
diff --git a/src/musredit_qt6/mupp/PmuppGui.h b/src/musredit_qt6/mupp/PmuppGui.h
new file mode 100644
index 00000000..e4216e88
--- /dev/null
+++ b/src/musredit_qt6/mupp/PmuppGui.h
@@ -0,0 +1,270 @@
+/***************************************************************************
+
+  PmuppGui.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PMUPPGUI_H_
+#define _PMUPPGUI_H_
+
+#include <QMainWindow>
+#include <QVector>
+#include <QString>
+#include <QStringList>
+#include <QWidget>
+#include <QBoxLayout>
+#include <QGridLayout>
+#include <QLabel>
+#include <QSplitter>
+#include <QListWidget>
+#include <QPushButton>
+#include <QLineEdit>
+#include <QPlainTextEdit>
+#include <QEvent>
+#include <QProcess>
+#include <QDialog>
+
+#include "PVarHandler.h"
+#include "PVarDialog.h"
+#include "PmuppAdmin.h"
+#include "Pmupp.h"
+#include "mupp.h"
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief The PmuppXY class.
+ */
+class PmuppXY
+{
+public:
+  PmuppXY() { init(); }
+
+  void setCollectionTag(int tag) { fCollectionTag = tag; }
+  void setXlabel(QString str) { fXlabel = str; }
+  void addYlabel(QString str) { fYlabel.push_back(str); }
+  void setYlabel(int idx, QString str);
+  void removeYlabel(int idx);
+  void removeYlabel(QString str);
+
+  int getCollectionTag() { return fCollectionTag; }
+  QString getXlabel() { return fXlabel; }
+  int getXlabelIdx();
+  int getYlabelSize() { return fYlabel.size(); }
+  QString getYlabel(int idx);
+  int getYlabelIdx(int idx);
+  QVector<QString> getYlabels() { return fYlabel; }
+
+private:
+  int fCollectionTag;
+  QString fXlabel;
+  QVector<QString> fYlabel;
+
+  void init();
+};
+
+//-----------------------------------------------------------------------------
+/**
+ * @brief The PVarErrorDialog class. It is used to display error messages from
+ * the variable parsing.
+ */
+class PVarErrorDialog : public QDialog
+{
+  Q_OBJECT
+
+  public:
+    PVarErrorDialog(QString errMsg);
+
+  private:
+    QPlainTextEdit *fErrMsg;
+    QPushButton *fOK;
+};
+
+//-----------------------------------------------------------------------------
+// Layout Scheme of PmuppGui:
+// |--------------------------------------------------------------------|
+// | Main                                                               |
+// | |----------------------------------------------------------------| |
+// | | Top                                                            | |
+// | | |----------------------------| |-----------------------------| | |
+// | | | Grid Left (2 cols, 3 rows) | | Grid Right (2 cols, 6 rows) | | |
+// | | | +++++++++                  | | ++++++++++                  | | |
+// | | |                            | |                             | | |
+// | | |----------------------------| |-----------------------------| | |
+// | |----------------------------------------------------------------| |
+// |                                                                    |
+// | |----------------------------------------------------------------| |
+// | | History                                                        | |
+// | |----------------------------------------------------------------| |
+// | | Cmd                                                            | |
+// | |----------------------------------------------------------------| |
+// ----------------------------------------------------------------------
+//
+// Grid Left  contains: fColLabel, fColParamSplitter,
+//                      fRemoveCollection, fRefreshCollection
+// Grid Right contains: f(X,Y)axisLabel, fView(X,Y), fAdd(X,Y), fRemove(X,Y),
+//                      fAddDitto, fPlot
+//-----------------------------------------------------------------------------
+class PmuppGui : public QMainWindow
+{
+  Q_OBJECT
+
+public:
+  PmuppGui(QStringList fln);
+  virtual ~PmuppGui();
+
+public slots:
+  void aboutToQuit();
+  void fileOpen();
+  void fileOpenRecent();
+  void fileExit();
+
+  void toolDumpCollections();
+  void toolDumpXY();
+  void addVar();
+  void normalize();
+
+  void helpCmds();
+  void helpAbout();
+  void helpAboutQt();
+
+protected:
+  bool eventFilter(QObject *o, QEvent *e);
+
+private:
+  enum EAxis {kXaxis, kYaxis};
+
+  PmuppAdmin *fAdmin;
+  bool fDarkTheme;
+  bool fDarkToolBarIcon;
+  bool fNormalize;
+
+  qint64 fDatime;
+  uint fMuppInstance;
+
+  PParamDataHandler *fParamDataHandler;
+  QVector<PmuppXY> fXY;
+  QVector<PVarHandler> fVarHandler;
+
+  QString fMacroPath;
+  QString fMacroName;
+
+  QWidget     *fCentralWidget;
+
+  QMenu *fRecentFilesMenu;   ///< recent file menu
+  QAction *fRecentFilesAction[MAX_RECENT_FILES]; ///< array of the recent file actions
+  QAction *fNormalizeAction;
+
+  QBoxLayout  *fBoxLayout_Main;     // top->bottom (0)
+  QBoxLayout  *fBoxLayout_Top;      // left->right (1)
+  QGridLayout *fGridLayout_Left;    // 2 columns, 3 rows
+  QGridLayout *fGridLayout_Right;   // 2 columns, 6 rows
+  QBoxLayout  *fBoxLayout_Cmd;      // left->right (1)
+
+  QLabel      *fColLabel;
+  QSplitter   *fColParamSplitter;
+  QListWidget *fColList;
+  QListWidget *fParamList;
+  QPushButton *fRemoveCollection;
+  QPushButton *fRefreshCollection;
+  QLabel      *fXaxisLabel;
+  QLabel      *fYaxisLabel;
+  QListWidget *fViewX;
+  QListWidget *fViewY;
+  QPushButton *fAddX;
+  QPushButton *fAddY;
+  QPushButton *fAddDitto;
+  QPushButton *fRemoveX;
+  QPushButton *fRemoveY;
+  QPushButton *fPlot;
+  QSplitter   *fCmdSplitter;
+  QPlainTextEdit *fCmdLineHistory;
+  QLineEdit   *fCmdLine;
+  QPushButton *fExitButton;
+
+  QVector<QString> fCmdHistory; ///< command history buffer
+
+  PVarDialog *fVarDlg; ///< variable dialog
+
+  QProcess *fMuppPlot; ///< mupp plotter
+
+  void setupFileActions();
+  void setupToolActions();
+  void setupHelpActions();
+
+  void getTheme();
+
+  void fillRecentFiles();
+
+  void readCmdHistory();
+  void writeCmdHistory();
+
+  bool isNewCollection(PmuppCollection &coll);
+  int  getXlabelIndex(QString label);
+  void getMinMax(QVector<double> &data, double &min, double &max);
+  QString substituteDefaultLabels(QString label);
+  void selectCollection(QString cmd);
+  uint getFirstAvailableMuppInstance();
+
+  void updateCollectionList();
+  void updateXYList(int idx);
+  void updateXYListGui();
+  bool findValue(PmuppRun &run, EAxis tag);
+  bool allXYEqual();
+  bool indexAlreadyPresent(int idx);
+  void replaceIndex(PmuppXY &data, const int idx);
+
+  void startMuppPlot();
+
+  void parseErrMsgDlg();
+  QStringList getVarNames(QString parseStr);
+  QVector<double> getValues(QString collName, QString paramName, bool &ok);
+  QVector<double> getPosErr(QString collName, QString paramName, bool &ok);
+  QVector<double> getNegErr(QString collName, QString paramName, bool &ok);
+
+private slots:
+  void addDitto();
+  void addX(QString param="");
+  void addY(QString param="");
+  void createMacro();
+  void handleCmds();
+  void plot();
+  void refresh();
+  void remove();
+  void removeX(QString param="");
+  void removeY(QString param="");
+
+  void handleNewData();
+  void updateParamList(int currentRow);
+  void editCollName(QListWidgetItem *item);
+  void dropOnViewX(QListWidgetItem *item);
+  void dropOnViewY(QListWidgetItem *item);
+  void refreshY();
+
+  void check(QString varStr, QVector<int> idx);
+  void add(QString varStr, QVector<int> idx);
+};
+
+#endif // _PMUPPGUI_H_
diff --git a/src/musredit_qt6/mupp/PmuppScript.cpp b/src/musredit_qt6/mupp/PmuppScript.cpp
new file mode 100644
index 00000000..0c3cc727
--- /dev/null
+++ b/src/musredit_qt6/mupp/PmuppScript.cpp
@@ -0,0 +1,980 @@
+/***************************************************************************
+
+  PmuppScript.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <cmath>
+#include <iostream>
+
+#include <QProcessEnvironment>
+#include <QString>
+#include <QFile>
+#include <QTextStream>
+#include <QDateTime>
+#include <QProcess>
+
+#include <QtGlobal> // Q_ASSERT
+
+#include "PmuppScript.h"
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppScript::PmuppScript. Ctor
+ * @param script source
+ */
+PmuppScript::PmuppScript(QStringList script) :
+  fScript(script)
+{
+  fParamDataHandler = 0;
+  fLoadPath = QString("./");
+  fSavePath = QString("./");
+  fSelected = -2; // nothing selected
+  fNorm = false;
+
+  fAdmin = new PmuppAdmin();
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppScript::~PmuppScript. Dtor
+ */
+PmuppScript::~PmuppScript()
+{
+  if (fParamDataHandler) {
+    delete fParamDataHandler;
+    fParamDataHandler = 0;
+  }
+
+  if (fAdmin) {
+    delete fAdmin;
+    fAdmin = 0;
+  }
+}
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppScript::executeScript. Handles the script commands.
+ * @return 0 on success.
+ */
+int PmuppScript::executeScript()
+{
+  fParamDataHandler = new PParamDataHandler();
+  if (fParamDataHandler == 0) {
+    std::cerr << std::endl << "**ERROR** couldn't invoke data handler ..." << std::endl << std::endl;
+    return -1;
+  }
+
+  QString cmd;
+  int status;
+  for (int i=0; i<fScript.size(); i++) {
+    cmd = fScript.at(i);
+    if (cmd.startsWith("loadPath")) {
+      setLoadPath(cmd);
+    } else if (cmd.startsWith("savePath")) {
+      setSavePath(cmd);
+    } else if (cmd.startsWith("load ")) {
+      status = loadCollection(cmd);
+    } else if (cmd.startsWith("selectAll")) {
+      status = selectAll();
+    } else if (cmd.startsWith("select ")) {
+      status = select(cmd);
+    } else if (cmd.startsWith("x")) {
+      status = addX(cmd);
+    } else if (cmd.startsWith("y")) {
+      status = addY(cmd);
+    } else if (cmd.startsWith("norm")) {
+      fNorm = true;
+    } else if (cmd.startsWith("plot")) {
+      status = plot(cmd);
+    } else if (cmd.startsWith("macro")) {
+      status = macro(cmd);
+    } else if (cmd.startsWith("var")) {
+      status = var_cmd(cmd);
+    } else if (cmd.startsWith("col")) {
+      // nothing to be done here, since var handles it internally
+    } else {
+      std::cerr << "**ERROR** found unkown script command '" << cmd.toLatin1().constData() << "'." << std::endl << std::endl;
+      status = -2;
+    }
+    // check for errors
+    if (status != 0) {
+      emit finished();
+      return status;
+    }
+  }
+
+  emit finished();
+
+  return 0;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppScript::setLoadPath. Sets the load path (where to look for input
+ * data.
+ * @param cmd set load path command string.
+ */
+void PmuppScript::setLoadPath(const QString cmd)
+{
+  QString str = cmd;
+  QStringList tok;
+
+  // remove command from string
+  str = str.remove("loadPath ");
+
+  // tokenize path string
+  tok = str.split("/", Qt::SkipEmptyParts);
+
+  // check if there is a bash variable which needs to be resolved
+  QProcessEnvironment procEnv = QProcessEnvironment::systemEnvironment();
+  QString path = QString("");
+  for (int i=0; i<tok.size(); i++) {
+    str = tok.at(i);
+    if (str.startsWith("$")) {
+      str = str.remove("$");
+      QString var = procEnv.value(str, "");
+      path += var + "/";
+    } else {
+      path += str + "/";
+    }
+  }
+
+  fLoadPath = path;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppScript::setSavePath. Sets the save path (where to save the output
+ * files.
+ * @param cmd save path command string.
+ */
+void PmuppScript::setSavePath(const QString cmd)
+{
+  QString str = cmd;
+  QStringList tok;
+
+  // remove command from string
+  str = str.remove("savePath ");
+
+  // tokenize path string
+  tok = str.split("/", Qt::SkipEmptyParts);
+
+  // check if there is a bash variable which needs to be resolved
+  QProcessEnvironment procEnv = QProcessEnvironment::systemEnvironment();
+  QString path = QString("");
+  for (int i=0; i<tok.size(); i++) {
+    str = tok.at(i);
+    if (str.startsWith("$")) {
+      str = str.remove("$");
+      QString var = procEnv.value(str, "");
+      path += var + "/";
+    } else {
+      path += str + "/";
+    }
+  }
+
+  fSavePath = path;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppScript::loadCollection. Load collection command
+ * @param str load collection command string
+ * @return 0 on success.
+ */
+int PmuppScript::loadCollection(const QString str)
+{
+  QString fln = str;
+  fln = fln.remove("load ");
+  fln = fln.trimmed();
+  fln = fln.prepend(fLoadPath);
+
+  QStringList flnList;
+  flnList << fln;
+
+  QString errorMsg("");
+  fParamDataHandler->ReadParamFile(flnList, errorMsg);
+
+  return 0;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppScript::select. Select collection command.
+ * @param str selection command string
+ * @return 0 on success
+ */
+int PmuppScript::select(const QString str)
+{
+  QString cmd = str;
+  QStringList tok = cmd.split(' ', Qt::SkipEmptyParts);
+  if (tok.size() != 2) {
+    std::cerr << std::endl << "**ERROR** wrong 'select' command syntax." << std::endl << std::endl;
+    return -1;
+  }
+
+  bool ok;
+  int ival = tok[1].toInt(&ok);
+  if (ok) { // collection index given
+    if (ival >= fParamDataHandler->GetNoOfCollections()) {
+      std::cerr << std::endl << "**ERROR** try to select a collection with index " << ival << ", which is >= # collections (" << fParamDataHandler->GetNoOfCollections() << ")." << std::endl << std::endl;
+      return -2;
+    }
+    fSelected = ival;
+  } else { // assume that a collection name is given
+    ival = fParamDataHandler->GetCollectionIndex(tok[1]);
+    if (ival == -1) {
+      std::cerr << std::endl << "**ERROR** couldn't find collection '" << tok[1].toLatin1().constData() << "'." << std::endl << std::endl;
+      return -3;
+    }
+    if (ival >= fParamDataHandler->GetNoOfCollections()) {
+      std::cerr << std::endl << "**ERROR** try to select a collection with index " << ival << ", which is >= # collections (" << fParamDataHandler->GetNoOfCollections() << ")." << std::endl << std::endl;
+      return -2;
+    }
+    fSelected = ival;
+  }
+
+  return 0;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppScript::selectAll. Select all collections
+ * @return 0 on success
+ */
+int PmuppScript::selectAll()
+{
+  int noColl = fParamDataHandler->GetNoOfCollections();
+  if ( noColl > 0) {
+    fSelected = -1; // all collections are selected
+  } else {
+    std::cerr << std::endl << "**ERROR** no collections present, hence it is not possible to select them." << std::endl << std::endl;
+    return -1;
+  }
+
+  return 0;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppScript::addX. Add label to x-axis
+ * @param str label string
+ * @return 0 on success
+ */
+int PmuppScript::addX(const QString str)
+{
+  QString cmd = str, label;
+  QStringList tok = cmd.split(' ', Qt::SkipEmptyParts);
+
+  if (tok.size() != 2) {
+    std::cerr << std::endl << "**ERROR** in addX: number of tokens missmatch." << std::endl << std::endl;
+    return -1;
+  }
+  label = tok[1].trimmed();
+
+  PmuppCollection *coll=0;
+  if (fSelected == -2) { // no selection -> error
+    std::cerr << std::endl << "**ERROR** in addX. addX called without previous 'select' command." << std::endl << std::endl;
+    return -2;
+  } else if (fSelected == -1) { // i.e. select ALL
+    // clean up plot info first
+    fPlotInfo.clear();
+
+    // make sure that label is found in ALL collections, or in variables
+    // first check collections
+    bool foundInColl(true), foundInVar(true);
+    QString collName("");
+    for (int i=0; i<fParamDataHandler->GetNoOfCollections(); i++) {
+      coll = fParamDataHandler->GetCollection(i);
+      if (!foundLabel(coll, label)) { // label not found
+        foundInColl = false;
+        collName = coll->GetName();
+        break;
+      }
+    }
+    // second check variables
+    if (!foundVariable(label)) { // label not found
+      foundInVar = false;
+    }
+    // make sure label(s) have been found
+    if (!foundInColl && !foundInVar) { // not all labels found, neither in collection nor variables.
+      std::cerr << std::endl << "**ERROR** couldn't find '" << label.toLatin1().constData() << "' in collection '" << collName.toLatin1().constData() << "'," << std::endl;
+      std::cerr << "          nor is it a defined variable" << std::endl << std::endl;
+      return -4;
+    }
+
+    // resize fPlotInfo to the number of selections
+    fPlotInfo.resize(fParamDataHandler->GetNoOfCollections());
+
+    // feed plot info
+    for (int i=0; i<fPlotInfo.size(); i++) {
+      fPlotInfo[i].collIdx = i;
+      fPlotInfo[i].xLabel = label;
+    }
+  } else { // a specific selection
+    // check that label is found in the selected collection, or in variables
+    coll = fParamDataHandler->GetCollection(fSelected);
+    if (coll == 0) {
+      std::cerr << std::endl << "**ERROR** in addX: selected collection couldn't be found ..." << std::endl << std::endl;
+      return -3;
+    }
+    // first check collection
+    bool foundInColl(true), foundInVar(true);
+    QString collName("");
+    if (!foundLabel(coll, label)) { // label not found
+      foundInColl = false;
+      collName = coll->GetName();
+    }
+    // second check variables
+    if (!foundVariable(label)) { // label not found
+      foundInVar = false;
+    }
+    // make sure label(s) have been found
+    if (!foundInColl && !foundInVar) { // not all labels found, neither in collection nor variables.
+      std::cerr << std::endl << "**ERROR** couldn't find '" << label.toLatin1().constData() << "' in collection '" << collName.toLatin1().constData() << "'," << std::endl;
+      std::cerr << "          nor is it a defined variable" << std::endl << std::endl;
+      return -4;
+    }
+
+    // feed plot entry
+    fPlotEntry.collIdx = fSelected;
+    fPlotEntry.xLabel = label;
+  }
+
+  return 0;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppScript::addY. Add label to y-axis.
+ * @param str label string
+ * @return 0 on success
+ */
+int PmuppScript::addY(const QString str)
+{
+  QString cmd = str;
+  QVector<QString> label;
+  QStringList tok = cmd.split(' ', Qt::SkipEmptyParts);
+
+  if (tok.size() < 2) {
+    std::cerr << std::endl << "**ERROR** in addY: number of tokens < 2." << std::endl << std::endl;
+    return -1;
+  }
+  // collect all potential labels
+  for (int i=1; i<tok.size(); i++)
+    label.push_back(tok[i].trimmed());
+
+  PmuppCollection *coll=0;
+  if (fSelected == -2) { // no selection -> error
+    std::cerr << std::endl << "**ERROR** in addY. addY called without previous 'select' command." << std::endl << std::endl;
+    return -2;
+  } else if (fSelected == -1) { // i.e. select ALL
+    // make sure that label(s) is/are found in ALL collections, or in variables
+    // first check collections
+    bool foundInColl(true), foundInVar(true);
+    int idx = -1;
+    QString collName("");
+    for (int i=0; i<fParamDataHandler->GetNoOfCollections(); i++) {
+      coll = fParamDataHandler->GetCollection(i);
+      for (int j=0; j<label.size(); j++) {
+        if (!foundLabel(coll, label[j])) { // label not found
+          foundInColl = false;
+          collName = coll->GetName();
+          idx = j;
+          break;
+        }
+      }
+    }
+    // second check variables
+    for (int i=0; i<label.size(); i++) {
+      if (!foundVariable(label[i])) { // label not found
+        foundInVar = false;
+        idx = i;
+        break;
+      }
+    }
+    // make sure label(s) have been found
+    if (!foundInColl && !foundInVar) { // not all labels found, neither in collection nor variables.
+      std::cerr << std::endl << "**ERROR** couldn't find '" << label[idx].toLatin1().constData() << "' in collection '" << collName.toLatin1().constData() << "'," << std::endl;
+      std::cerr << "          nor is it a defined variable" << std::endl << std::endl;
+      return -4;
+    }
+
+    // feed plot info with y-label(s)
+    for (int i=0; i<fPlotInfo.size(); i++) {
+      fPlotInfo[i].yLabel = label;
+    }
+  } else { // a specific selection
+    // clear yLabel
+    fPlotEntry.yLabel.clear();
+
+    // check that label is found in the selected collection, or in the variables
+    coll = fParamDataHandler->GetCollection(fSelected);
+    if (coll == 0) {
+      std::cerr << std::endl << "**ERROR** in addY: selected collection couldn't be found ..." << std::endl << std::endl;
+      return -3;
+    }
+
+    // first check specific collection
+    bool foundInColl(true), foundInVar(true);
+    int idx = -1;
+    QString collName("");
+    for (int i=0; i<label.size(); i++) {
+      if (!foundLabel(coll, label[i])) { // label not found
+        foundInColl = false;
+        collName = coll->GetName();
+        idx = i;
+        break;
+      }
+    }
+    // second check variables
+    for (int i=0; i<label.size(); i++) {
+      if (!foundVariable(label[i])) { // label not found
+        foundInVar = false;
+        idx = i;
+        break;
+      }
+    }
+    // make sure label(s) have been found
+    if (!foundInColl && !foundInVar) { // not all labels found, neither in collection nor variables.
+      std::cerr << std::endl << "**ERROR** couldn't find '" << label[idx].toLatin1().constData() << "' in collection '" << collName.toLatin1().constData() << "'," << std::endl;
+      std::cerr << "          nor is it a defined variable" << std::endl << std::endl;
+      return -4;
+    }
+
+    fPlotEntry.yLabel = label;
+
+    // add plot entry
+    fPlotInfo.push_back(fPlotEntry);
+  }
+
+
+  return 0;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppScript::plot. Create root macro and feed it to root in the bash mode.
+ * @param str plot script command string
+ * @return 0 on success
+ */
+int PmuppScript::plot(const QString str)
+{
+  QString cmd = str;
+  QStringList tok = cmd.split(' ', Qt::SkipEmptyParts);
+  if (tok.size() != 2) {
+    std::cerr << std::endl << "**ERROR** in plot: number of tokens != 2." << std::endl << std::endl;
+    return -1;
+  }
+  QString flnOut = fSavePath + tok[1];
+  QString macroOut = fSavePath + "__out.C";
+
+  if (macro(QString("macro " + macroOut), flnOut) != 0) {
+    std::cerr << std::endl << "**ERROR** temporary macro generation failed." << std::endl << std::endl;
+    return -1;
+  }
+
+  // call root via batch
+  QProcess *proc = new QProcess(this);
+  if (proc == nullptr) {
+    std::cerr << std::endl << "**ERROR** couldn't invoke root.exe in batch mode." << std::endl << std::endl;
+    return -2;
+  }
+
+  // make sure that the system environment variables are properly set
+  QString exec_cmd = "root.exe";
+  QStringList arg;
+  arg << "-b";
+  arg << macroOut;
+  arg << "-q";
+
+  QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+  env.insert("LD_LIBRARY_PATH", env.value("ROOTSYS") + "/lib:" + env.value("LD_LIBRARY_PATH"));
+  proc->setProcessEnvironment(env);
+  proc->setWorkingDirectory(fSavePath);
+  proc->start(exec_cmd, arg);
+  if (!proc->waitForStarted()) {
+    std::cerr << std::endl << "**ERROR** Could not execute the output command: " << exec_cmd.toLatin1().constData() << std::endl << std::endl;
+    QFile::remove(macroOut);
+    return -3;
+  }
+  proc->waitForFinished();
+
+  QFile::remove(macroOut);
+
+  return 0;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppScript::macro. Create a root macro
+ * @param str macro string command string
+ * @param plotFln plot file name. Depending on the extension (*.png, *.pdf, ...)
+ * the given a file will be created.
+ * @return 0 on success
+ */
+int PmuppScript::macro(const QString str, const QString plotFln)
+{
+  QVector<PmuppMarker> marker = fAdmin->getMarkers();
+  QVector<PmuppColor> color = fAdmin->getColors();
+
+  QString cmd = str;
+  QStringList tok = cmd.split(' ', Qt::SkipEmptyParts);
+  if (tok.size() != 2) {
+    std::cerr << std::endl << "**ERROR** macro command with wrong number of arguments (" << tok.size() << ")." << std::endl << std::endl;
+    return -1;
+  }
+  QString macroName = tok[1].trimmed();
+
+  QString fln = fSavePath + macroName;
+  QFile file(fln);
+  if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
+    std::cerr << std::endl << "**ERROR** Couldn't open macro file for writting." << std::endl << std::endl;
+    return -2;
+  }
+
+  QTextStream fout(&file);
+
+  // write header
+  fout << "// --------------------------" << Qt::endl;
+  fout << "// " << fln.toLatin1().constData() << Qt::endl;
+  fout << "// " << QDateTime::currentDateTime().toString("yy/MM/dd - HH:mm:ss") << Qt::endl;
+  fout << "// --------------------------" << Qt::endl;
+  fout << "{" << Qt::endl;
+  fout << "  gROOT->Reset();" << Qt::endl;
+  fout << Qt::endl;
+  fout << "  gStyle->SetOptTitle(0);" << Qt::endl;
+  fout << "  gStyle->SetOptDate(0);" << Qt::endl;
+  fout << "  gStyle->SetPadColor(TColor::GetColor(255,255,255));    // pad bkg to white" << Qt::endl;
+  fout << "  gStyle->SetCanvasColor(TColor::GetColor(255,255,255)); // canvas bkg to white" << Qt::endl;
+  fout << Qt::endl;
+  fout << "  Int_t nn=0, i=0;" << Qt::endl;
+  fout << "  Double_t null[512];" << Qt::endl;
+  fout << "  Double_t xx[512];" << Qt::endl;
+  fout << "  Double_t yy[512];" << Qt::endl;
+  fout << "  Double_t yyPosErr[512];" << Qt::endl;
+  fout << "  Double_t yyNegErr[512];" << Qt::endl;
+  fout << Qt::endl;
+
+  // write data
+  QVector<double> xx, yy, yyPosErr, yyNegErr;
+  QString collName;
+  int count=0;
+  double x_min=0.0, x_max=0.0, x_min_new=0.0, x_max_new=0.0, y_min=0.0, y_max=0.0, y_min_new=0.0, y_max_new=0.0;
+  double dval, y_min_norm=1.0e10;
+  for (int i=0; i<fPlotInfo.size(); i++) {
+    // get collection name
+    collName = fParamDataHandler->GetCollectionName(i);
+    xx = fParamDataHandler->GetValues(collName, fPlotInfo[i].xLabel);
+    if (xx.size() == 0) { // it is a variable
+      int idx = getVarIndex(fPlotInfo[i].xLabel);
+      if (idx == -1) {
+        std::cerr << std::endl;
+        std::cerr << "**ERROR** Couldn't get x-label '" << fPlotInfo[i].xLabel.toLatin1().data() << "'." << std::endl;
+        std::cerr << "          This should never happens." << std::endl;
+        return -3;
+      }
+      QVector<double> qvec(fVarHandler[idx].getValues().begin(), fVarHandler[idx].getValues().end());
+      xx = qvec;
+    }
+    // get x-axis min/max
+    minMax(xx, x_min, x_max);
+    if (count==0) {
+      x_min_new = x_min;
+      x_max_new = x_max;
+    } else {
+      if (x_min < x_min_new)
+        x_min_new = x_min;
+      if (y_max > x_max_new)
+        x_max_new = x_max;
+    }
+
+    for (int j=0; j<fPlotInfo[i].yLabel.size(); j++) {
+      yy = fParamDataHandler->GetValues(collName, fPlotInfo[i].yLabel[j]);
+      yyPosErr = fParamDataHandler->GetPosErr(collName, fPlotInfo[i].yLabel[j]);
+      yyNegErr = fParamDataHandler->GetNegErr(collName, fPlotInfo[i].yLabel[j]);
+      if (yy.size() == 0) { // it's a variable
+        int idx = getVarIndex(fPlotInfo[i].yLabel[j]);
+        if (idx == -1) {
+          std::cerr << std::endl;
+          std::cerr << "**ERROR** Couldn't get y-label '" << fPlotInfo[i].yLabel[j].toLatin1().data() << "'." << std::endl;
+          std::cerr << "          This should never happens." << std::endl;
+          return -3;
+        }
+        QVector<double> qvecV(fVarHandler[idx].getValues().begin(), fVarHandler[idx].getValues().end());
+        yy = qvecV;
+        QVector<double> qvecE(fVarHandler[idx].getErrors().begin(), fVarHandler[idx].getErrors().end());
+        yyPosErr = qvecE;
+        yyNegErr = qvecE;
+      }
+      // get y-axis min/max
+      minMax(yy, y_min, y_max);
+      if (count==0) {
+        y_min_new = y_min;
+        y_max_new = y_max;
+      } else {
+        if (y_min < y_min_new)
+          y_min_new = y_min;
+        if (y_max > y_max_new)
+          y_max_new = y_max;
+      }
+      fout << "  // " << ++count << ". data set" << Qt::endl;
+      fout << "  nn = " << xx.size() << ";" << Qt::endl;
+      fout << "  // null-values" << Qt::endl;
+      for (int k=0; k<xx.size(); k++) {
+        fout << "  null[" << k << "]=0.0;" << Qt::endl;
+      }
+      fout << "  // x-values" << Qt::endl;
+      for (int k=0; k<xx.size(); k++) {
+        fout << "  xx[" << k << "]=" << xx[k] << ";" << Qt::endl;
+      }
+      fout << "  // y-values" << Qt::endl;
+      for (int k=0; k<yy.size(); k++) {
+        dval = yy[k];
+        if (fNorm) {
+          dval /= y_max;
+          if (dval < y_min_norm)
+            y_min_norm = dval;
+        }
+        fout << "  yy[" << k << "]=" << dval << ";" << Qt::endl;
+      }
+      fout << "  // yyNegErr-values" << Qt::endl;
+      for (int k=0; k<yyNegErr.size(); k++) {
+        dval = fabs(yyNegErr[k]);
+        if (fNorm)
+          dval /= fabs(y_max);
+        fout << "  yyNegErr[" << k << "]=" << dval << ";" << Qt::endl;
+      }
+      fout << "  // yyPosErr-values" << Qt::endl;
+      for (int k=0; k<yyPosErr.size(); k++) {
+        dval = fabs(yyPosErr[k]);
+        if (fNorm)
+          dval /= fabs(y_max);
+        fout << "  yyPosErr[" << k << "]=" << dval << ";" << Qt::endl;
+      }
+      fout << Qt::endl;
+      fout << "  TGraphAsymmErrors *g_" << i << "_" << j << " = new TGraphAsymmErrors(nn, xx, yy, null, null, yyNegErr, yyPosErr);" << Qt::endl;
+      fout << Qt::endl;
+    }
+  }
+
+  // x,y-min/max range
+  double diff;
+  if (x_min_new > 0.0)
+    x_min = 0.0;
+  else
+    x_min = x_min_new;
+  diff = x_max-x_min;
+  x_max = x_max_new + 0.05*diff;  
+  diff = y_max_new - y_min_new;
+  y_min = y_min_new - 0.05 * diff;
+  y_max = y_max_new + 0.05 * diff;
+  if (fNorm) {
+    diff = 1.0 - y_min_norm;
+    y_min = y_min_norm - 0.05 * diff;
+    y_max = 1.0 + 0.05 * diff;
+  }
+
+  // plotting
+  fout << "  //**********" << Qt::endl;
+  fout << "  // plotting " << Qt::endl;
+  fout << "  //**********" << Qt::endl;
+  fout << "  TCanvas *c1 = new TCanvas(\"c1\", \"" << macroName.toLatin1().constData() << "\", 10, 10, 600, 700);" << Qt::endl;
+  fout << Qt::endl;
+
+  count = 0;
+  int rr, gg, bb;
+  for (int i=0; i<fPlotInfo.size(); i++) {
+    for (int j=0; j<fPlotInfo[i].yLabel.size(); j++) {
+      if (count == 0) {
+        if (count < marker.size()) {
+          fout << "  g_" << i << "_" << j << "->SetMarkerStyle(" << marker[count].getMarker() << ");" << Qt::endl;
+          fout << "  g_" << i << "_" << j << "->SetMarkerSize(" << marker[count].getMarkerSize() << ");" << Qt::endl;
+          color[count].getRGB(rr, gg, bb);
+          fout << "  g_" << i << "_" << j << "->SetMarkerColor(TColor::GetColor(" << rr << "," << gg << "," << bb << "));" << Qt::endl;
+          fout << "  g_" << i << "_" << j << "->SetLineColor(TColor::GetColor(" << rr << "," << gg << "," << bb << "));" << Qt::endl;
+        } else {
+          fout << "  g_" << i << "_" << j << "->SetMarkerStyle(20);" << Qt::endl;
+          fout << "  g_" << i << "_" << j << "->SetMarkerSize(1.3);" << Qt::endl;
+          fout << "  g_" << i << "_" << j << "->SetMarkerColor(TColor::GetColor(0,0,0));" << Qt::endl;
+          fout << "  g_" << i << "_" << j << "->SetLineColor(TColor::GetColor(0,0,0));" << Qt::endl;
+        }
+        fout << "  g_" << i << "_" << j << "->SetFillColor(kWhite);" << Qt::endl;
+        fout << "  g_" << i << "_" << j << "->GetXaxis()->SetTitle(\"" << getNicerLabel(fPlotInfo[0].xLabel).toLatin1().data() << "\");" << Qt::endl;
+        fout << "  g_" << i << "_" << j << "->GetXaxis()->SetTitleSize(0.05);" << Qt::endl;
+        fout << "  g_" << i << "_" << j << "->GetXaxis()->SetDecimals(kTRUE);" << Qt::endl;
+        fout << "  g_" << i << "_" << j << "->GetXaxis()->SetLimits(" << x_min << "," << x_max << ");" << Qt::endl;
+        fout << "  g_" << i << "_" << j << "->GetYaxis()->SetTitle(\"" << getNicerLabel(fPlotInfo[0].yLabel[0]).toLatin1().data() << "\");" << Qt::endl;
+        fout << "  g_" << i << "_" << j << "->GetYaxis()->SetTitleSize(0.05);" << Qt::endl;
+        fout << "  g_" << i << "_" << j << "->GetYaxis()->SetTitleOffset(1.30);" << Qt::endl;
+        fout << "  g_" << i << "_" << j << "->GetYaxis()->SetRangeUser(" << y_min << "," << y_max << ");" << Qt::endl;
+        fout << "  g_" << i << "_" << j << "->Draw(\"AP\");" << Qt::endl;
+      } else {
+        if (count < marker.size()) {
+          fout << "  g_" << i << "_" << j << "->SetMarkerStyle(" << marker[count].getMarker() << ");" << Qt::endl;
+          fout << "  g_" << i << "_" << j << "->SetMarkerSize(" << marker[count].getMarkerSize() << ");" << Qt::endl;
+          color[count].getRGB(rr, gg, bb);
+          fout << "  g_" << i << "_" << j << "->SetMarkerColor(TColor::GetColor(" << rr << "," << gg << "," << bb << "));" << Qt::endl;
+          fout << "  g_" << i << "_" << j << "->SetLineColor(TColor::GetColor(" << rr << "," << gg << "," << bb << "));" << Qt::endl;
+        } else {
+          fout << "  g_" << i << "_" << j << "->SetMarkerStyle(20);" << Qt::endl;
+          fout << "  g_" << i << "_" << j << "->SetMarkerSize(1.3);" << Qt::endl;
+          fout << "  g_" << i << "_" << j << "->SetMarkerColor(TColor::GetColor(0,0,0));" << Qt::endl;
+          fout << "  g_" << i << "_" << j << "->SetLineColor(TColor::GetColor(0,0,0));" << Qt::endl;
+        }
+        fout << "  g_" << i << "_" << j << "->SetFillColor(kWhite);" << Qt::endl;
+        fout << "  g_" << i << "_" << j << "->Draw(\"Psame\");" << Qt::endl;
+      }
+      count++;
+    }
+  }
+  fout << "  c1->SetMargin(0.15, 0.05, 0.12, 0.05);" << Qt::endl;
+  fout << "  c1->Update();" << Qt::endl;
+  if (!plotFln.isEmpty()) {
+    fout << Qt::endl;
+    fout << "  c1->SaveAs(\"" << plotFln.toLatin1().constData() << "\");" << Qt::endl;
+  }
+  fout << "}" << Qt::endl;
+
+  return 0;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppScript::var_cmd. Variable definition command
+ * @param str variable definition command string
+ * @return 0 on success
+ */
+int PmuppScript::var_cmd(const QString str)
+{
+  QStringList tok;
+  int idx=0;
+
+  // get linked collection index for further use
+  tok = str.split(' ', Qt::SkipEmptyParts);
+  if (tok[1].endsWith("Err")) // error variable no need to do something
+    return 0;
+  idx = getCollectionIndex(tok[1]);
+  if (idx == -1) // var not linked to collection, ignore it
+    return 0;
+
+  // check if the related error variable is present
+  QString varErr = QString("%1%2").arg(tok[1]).arg("Err");
+  QString varErrCmd("");
+  for (int i=0; i<fScript.size(); i++) {
+    if (fScript.at(i).contains(varErr, Qt::CaseSensitive)) {
+      varErrCmd = fScript.at(i);
+      break;
+    }
+  }
+
+  std::string parse_str = str.toLatin1().data();
+  if (!varErrCmd.isEmpty()) {
+    parse_str += "\n";
+    parse_str += varErrCmd.toLatin1().data();
+  }
+
+  PVarHandler varHandler(fParamDataHandler->GetCollection(idx), parse_str, tok[1].toLatin1().data());
+  if (!varHandler.isValid()) {
+    // deal with errors
+    QString mupp_err = QString("%1/.musrfit/mupp/mupp_err.log").arg(QString(qgetenv("HOME")));
+
+    // dump error messages if present
+    QFile fout(mupp_err);
+    if (fout.open(QIODevice::ReadOnly | QIODevice::Text)) {
+      QString msg;
+      while (!fout.atEnd()) {
+        msg = fout.readLine();
+        std::cerr << msg.toLatin1().data();
+      }
+      // delete potentially present mupp_err.log file
+      QFile::remove(mupp_err);
+    }
+    return 1;
+  }
+  fVarHandler.push_back(varHandler);
+
+  return 0;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppScript::foundLabel find label in collection coll.
+ * @param coll collection object
+ * @return true if found
+ */
+bool PmuppScript::foundLabel(PmuppCollection *coll, const QString label)
+{
+  bool result = false;
+  for (int i=0; i<coll->GetRun(0).GetNoOfParam(); i++) {
+    if (!coll->GetRun(0).GetParam(i).GetName().compare(label)) {
+      result = true;
+      break;
+    }
+  }
+
+  return result;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppScript::foundVariable. Check if a variable is found in the
+ * variable handler.
+ * @param var variable name
+ * @return true if found
+ */
+bool PmuppScript::foundVariable(const QString var)
+{
+  bool result = false;
+  for (int i=0; i<fVarHandler.size(); i++) {
+    if (!fVarHandler[i].getVarName().compare(var)) {
+      result = true;
+      break;
+    }
+  }
+
+  return result;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppScript::getVarIndex. Get index of the variable object given by
+ * its name.
+ * @param var variable name searched for
+ * @return idx of found, -1 otherwise
+ */
+int PmuppScript::getVarIndex(const QString var)
+{
+  int idx = -1;
+  for (int i=0; i<fVarHandler.size(); i++) {
+    if (!fVarHandler[i].getVarName().compare(var)) {
+      idx = i;
+      break;
+    }
+  }
+
+  return idx;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppScript::minMax get minimum and maximum of the data set.
+ * @param dvec data set vector
+ * @param min resulting minimum
+ * @param max resulting maximum
+ */
+void PmuppScript::minMax(QVector<double> dvec, double &min, double &max)
+{
+  min = 99.0e6;
+  max = -99.0e6;
+  for (int i=0; i<dvec.size(); i++) {
+    if (dvec[i] < min)
+      min = dvec[i];
+    if (dvec[i] > max)
+      max = dvec[i];
+  }
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppScript::getNicerLabel. Prettify the labels.
+ * @param label to be prettified
+ * @return prettified label
+ */
+QString PmuppScript::getNicerLabel(const QString label)
+{
+  QString nice = label;
+
+  if (label == "dataE") {
+    nice = "E (keV)";
+  } else if (label == "dataT") {
+    nice = "T (K)";
+  } else if (label == "dataB") {
+    nice = "B (G)";
+  } else if (!label.compare("sigma", Qt::CaseInsensitive)) {
+    if (fNorm)
+      nice = "#sigma/max(#sigma)";
+    else
+      nice = "#sigma (1/#mus)";
+  } else if (!label.compare("lambda", Qt::CaseInsensitive)) {
+    if (fNorm)
+      nice = "#lambda/max(#lambda)";
+    else
+      nice = "#lambda (1/#mus)";
+  } else if (!label.compare("rate", Qt::CaseInsensitive)) {
+    if (fNorm)
+      nice = "Rate/max(Rate)";
+    else
+      nice = "Rate (1/#mus)";
+  } else if (!label.compare("alpha_LR", Qt::CaseInsensitive)) {
+    if (fNorm)
+      nice = "#alpha_{LR}/max(#alpha_{LR})";
+    else
+      nice = "#alpha_{LR}";
+  } else if (!label.compare("alpha_TB", Qt::CaseInsensitive)) {
+    if (fNorm)
+      nice = "#alpha_{TB}/max(#alpha_{TB})";
+    else
+      nice = "#alpha_{TB}";
+  } else {
+    if (fNorm) {
+      nice = label + "/ max(" + label + ")";
+    }
+  }
+
+  return nice;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PmuppScript::getCollectionIndex. Get the index of a collection.
+ * @param var_name name of the collection
+ * @return idx on success, -1 otherwise
+ */
+int PmuppScript::getCollectionIndex(const QString var_name)
+{
+  int idx = -1;
+  QString cmd;
+  QStringList tok;
+  bool ok;
+
+  for (int i=0; i<fScript.size(); i++) {
+    cmd = fScript.at(i);
+    if (cmd.startsWith("col")) {
+      tok.clear();
+      tok = cmd.split(' ', Qt::SkipEmptyParts);
+      if (tok[3] == var_name) {
+        idx = tok[1].toInt(&ok);
+        if (!ok) {
+          Q_ASSERT(0);
+        }
+        break;
+      }
+    }
+  }
+
+  return idx;
+}
diff --git a/src/musredit_qt6/mupp/PmuppScript.h b/src/musredit_qt6/mupp/PmuppScript.h
new file mode 100644
index 00000000..f198f638
--- /dev/null
+++ b/src/musredit_qt6/mupp/PmuppScript.h
@@ -0,0 +1,106 @@
+/***************************************************************************
+
+  PmuppScript.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PMUPPSCRIPT_H_
+#define _PMUPPSCRIPT_H_
+
+#include <QString>
+#include <QStringList>
+
+#include "PmuppAdmin.h"
+#include "Pmupp.h"
+#include "PVarHandler.h"
+
+//----------------------------------------------------------------------------
+typedef struct {
+  int collIdx; ///< collection index
+  QString xLabel; ///< x-axis label
+  QVector<QString> yLabel; ///< y-axis label(s)
+} PmuppPlotEntry;
+
+//----------------------------------------------------------------------------
+/**
+ * @brief The PmuppScript class. mupp script class which is used as a scripting
+ * interface for mupp.
+ */
+class PmuppScript : public QObject
+{
+  Q_OBJECT
+
+  public:
+    PmuppScript(QStringList script);
+    ~PmuppScript();
+
+    void setLoadPath(const QString cmd);
+    QString getLoadPath() { return fLoadPath; }
+
+    void setSavePath(const QString cmd);
+    QString getSavePath() { return fSavePath; }
+
+    int loadCollection(const QString str);
+    int select(const QString str);
+    int selectAll();
+    int addX(const QString str);
+    int addY(const QString str);
+    int plot(const QString str);
+    int macro(const QString str, const QString plotFln="");
+    int var_cmd(const QString str);
+
+  public slots:
+    int executeScript();
+
+  signals:
+    void finished();
+
+  private:
+    PmuppAdmin *fAdmin; ///< admin object
+
+    QStringList fScript; ///< script source
+    PParamDataHandler *fParamDataHandler; ///< parameter data handler
+    int fSelected; ///< -2=nothing selected, -1=all selected, >=0 is the index if the selected collection
+
+    PmuppPlotEntry fPlotEntry; ///< plot entry object
+    QVector<PmuppPlotEntry> fPlotInfo; ///< vector of all plot entry objects
+
+    bool fNorm; ///< normalization flag, true -> normalize y-data before plotting.
+    QString fLoadPath; ///< load path specifying where to look for data.
+    QString fSavePath; ///< save path specifying where to save data.
+
+    QVector<PVarHandler> fVarHandler; ///< variable handler vector
+
+    bool foundLabel(PmuppCollection *coll, const QString label);
+    bool foundVariable(const QString var);
+    int  getVarIndex(const QString var);
+    void minMax(QVector<double> dvec, double &min, double &max);
+    QString getNicerLabel(const QString label);
+
+    int getCollectionIndex(const QString var_name);
+};
+
+#endif // _PMUPPSCRIPT_H_
diff --git a/src/musredit_qt6/mupp/cmake/configure_mupp_version_file.cmake.in b/src/musredit_qt6/mupp/cmake/configure_mupp_version_file.cmake.in
new file mode 100644
index 00000000..9c8876be
--- /dev/null
+++ b/src/musredit_qt6/mupp/cmake/configure_mupp_version_file.cmake.in
@@ -0,0 +1,30 @@
+# configure_mupp_version_file.cmake.in:
+set(SRC_DIR "@CMAKE_CURRENT_SOURCE_DIR@")
+set(BIN_DIR "@CMAKE_CURRENT_BINARY_DIR@")
+
+# Set MUPP variables
+set(CMAKE_INSTALL_PREFIX "@CMAKE_INSTALL_PREFIX@")
+set(MUPP_VERSION "@mupp_VERSION@")
+
+# Get the current working branch
+execute_process(
+  COMMAND git rev-parse --abbrev-ref HEAD
+  WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+  OUTPUT_VARIABLE GIT_BRANCH
+  OUTPUT_STRIP_TRAILING_WHITESPACE
+)
+
+# Get the latest abbreviated commit hash of the working branch
+execute_process(
+  COMMAND git log -1 --pretty="%h, %ci"
+  WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+  OUTPUT_VARIABLE GIT_COMMIT_HASH
+  OUTPUT_STRIP_TRAILING_WHITESPACE
+)
+
+configure_file(
+  ${SRC_DIR}/cmake/mupp_version.h.in
+  ${BIN_DIR}/mupp_version.h 
+  @ONLY
+)
+# EOF
diff --git a/src/musredit_qt6/mupp/cmake/mupp_version.h.in b/src/musredit_qt6/mupp/cmake/mupp_version.h.in
new file mode 100644
index 00000000..0952ad96
--- /dev/null
+++ b/src/musredit_qt6/mupp/cmake/mupp_version.h.in
@@ -0,0 +1,11 @@
+#ifndef VERSION_H
+#define VERSION_H
+
+#define MUPP_PREFIX "@CMAKE_INSTALL_PREFIX@"
+#define MUPP_VERSION "@MUPP_VERSION@"
+
+#define GIT_BRANCH "@GIT_BRANCH@"
+#define GIT_COMMIT_HASH @GIT_COMMIT_HASH@
+
+#endif
+
diff --git a/src/musredit_qt6/mupp/examples/2485_tf_histo.msr b/src/musredit_qt6/mupp/examples/2485_tf_histo.msr
new file mode 100644
index 00000000..4f97e1ad
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2485_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=120.01 K, E=3.72 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.15779   -0.00080    0.00081     
+        2 Sigma       0.0681    -0.0061     0.0057      0       none    
+        3 Ph          -150.01   -0.59       0.60        
+        4 Field       1513.489  -0.031      0.032       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        262.50    -0.30       0.30        
+        7 N_bkg_L     4.930     -0.039      0.039       
+# T
+        8 RelPh_T     -90.95    -0.72       0.72        
+        9 N0_T        268.28    -0.30       0.30        
+       10 N_bkg_T     5.042     -0.039      0.039       
+# R
+       11 RelPh_R     180.00    -0.73       0.73        
+       12 alpha_LR    0.9991    -0.0016     0.0016      
+       13 N_bkg_R     5.228     -0.039      0.039       
+# B
+       14 RelPh_B     90.52     -0.73       0.73        
+       15 alpha_TB    0.9397    -0.0015     0.0015      
+       16 N_bkg_B     4.688     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2485 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2485 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2485 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2485 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-03 15:51:58
+  maxLH = 20436.1, NDF = 20361, maxLH/NDF = 1.003689
diff --git a/src/musredit_qt6/mupp/examples/2486_tf_histo.msr b/src/musredit_qt6/mupp/examples/2486_tf_histo.msr
new file mode 100644
index 00000000..8e95aa09
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2486_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=110.01 K, E=3.72 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.15809   -0.00080    0.00081     
+        2 Sigma       0.0649    -0.0064     0.0059      0       none    
+        3 Ph          -149.17   -0.59       0.58        
+        4 Field       1513.565  -0.031      0.031       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        262.96    -0.30       0.30        
+        7 N_bkg_L     4.780     -0.038      0.038       
+# T
+        8 RelPh_T     -90.23    -0.71       0.72        
+        9 N0_T        268.63    -0.30       0.30        
+       10 N_bkg_T     4.938     -0.039      0.039       
+# R
+       11 RelPh_R     178.56    -0.71       0.72        
+       12 alpha_LR    0.9990    -0.0016     0.0016      
+       13 N_bkg_R     5.152     -0.039      0.039       
+# B
+       14 RelPh_B     88.76     -0.73       0.74        
+       15 alpha_TB    0.9377    -0.0015     0.0015      
+       16 N_bkg_B     4.705     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2486 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2486 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2486 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2486 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-03 16:19:31
+  maxLH = 20767.0, NDF = 20361, maxLH/NDF = 1.019939
diff --git a/src/musredit_qt6/mupp/examples/2487_tf_histo.msr b/src/musredit_qt6/mupp/examples/2487_tf_histo.msr
new file mode 100644
index 00000000..826b6241
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2487_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=100.00 K, E=3.72 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.15934   -0.00082    0.00082     
+        2 Sigma       0.0922    -0.0048     0.0047      0       none    
+        3 Ph          -150.01   -0.59       0.59        
+        4 Field       1513.756  -0.033      0.033       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        263.43    -0.30       0.30        
+        7 N_bkg_L     4.848     -0.039      0.039       
+# T
+        8 RelPh_T     -88.93    -0.72       0.72        
+        9 N0_T        268.40    -0.30       0.30        
+       10 N_bkg_T     4.936     -0.039      0.039       
+# R
+       11 RelPh_R     180.65    -0.73       0.73        
+       12 alpha_LR    0.9991    -0.0016     0.0016      
+       13 N_bkg_R     5.253     -0.039      0.039       
+# B
+       14 RelPh_B     89.79     -0.73       0.73        
+       15 alpha_TB    0.9424    -0.0015     0.0015      
+       16 N_bkg_B     4.794     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2487 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2487 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2487 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2487 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-03 16:55:59
+  maxLH = 20276.6, NDF = 20361, maxLH/NDF = 0.995855
diff --git a/src/musredit_qt6/mupp/examples/2488_tf_histo.msr b/src/musredit_qt6/mupp/examples/2488_tf_histo.msr
new file mode 100644
index 00000000..bb1d6be1
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2488_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=90.00 K, E=3.72 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.15729   -0.00081    0.00081     
+        2 Sigma       0.0682    -0.0062     0.0058      0       none    
+        3 Ph          -151.06   -0.59       0.58        
+        4 Field       1513.939  -0.031      0.032       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        263.19    -0.30       0.30        
+        7 N_bkg_L     4.791     -0.038      0.039       
+# T
+        8 RelPh_T     -88.06    -0.71       0.73        
+        9 N0_T        268.08    -0.30       0.30        
+       10 N_bkg_T     5.070     -0.039      0.039       
+# R
+       11 RelPh_R     180.74    -0.72       0.73        
+       12 alpha_LR    0.9960    -0.0016     0.0016      
+       13 N_bkg_R     5.257     -0.039      0.040       
+# B
+       14 RelPh_B     91.29     -0.72       0.73        
+       15 alpha_TB    0.9416    -0.0015     0.0015      
+       16 N_bkg_B     4.703     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2488 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2488 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2488 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2488 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-03 17:35:16
+  maxLH = 20817.9, NDF = 20361, maxLH/NDF = 1.022442
diff --git a/src/musredit_qt6/mupp/examples/2489_tf_histo.msr b/src/musredit_qt6/mupp/examples/2489_tf_histo.msr
new file mode 100644
index 00000000..6dc2c976
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2489_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=80.00 K, E=3.72 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.15485   -0.00095    0.00095     
+        2 Sigma       0.2684    -0.0043     0.0043      0       none    
+        3 Ph          -148.61   -0.68       0.70        
+        4 Field       1513.209  -0.057      0.057       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        261.84    -0.30       0.30        
+        7 N_bkg_L     4.866     -0.039      0.039       
+# T
+        8 RelPh_T     -87.62    -0.85       0.82        
+        9 N0_T        267.69    -0.30       0.30        
+       10 N_bkg_T     5.009     -0.039      0.039       
+# R
+       11 RelPh_R     182.56    -0.86       0.83        
+       12 alpha_LR    1.0033    -0.0016     0.0016      
+       13 N_bkg_R     5.215     -0.039      0.039       
+# B
+       14 RelPh_B     92.29     -0.87       0.84        
+       15 alpha_TB    0.9398    -0.0015     0.0015      
+       16 N_bkg_B     4.713     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2489 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2489 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2489 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2489 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-03 17:51:30
+  maxLH = 20788.2, NDF = 20361, maxLH/NDF = 1.020982
diff --git a/src/musredit_qt6/mupp/examples/2490_tf_histo.msr b/src/musredit_qt6/mupp/examples/2490_tf_histo.msr
new file mode 100644
index 00000000..f86f002f
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2490_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=70.00 K, E=3.72 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1479    -0.0012     0.0012      
+        2 Sigma       0.5707    -0.0084     0.0086      0       none    
+        3 Ph          -143.97   -0.91       0.90        
+        4 Field       1510.98   -0.12       0.13        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        262.34    -0.30       0.30        
+        7 N_bkg_L     4.771     -0.038      0.039       
+# T
+        8 RelPh_T     -90.6     -1.1        1.1         
+        9 N0_T        268.29    -0.30       0.30        
+       10 N_bkg_T     4.998     -0.039      0.039       
+# R
+       11 RelPh_R     180.3     -1.1        1.1         
+       12 alpha_LR    1.0020    -0.0016     0.0016      
+       13 N_bkg_R     5.240     -0.039      0.039       
+# B
+       14 RelPh_B     90.6      -1.1        1.1         
+       15 alpha_TB    0.9407    -0.0015     0.0015      
+       16 N_bkg_B     4.649     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2490 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2490 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2490 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2490 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-03 18:21:39
+  maxLH = 20459.9, NDF = 20361, maxLH/NDF = 1.004857
diff --git a/src/musredit_qt6/mupp/examples/2491_tf_histo.msr b/src/musredit_qt6/mupp/examples/2491_tf_histo.msr
new file mode 100644
index 00000000..b1e9e83e
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2491_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=60.00 K, E=3.72 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1470    -0.0014     0.0014      
+        2 Sigma       0.747     -0.011      0.011       0       none    
+        3 Ph          -140.57   -1.00       1.00        
+        4 Field       1509.20   -0.17       0.17        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        261.28    -0.30       0.30        
+        7 N_bkg_L     4.777     -0.038      0.039       
+# T
+        8 RelPh_T     -92.4     -1.2        1.2         
+        9 N0_T        268.75    -0.30       0.30        
+       10 N_bkg_T     4.861     -0.039      0.039       
+# R
+       11 RelPh_R     177.8     -1.2        1.2         
+       12 alpha_LR    1.0073    -0.0016     0.0016      
+       13 N_bkg_R     5.148     -0.039      0.039       
+# B
+       14 RelPh_B     86.7      -1.2        1.2         
+       15 alpha_TB    0.9345    -0.0015     0.0015      
+       16 N_bkg_B     4.798     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2491 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2491 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2491 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2491 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-03 18:52:37
+  maxLH = 20785.1, NDF = 20361, maxLH/NDF = 1.020830
diff --git a/src/musredit_qt6/mupp/examples/2492_tf_histo.msr b/src/musredit_qt6/mupp/examples/2492_tf_histo.msr
new file mode 100644
index 00000000..358a220a
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2492_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=49.99 K, E=3.72 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1422    -0.0014     0.0014      
+        2 Sigma       0.861     -0.013      0.013       0       none    
+        3 Ph          -141.6    -1.1        1.1         
+        4 Field       1507.25   -0.21       0.22        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        263.18    -0.30       0.30        
+        7 N_bkg_L     4.744     -0.039      0.038       
+# T
+        8 RelPh_T     -88.5     -1.3        1.3         
+        9 N0_T        269.06    -0.30       0.30        
+       10 N_bkg_T     5.062     -0.040      0.039       
+# R
+       11 RelPh_R     181.5     -1.3        1.3         
+       12 alpha_LR    1.0004    -0.0016     0.0016      
+       13 N_bkg_R     5.298     -0.040      0.039       
+# B
+       14 RelPh_B     91.0      -1.3        1.3         
+       15 alpha_TB    0.9408    -0.0015     0.0015      
+       16 N_bkg_B     4.734     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2492 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2492 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2492 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2492 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-03 19:20:19
+  maxLH = 20799.5, NDF = 20361, maxLH/NDF = 1.021534
diff --git a/src/musredit_qt6/mupp/examples/2493_tf_histo.msr b/src/musredit_qt6/mupp/examples/2493_tf_histo.msr
new file mode 100644
index 00000000..60bb3dee
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2493_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=40.00 K, E=3.72 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1381    -0.0015     0.0015      
+        2 Sigma       0.970     -0.016      0.016       0       none    
+        3 Ph          -140.2    -1.2        1.2         
+        4 Field       1506.77   -0.26       0.26        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        262.27    -0.30       0.30        
+        7 N_bkg_L     4.712     -0.038      0.038       
+# T
+        8 RelPh_T     -90.9     -1.4        1.4         
+        9 N0_T        269.85    -0.30       0.30        
+       10 N_bkg_T     4.981     -0.039      0.039       
+# R
+       11 RelPh_R     181.2     -1.4        1.4         
+       12 alpha_LR    1.0097    -0.0016     0.0016      
+       13 N_bkg_R     5.230     -0.040      0.039       
+# B
+       14 RelPh_B     89.4      -1.4        1.4         
+       15 alpha_TB    0.9379    -0.0015     0.0015      
+       16 N_bkg_B     4.738     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2493 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2493 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2493 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2493 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-03 20:07:55
+  maxLH = 20044.5, NDF = 20361, maxLH/NDF = 0.984454
diff --git a/src/musredit_qt6/mupp/examples/2494_tf_histo.msr b/src/musredit_qt6/mupp/examples/2494_tf_histo.msr
new file mode 100644
index 00000000..0652cc25
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2494_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=30.00 K, E=3.72 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1442    -0.0016     0.0016      
+        2 Sigma       1.094     -0.018      0.018       0       none    
+        3 Ph          -137.3    -1.2        1.2         
+        4 Field       1505.51   -0.29       0.29        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        259.62    -0.30       0.30        
+        7 N_bkg_L     4.850     -0.039      0.038       
+# T
+        8 RelPh_T     -93.2     -1.4        1.4         
+        9 N0_T        268.18    -0.30       0.30        
+       10 N_bkg_T     5.057     -0.039      0.039       
+# R
+       11 RelPh_R     178.0     -1.4        1.4         
+       12 alpha_LR    1.0129    -0.0016     0.0016      
+       13 N_bkg_R     5.224     -0.039      0.039       
+# B
+       14 RelPh_B     89.1      -1.4        1.4         
+       15 alpha_TB    0.9400    -0.0015     0.0015      
+       16 N_bkg_B     4.568     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2494 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2494 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2494 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2494 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-03 20:51:41
+  maxLH = 20448.4, NDF = 20361, maxLH/NDF = 1.004295
diff --git a/src/musredit_qt6/mupp/examples/2495_tf_histo.msr b/src/musredit_qt6/mupp/examples/2495_tf_histo.msr
new file mode 100644
index 00000000..afe7487a
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2495_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=20.00 K, E=3.72 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1393    -0.0016     0.0017      
+        2 Sigma       1.138     -0.020      0.020       0       none    
+        3 Ph          -141.9    -1.3        1.3         
+        4 Field       1505.85   -0.32       0.32        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        261.04    -0.30       0.30        
+        7 N_bkg_L     4.715     -0.038      0.038       
+# T
+        8 RelPh_T     -87.0     -1.5        1.5         
+        9 N0_T        269.62    -0.30       0.30        
+       10 N_bkg_T     5.026     -0.039      0.039       
+# R
+       11 RelPh_R     180.2     -1.5        1.5         
+       12 alpha_LR    1.0091    -0.0016     0.0016      
+       13 N_bkg_R     5.218     -0.039      0.039       
+# B
+       14 RelPh_B     91.8      -1.5        1.5         
+       15 alpha_TB    0.9369    -0.0015     0.0015      
+       16 N_bkg_B     4.643     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2495 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2495 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2495 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2495 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-03 20:51:31
+  maxLH = 20908.9, NDF = 20361, maxLH/NDF = 1.026911
diff --git a/src/musredit_qt6/mupp/examples/2496_tf_histo.msr b/src/musredit_qt6/mupp/examples/2496_tf_histo.msr
new file mode 100644
index 00000000..88b917f0
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2496_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=10.01 K, E=3.72 keV, B=~1500(G)/259.53(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1431    -0.0017     0.0017      
+        2 Sigma       1.227     -0.021      0.021       0       none    
+        3 Ph          -140.1    -1.3        1.3         
+        4 Field       1504.58   -0.34       0.34        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        261.09    -0.30       0.30        
+        7 N_bkg_L     4.683     -0.038      0.038       
+# T
+        8 RelPh_T     -90.1     -1.5        1.5         
+        9 N0_T        268.81    -0.30       0.30        
+       10 N_bkg_T     5.029     -0.039      0.039       
+# R
+       11 RelPh_R     178.6     -1.5        1.5         
+       12 alpha_LR    1.0115    -0.0016     0.0016      
+       13 N_bkg_R     5.133     -0.039      0.039       
+# B
+       14 RelPh_B     89.2      -1.5        1.5         
+       15 alpha_TB    0.9387    -0.0015     0.0015      
+       16 N_bkg_B     4.799     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2496 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2496 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2496 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2496 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-03 21:18:46
+  maxLH = 20464.0, NDF = 20361, maxLH/NDF = 1.005059
diff --git a/src/musredit_qt6/mupp/examples/2497_tf_histo.msr b/src/musredit_qt6/mupp/examples/2497_tf_histo.msr
new file mode 100644
index 00000000..32ae88a8
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2497_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=4.99 K, E=3.72 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1344    -0.0015     0.0015      
+        2 Sigma       1.195     -0.019      0.019       0       none    
+        3 Ph          -135.1    -1.2        1.2         
+        4 Field       1503.89   -0.32       0.32        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        313.46    -0.32       0.33        
+        7 N_bkg_L     5.724     -0.042      0.042       
+# T
+        8 RelPh_T     -90.8     -1.4        1.4         
+        9 N0_T        322.27    -0.33       0.33        
+       10 N_bkg_T     6.028     -0.043      0.043       
+# R
+       11 RelPh_R     175.3     -1.5        1.5         
+       12 alpha_LR    1.0103    -0.0015     0.0015      
+       13 N_bkg_R     6.222     -0.043      0.043       
+# B
+       14 RelPh_B     86.5      -1.5        1.5         
+       15 alpha_TB    0.9401    -0.0014     0.0014      
+       16 N_bkg_B     5.563     -0.042      0.041       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2497 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2497 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2497 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2497 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-03 21:52:51
+  maxLH = 20911.8, NDF = 20361, maxLH/NDF = 1.027052
diff --git a/src/musredit_qt6/mupp/examples/2498_tf_histo.msr b/src/musredit_qt6/mupp/examples/2498_tf_histo.msr
new file mode 100644
index 00000000..1c9435d1
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2498_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=120.00 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.15430   -0.00077    0.00077     
+        2 Sigma       0.1070    -0.0043     0.0042      0       none    
+        3 Ph          21.06     -0.56       0.56        
+        4 Field       101.611   -0.032      0.032       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        304.71    -0.32       0.33        
+        7 N_bkg_L     5.850     -0.042      0.042       
+# T
+        8 RelPh_T     -88.67    -0.69       0.69        
+        9 N0_T        322.01    -0.33       0.33        
+       10 N_bkg_T     6.275     -0.043      0.043       
+# R
+       11 RelPh_R     182.67    -0.68       0.68        
+       12 alpha_LR    1.0480    -0.0016     0.0016      
+       13 N_bkg_R     6.506     -0.043      0.044       
+# B
+       14 RelPh_B     91.87     -0.71       0.71        
+       15 alpha_TB    0.9186    -0.0014     0.0014      
+       16 N_bkg_B     5.789     -0.042      0.042       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2498 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2498 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2498 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2498 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 250
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 06:16:24
+  maxLH = 20371.9, NDF = 20361, maxLH/NDF = 1.000533
diff --git a/src/musredit_qt6/mupp/examples/2499_tf_histo.msr b/src/musredit_qt6/mupp/examples/2499_tf_histo.msr
new file mode 100644
index 00000000..feeb08e3
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2499_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=110.00 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.15162   -0.00076    0.00077     
+        2 Sigma       0.1038    -0.0044     0.0043      0       none    
+        3 Ph          21.96     -0.56       0.56        
+        4 Field       101.648   -0.032      0.033       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        306.71    -0.33       0.32        
+        7 N_bkg_L     5.651     -0.042      0.042       
+# T
+        8 RelPh_T     -88.95    -0.71       0.70        
+        9 N0_T        322.89    -0.33       0.33        
+       10 N_bkg_T     6.064     -0.043      0.043       
+# R
+       11 RelPh_R     180.98    -0.70       0.69        
+       12 alpha_LR    1.0395    -0.0015     0.0015      
+       13 N_bkg_R     6.410     -0.043      0.043       
+# B
+       14 RelPh_B     89.25     -0.72       0.71        
+       15 alpha_TB    0.9199    -0.0014     0.0014      
+       16 N_bkg_B     5.683     -0.041      0.042       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2499 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2499 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2499 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2499 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 250
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 06:17:37
+  maxLH = 20571.2, NDF = 20361, maxLH/NDF = 1.010323
diff --git a/src/musredit_qt6/mupp/examples/2500_tf_histo.msr b/src/musredit_qt6/mupp/examples/2500_tf_histo.msr
new file mode 100644
index 00000000..4259c94e
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2500_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=100.00 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.15397   -0.00077    0.00077     
+        2 Sigma       0.1179    -0.0041     0.0040      0       none    
+        3 Ph          22.69     -0.56       0.57        
+        4 Field       101.788   -0.033      0.033       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        305.99    -0.32       0.33        
+        7 N_bkg_L     5.667     -0.042      0.042       
+# T
+        8 RelPh_T     -89.73    -0.70       0.69        
+        9 N0_T        322.59    -0.33       0.33        
+       10 N_bkg_T     6.099     -0.043      0.043       
+# R
+       11 RelPh_R     180.18    -0.70       0.69        
+       12 alpha_LR    1.0455    -0.0016     0.0015      
+       13 N_bkg_R     6.407     -0.043      0.043       
+# B
+       14 RelPh_B     88.65     -0.71       0.70        
+       15 alpha_TB    0.9225    -0.0014     0.0014      
+       16 N_bkg_B     5.755     -0.042      0.042       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2500 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2500 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2500 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2500 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 250
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 06:17:39
+  maxLH = 20798.7, NDF = 20361, maxLH/NDF = 1.021497
diff --git a/src/musredit_qt6/mupp/examples/2501_tf_histo.msr b/src/musredit_qt6/mupp/examples/2501_tf_histo.msr
new file mode 100644
index 00000000..c1a43965
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2501_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=90.00 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.15292   -0.00076    0.00078     
+        2 Sigma       0.1139    -0.0041     0.0041      0       none    
+        3 Ph          22.77     -0.56       0.56        
+        4 Field       101.934   -0.032      0.033       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        305.80    -0.32       0.33        
+        7 N_bkg_L     5.615     -0.042      0.041       
+# T
+        8 RelPh_T     -89.44    -0.70       0.70        
+        9 N0_T        323.19    -0.33       0.33        
+       10 N_bkg_T     5.877     -0.043      0.043       
+# R
+       11 RelPh_R     179.80    -0.69       0.69        
+       12 alpha_LR    1.0427    -0.0016     0.0015      
+       13 N_bkg_R     6.380     -0.043      0.043       
+# B
+       14 RelPh_B     90.59     -0.72       0.72        
+       15 alpha_TB    0.9193    -0.0014     0.0014      
+       16 N_bkg_B     5.684     -0.041      0.042       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2501 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2501 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2501 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2501 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 250
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 06:17:42
+  maxLH = 20651.7, NDF = 20361, maxLH/NDF = 1.014275
diff --git a/src/musredit_qt6/mupp/examples/2502_tf_histo.msr b/src/musredit_qt6/mupp/examples/2502_tf_histo.msr
new file mode 100644
index 00000000..3bf6d361
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2502_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=80.00 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.15503   -0.00080    0.00080     
+        2 Sigma       0.1701    -0.0037     0.0037      0       none    
+        3 Ph          23.32     -0.58       0.58        
+        4 Field       101.761   -0.038      0.038       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        307.50    -0.32       0.33        
+        7 N_bkg_L     5.583     -0.042      0.042       
+# T
+        8 RelPh_T     -89.57    -0.72       0.72        
+        9 N0_T        322.69    -0.33       0.33        
+       10 N_bkg_T     6.069     -0.043      0.043       
+# R
+       11 RelPh_R     180.36    -0.71       0.70        
+       12 alpha_LR    1.0438    -0.0016     0.0015      
+       13 N_bkg_R     6.327     -0.043      0.043       
+# B
+       14 RelPh_B     90.42     -0.73       0.73        
+       15 alpha_TB    0.9273    -0.0014     0.0014      
+       16 N_bkg_B     5.494     -0.041      0.041       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2502 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2502 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2502 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2502 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 250
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 06:17:45
+  maxLH = 20164.1, NDF = 20361, maxLH/NDF = 0.990327
diff --git a/src/musredit_qt6/mupp/examples/2503_tf_histo.msr b/src/musredit_qt6/mupp/examples/2503_tf_histo.msr
new file mode 100644
index 00000000..64b3482e
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2503_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=70.01 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.14723   -0.00085    0.00085     
+        2 Sigma       0.2154    -0.0041     0.0041      0       none    
+        3 Ph          24.96     -0.63       0.63        
+        4 Field       100.813   -0.046      0.046       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        305.91    -0.32       0.33        
+        7 N_bkg_L     5.739     -0.042      0.042       
+# T
+        8 RelPh_T     -88.52    -0.78       0.78        
+        9 N0_T        322.43    -0.33       0.33        
+       10 N_bkg_T     6.083     -0.043      0.043       
+# R
+       11 RelPh_R     181.37    -0.77       0.78        
+       12 alpha_LR    1.0466    -0.0016     0.0015      
+       13 N_bkg_R     6.381     -0.043      0.044       
+# B
+       14 RelPh_B     90.77     -0.80       0.80        
+       15 alpha_TB    0.9244    -0.0014     0.0014      
+       16 N_bkg_B     5.651     -0.041      0.041       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2503 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2503 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2503 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2503 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 250
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 06:17:47
+  maxLH = 20557.8, NDF = 20361, maxLH/NDF = 1.009667
diff --git a/src/musredit_qt6/mupp/examples/2504_tf_histo.msr b/src/musredit_qt6/mupp/examples/2504_tf_histo.msr
new file mode 100644
index 00000000..64dffabc
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2504_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=60.00 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.14658   -0.00089    0.00089     
+        2 Sigma       0.2583    -0.0044     0.0044      0       none    
+        3 Ph          27.31     -0.65       0.65        
+        4 Field       100.082   -0.052      0.053       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        307.17    -0.32       0.33        
+        7 N_bkg_L     5.644     -0.042      0.042       
+# T
+        8 RelPh_T     -90.36    -0.81       0.81        
+        9 N0_T        322.70    -0.33       0.33        
+       10 N_bkg_T     6.046     -0.043      0.043       
+# R
+       11 RelPh_R     179.44    -0.80       0.80        
+       12 alpha_LR    1.0422    -0.0015     0.0015      
+       13 N_bkg_R     6.290     -0.043      0.043       
+# B
+       14 RelPh_B     89.98     -0.83       0.83        
+       15 alpha_TB    0.9204    -0.0014     0.0014      
+       16 N_bkg_B     5.629     -0.041      0.042       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2504 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2504 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2504 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2504 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 250
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 06:17:51
+  maxLH = 20312.5, NDF = 20361, maxLH/NDF = 0.997620
diff --git a/src/musredit_qt6/mupp/examples/2505_tf_histo.msr b/src/musredit_qt6/mupp/examples/2505_tf_histo.msr
new file mode 100644
index 00000000..c48ba858
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2505_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=50.00 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.14694   -0.00091    0.00092     
+        2 Sigma       0.3015    -0.0046     0.0047      0       none    
+        3 Ph          26.54     -0.67       0.67        
+        4 Field       99.560    -0.060      0.060       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        308.21    -0.33       0.33        
+        7 N_bkg_L     5.725     -0.042      0.042       
+# T
+        8 RelPh_T     -88.06    -0.84       0.84        
+        9 N0_T        322.68    -0.33       0.33        
+       10 N_bkg_T     5.998     -0.043      0.043       
+# R
+       11 RelPh_R     182.28    -0.83       0.83        
+       12 alpha_LR    1.0340    -0.0015     0.0015      
+       13 N_bkg_R     6.414     -0.043      0.043       
+# B
+       14 RelPh_B     93.05     -0.85       0.85        
+       15 alpha_TB    0.9233    -0.0014     0.0014      
+       16 N_bkg_B     5.554     -0.041      0.041       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2505 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2505 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2505 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2505 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 250
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 06:17:53
+  maxLH = 20520.8, NDF = 20361, maxLH/NDF = 1.007850
diff --git a/src/musredit_qt6/mupp/examples/2506_tf_histo.msr b/src/musredit_qt6/mupp/examples/2506_tf_histo.msr
new file mode 100644
index 00000000..6b2298ea
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2506_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=39.99 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.14448   -0.00093    0.00093     
+        2 Sigma       0.3229    -0.0049     0.0049      0       none    
+        3 Ph          27.69     -0.71       0.71        
+        4 Field       99.218    -0.065      0.065       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        308.64    -0.32       0.33        
+        7 N_bkg_L     5.629     -0.042      0.042       
+# T
+        8 RelPh_T     -89.25    -0.87       0.87        
+        9 N0_T        323.32    -0.33       0.33        
+       10 N_bkg_T     5.986     -0.043      0.043       
+# R
+       11 RelPh_R     179.57    -0.85       0.85        
+       12 alpha_LR    1.0321    -0.0015     0.0015      
+       13 N_bkg_R     6.356     -0.043      0.043       
+# B
+       14 RelPh_B     92.12     -0.88       0.88        
+       15 alpha_TB    0.9198    -0.0014     0.0014      
+       16 N_bkg_B     5.560     -0.041      0.041       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2506 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2506 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2506 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2506 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 250
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 06:17:56
+  maxLH = 20387.1, NDF = 20361, maxLH/NDF = 1.001283
diff --git a/src/musredit_qt6/mupp/examples/2507_tf_histo.msr b/src/musredit_qt6/mupp/examples/2507_tf_histo.msr
new file mode 100644
index 00000000..13ad1c32
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2507_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=30.00 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.14302   -0.00096    0.00096     
+        2 Sigma       0.3559    -0.0053     0.0054      0       none    
+        3 Ph          26.24     -0.73       0.73        
+        4 Field       99.133    -0.071      0.071       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        308.94    -0.33       0.33        
+        7 N_bkg_L     5.538     -0.042      0.042       
+# T
+        8 RelPh_T     -89.10    -0.89       0.89        
+        9 N0_T        325.00    -0.33       0.33        
+       10 N_bkg_T     5.966     -0.043      0.043       
+# R
+       11 RelPh_R     180.61    -0.88       0.88        
+       12 alpha_LR    1.0277    -0.0015     0.0015      
+       13 N_bkg_R     6.368     -0.043      0.043       
+# B
+       14 RelPh_B     91.54     -0.92       0.92        
+       15 alpha_TB    0.9171    -0.0014     0.0014      
+       16 N_bkg_B     5.501     -0.041      0.041       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2507 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2507 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2507 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2507 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 250
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 06:17:58
+  maxLH = 20754.5, NDF = 20361, maxLH/NDF = 1.019328
diff --git a/src/musredit_qt6/mupp/examples/2508_tf_histo.msr b/src/musredit_qt6/mupp/examples/2508_tf_histo.msr
new file mode 100644
index 00000000..e73925e9
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2508_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=19.98 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.14124   -0.00097    0.00098     
+        2 Sigma       0.3703    -0.0055     0.0056      0       none    
+        3 Ph          27.39     -0.74       0.74        
+        4 Field       98.751    -0.075      0.075       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        309.63    -0.32       0.33        
+        7 N_bkg_L     5.579     -0.042      0.042       
+# T
+        8 RelPh_T     -89.02    -0.92       0.92        
+        9 N0_T        324.61    -0.33       0.33        
+       10 N_bkg_T     6.045     -0.043      0.043       
+# R
+       11 RelPh_R     180.44    -0.90       0.89        
+       12 alpha_LR    1.0280    -0.0015     0.0015      
+       13 N_bkg_R     6.317     -0.043      0.043       
+# B
+       14 RelPh_B     91.04     -0.94       0.94        
+       15 alpha_TB    0.9176    -0.0014     0.0014      
+       16 N_bkg_B     5.626     -0.041      0.042       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2508 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2508 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2508 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2508 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 250
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 06:18:01
+  maxLH = 20451.1, NDF = 20361, maxLH/NDF = 1.004423
diff --git a/src/musredit_qt6/mupp/examples/2509_tf_histo.msr b/src/musredit_qt6/mupp/examples/2509_tf_histo.msr
new file mode 100644
index 00000000..f03d24e9
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2509_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=10.01 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.13867   -0.00098    0.00099     
+        2 Sigma       0.3824    -0.0058     0.0058      0       none    
+        3 Ph          29.09     -0.77       0.77        
+        4 Field       98.629    -0.079      0.079       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        309.62    -0.32       0.33        
+        7 N_bkg_L     5.543     -0.042      0.042       
+# T
+        8 RelPh_T     -91.92    -0.95       0.94        
+        9 N0_T        323.32    -0.33       0.33        
+       10 N_bkg_T     6.028     -0.043      0.043       
+# R
+       11 RelPh_R     180.01    -0.93       0.93        
+       12 alpha_LR    1.0266    -0.0015     0.0015      
+       13 N_bkg_R     6.234     -0.043      0.043       
+# B
+       14 RelPh_B     90.07     -0.96       0.96        
+       15 alpha_TB    0.9183    -0.0014     0.0014      
+       16 N_bkg_B     5.573     -0.041      0.041       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2509 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2509 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2509 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2509 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 250
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 06:18:03
+  maxLH = 20426.7, NDF = 20361, maxLH/NDF = 1.003225
diff --git a/src/musredit_qt6/mupp/examples/2510_tf_histo.msr b/src/musredit_qt6/mupp/examples/2510_tf_histo.msr
new file mode 100644
index 00000000..2c826521
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2510_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=5.01 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.13438   -0.00098    0.00098     
+        2 Sigma       0.3809    -0.0059     0.0060      0       none    
+        3 Ph          27.97     -0.79       0.79        
+        4 Field       98.570    -0.081      0.082       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        309.88    -0.33       0.33        
+        7 N_bkg_L     5.664     -0.042      0.042       
+# T
+        8 RelPh_T     -88.74    -0.96       0.97        
+        9 N0_T        325.36    -0.33       0.33        
+       10 N_bkg_T     5.981     -0.043      0.043       
+# R
+       11 RelPh_R     180.84    -0.96       0.96        
+       12 alpha_LR    1.0271    -0.0015     0.0015      
+       13 N_bkg_R     6.324     -0.043      0.043       
+# B
+       14 RelPh_B     92.48     -0.99       0.98        
+       15 alpha_TB    0.9141    -0.0014     0.0014      
+       16 N_bkg_B     5.608     -0.042      0.041       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2510 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2510 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2510 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2510 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 250
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 06:18:06
+  maxLH = 20906.7, NDF = 20361, maxLH/NDF = 1.026802
diff --git a/src/musredit_qt6/mupp/examples/2511_tf_histo.msr b/src/musredit_qt6/mupp/examples/2511_tf_histo.msr
new file mode 100644
index 00000000..afbf87ef
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2511_tf_histo.msr
@@ -0,0 +1,95 @@
+YBCO-40nm, T=119.99 K, E=3.72 keV, B=~50(G)/8.65(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.15228   -0.00061    0.00061     
+        2 Sigma       0.1395    -0.0029     0.0029      0       none    
+        3 Ph          11.17     -0.45       0.45        
+        4 Field       52.675    -0.027      0.028       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        517.08    -0.43       0.43        
+        7 N_bkg_L     9.123     -0.054      0.054       
+# T
+        8 RelPh_T     -90.84    -0.56       0.56        
+        9 N0_T        537.04    -0.42       0.43        
+       10 N_bkg_T     9.880     -0.055      0.055       
+# R
+       11 RelPh_R     180.62    -0.55       0.55        
+       12 alpha_LR    1.0260    -0.0012     0.0012      
+       13 N_bkg_R     10.404    -0.056      0.056       
+# B
+       14 RelPh_B     88.79     -0.56       0.56        
+       15 alpha_TB    0.9256    -0.0011     0.0011      
+       16 N_bkg_B     9.143     -0.053      0.053       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2511 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2511 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2511 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2511 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 500
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+
+###############################################################
+STATISTIC --- 2017-08-04 07:47:54
+  maxLH = 20065.8, NDF = 20361, maxLH/NDF = 0.985501
diff --git a/src/musredit_qt6/mupp/examples/2512_tf_histo.msr b/src/musredit_qt6/mupp/examples/2512_tf_histo.msr
new file mode 100644
index 00000000..6c22e48a
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2512_tf_histo.msr
@@ -0,0 +1,95 @@
+YBCO-40nm, T=4.99 K, E=3.72 keV, B=~50(G)/8.65(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.13719   -0.00075    0.00075     
+        2 Sigma       0.3385    -0.0042     0.0042      0       none    
+        3 Ph          15.78     -0.58       0.58        
+        4 Field       50.621    -0.055      0.056       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        516.65    -0.43       0.43        
+        7 N_bkg_L     9.436     -0.054      0.054       
+# T
+        8 RelPh_T     -89.74    -0.72       0.72        
+        9 N0_T        538.32    -0.43       0.43        
+       10 N_bkg_T     10.072    -0.056      0.055       
+# R
+       11 RelPh_R     180.80    -0.70       0.70        
+       12 alpha_LR    1.0196    -0.0012     0.0012      
+       13 N_bkg_R     10.468    -0.056      0.056       
+# B
+       14 RelPh_B     90.57     -0.73       0.73        
+       15 alpha_TB    0.9212    -0.0011     0.0011      
+       16 N_bkg_B     9.115     -0.053      0.053       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2512 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2512 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2512 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2512 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 500
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+
+###############################################################
+STATISTIC --- 2017-08-04 08:51:06
+  maxLH = 20444.1, NDF = 20361, maxLH/NDF = 1.004079
diff --git a/src/musredit_qt6/mupp/examples/2516_tf_histo.msr b/src/musredit_qt6/mupp/examples/2516_tf_histo.msr
new file mode 100644
index 00000000..4c0fa411
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2516_tf_histo.msr
@@ -0,0 +1,95 @@
+YBCO-40nm, T=120.01 K, E=3.79 keV, B=~800(G)/138.41(A), Tr/Sa=12.02/7.29 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.07612   -0.00096    0.00097     
+        2 Sigma       0.429     -0.010      0.010       0       none    
+        3 Ph          196.3     -1.5        1.5         
+        4 Field       805.59    -0.17       0.17        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        323.67    -0.33       0.33        
+        7 N_bkg_L     5.434     -0.042      0.042       
+# T
+        8 RelPh_T     -81.1     -1.8        1.8         
+        9 N0_T        294.12    -0.32       0.31        
+       10 N_bkg_T     5.244     -0.041      0.041       
+# R
+       11 RelPh_R     188.3     -1.7        1.7         
+       12 alpha_LR    1.0106    -0.0015     0.0015      
+       13 N_bkg_R     6.206     -0.043      0.043       
+# B
+       14 RelPh_B     95.1      -1.7        1.8         
+       15 alpha_TB    1.1764    -0.0017     0.0017      
+       16 N_bkg_B     5.910     -0.044      0.044       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2516 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         41 45 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2516 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         42 46 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2516 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         43 47 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2516 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         44 48 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 50
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+
+###############################################################
+STATISTIC --- 2017-08-04 12:38:19
+  maxLH = 20356.2, NDF = 20365, maxLH/NDF = 0.999568
diff --git a/src/musredit_qt6/mupp/examples/2517_tf_histo.msr b/src/musredit_qt6/mupp/examples/2517_tf_histo.msr
new file mode 100644
index 00000000..a89d1d7e
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2517_tf_histo.msr
@@ -0,0 +1,95 @@
+YBCO-40nm, T=120.00 K, E=3.79 keV, B=~800(G)/138.41(A), Tr/Sa=12.02/7.29 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.0744    -0.0023     0.0024      
+        2 Sigma       0.357     -0.023      0.024       0       none    
+        3 Ph          189.3     -3.6        3.6         
+        4 Field       805.92    -0.36       0.35        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        50.34     -0.13       0.13        
+        7 N_bkg_L     0.872     -0.017      0.017       
+# T
+        8 RelPh_T     -81.8     -4.4        4.4         
+        9 N0_T        44.87     -0.12       0.12        
+       10 N_bkg_T     0.809     -0.016      0.016       
+# R
+       11 RelPh_R     195.0     -4.3        4.3         
+       12 alpha_LR    0.9807    -0.0036     0.0036      
+       13 N_bkg_R     0.923     -0.017      0.017       
+# B
+       14 RelPh_B     102.8     -4.3        4.3         
+       15 alpha_TB    1.1769    -0.0044     0.0044      
+       16 N_bkg_B     0.946     -0.017      0.017       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2517 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         41 45 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2517 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         42 46 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2517 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         43 47 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2517 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         44 48 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 50
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+
+###############################################################
+STATISTIC --- 2017-08-04 12:51:58
+  maxLH = 20794.6, NDF = 20365, maxLH/NDF = 1.021097
diff --git a/src/musredit_qt6/mupp/examples/2518_tf_histo.msr b/src/musredit_qt6/mupp/examples/2518_tf_histo.msr
new file mode 100644
index 00000000..05852e79
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2518_tf_histo.msr
@@ -0,0 +1,95 @@
+YBCO-40nm, T=120.00 K, E=3.79 keV, B=~800(G)/138.41(A), Tr/Sa=12.02/7.29 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.0813    -0.0024     0.0024      
+        2 Sigma       0.413     -0.022      0.023       0       none    
+        3 Ph          198.9     -3.4        3.4         
+        4 Field       805.18    -0.38       0.38        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        50.32     -0.13       0.13        
+        7 N_bkg_L     0.861     -0.017      0.017       
+# T
+        8 RelPh_T     -87.2     -4.1        4.2         
+        9 N0_T        45.75     -0.12       0.12        
+       10 N_bkg_T     0.826     -0.016      0.016       
+# R
+       11 RelPh_R     184.1     -4.0        4.0         
+       12 alpha_LR    0.9898    -0.0036     0.0037      
+       13 N_bkg_R     0.952     -0.017      0.017       
+# B
+       14 RelPh_B     94.5      -4.1        4.1         
+       15 alpha_TB    1.1472    -0.0043     0.0043      
+       16 N_bkg_B     0.910     -0.017      0.017       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2518 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         41 45 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2518 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         42 46 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2518 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         43 47 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2518 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         44 48 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 50
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+
+###############################################################
+STATISTIC --- 2017-08-04 13:07:03
+  maxLH = 20946.8, NDF = 20365, maxLH/NDF = 1.028570
diff --git a/src/musredit_qt6/mupp/examples/2519_tf_histo.msr b/src/musredit_qt6/mupp/examples/2519_tf_histo.msr
new file mode 100644
index 00000000..391b9623
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2519_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=119.99 K, E=24.26 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/-9.99 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.16934   -0.00091    0.00092     
+        2 Sigma       0.0504    -0.0087     0.0076      0       none    
+        3 Ph          -151.89   -0.62       0.62        
+        4 Field       1513.140  -0.032      0.032       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        199.87    -0.26       0.26        
+        7 N_bkg_L     3.485     -0.033      0.033       
+# T
+        8 RelPh_T     -91.07    -0.75       0.76        
+        9 N0_T        203.23    -0.26       0.26        
+       10 N_bkg_T     3.652     -0.034      0.034       
+# R
+       11 RelPh_R     180.84    -0.77       0.77        
+       12 alpha_LR    1.0068    -0.0019     0.0018      
+       13 N_bkg_R     3.970     -0.034      0.034       
+# B
+       14 RelPh_B     88.76     -0.77       0.78        
+       15 alpha_TB    0.9521    -0.0017     0.0018      
+       16 N_bkg_B     3.508     -0.033      0.033       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2519 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2519 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2519 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2519 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 14:12:14
+  maxLH = 20465.5, NDF = 20361, maxLH/NDF = 1.005132
diff --git a/src/musredit_qt6/mupp/examples/2520_tf_histo.msr b/src/musredit_qt6/mupp/examples/2520_tf_histo.msr
new file mode 100644
index 00000000..d0edb07b
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2520_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=120.00 K, E=21.76 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-7.50 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.16434   -0.00091    0.00092     
+        2 Sigma       0.026     -0.026      0.013       0       none    
+        3 Ph          -153.67   -0.64       0.63        
+        4 Field       1513.255  -0.033      0.033       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        200.43    -0.26       0.26        
+        7 N_bkg_L     3.509     -0.033      0.033       
+# T
+        8 RelPh_T     -89.10    -0.77       0.78        
+        9 N0_T        203.53    -0.27       0.26        
+       10 N_bkg_T     3.735     -0.034      0.034       
+# R
+       11 RelPh_R     180.88    -0.78       0.79        
+       12 alpha_LR    1.0056    -0.0019     0.0018      
+       13 N_bkg_R     3.886     -0.034      0.034       
+# B
+       14 RelPh_B     90.92     -0.78       0.79        
+       15 alpha_TB    0.9541    -0.0017     0.0018      
+       16 N_bkg_B     3.605     -0.033      0.033       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2520 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2520 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2520 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2520 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 14:12:22
+  maxLH = 20707.2, NDF = 20361, maxLH/NDF = 1.017003
diff --git a/src/musredit_qt6/mupp/examples/2521_tf_histo.msr b/src/musredit_qt6/mupp/examples/2521_tf_histo.msr
new file mode 100644
index 00000000..7528b4ed
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2521_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=120.01 K, E=19.26 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-5.00 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.16711   -0.00080    0.00081     
+        2 Sigma       0.0619    -0.0063     0.0058      0       none    
+        3 Ph          -152.11   -0.54       0.55        
+        4 Field       1513.153  -0.029      0.029       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        263.35    -0.29       0.30        
+        7 N_bkg_L     4.647     -0.039      0.038       
+# T
+        8 RelPh_T     -90.62    -0.68       0.66        
+        9 N0_T        267.77    -0.31       0.30        
+       10 N_bkg_T     4.863     -0.038      0.039       
+# R
+       11 RelPh_R     181.79    -0.68       0.66        
+       12 alpha_LR    1.0067    -0.0016     0.0016      
+       13 N_bkg_R     5.119     -0.039      0.039       
+# B
+       14 RelPh_B     91.18     -0.70       0.68        
+       15 alpha_TB    0.9525    -0.0015     0.0016      
+       16 N_bkg_B     4.671     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2521 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2521 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2521 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2521 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 14:44:54
+  maxLH = 20572.5, NDF = 20361, maxLH/NDF = 1.010389
diff --git a/src/musredit_qt6/mupp/examples/2522_tf_histo.msr b/src/musredit_qt6/mupp/examples/2522_tf_histo.msr
new file mode 100644
index 00000000..c362986c
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2522_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=120.00 K, E=16.76 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-2.50 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.16787   -0.00080    0.00080     
+        2 Sigma       0.0558    -0.0069     0.0063      0       none    
+        3 Ph          -151.23   -0.54       0.54        
+        4 Field       1513.118  -0.029      0.029       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        263.47    -0.30       0.30        
+        7 N_bkg_L     4.654     -0.038      0.038       
+# T
+        8 RelPh_T     -91.14    -0.66       0.67        
+        9 N0_T        268.17    -0.30       0.30        
+       10 N_bkg_T     4.819     -0.039      0.039       
+# R
+       11 RelPh_R     181.17    -0.67       0.68        
+       12 alpha_LR    1.0052    -0.0016     0.0016      
+       13 N_bkg_R     5.111     -0.039      0.039       
+# B
+       14 RelPh_B     90.72     -0.67       0.68        
+       15 alpha_TB    0.9499    -0.0015     0.0015      
+       16 N_bkg_B     4.647     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2522 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2522 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2522 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2522 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 15:33:57
+  maxLH = 20241.8, NDF = 20361, maxLH/NDF = 0.994146
diff --git a/src/musredit_qt6/mupp/examples/2523_tf_histo.msr b/src/musredit_qt6/mupp/examples/2523_tf_histo.msr
new file mode 100644
index 00000000..bb1dcd85
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2523_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=120.00 K, E=14.26 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/0.00 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.16521   -0.00080    0.00080     
+        2 Sigma       0.0583    -0.0067     0.0061      0       none    
+        3 Ph          -151.61   -0.56       0.55        
+        4 Field       1513.082  -0.029      0.029       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        263.39    -0.30       0.30        
+        7 N_bkg_L     4.560     -0.038      0.038       
+# T
+        8 RelPh_T     -89.15    -0.68       0.68        
+        9 N0_T        267.35    -0.30       0.30        
+       10 N_bkg_T     4.938     -0.039      0.039       
+# R
+       11 RelPh_R     180.19    -0.68       0.69        
+       12 alpha_LR    1.0052    -0.0016     0.0016      
+       13 N_bkg_R     5.079     -0.039      0.039       
+# B
+       14 RelPh_B     89.84     -0.69       0.69        
+       15 alpha_TB    0.9533    -0.0015     0.0015      
+       16 N_bkg_B     4.604     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2523 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2523 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2523 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2523 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 15:34:11
+  maxLH = 20791.3, NDF = 20361, maxLH/NDF = 1.021131
diff --git a/src/musredit_qt6/mupp/examples/2524_tf_histo.msr b/src/musredit_qt6/mupp/examples/2524_tf_histo.msr
new file mode 100644
index 00000000..285e2629
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2524_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=120.00 K, E=11.77 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/2.50 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.16487   -0.00080    0.00080     
+        2 Sigma       0.0676    -0.0058     0.0054      0       none    
+        3 Ph          -151.23   -0.55       0.57        
+        4 Field       1513.098  -0.030      0.030       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        263.64    -0.30       0.30        
+        7 N_bkg_L     4.523     -0.038      0.038       
+# T
+        8 RelPh_T     -90.51    -0.69       0.67        
+        9 N0_T        267.28    -0.30       0.30        
+       10 N_bkg_T     4.806     -0.038      0.039       
+# R
+       11 RelPh_R     180.31    -0.70       0.68        
+       12 alpha_LR    0.9997    -0.0016     0.0016      
+       13 N_bkg_R     5.061     -0.039      0.039       
+# B
+       14 RelPh_B     90.13     -0.71       0.69        
+       15 alpha_TB    0.9485    -0.0015     0.0015      
+       16 N_bkg_B     4.654     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2524 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2524 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2524 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2524 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 16:00:09
+  maxLH = 20278.6, NDF = 20361, maxLH/NDF = 0.995951
diff --git a/src/musredit_qt6/mupp/examples/2525_tf_histo.msr b/src/musredit_qt6/mupp/examples/2525_tf_histo.msr
new file mode 100644
index 00000000..fde4df62
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2525_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=120.01 K, E=9.26 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/5.00 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.16393   -0.00081    0.00080     
+        2 Sigma       0.0771    -0.0053     0.0050      0       none    
+        3 Ph          -152.46   -0.57       0.56        
+        4 Field       1513.117  -0.031      0.031       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        263.73    -0.30       0.30        
+        7 N_bkg_L     4.689     -0.039      0.038       
+# T
+        8 RelPh_T     -89.47    -0.69       0.69        
+        9 N0_T        269.40    -0.30       0.30        
+       10 N_bkg_T     4.741     -0.039      0.039       
+# R
+       11 RelPh_R     181.18    -0.69       0.69        
+       12 alpha_LR    1.0054    -0.0016     0.0016      
+       13 N_bkg_R     4.991     -0.039      0.039       
+# B
+       14 RelPh_B     91.51     -0.71       0.71        
+       15 alpha_TB    0.9437    -0.0015     0.0015      
+       16 N_bkg_B     4.576     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2525 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2525 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2525 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2525 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 16:11:03
+  maxLH = 20462.3, NDF = 20361, maxLH/NDF = 1.004973
diff --git a/src/musredit_qt6/mupp/examples/2526_tf_histo.msr b/src/musredit_qt6/mupp/examples/2526_tf_histo.msr
new file mode 100644
index 00000000..69da9920
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2526_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=120.00 K, E=6.77 keV, B=~1500(G)/259.53(A), Tr/Sa=15.02/7.50 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.15957   -0.00081    0.00081     
+        2 Sigma       0.0741    -0.0057     0.0053      0       none    
+        3 Ph          -151.80   -0.58       0.58        
+        4 Field       1513.059  -0.031      0.031       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        263.18    -0.30       0.30        
+        7 N_bkg_L     4.709     -0.038      0.039       
+# T
+        8 RelPh_T     -90.14    -0.71       0.71        
+        9 N0_T        269.04    -0.30       0.30        
+       10 N_bkg_T     4.836     -0.039      0.039       
+# R
+       11 RelPh_R     180.64    -0.71       0.71        
+       12 alpha_LR    1.0099    -0.0016     0.0016      
+       13 N_bkg_R     5.117     -0.039      0.039       
+# B
+       14 RelPh_B     90.77     -0.72       0.73        
+       15 alpha_TB    0.9449    -0.0015     0.0015      
+       16 N_bkg_B     4.699     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2526 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2526 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2526 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2526 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 16:30:13
+  maxLH = 20674.9, NDF = 20361, maxLH/NDF = 1.015416
diff --git a/src/musredit_qt6/mupp/examples/2527_tf_histo.msr b/src/musredit_qt6/mupp/examples/2527_tf_histo.msr
new file mode 100644
index 00000000..b661e18c
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2527_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=120.00 K, E=4.27 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/9.99 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.15359   -0.00081    0.00081     
+        2 Sigma       0.0709    -0.0062     0.0058      0       none    
+        3 Ph          -149.66   -0.60       0.59        
+        4 Field       1513.069  -0.032      0.032       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        263.72    -0.30       0.30        
+        7 N_bkg_L     4.660     -0.038      0.038       
+# T
+        8 RelPh_T     -92.13    -0.73       0.74        
+        9 N0_T        269.60    -0.30       0.30        
+       10 N_bkg_T     4.893     -0.039      0.039       
+# R
+       11 RelPh_R     180.65    -0.74       0.75        
+       12 alpha_LR    1.0030    -0.0016     0.0016      
+       13 N_bkg_R     5.050     -0.039      0.039       
+# B
+       14 RelPh_B     88.51     -0.75       0.76        
+       15 alpha_TB    0.9391    -0.0015     0.0015      
+       16 N_bkg_B     4.642     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2527 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2527 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2527 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2527 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 16:50:47
+  maxLH = 20689.6, NDF = 20361, maxLH/NDF = 1.016138
diff --git a/src/musredit_qt6/mupp/examples/2528_tf_histo.msr b/src/musredit_qt6/mupp/examples/2528_tf_histo.msr
new file mode 100644
index 00000000..f5ac8c10
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2528_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=5.01 K, E=5.27 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/9.00 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1307    -0.0018     0.0018      
+        2 Sigma       1.276     -0.025      0.025       0       none    
+        3 Ph          -139.5    -1.5        1.4         
+        4 Field       1504.23   -0.39       0.40        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        262.85    -0.30       0.30        
+        7 N_bkg_L     4.611     -0.038      0.038       
+# T
+        8 RelPh_T     -87.5     -1.7        1.7         
+        9 N0_T        269.20    -0.30       0.30        
+       10 N_bkg_T     4.830     -0.039      0.039       
+# R
+       11 RelPh_R     178.1     -1.7        1.7         
+       12 alpha_LR    1.0069    -0.0016     0.0016      
+       13 N_bkg_R     5.114     -0.039      0.039       
+# B
+       14 RelPh_B     89.6      -1.7        1.7         
+       15 alpha_TB    0.9394    -0.0015     0.0015      
+       16 N_bkg_B     4.564     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2528 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2528 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2528 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2528 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 18:08:23
+  maxLH = 20497.6, NDF = 20361, maxLH/NDF = 1.006707
diff --git a/src/musredit_qt6/mupp/examples/2529_tf_histo.msr b/src/musredit_qt6/mupp/examples/2529_tf_histo.msr
new file mode 100644
index 00000000..46488ac7
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2529_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=5.00 K, E=6.77 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/7.50 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1285    -0.0018     0.0017      
+        2 Sigma       1.295     -0.025      0.025       0       none    
+        3 Ph          -143.0    -1.5        1.5         
+        4 Field       1507.23   -0.40       0.40        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        262.67    -0.30       0.30        
+        7 N_bkg_L     4.636     -0.038      0.038       
+# T
+        8 RelPh_T     -91.3     -1.7        1.7         
+        9 N0_T        268.61    -0.30       0.30        
+       10 N_bkg_T     4.840     -0.039      0.039       
+# R
+       11 RelPh_R     178.3     -1.7        1.7         
+       12 alpha_LR    1.0105    -0.0016     0.0016      
+       13 N_bkg_R     5.149     -0.039      0.039       
+# B
+       14 RelPh_B     88.5      -1.8        1.8         
+       15 alpha_TB    0.9447    -0.0015     0.0015      
+       16 N_bkg_B     4.557     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2529 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2529 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2529 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2529 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 18:37:23
+  maxLH = 20497.7, NDF = 20361, maxLH/NDF = 1.006713
diff --git a/src/musredit_qt6/mupp/examples/2530_tf_histo.msr b/src/musredit_qt6/mupp/examples/2530_tf_histo.msr
new file mode 100644
index 00000000..61ca1056
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2530_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=4.99 K, E=9.26 keV, B=~1500(G)/259.53(A), Tr/Sa=15.02/5.00 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1268    -0.0017     0.0017      
+        2 Sigma       1.170     -0.022      0.022       0       none    
+        3 Ph          -146.0    -1.5        1.4         
+        4 Field       1511.56   -0.37       0.38        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        248.36    -0.30       0.30        
+        7 N_bkg_L     6.824     -0.041      0.041       
+# T
+        8 RelPh_T     -96.6     -1.7        1.7         
+        9 N0_T        254.82    -0.30       0.30        
+       10 N_bkg_T     7.073     -0.042      0.042       
+# R
+       11 RelPh_R     177.1     -1.7        1.7         
+       12 alpha_LR    1.0124    -0.0017     0.0017      
+       13 N_bkg_R     7.658     -0.043      0.042       
+# B
+       14 RelPh_B     84.5      -1.8        1.8         
+       15 alpha_TB    0.9465    -0.0016     0.0016      
+       16 N_bkg_B     6.801     -0.041      0.041       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2530 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2530 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2530 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2530 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 20:04:38
+  maxLH = 20224.1, NDF = 20361, maxLH/NDF = 0.993277
diff --git a/src/musredit_qt6/mupp/examples/2531_tf_histo.msr b/src/musredit_qt6/mupp/examples/2531_tf_histo.msr
new file mode 100644
index 00000000..0153974c
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2531_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=5.00 K, E=11.76 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/2.50 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1140    -0.0014     0.0014      
+        2 Sigma       0.804     -0.016      0.016       0       none    
+        3 Ph          -151.3    -1.3        1.3         
+        4 Field       1514.28   -0.24       0.24        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        263.05    -0.30       0.30        
+        7 N_bkg_L     4.629     -0.038      0.038       
+# T
+        8 RelPh_T     -89.2     -1.6        1.6         
+        9 N0_T        267.73    -0.30       0.30        
+       10 N_bkg_T     4.794     -0.039      0.039       
+# R
+       11 RelPh_R     181.6     -1.6        1.6         
+       12 alpha_LR    1.0108    -0.0016     0.0016      
+       13 N_bkg_R     5.149     -0.039      0.039       
+# B
+       14 RelPh_B     87.1      -1.6        1.6         
+       15 alpha_TB    0.9522    -0.0015     0.0015      
+       16 N_bkg_B     4.666     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2531 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2531 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2531 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2531 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 19:29:38
+  maxLH = 20587.8, NDF = 20361, maxLH/NDF = 1.011140
diff --git a/src/musredit_qt6/mupp/examples/2532_tf_histo.msr b/src/musredit_qt6/mupp/examples/2532_tf_histo.msr
new file mode 100644
index 00000000..6130961b
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2532_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=5.00 K, E=14.27 keV, B=~1500(G)/259.53(A), Tr/Sa=15.02/-0.00 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1108    -0.0013     0.0013      
+        2 Sigma       0.566     -0.012      0.012       0       none    
+        3 Ph          -152.2    -1.2        1.2         
+        4 Field       1515.19   -0.16       0.16        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        262.77    -0.30       0.30        
+        7 N_bkg_L     4.568     -0.038      0.038       
+# T
+        8 RelPh_T     -90.5     -1.4        1.4         
+        9 N0_T        266.86    -0.30       0.30        
+       10 N_bkg_T     4.788     -0.039      0.039       
+# R
+       11 RelPh_R     179.8     -1.4        1.4         
+       12 alpha_LR    1.0129    -0.0016     0.0016      
+       13 N_bkg_R     5.145     -0.040      0.039       
+# B
+       14 RelPh_B     89.5      -1.5        1.5         
+       15 alpha_TB    0.9534    -0.0015     0.0015      
+       16 N_bkg_B     4.670     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2532 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2532 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2532 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2532 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 20:03:55
+  maxLH = 20578.7, NDF = 20361, maxLH/NDF = 1.010691
diff --git a/src/musredit_qt6/mupp/examples/2533_tf_histo.msr b/src/musredit_qt6/mupp/examples/2533_tf_histo.msr
new file mode 100644
index 00000000..ec763ec6
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2533_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=4.99 K, E=16.76 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-2.50 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1072    -0.0011     0.0011      
+        2 Sigma       0.4180    -0.0089     0.0090      0       none    
+        3 Ph          -149.2    -1.1        1.1         
+        4 Field       1514.96   -0.12       0.12        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        263.94    -0.30       0.30        
+        7 N_bkg_L     4.515     -0.038      0.038       
+# T
+        8 RelPh_T     -94.2     -1.3        1.3         
+        9 N0_T        264.28    -0.30       0.30        
+       10 N_bkg_T     4.805     -0.039      0.039       
+# R
+       11 RelPh_R     177.3     -1.4        1.4         
+       12 alpha_LR    1.0129    -0.0016     0.0016      
+       13 N_bkg_R     5.059     -0.039      0.039       
+# B
+       14 RelPh_B     87.9      -1.4        1.4         
+       15 alpha_TB    0.9694    -0.0016     0.0016      
+       16 N_bkg_B     4.635     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2533 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2533 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2533 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2533 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 20:24:58
+  maxLH = 20300.8, NDF = 20361, maxLH/NDF = 0.997043
diff --git a/src/musredit_qt6/mupp/examples/2534_tf_histo.msr b/src/musredit_qt6/mupp/examples/2534_tf_histo.msr
new file mode 100644
index 00000000..34b5f2a1
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2534_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=4.99 K, E=19.26 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-5.00 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1043    -0.0010     0.0010      
+        2 Sigma       0.3090    -0.0074     0.0075      0       none    
+        3 Ph          -151.7    -1.0        1.1         
+        4 Field       1514.903  -0.092      0.092       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        262.43    -0.30       0.30        
+        7 N_bkg_L     4.574     -0.038      0.038       
+# T
+        8 RelPh_T     -90.6     -1.3        1.3         
+        9 N0_T        268.19    -0.30       0.30        
+       10 N_bkg_T     4.824     -0.039      0.039       
+# R
+       11 RelPh_R     180.9     -1.3        1.3         
+       12 alpha_LR    1.0128    -0.0016     0.0016      
+       13 N_bkg_R     5.112     -0.039      0.039       
+# B
+       14 RelPh_B     90.8      -1.3        1.3         
+       15 alpha_TB    0.9505    -0.0015     0.0015      
+       16 N_bkg_B     4.593     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2534 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2534 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2534 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2534 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 20:35:46
+  maxLH = 20473.5, NDF = 20361, maxLH/NDF = 1.005528
diff --git a/src/musredit_qt6/mupp/examples/2535_tf_histo.msr b/src/musredit_qt6/mupp/examples/2535_tf_histo.msr
new file mode 100644
index 00000000..21e87448
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2535_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=4.99 K, E=21.76 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-7.50 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.10474   -0.00098    0.00098     
+        2 Sigma       0.2659    -0.0070     0.0071      0       none    
+        3 Ph          -150.4    -1.0        1.0         
+        4 Field       1515.035  -0.080      0.080       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        261.39    -0.30       0.30        
+        7 N_bkg_L     4.543     -0.038      0.038       
+# T
+        8 RelPh_T     -90.9     -1.2        1.2         
+        9 N0_T        268.52    -0.30       0.30        
+       10 N_bkg_T     4.690     -0.039      0.039       
+# R
+       11 RelPh_R     178.2     -1.2        1.2         
+       12 alpha_LR    1.0139    -0.0016     0.0016      
+       13 N_bkg_R     5.083     -0.039      0.039       
+# B
+       14 RelPh_B     89.2      -1.3        1.3         
+       15 alpha_TB    0.9471    -0.0015     0.0015      
+       16 N_bkg_B     4.607     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2535 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2535 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2535 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2535 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 20:58:21
+  maxLH = 20622.1, NDF = 20361, maxLH/NDF = 1.012824
diff --git a/src/musredit_qt6/mupp/examples/2536_tf_histo.msr b/src/musredit_qt6/mupp/examples/2536_tf_histo.msr
new file mode 100644
index 00000000..441a1866
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2536_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=5.00 K, E=24.26 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-9.99 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.10771   -0.00094    0.00094     
+        2 Sigma       0.2397    -0.0062     0.0062      0       none    
+        3 Ph          -152.55   -0.97       0.97        
+        4 Field       1515.146  -0.072      0.073       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        262.19    -0.30       0.30        
+        7 N_bkg_L     4.579     -0.038      0.038       
+# T
+        8 RelPh_T     -89.5     -1.2        1.2         
+        9 N0_T        267.63    -0.30       0.30        
+       10 N_bkg_T     4.748     -0.039      0.039       
+# R
+       11 RelPh_R     179.4     -1.2        1.2         
+       12 alpha_LR    1.0111    -0.0016     0.0016      
+       13 N_bkg_R     5.270     -0.040      0.039       
+# B
+       14 RelPh_B     89.3      -1.2        1.2         
+       15 alpha_TB    0.9562    -0.0015     0.0015      
+       16 N_bkg_B     4.564     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2536 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2536 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2536 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2536 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 21:20:53
+  maxLH = 20230.0, NDF = 20361, maxLH/NDF = 0.993566
diff --git a/src/musredit_qt6/mupp/examples/2537_tf_histo.msr b/src/musredit_qt6/mupp/examples/2537_tf_histo.msr
new file mode 100644
index 00000000..4bbb555f
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2537_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=30.00 K, E=24.26 keV, B=~1500(G)/259.53(A), Tr/Sa=15.02/-9.99 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.08348   -0.00091    0.00091     
+        2 Sigma       0.2063    -0.0076     0.0075      0       none    
+        3 Ph          -153.4    -1.2        1.2         
+        4 Field       1515.221  -0.085      0.084       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        260.74    -0.30       0.30        
+        7 N_bkg_L     4.621     -0.038      0.038       
+# T
+        8 RelPh_T     -92.4     -1.5        1.5         
+        9 N0_T        267.44    -0.30       0.30        
+       10 N_bkg_T     4.696     -0.039      0.038       
+# R
+       11 RelPh_R     178.1     -1.5        1.5         
+       12 alpha_LR    1.0208    -0.0016     0.0016      
+       13 N_bkg_R     5.086     -0.039      0.039       
+# B
+       14 RelPh_B     89.6      -1.5        1.5         
+       15 alpha_TB    0.9545    -0.0015     0.0015      
+       16 N_bkg_B     4.630     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2537 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2537 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2537 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2537 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 22:03:04
+  maxLH = 20481.2, NDF = 20361, maxLH/NDF = 1.005902
diff --git a/src/musredit_qt6/mupp/examples/2538_tf_histo.msr b/src/musredit_qt6/mupp/examples/2538_tf_histo.msr
new file mode 100644
index 00000000..6223cc5f
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2538_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=30.00 K, E=21.76 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-7.50 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.07978   -0.00092    0.00093     
+        2 Sigma       0.2078    -0.0082     0.0083      0       none    
+        3 Ph          -152.2    -1.3        1.3         
+        4 Field       1514.882  -0.087      0.087       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        260.97    -0.30       0.30        
+        7 N_bkg_L     4.582     -0.038      0.038       
+# T
+        8 RelPh_T     -91.2     -1.5        1.5         
+        9 N0_T        267.30    -0.30       0.30        
+       10 N_bkg_T     4.755     -0.039      0.039       
+# R
+       11 RelPh_R     181.0     -1.6        1.6         
+       12 alpha_LR    1.0185    -0.0016     0.0016      
+       13 N_bkg_R     5.100     -0.039      0.039       
+# B
+       14 RelPh_B     87.6      -1.6        1.6         
+       15 alpha_TB    0.9575    -0.0015     0.0015      
+       16 N_bkg_B     4.699     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2538 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2538 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2538 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2538 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 22:13:30
+  maxLH = 20504.8, NDF = 20361, maxLH/NDF = 1.007062
diff --git a/src/musredit_qt6/mupp/examples/2539_tf_histo.msr b/src/musredit_qt6/mupp/examples/2539_tf_histo.msr
new file mode 100644
index 00000000..2aa64696
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2539_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=30.00 K, E=19.26 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/-5.00 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.08063   -0.00100    0.00100     
+        2 Sigma       0.2839    -0.0095     0.0096      0       none    
+        3 Ph          -154.9    -1.3        1.3         
+        4 Field       1515.06   -0.11       0.11        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        261.98    -0.30       0.30        
+        7 N_bkg_L     4.560     -0.038      0.038       
+# T
+        8 RelPh_T     -87.7     -1.6        1.6         
+        9 N0_T        268.62    -0.30       0.30        
+       10 N_bkg_T     4.780     -0.039      0.039       
+# R
+       11 RelPh_R     180.4     -1.7        1.6         
+       12 alpha_LR    1.0135    -0.0016     0.0016      
+       13 N_bkg_R     5.194     -0.039      0.039       
+# B
+       14 RelPh_B     91.6      -1.6        1.6         
+       15 alpha_TB    0.9534    -0.0015     0.0015      
+       16 N_bkg_B     4.484     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2539 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2539 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2539 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2539 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-04 22:35:01
+  maxLH = 20460.1, NDF = 20361, maxLH/NDF = 1.004865
diff --git a/src/musredit_qt6/mupp/examples/2540_tf_histo.msr b/src/musredit_qt6/mupp/examples/2540_tf_histo.msr
new file mode 100644
index 00000000..e5a6e185
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2540_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=30.00 K, E=16.76 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-2.50 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.0837    -0.0011     0.0011      
+        2 Sigma       0.366     -0.011      0.011       0       none    
+        3 Ph          -149.9    -1.3        1.3         
+        4 Field       1514.86   -0.13       0.13        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        259.64    -0.30       0.29        
+        7 N_bkg_L     4.465     -0.038      0.038       
+# T
+        8 RelPh_T     -93.5     -1.7        1.7         
+        9 N0_T        265.43    -0.30       0.30        
+       10 N_bkg_T     4.757     -0.039      0.039       
+# R
+       11 RelPh_R     174.2     -1.7        1.7         
+       12 alpha_LR    1.0139    -0.0016     0.0017      
+       13 N_bkg_R     5.005     -0.039      0.039       
+# B
+       14 RelPh_B     90.1      -1.7        1.7         
+       15 alpha_TB    0.9547    -0.0015     0.0015      
+       16 N_bkg_B     4.445     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2540 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2540 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2540 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2540 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-05 05:49:42
+  maxLH = 20779.3, NDF = 20361, maxLH/NDF = 1.020545
diff --git a/src/musredit_qt6/mupp/examples/2541_tf_histo.msr b/src/musredit_qt6/mupp/examples/2541_tf_histo.msr
new file mode 100644
index 00000000..7d46f737
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2541_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=30.00 K, E=14.26 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/0.00 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.0932    -0.0012     0.0012      
+        2 Sigma       0.514     -0.013      0.013       0       none    
+        3 Ph          -154.3    -1.3        1.3         
+        4 Field       1514.60   -0.17       0.17        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        262.63    -0.30       0.30        
+        7 N_bkg_L     4.373     -0.038      0.038       
+# T
+        8 RelPh_T     -87.8     -1.6        1.6         
+        9 N0_T        268.94    -0.30       0.30        
+       10 N_bkg_T     4.630     -0.039      0.039       
+# R
+       11 RelPh_R     179.6     -1.6        1.6         
+       12 alpha_LR    1.0106    -0.0016     0.0016      
+       13 N_bkg_R     5.126     -0.039      0.039       
+# B
+       14 RelPh_B     90.0      -1.7        1.7         
+       15 alpha_TB    0.9504    -0.0015     0.0015      
+       16 N_bkg_B     4.514     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2541 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2541 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2541 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2541 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-05 05:53:21
+  maxLH = 20664.5, NDF = 20361, maxLH/NDF = 1.014906
diff --git a/src/musredit_qt6/mupp/examples/2542_tf_histo.msr b/src/musredit_qt6/mupp/examples/2542_tf_histo.msr
new file mode 100644
index 00000000..63fb9b44
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2542_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=30.00 K, E=11.76 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/2.50 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1078    -0.0014     0.0014      
+        2 Sigma       0.776     -0.017      0.017       0       none    
+        3 Ph          -152.4    -1.4        1.4         
+        4 Field       1513.86   -0.25       0.24        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        262.04    -0.30       0.30        
+        7 N_bkg_L     4.510     -0.038      0.038       
+# T
+        8 RelPh_T     -86.9     -1.6        1.6         
+        9 N0_T        268.88    -0.30       0.30        
+       10 N_bkg_T     4.803     -0.039      0.039       
+# R
+       11 RelPh_R     179.4     -1.6        1.7         
+       12 alpha_LR    1.0167    -0.0016     0.0016      
+       13 N_bkg_R     5.099     -0.039      0.039       
+# B
+       14 RelPh_B     88.5      -1.7        1.7         
+       15 alpha_TB    0.9521    -0.0015     0.0015      
+       16 N_bkg_B     4.448     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2542 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2542 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2542 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2542 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-05 05:53:39
+  maxLH = 20231.1, NDF = 20361, maxLH/NDF = 0.993620
diff --git a/src/musredit_qt6/mupp/examples/2543_tf_histo.msr b/src/musredit_qt6/mupp/examples/2543_tf_histo.msr
new file mode 100644
index 00000000..6a322277
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2543_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=30.00 K, E=9.26 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/5.00 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1273    -0.0016     0.0016      
+        2 Sigma       1.025     -0.018      0.019       0       none    
+        3 Ph          -149.6    -1.3        1.3         
+        4 Field       1510.71   -0.30       0.30        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        261.52    -0.29       0.30        
+        7 N_bkg_L     4.497     -0.038      0.038       
+# T
+        8 RelPh_T     -88.0     -1.6        1.6         
+        9 N0_T        268.62    -0.30       0.30        
+       10 N_bkg_T     4.729     -0.039      0.039       
+# R
+       11 RelPh_R     181.0     -1.6        1.6         
+       12 alpha_LR    1.0176    -0.0016     0.0016      
+       13 N_bkg_R     5.077     -0.039      0.039       
+# B
+       14 RelPh_B     91.7      -1.6        1.6         
+       15 alpha_TB    0.9499    -0.0015     0.0015      
+       16 N_bkg_B     4.480     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2543 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2543 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2543 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2543 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-05 05:54:11
+  maxLH = 20527.6, NDF = 20361, maxLH/NDF = 1.008184
diff --git a/src/musredit_qt6/mupp/examples/2544_tf_histo.msr b/src/musredit_qt6/mupp/examples/2544_tf_histo.msr
new file mode 100644
index 00000000..28b5156d
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2544_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=30.00 K, E=6.77 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/7.50 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1417    -0.0016     0.0017      
+        2 Sigma       1.144     -0.019      0.019       0       none    
+        3 Ph          -144.9    -1.3        1.3         
+        4 Field       1508.39   -0.31       0.31        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        261.99    -0.30       0.30        
+        7 N_bkg_L     4.442     -0.038      0.038       
+# T
+        8 RelPh_T     -92.4     -1.5        1.5         
+        9 N0_T        268.51    -0.30       0.30        
+       10 N_bkg_T     4.721     -0.039      0.039       
+# R
+       11 RelPh_R     180.8     -1.5        1.5         
+       12 alpha_LR    1.0138    -0.0016     0.0016      
+       13 N_bkg_R     5.004     -0.039      0.039       
+# B
+       14 RelPh_B     91.2      -1.5        1.5         
+       15 alpha_TB    0.9496    -0.0015     0.0015      
+       16 N_bkg_B     4.493     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2544 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2544 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2544 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2544 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-05 05:54:40
+  maxLH = 20633.8, NDF = 20361, maxLH/NDF = 1.013399
diff --git a/src/musredit_qt6/mupp/examples/2545_tf_histo.msr b/src/musredit_qt6/mupp/examples/2545_tf_histo.msr
new file mode 100644
index 00000000..1c3ad705
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2545_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=60.01 K, E=6.77 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/7.50 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1476    -0.0013     0.0013      
+        2 Sigma       0.735     -0.010      0.011       0       none    
+        3 Ph          -146.78   -0.99       1.00        
+        4 Field       1510.91   -0.17       0.17        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        261.89    -0.29       0.30        
+        7 N_bkg_L     4.458     -0.038      0.038       
+# T
+        8 RelPh_T     -87.9     -1.2        1.2         
+        9 N0_T        268.51    -0.30       0.30        
+       10 N_bkg_T     4.690     -0.039      0.039       
+# R
+       11 RelPh_R     179.6     -1.2        1.2         
+       12 alpha_LR    1.0155    -0.0016     0.0016      
+       13 N_bkg_R     5.098     -0.039      0.039       
+# B
+       14 RelPh_B     91.4      -1.2        1.2         
+       15 alpha_TB    0.9506    -0.0015     0.0015      
+       16 N_bkg_B     4.481     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2545 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2545 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2545 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2545 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-05 05:55:04
+  maxLH = 20613.6, NDF = 20361, maxLH/NDF = 1.012405
diff --git a/src/musredit_qt6/mupp/examples/2546_tf_histo.msr b/src/musredit_qt6/mupp/examples/2546_tf_histo.msr
new file mode 100644
index 00000000..f45fb3e3
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2546_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=59.99 K, E=9.26 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/5.00 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1535    -0.0012     0.0013      
+        2 Sigma       0.5960    -0.0083     0.0085      0       none    
+        3 Ph          -148.84   -0.89       0.88        
+        4 Field       1512.77   -0.12       0.13        
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        262.18    -0.30       0.30        
+        7 N_bkg_L     4.427     -0.038      0.038       
+# T
+        8 RelPh_T     -87.5     -1.0        1.0         
+        9 N0_T        268.62    -0.30       0.30        
+       10 N_bkg_T     4.759     -0.039      0.039       
+# R
+       11 RelPh_R     179.5     -1.1        1.1         
+       12 alpha_LR    1.0177    -0.0016     0.0016      
+       13 N_bkg_R     4.994     -0.039      0.039       
+# B
+       14 RelPh_B     89.3      -1.1        1.1         
+       15 alpha_TB    0.9487    -0.0015     0.0015      
+       16 N_bkg_B     4.516     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2546 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2546 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2546 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2546 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-05 05:57:44
+  maxLH = 20472.6, NDF = 20361, maxLH/NDF = 1.005482
diff --git a/src/musredit_qt6/mupp/examples/2547_tf_histo.msr b/src/musredit_qt6/mupp/examples/2547_tf_histo.msr
new file mode 100644
index 00000000..1db058ce
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2547_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=60.00 K, E=11.76 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/2.50 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.1513    -0.0011     0.0011      
+        2 Sigma       0.4161    -0.0062     0.0063      0       none    
+        3 Ph          -150.95   -0.79       0.79        
+        4 Field       1514.144  -0.085      0.085       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        262.23    -0.30       0.29        
+        7 N_bkg_L     4.478     -0.038      0.039       
+# T
+        8 RelPh_T     -91.48    -0.95       0.95        
+        9 N0_T        269.03    -0.30       0.30        
+       10 N_bkg_T     4.717     -0.039      0.039       
+# R
+       11 RelPh_R     179.73    -0.96       0.96        
+       12 alpha_LR    1.0134    -0.0016     0.0016      
+       13 N_bkg_R     4.993     -0.039      0.039       
+# B
+       14 RelPh_B     89.12     -0.97       0.97        
+       15 alpha_TB    0.9471    -0.0015     0.0015      
+       16 N_bkg_B     4.442     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2547 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2547 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2547 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2547 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-05 05:58:07
+  maxLH = 20270.1, NDF = 20361, maxLH/NDF = 0.995536
diff --git a/src/musredit_qt6/mupp/examples/2548_tf_histo.msr b/src/musredit_qt6/mupp/examples/2548_tf_histo.msr
new file mode 100644
index 00000000..edffd4cb
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2548_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=60.01 K, E=14.27 keV, B=~1500(G)/259.53(A), Tr/Sa=15.02/-0.00 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.15785   -0.00099    0.00099     
+        2 Sigma       0.3103    -0.0047     0.0047      0       none    
+        3 Ph          -153.17   -0.70       0.70        
+        4 Field       1514.501  -0.062      0.062       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        261.95    -0.30       0.30        
+        7 N_bkg_L     4.515     -0.038      0.038       
+# T
+        8 RelPh_T     -89.61    -0.84       0.84        
+        9 N0_T        269.40    -0.30       0.30        
+       10 N_bkg_T     4.726     -0.039      0.039       
+# R
+       11 RelPh_R     179.84    -0.85       0.86        
+       12 alpha_LR    1.0163    -0.0016     0.0016      
+       13 N_bkg_R     5.090     -0.039      0.039       
+# B
+       14 RelPh_B     92.59     -0.86       0.86        
+       15 alpha_TB    0.9473    -0.0015     0.0015      
+       16 N_bkg_B     4.501     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2548 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2548 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2548 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2548 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-05 05:58:24
+  maxLH = 20649.4, NDF = 20361, maxLH/NDF = 1.014166
diff --git a/src/musredit_qt6/mupp/examples/2549_tf_histo.msr b/src/musredit_qt6/mupp/examples/2549_tf_histo.msr
new file mode 100644
index 00000000..87c2c5fa
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2549_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=60.01 K, E=16.76 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/-2.50 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.15722   -0.00090    0.00091     
+        2 Sigma       0.2120    -0.0040     0.0040      0       none    
+        3 Ph          -153.06   -0.65       0.65        
+        4 Field       1514.458  -0.046      0.046       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        261.81    -0.30       0.30        
+        7 N_bkg_L     4.604     -0.038      0.038       
+# T
+        8 RelPh_T     -89.15    -0.79       0.79        
+        9 N0_T        268.37    -0.30       0.30        
+       10 N_bkg_T     4.703     -0.039      0.039       
+# R
+       11 RelPh_R     180.50    -0.80       0.79        
+       12 alpha_LR    1.0148    -0.0016     0.0016      
+       13 N_bkg_R     5.109     -0.039      0.039       
+# B
+       14 RelPh_B     90.96     -0.80       0.80        
+       15 alpha_TB    0.9532    -0.0015     0.0015      
+       16 N_bkg_B     4.504     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2549 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2549 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2549 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2549 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-05 05:58:36
+  maxLH = 20378.0, NDF = 20361, maxLH/NDF = 1.000833
diff --git a/src/musredit_qt6/mupp/examples/2550_tf_histo.msr b/src/musredit_qt6/mupp/examples/2550_tf_histo.msr
new file mode 100644
index 00000000..cb00dc2b
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2550_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=60.00 K, E=19.26 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-5.00 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.16082   -0.00087    0.00087     
+        2 Sigma       0.1791    -0.0038     0.0037      0       none    
+        3 Ph          -152.69   -0.62       0.62        
+        4 Field       1514.425  -0.041      0.041       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        261.91    -0.29       0.30        
+        7 N_bkg_L     4.489     -0.038      0.038       
+# T
+        8 RelPh_T     -89.39    -0.75       0.75        
+        9 N0_T        268.52    -0.30       0.30        
+       10 N_bkg_T     4.747     -0.039      0.039       
+# R
+       11 RelPh_R     180.20    -0.75       0.75        
+       12 alpha_LR    1.0184    -0.0016     0.0016      
+       13 N_bkg_R     5.031     -0.039      0.039       
+# B
+       14 RelPh_B     90.14     -0.77       0.77        
+       15 alpha_TB    0.9547    -0.0015     0.0015      
+       16 N_bkg_B     4.476     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2550 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2550 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2550 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2550 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-05 05:58:46
+  maxLH = 20203.3, NDF = 20361, maxLH/NDF = 0.992254
diff --git a/src/musredit_qt6/mupp/examples/2551_tf_histo.msr b/src/musredit_qt6/mupp/examples/2551_tf_histo.msr
new file mode 100644
index 00000000..139d1eac
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2551_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=59.98 K, E=21.76 keV, B=~1500(G)/259.53(A), Tr/Sa=15.02/-7.50 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.16364   -0.00085    0.00085     
+        2 Sigma       0.1516    -0.0037     0.0037      0       none    
+        3 Ph          -152.29   -0.60       0.60        
+        4 Field       1514.420  -0.037      0.037       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        262.97    -0.30       0.30        
+        7 N_bkg_L     4.458     -0.038      0.038       
+# T
+        8 RelPh_T     -91.12    -0.72       0.72        
+        9 N0_T        269.33    -0.30       0.30        
+       10 N_bkg_T     4.670     -0.038      0.039       
+# R
+       11 RelPh_R     179.28    -0.73       0.73        
+       12 alpha_LR    1.0160    -0.0016     0.0016      
+       13 N_bkg_R     5.075     -0.039      0.039       
+# B
+       14 RelPh_B     90.38     -0.74       0.74        
+       15 alpha_TB    0.9519    -0.0015     0.0015      
+       16 N_bkg_B     4.514     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2551 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2551 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2551 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2551 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-05 05:58:57
+  maxLH = 20545.3, NDF = 20361, maxLH/NDF = 1.009054
diff --git a/src/musredit_qt6/mupp/examples/2552_tf_histo.msr b/src/musredit_qt6/mupp/examples/2552_tf_histo.msr
new file mode 100644
index 00000000..c2317a29
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/2552_tf_histo.msr
@@ -0,0 +1,96 @@
+YBCO-40nm, T=60.00 K, E=24.26 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-9.99 kV, SR=-10.00
+###############################################################
+FITPARAMETER
+#      Nr. Name       Value      Step       Pos_Error   Boundaries
+        1 Asy         0.16464   -0.00083    0.00083     
+        2 Sigma       0.1287    -0.0039     0.0038      0       none    
+        3 Ph          -153.79   -0.58       0.58        
+        4 Field       1514.540  -0.034      0.034       
+# L
+        5 RelPh_L     0         0           none        
+        6 N0_L        263.23    -0.30       0.30        
+        7 N_bkg_L     4.432     -0.038      0.038       
+# T
+        8 RelPh_T     -88.82    -0.71       0.71        
+        9 N0_T        267.99    -0.30       0.30        
+       10 N_bkg_T     4.671     -0.038      0.039       
+# R
+       11 RelPh_R     180.89    -0.71       0.71        
+       12 alpha_LR    1.0159    -0.0016     0.0016      
+       13 N_bkg_R     4.965     -0.039      0.039       
+# B
+       14 RelPh_B     91.04     -0.72       0.72        
+       15 alpha_TB    0.9562    -0.0015     0.0015      
+       16 N_bkg_B     4.534     -0.038      0.038       
+
+###############################################################
+THEORY
+asymmetry      1
+simpleGss      2          (rate)
+TFieldCos   fun1  fun2       (phase frequency)
+
+###############################################################
+FUNCTIONS
+fun1 = par3 + map1
+fun2 = gamma_mu * par4
+fun3 = par6 * par12
+fun4 = par9 * par15
+
+###############################################################
+GLOBAL
+fittype         0         (single histogram fit)
+fit             0.05    10     
+data            2500    66500   2500    66500   
+packing         10
+
+###############################################################
+RUN 2017/lem17_his_2552 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             5    0    0    0    0    0    0    0    0    0
+forward         1 5 
+norm            6
+backgr.fit      7
+#-----------------------------------------------
+RUN 2017/lem17_his_2552 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map             8    0    0    0    0    0    0    0    0    0
+forward         2 6 
+norm            9
+backgr.fit      10
+#-----------------------------------------------
+RUN 2017/lem17_his_2552 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            11    0    0    0    0    0    0    0    0    0
+forward         3 7 
+norm            fun3
+backgr.fit      13
+#-----------------------------------------------
+RUN 2017/lem17_his_2552 MUE4 PSI MUSR-ROOT   (name beamline institute data-file-format)
+map            14    0    0    0    0    0    0    0    0    0
+forward         4 8 
+norm            fun4
+backgr.fit      16
+
+###############################################################
+COMMANDS
+MAX_LIKELIHOOD
+#PRINT_LEVEL 2
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+PLOT 0   (single histo plot)
+lifetimecorrection
+runs     1   2   3   4   
+range    0   10   -0.25   0.25
+view_packing 25
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'Tesla', 'MHz', or 'Mc/s'
+fourier_power    13
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE, PHASE_OPT_REAL
+range            0    5000
+
+###############################################################
+STATISTIC --- 2017-08-05 05:59:06
+  maxLH = 20299.8, NDF = 20361, maxLH/NDF = 0.996994
diff --git a/src/musredit_qt6/mupp/examples/YBCO-40nm-FC-E3p8keV-B10mT-Tscan.dat b/src/musredit_qt6/mupp/examples/YBCO-40nm-FC-E3p8keV-B10mT-Tscan.dat
new file mode 100644
index 00000000..0b7ef868
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/YBCO-40nm-FC-E3p8keV-B10mT-Tscan.dat
@@ -0,0 +1,16 @@
+dataT        dataTErr        dataB        dataE        dataTr       dataRALRAR   dataRATRAB   dataSpinRot  Asy          AsyPosErr          AsyNegErr          Sigma        SigmaPosErr        SigmaNegErr        Ph           PhPosErr           PhNegErr           Field        FieldPosErr        FieldNegErr        RelPh_L      RelPh_LPosErr      RelPh_LNegErr      N0_L         N0_LPosErr         N0_LNegErr         N_bkg_L      N_bkg_LPosErr      N_bkg_LNegErr      RelPh_T      RelPh_TPosErr      RelPh_TNegErr      N0_T         N0_TPosErr         N0_TNegErr         N_bkg_T      N_bkg_TPosErr      N_bkg_TNegErr      RelPh_R      RelPh_RPosErr      RelPh_RNegErr      alpha_LR     alpha_LRPosErr     alpha_LRNegErr     N_bkg_R      N_bkg_RPosErr      N_bkg_RNegErr      RelPh_B      RelPh_BPosErr      RelPh_BNegErr      alpha_TB     alpha_TBPosErr     alpha_TBNegErr     N_bkg_B      N_bkg_BPosErr      N_bkg_BNegErr      maxLH        NDF          maxLHred     RUN          
+120.002      0.007           99.384       3.71888      15.0187      -0.003       -0.021       -10          0.1543        0.00077       0.00077       0.107         0.0042        0.0043        21.06         0.56          0.56          101.611       0.032         0.032         0            0             0             304.71        0.33          0.32          5.85          0.042         0.042         -88.67        0.69          0.69          322.01        0.33          0.33          6.275         0.043         0.043         182.67        0.68          0.68          1.048         0.0016        0.0016        6.506         0.044         0.043         91.87         0.71          0.71          0.9186        0.0014        0.0014        5.789         0.042         0.042         20371.9      20361        1.00054      2498         
+110.002      0.007           99.388       3.71908      15.0188      -0.004       -0.021       -10          0.15162       0.00077       0.00076       0.1038        0.0043        0.0044        21.96         0.56          0.56          101.648       0.033         0.032         0            0             0             306.71        0.32          0.33          5.651         0.042         0.042         -88.95        0.7           0.71          322.89        0.33          0.33          6.064         0.043         0.043         180.98        0.69          0.7           1.0395        0.0015        0.0015        6.41          0.043         0.043         89.25         0.71          0.72          0.9199        0.0014        0.0014        5.683         0.042         0.041         20571.2      20361        1.01032      2499         
+100.002      0.005           99.392       3.71967      15.0189      -0.004       -0.021       -10          0.15397       0.00077       0.00077       0.1179        0.004         0.0041        22.69         0.57          0.56          101.788       0.033         0.033         0            0             0             305.99        0.33          0.32          5.667         0.042         0.042         -89.73        0.69          0.7           322.59        0.33          0.33          6.099         0.043         0.043         180.18        0.69          0.7           1.0455        0.0015        0.0016        6.407         0.043         0.043         88.65         0.7           0.71          0.9225        0.0014        0.0014        5.755         0.042         0.042         20798.7      20361        1.0215       2500         
+90.001       0.006           99.392       3.71908      15.0188      -0.004       -0.021       -10          0.15292       0.00078       0.00076       0.1139        0.0041        0.0041        22.77         0.56          0.56          101.934       0.033         0.032         0            0             0             305.8         0.33          0.32          5.615         0.041         0.042         -89.44        0.7           0.7           323.19        0.33          0.33          5.877         0.043         0.043         179.8         0.69          0.69          1.0427        0.0015        0.0016        6.38          0.043         0.043         90.59         0.72          0.72          0.9193        0.0014        0.0014        5.684         0.042         0.041         20651.7      20361        1.01428      2501         
+80           0.004           99.396       3.71908      15.0187      -0.004       -0.021       -10          0.15503       0.0008        0.0008        0.1701        0.0037        0.0037        23.32         0.58          0.58          101.761       0.038         0.038         0            0             0             307.5         0.33          0.32          5.583         0.042         0.042         -89.57        0.72          0.72          322.69        0.33          0.33          6.069         0.043         0.043         180.36        0.7           0.71          1.0438        0.0015        0.0016        6.327         0.043         0.043         90.42         0.73          0.73          0.9273        0.0014        0.0014        5.494         0.041         0.041         20164.1      20361        0.99033      2502         
+70.001       0.006           99.399       3.71908      15.0187      -0.004       -0.021       -10          0.14723       0.00085       0.00085       0.2154        0.0041        0.0041        24.96         0.63          0.63          100.813       0.046         0.046         0            0             0             305.91        0.33          0.32          5.739         0.042         0.042         -88.52        0.78          0.78          322.43        0.33          0.33          6.083         0.043         0.043         181.37        0.78          0.77          1.0466        0.0015        0.0016        6.381         0.044         0.043         90.77         0.8           0.8           0.9244        0.0014        0.0014        5.651         0.041         0.041         20557.8      20361        1.00967      2503         
+60.001       0.005           99.4         3.71908      15.0186      -0.004       -0.021       -10          0.14658       0.00089       0.00089       0.2583        0.0044        0.0044        27.31         0.65          0.65          100.082       0.053         0.052         0            0             0             307.17        0.33          0.32          5.644         0.042         0.042         -90.36        0.81          0.81          322.7         0.33          0.33          6.046         0.043         0.043         179.44        0.8           0.8           1.0422        0.0015        0.0015        6.29          0.043         0.043         89.98         0.83          0.83          0.9204        0.0014        0.0014        5.629         0.042         0.041         20312.5      20361        0.997618     2504         
+50.001       0.005           99.4         3.71908      15.0187      -0.004       -0.021       -10          0.14694       0.00092       0.00091       0.3015        0.0047        0.0046        26.54         0.67          0.67          99.56         0.06          0.06          0            0             0             308.21        0.33          0.33          5.725         0.042         0.042         -88.06        0.84          0.84          322.68        0.33          0.33          5.998         0.043         0.043         182.28        0.83          0.83          1.034         0.0015        0.0015        6.414         0.043         0.043         93.05         0.85          0.85          0.9233        0.0014        0.0014        5.554         0.041         0.041         20520.8      20361        1.00785      2505         
+40           0.004           99.399       3.71908      15.0188      -0.003       -0.021       -10          0.14448       0.00093       0.00093       0.3229        0.0049        0.0049        27.69         0.71          0.71          99.218        0.065         0.065         0            0             0             308.64        0.33          0.32          5.629         0.042         0.042         -89.25        0.87          0.87          323.32        0.33          0.33          5.986         0.043         0.043         179.57        0.85          0.85          1.0321        0.0015        0.0015        6.356         0.043         0.043         92.12         0.88          0.88          0.9198        0.0014        0.0014        5.56          0.041         0.041         20387.1      20361        1.00128      2506         
+30           0.003           99.399       3.71967      15.0187      -0.004       -0.021       -10          0.14302       0.00096       0.00096       0.3559        0.0054        0.0053        26.24         0.73          0.73          99.133        0.071         0.071         0            0             0             308.94        0.33          0.33          5.538         0.042         0.042         -89.1         0.89          0.89          325           0.33          0.33          5.966         0.043         0.043         180.61        0.88          0.88          1.0277        0.0015        0.0015        6.368         0.043         0.043         91.54         0.92          0.92          0.9171        0.0014        0.0014        5.501         0.041         0.041         20754.5      20361        1.01933      2507         
+20           0.01            99.398       3.71967      15.0187      -0.003       -0.021       -10          0.14124       0.00098       0.00097       0.3703        0.0056        0.0055        27.39         0.74          0.74          98.751        0.075         0.075         0            0             0             309.63        0.33          0.32          5.579         0.042         0.042         -89.02        0.92          0.92          324.61        0.33          0.33          6.045         0.043         0.043         180.44        0.89          0.9           1.028         0.0015        0.0015        6.317         0.043         0.043         91.04         0.94          0.94          0.9176        0.0014        0.0014        5.626         0.042         0.041         20451.1      20361        1.00443      2508         
+10           0.01            99.4         3.71967      15.0187      -0.004       -0.021       -10          0.13867       0.00099       0.00098       0.3824        0.0058        0.0058        29.09         0.77          0.77          98.629        0.079         0.079         0            0             0             309.62        0.33          0.32          5.543         0.042         0.042         -91.92        0.94          0.95          323.32        0.33          0.33          6.028         0.043         0.043         180.01        0.93          0.93          1.0266        0.0015        0.0015        6.234         0.043         0.043         90.07         0.96          0.96          0.9183        0.0014        0.0014        5.573         0.041         0.041         20426.7      20361        1.00323      2509         
+5            0.009           99.399       3.71947      15.0187      -0.004       -0.021       -10          0.13438       0.00098       0.00098       0.3809        0.006         0.0059        27.97         0.79          0.79          98.57         0.082         0.081         0            0             0             309.88        0.33          0.33          5.664         0.042         0.042         -88.74        0.97          0.96          325.36        0.33          0.33          5.981         0.043         0.043         180.84        0.96          0.96          1.0271        0.0015        0.0015        6.324         0.043         0.043         92.48         0.98          0.99          0.9141        0.0014        0.0014        5.608         0.041         0.042         20906.7      20361        1.0268       2510         
+
+
diff --git a/src/musredit_qt6/mupp/examples/YBCO-40nm-FC-E3p8keV-B10mT-Tscan.db b/src/musredit_qt6/mupp/examples/YBCO-40nm-FC-E3p8keV-B10mT-Tscan.db
new file mode 100644
index 00000000..af9b594f
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/YBCO-40nm-FC-E3p8keV-B10mT-Tscan.db
@@ -0,0 +1,390 @@
+TITLE
+>>>Put your title here<<<
+
+Abstract
+>>>Put your abstract here<<<
+
+LABELS
+T (K)
+B (G)
+Implantation Energy (keV)
+Transport (kV)
+RAL-RAR (kV)
+RAT-RAB (kV)
+Spin Rotation Angle (degree)
+Asy
+Sigma
+Ph
+Field
+RelPh_L
+N0_L
+N_bkg_L
+RelPh_T
+N0_T
+N_bkg_T
+RelPh_R
+alpha_LR
+N_bkg_R
+RelPh_B
+alpha_TB
+N_bkg_B
+maxLH
+NDF
+maxLHred
+RUN
+
+Data dataT dataB dataE dataTr dataRALRAR dataRATRAB dataSpinRot Asy Sigma Ph Field RelPh_L N0_L N_bkg_L RelPh_T N0_T N_bkg_T RelPh_R alpha_LR N_bkg_R RelPh_B alpha_TB N_bkg_B maxLH NDF maxLHred RUN
+\-e
+dataT = 120.002, 0.007, 0.007,\
+dataB = 99.384, 0, 0,\
+dataE = 3.71888, 0, 0,\
+dataTr = 15.0187, 0, 0,\
+dataRALRAR = -0.003, 0, 0,\
+dataRATRAB = -0.021, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1543, 0.00077, -0.00077,\
+Sigma = 0.107, 0.0042, -0.0043,\
+Ph = 21.06, 0.56, -0.56,\
+Field = 101.611, 0.032, -0.032,\
+RelPh_L = 0, 0, 0,\
+N0_L = 304.71, 0.33, -0.32,\
+N_bkg_L = 5.85, 0.042, -0.042,\
+RelPh_T = -88.67, 0.69, -0.69,\
+N0_T = 322.01, 0.33, -0.33,\
+N_bkg_T = 6.275, 0.043, -0.043,\
+RelPh_R = 182.67, 0.68, -0.68,\
+alpha_LR = 1.048, 0.0016, -0.0016,\
+N_bkg_R = 6.506, 0.044, -0.043,\
+RelPh_B = 91.87, 0.71, -0.71,\
+alpha_TB = 0.9186, 0.0014, -0.0014,\
+N_bkg_B = 5.789, 0.042, -0.042,\
+maxLH = 20371.9, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00054, 0, 0,\
+2498,,, YBCO-40nm, T=120.00 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 110.002, 0.007, 0.007,\
+dataB = 99.388, 0, 0,\
+dataE = 3.71908, 0, 0,\
+dataTr = 15.0188, 0, 0,\
+dataRALRAR = -0.004, 0, 0,\
+dataRATRAB = -0.021, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.15162, 0.00077, -0.00076,\
+Sigma = 0.1038, 0.0043, -0.0044,\
+Ph = 21.96, 0.56, -0.56,\
+Field = 101.648, 0.033, -0.032,\
+RelPh_L = 0, 0, 0,\
+N0_L = 306.71, 0.32, -0.33,\
+N_bkg_L = 5.651, 0.042, -0.042,\
+RelPh_T = -88.95, 0.7, -0.71,\
+N0_T = 322.89, 0.33, -0.33,\
+N_bkg_T = 6.064, 0.043, -0.043,\
+RelPh_R = 180.98, 0.69, -0.7,\
+alpha_LR = 1.0395, 0.0015, -0.0015,\
+N_bkg_R = 6.41, 0.043, -0.043,\
+RelPh_B = 89.25, 0.71, -0.72,\
+alpha_TB = 0.9199, 0.0014, -0.0014,\
+N_bkg_B = 5.683, 0.042, -0.041,\
+maxLH = 20571.2, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.01032, 0, 0,\
+2499,,, YBCO-40nm, T=110.00 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 100.002, 0.005, 0.005,\
+dataB = 99.392, 0, 0,\
+dataE = 3.71967, 0, 0,\
+dataTr = 15.0189, 0, 0,\
+dataRALRAR = -0.004, 0, 0,\
+dataRATRAB = -0.021, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.15397, 0.00077, -0.00077,\
+Sigma = 0.1179, 0.004, -0.0041,\
+Ph = 22.69, 0.57, -0.56,\
+Field = 101.788, 0.033, -0.033,\
+RelPh_L = 0, 0, 0,\
+N0_L = 305.99, 0.33, -0.32,\
+N_bkg_L = 5.667, 0.042, -0.042,\
+RelPh_T = -89.73, 0.69, -0.7,\
+N0_T = 322.59, 0.33, -0.33,\
+N_bkg_T = 6.099, 0.043, -0.043,\
+RelPh_R = 180.18, 0.69, -0.7,\
+alpha_LR = 1.0455, 0.0015, -0.0016,\
+N_bkg_R = 6.407, 0.043, -0.043,\
+RelPh_B = 88.65, 0.7, -0.71,\
+alpha_TB = 0.9225, 0.0014, -0.0014,\
+N_bkg_B = 5.755, 0.042, -0.042,\
+maxLH = 20798.7, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.0215, 0, 0,\
+2500,,, YBCO-40nm, T=100.00 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 90.001, 0.006, 0.006,\
+dataB = 99.392, 0, 0,\
+dataE = 3.71908, 0, 0,\
+dataTr = 15.0188, 0, 0,\
+dataRALRAR = -0.004, 0, 0,\
+dataRATRAB = -0.021, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.15292, 0.00078, -0.00076,\
+Sigma = 0.1139, 0.0041, -0.0041,\
+Ph = 22.77, 0.56, -0.56,\
+Field = 101.934, 0.033, -0.032,\
+RelPh_L = 0, 0, 0,\
+N0_L = 305.8, 0.33, -0.32,\
+N_bkg_L = 5.615, 0.041, -0.042,\
+RelPh_T = -89.44, 0.7, -0.7,\
+N0_T = 323.19, 0.33, -0.33,\
+N_bkg_T = 5.877, 0.043, -0.043,\
+RelPh_R = 179.8, 0.69, -0.69,\
+alpha_LR = 1.0427, 0.0015, -0.0016,\
+N_bkg_R = 6.38, 0.043, -0.043,\
+RelPh_B = 90.59, 0.72, -0.72,\
+alpha_TB = 0.9193, 0.0014, -0.0014,\
+N_bkg_B = 5.684, 0.042, -0.041,\
+maxLH = 20651.7, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.01428, 0, 0,\
+2501,,, YBCO-40nm, T=90.00 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 80, 0.004, 0.004,\
+dataB = 99.396, 0, 0,\
+dataE = 3.71908, 0, 0,\
+dataTr = 15.0187, 0, 0,\
+dataRALRAR = -0.004, 0, 0,\
+dataRATRAB = -0.021, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.15503, 0.0008, -0.0008,\
+Sigma = 0.1701, 0.0037, -0.0037,\
+Ph = 23.32, 0.58, -0.58,\
+Field = 101.761, 0.038, -0.038,\
+RelPh_L = 0, 0, 0,\
+N0_L = 307.5, 0.33, -0.32,\
+N_bkg_L = 5.583, 0.042, -0.042,\
+RelPh_T = -89.57, 0.72, -0.72,\
+N0_T = 322.69, 0.33, -0.33,\
+N_bkg_T = 6.069, 0.043, -0.043,\
+RelPh_R = 180.36, 0.7, -0.71,\
+alpha_LR = 1.0438, 0.0015, -0.0016,\
+N_bkg_R = 6.327, 0.043, -0.043,\
+RelPh_B = 90.42, 0.73, -0.73,\
+alpha_TB = 0.9273, 0.0014, -0.0014,\
+N_bkg_B = 5.494, 0.041, -0.041,\
+maxLH = 20164.1, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 0.99033, 0, 0,\
+2502,,, YBCO-40nm, T=80.00 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 70.001, 0.006, 0.006,\
+dataB = 99.399, 0, 0,\
+dataE = 3.71908, 0, 0,\
+dataTr = 15.0187, 0, 0,\
+dataRALRAR = -0.004, 0, 0,\
+dataRATRAB = -0.021, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.14723, 0.00085, -0.00085,\
+Sigma = 0.2154, 0.0041, -0.0041,\
+Ph = 24.96, 0.63, -0.63,\
+Field = 100.813, 0.046, -0.046,\
+RelPh_L = 0, 0, 0,\
+N0_L = 305.91, 0.33, -0.32,\
+N_bkg_L = 5.739, 0.042, -0.042,\
+RelPh_T = -88.52, 0.78, -0.78,\
+N0_T = 322.43, 0.33, -0.33,\
+N_bkg_T = 6.083, 0.043, -0.043,\
+RelPh_R = 181.37, 0.78, -0.77,\
+alpha_LR = 1.0466, 0.0015, -0.0016,\
+N_bkg_R = 6.381, 0.044, -0.043,\
+RelPh_B = 90.77, 0.8, -0.8,\
+alpha_TB = 0.9244, 0.0014, -0.0014,\
+N_bkg_B = 5.651, 0.041, -0.041,\
+maxLH = 20557.8, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00967, 0, 0,\
+2503,,, YBCO-40nm, T=70.01 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 60.001, 0.005, 0.005,\
+dataB = 99.4, 0, 0,\
+dataE = 3.71908, 0, 0,\
+dataTr = 15.0186, 0, 0,\
+dataRALRAR = -0.004, 0, 0,\
+dataRATRAB = -0.021, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.14658, 0.00089, -0.00089,\
+Sigma = 0.2583, 0.0044, -0.0044,\
+Ph = 27.31, 0.65, -0.65,\
+Field = 100.082, 0.053, -0.052,\
+RelPh_L = 0, 0, 0,\
+N0_L = 307.17, 0.33, -0.32,\
+N_bkg_L = 5.644, 0.042, -0.042,\
+RelPh_T = -90.36, 0.81, -0.81,\
+N0_T = 322.7, 0.33, -0.33,\
+N_bkg_T = 6.046, 0.043, -0.043,\
+RelPh_R = 179.44, 0.8, -0.8,\
+alpha_LR = 1.0422, 0.0015, -0.0015,\
+N_bkg_R = 6.29, 0.043, -0.043,\
+RelPh_B = 89.98, 0.83, -0.83,\
+alpha_TB = 0.9204, 0.0014, -0.0014,\
+N_bkg_B = 5.629, 0.042, -0.041,\
+maxLH = 20312.5, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 0.997618, 0, 0,\
+2504,,, YBCO-40nm, T=60.00 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 50.001, 0.005, 0.005,\
+dataB = 99.4, 0, 0,\
+dataE = 3.71908, 0, 0,\
+dataTr = 15.0187, 0, 0,\
+dataRALRAR = -0.004, 0, 0,\
+dataRATRAB = -0.021, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.14694, 0.00092, -0.00091,\
+Sigma = 0.3015, 0.0047, -0.0046,\
+Ph = 26.54, 0.67, -0.67,\
+Field = 99.56, 0.06, -0.06,\
+RelPh_L = 0, 0, 0,\
+N0_L = 308.21, 0.33, -0.33,\
+N_bkg_L = 5.725, 0.042, -0.042,\
+RelPh_T = -88.06, 0.84, -0.84,\
+N0_T = 322.68, 0.33, -0.33,\
+N_bkg_T = 5.998, 0.043, -0.043,\
+RelPh_R = 182.28, 0.83, -0.83,\
+alpha_LR = 1.034, 0.0015, -0.0015,\
+N_bkg_R = 6.414, 0.043, -0.043,\
+RelPh_B = 93.05, 0.85, -0.85,\
+alpha_TB = 0.9233, 0.0014, -0.0014,\
+N_bkg_B = 5.554, 0.041, -0.041,\
+maxLH = 20520.8, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00785, 0, 0,\
+2505,,, YBCO-40nm, T=50.00 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 40, 0.004, 0.004,\
+dataB = 99.399, 0, 0,\
+dataE = 3.71908, 0, 0,\
+dataTr = 15.0188, 0, 0,\
+dataRALRAR = -0.003, 0, 0,\
+dataRATRAB = -0.021, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.14448, 0.00093, -0.00093,\
+Sigma = 0.3229, 0.0049, -0.0049,\
+Ph = 27.69, 0.71, -0.71,\
+Field = 99.218, 0.065, -0.065,\
+RelPh_L = 0, 0, 0,\
+N0_L = 308.64, 0.33, -0.32,\
+N_bkg_L = 5.629, 0.042, -0.042,\
+RelPh_T = -89.25, 0.87, -0.87,\
+N0_T = 323.32, 0.33, -0.33,\
+N_bkg_T = 5.986, 0.043, -0.043,\
+RelPh_R = 179.57, 0.85, -0.85,\
+alpha_LR = 1.0321, 0.0015, -0.0015,\
+N_bkg_R = 6.356, 0.043, -0.043,\
+RelPh_B = 92.12, 0.88, -0.88,\
+alpha_TB = 0.9198, 0.0014, -0.0014,\
+N_bkg_B = 5.56, 0.041, -0.041,\
+maxLH = 20387.1, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00128, 0, 0,\
+2506,,, YBCO-40nm, T=39.99 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 30, 0.003, 0.003,\
+dataB = 99.399, 0, 0,\
+dataE = 3.71967, 0, 0,\
+dataTr = 15.0187, 0, 0,\
+dataRALRAR = -0.004, 0, 0,\
+dataRATRAB = -0.021, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.14302, 0.00096, -0.00096,\
+Sigma = 0.3559, 0.0054, -0.0053,\
+Ph = 26.24, 0.73, -0.73,\
+Field = 99.133, 0.071, -0.071,\
+RelPh_L = 0, 0, 0,\
+N0_L = 308.94, 0.33, -0.33,\
+N_bkg_L = 5.538, 0.042, -0.042,\
+RelPh_T = -89.1, 0.89, -0.89,\
+N0_T = 325, 0.33, -0.33,\
+N_bkg_T = 5.966, 0.043, -0.043,\
+RelPh_R = 180.61, 0.88, -0.88,\
+alpha_LR = 1.0277, 0.0015, -0.0015,\
+N_bkg_R = 6.368, 0.043, -0.043,\
+RelPh_B = 91.54, 0.92, -0.92,\
+alpha_TB = 0.9171, 0.0014, -0.0014,\
+N_bkg_B = 5.501, 0.041, -0.041,\
+maxLH = 20754.5, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.01933, 0, 0,\
+2507,,, YBCO-40nm, T=30.00 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 20, 0.01, 0.01,\
+dataB = 99.398, 0, 0,\
+dataE = 3.71967, 0, 0,\
+dataTr = 15.0187, 0, 0,\
+dataRALRAR = -0.003, 0, 0,\
+dataRATRAB = -0.021, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.14124, 0.00098, -0.00097,\
+Sigma = 0.3703, 0.0056, -0.0055,\
+Ph = 27.39, 0.74, -0.74,\
+Field = 98.751, 0.075, -0.075,\
+RelPh_L = 0, 0, 0,\
+N0_L = 309.63, 0.33, -0.32,\
+N_bkg_L = 5.579, 0.042, -0.042,\
+RelPh_T = -89.02, 0.92, -0.92,\
+N0_T = 324.61, 0.33, -0.33,\
+N_bkg_T = 6.045, 0.043, -0.043,\
+RelPh_R = 180.44, 0.89, -0.9,\
+alpha_LR = 1.028, 0.0015, -0.0015,\
+N_bkg_R = 6.317, 0.043, -0.043,\
+RelPh_B = 91.04, 0.94, -0.94,\
+alpha_TB = 0.9176, 0.0014, -0.0014,\
+N_bkg_B = 5.626, 0.042, -0.041,\
+maxLH = 20451.1, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00443, 0, 0,\
+2508,,, YBCO-40nm, T=19.98 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 10, 0.01, 0.01,\
+dataB = 99.4, 0, 0,\
+dataE = 3.71967, 0, 0,\
+dataTr = 15.0187, 0, 0,\
+dataRALRAR = -0.004, 0, 0,\
+dataRATRAB = -0.021, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.13867, 0.00099, -0.00098,\
+Sigma = 0.3824, 0.0058, -0.0058,\
+Ph = 29.09, 0.77, -0.77,\
+Field = 98.629, 0.079, -0.079,\
+RelPh_L = 0, 0, 0,\
+N0_L = 309.62, 0.33, -0.32,\
+N_bkg_L = 5.543, 0.042, -0.042,\
+RelPh_T = -91.92, 0.94, -0.95,\
+N0_T = 323.32, 0.33, -0.33,\
+N_bkg_T = 6.028, 0.043, -0.043,\
+RelPh_R = 180.01, 0.93, -0.93,\
+alpha_LR = 1.0266, 0.0015, -0.0015,\
+N_bkg_R = 6.234, 0.043, -0.043,\
+RelPh_B = 90.07, 0.96, -0.96,\
+alpha_TB = 0.9183, 0.0014, -0.0014,\
+N_bkg_B = 5.573, 0.041, -0.041,\
+maxLH = 20426.7, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00323, 0, 0,\
+2509,,, YBCO-40nm, T=10.01 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 5, 0.009, 0.009,\
+dataB = 99.399, 0, 0,\
+dataE = 3.71947, 0, 0,\
+dataTr = 15.0187, 0, 0,\
+dataRALRAR = -0.004, 0, 0,\
+dataRATRAB = -0.021, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.13438, 0.00098, -0.00098,\
+Sigma = 0.3809, 0.006, -0.0059,\
+Ph = 27.97, 0.79, -0.79,\
+Field = 98.57, 0.082, -0.081,\
+RelPh_L = 0, 0, 0,\
+N0_L = 309.88, 0.33, -0.33,\
+N_bkg_L = 5.664, 0.042, -0.042,\
+RelPh_T = -88.74, 0.97, -0.96,\
+N0_T = 325.36, 0.33, -0.33,\
+N_bkg_T = 5.981, 0.043, -0.043,\
+RelPh_R = 180.84, 0.96, -0.96,\
+alpha_LR = 1.0271, 0.0015, -0.0015,\
+N_bkg_R = 6.324, 0.043, -0.043,\
+RelPh_B = 92.48, 0.98, -0.99,\
+alpha_TB = 0.9141, 0.0014, -0.0014,\
+N_bkg_B = 5.608, 0.041, -0.042,\
+maxLH = 20906.7, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.0268, 0, 0,\
+2510,,, YBCO-40nm, T=5.01 K, E=3.72 keV, B=~100(G)/17.30(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+
+
diff --git a/src/musredit_qt6/mupp/examples/YBCO-40nm-FC-E3p8keV-B150mT-Tscan.dat b/src/musredit_qt6/mupp/examples/YBCO-40nm-FC-E3p8keV-B150mT-Tscan.dat
new file mode 100644
index 00000000..7028e8bb
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/YBCO-40nm-FC-E3p8keV-B150mT-Tscan.dat
@@ -0,0 +1,16 @@
+dataT        dataTErr        dataB        dataE        dataTr       dataRALRAR   dataRATRAB   dataSpinRot  Asy          AsyPosErr          AsyNegErr          Sigma        SigmaPosErr        SigmaNegErr        Ph           PhPosErr           PhNegErr           Field        FieldPosErr        FieldNegErr        RelPh_L      RelPh_LPosErr      RelPh_LNegErr      N0_L         N0_LPosErr         N0_LNegErr         N_bkg_L      N_bkg_LPosErr      N_bkg_LNegErr      RelPh_T      RelPh_TPosErr      RelPh_TNegErr      N0_T         N0_TPosErr         N0_TNegErr         N_bkg_T      N_bkg_TPosErr      N_bkg_TNegErr      RelPh_R      RelPh_RPosErr      RelPh_RNegErr      alpha_LR     alpha_LRPosErr     alpha_LRNegErr     N_bkg_R      N_bkg_RPosErr      N_bkg_RNegErr      RelPh_B      RelPh_BPosErr      RelPh_BNegErr      alpha_TB     alpha_TBPosErr     alpha_TBNegErr     N_bkg_B      N_bkg_BPosErr      N_bkg_BNegErr      maxLH        NDF          maxLHred     RUN          
+120.001      0.008           1499.8       3.71888      15.019       0.002        -0.006       -10          0.15779       0.00081       0.0008        0.0681        0.0057        0.0061        -150.01       0.6           0.59          1513.489      0.032         0.031         0            0             0             262.5         0.3           0.3           4.93          0.039         0.039         -90.95        0.72          0.72          268.28        0.3           0.3           5.042         0.039         0.039         180           0.73          0.73          0.9991        0.0016        0.0016        5.228         0.039         0.039         90.52         0.73          0.73          0.9397        0.0015        0.0015        4.688         0.038         0.038         20436.1      20361        1.00369      2485         
+110.002      0.006           1499.8       3.71967      15.019       0.002        -0.006       -10          0.15809       0.00081       0.0008        0.0649        0.0059        0.0064        -149.17       0.58          0.59          1513.565      0.031         0.031         0            0             0             262.96        0.3           0.3           4.78          0.038         0.038         -90.23        0.72          0.71          268.63        0.3           0.3           4.938         0.039         0.039         178.56        0.72          0.71          0.999         0.0016        0.0016        5.152         0.039         0.039         88.76         0.74          0.73          0.9377        0.0015        0.0015        4.705         0.038         0.038         20767        20361        1.01994      2486         
+100.001      0.008           1499.8       3.71987      15           0.003        -0.006       -10          0.15934       0.00082       0.00082       0.0922        0.0047        0.0048        -150.01       0.59          0.59          1513.756      0.033         0.033         0            0             0             263.43        0.3           0.3           4.848         0.039         0.039         -88.93        0.72          0.72          268.4         0.3           0.3           4.936         0.039         0.039         180.65        0.73          0.73          0.9991        0.0016        0.0016        5.253         0.039         0.039         89.79         0.73          0.73          0.9424        0.0015        0.0015        4.794         0.038         0.038         20276.6      20361        0.995855     2487         
+90.001       0.006           1499.79      3.71947      15.0191      0.002        -0.006       -10          0.15729       0.00081       0.00081       0.0682        0.0058        0.0062        -151.06       0.58          0.59          1513.939      0.032         0.031         0            0             0             263.19        0.3           0.3           4.791         0.039         0.038         -88.06        0.73          0.71          268.08        0.3           0.3           5.07          0.039         0.039         180.74        0.73          0.72          0.996         0.0016        0.0016        5.257         0.04          0.039         91.29         0.73          0.72          0.9416        0.0015        0.0015        4.703         0.038         0.038         20817.9      20361        1.02244      2488         
+80.001       0.005           1499.79      3.71947      15.019       0.002        -0.006       -10          0.15485       0.00095       0.00095       0.2684        0.0043        0.0043        -148.61       0.7           0.68          1513.209      0.057         0.057         0            0             0             261.84        0.3           0.3           4.866         0.039         0.039         -87.62        0.82          0.85          267.69        0.3           0.3           5.009         0.039         0.039         182.56        0.83          0.86          1.0033        0.0016        0.0016        5.215         0.039         0.039         92.29         0.84          0.87          0.9398        0.0015        0.0015        4.713         0.038         0.038         20788.2      20361        1.02098      2489         
+70           0.008           1499.79      3.71967      15.019       0.002        -0.006       -10          0.1479        0.0012        0.0012        0.5707        0.0086        0.0084        -143.97       0.9           0.91          1510.98       0.13          0.12          0            0             0             262.34        0.3           0.3           4.771         0.039         0.038         -90.6         1.1           1.1           268.29        0.3           0.3           4.998         0.039         0.039         180.3         1.1           1.1           1.002         0.0016        0.0016        5.24          0.039         0.039         90.6          1.1           1.1           0.9407        0.0015        0.0015        4.649         0.038         0.038         20459.9      20361        1.00486      2490         
+60.001       0.004           1499.8       3.71947      15.0189      0.003        -0.006       -10          0.147         0.0014        0.0014        0.747         0.011         0.011         -140.6        1             1             1509.2        0.17          0.17          0            0             0             261.28        0.3           0.3           4.777         0.039         0.038         -92.4         1.2           1.2           268.75        0.3           0.3           4.861         0.039         0.039         177.8         1.2           1.2           1.0073        0.0016        0.0016        5.148         0.039         0.039         86.7          1.2           1.2           0.9345        0.0015        0.0015        4.798         0.038         0.038         20785.1      20361        1.02083      2491         
+50           0.004           1499.79      3.71947      15.019       0.002        -0.006       -10          0.1422        0.0014        0.0014        0.861         0.013         0.013         -141.6        1.1           1.1           1507.25       0.22          0.21          0            0             0             263.18        0.3           0.3           4.744         0.038         0.039         -88.5         1.3           1.3           269.06        0.3           0.3           5.062         0.039         0.04          181.5         1.3           1.3           1.0004        0.0016        0.0016        5.298         0.039         0.04          91            1.3           1.3           0.9408        0.0015        0.0015        4.734         0.038         0.038         20799.5      20361        1.02154      2492         
+40           0.005           1499.79      3.71967      15.019       0.003        -0.006       -10          0.1381        0.0015        0.0015        0.97          0.016         0.016         -140.2        1.2           1.2           1506.77       0.26          0.26          0            0             0             262.27        0.3           0.3           4.712         0.038         0.038         -90.9         1.4           1.4           269.85        0.3           0.3           4.981         0.039         0.039         181.2         1.4           1.4           1.0097        0.0016        0.0016        5.23          0.039         0.04          89.4          1.4           1.4           0.9379        0.0015        0.0015        4.738         0.038         0.038         20044.5      20361        0.984456     2493         
+30           0.004           1499.79      3.71947      15.019       0.003        -0.006       -10          0.1442        0.0016        0.0016        1.094         0.018         0.018         -137.3        1.2           1.2           1505.51       0.29          0.29          0            0             0             259.62        0.3           0.3           4.85          0.038         0.039         -93.2         1.4           1.4           268.18        0.3           0.3           5.057         0.039         0.039         178           1.4           1.4           1.0129        0.0016        0.0016        5.224         0.039         0.039         89.1          1.4           1.4           0.94          0.0015        0.0015        4.568         0.038         0.038         20448.4      20361        1.00429      2494         
+20           0.01            1499.8       3.71967      15.0191      0.002        -0.006       -10          0.1393        0.0017        0.0016        1.138         0.02          0.02          -141.9        1.3           1.3           1505.85       0.32          0.32          0            0             0             261.04        0.3           0.3           4.715         0.038         0.038         -87           1.5           1.5           269.62        0.3           0.3           5.026         0.039         0.039         180.2         1.5           1.5           1.0091        0.0016        0.0016        5.218         0.039         0.039         91.8          1.5           1.5           0.9369        0.0015        0.0015        4.643         0.038         0.038         20908.9      20361        1.02691      2495         
+10.001       0.007           1499.8       3.71967      15.0189      0.002        -0.006       -10          0.1431        0.0017        0.0017        1.227         0.021         0.021         -140.1        1.3           1.3           1504.58       0.34          0.34          0            0             0             261.09        0.3           0.3           4.683         0.038         0.038         -90.1         1.5           1.5           268.81        0.3           0.3           5.029         0.039         0.039         178.6         1.5           1.5           1.0115        0.0016        0.0016        5.133         0.039         0.039         89.2          1.5           1.5           0.9387        0.0015        0.0015        4.799         0.038         0.038         20464        20361        1.00506      2496         
+4.998        0.007           1499.8       3.71908      15.0189      0.003        -0.006       -10          0.1344        0.0015        0.0015        1.195         0.019         0.019         -135.1        1.2           1.2           1503.89       0.32          0.32          0            0             0             313.46        0.33          0.32          5.724         0.042         0.042         -90.8         1.4           1.4           322.27        0.33          0.33          6.028         0.043         0.043         175.3         1.5           1.5           1.0103        0.0015        0.0015        6.222         0.043         0.043         86.5          1.5           1.5           0.9401        0.0014        0.0014        5.563         0.041         0.042         20911.8      20361        1.02705      2497         
+
+
diff --git a/src/musredit_qt6/mupp/examples/YBCO-40nm-FC-E3p8keV-B150mT-Tscan.db b/src/musredit_qt6/mupp/examples/YBCO-40nm-FC-E3p8keV-B150mT-Tscan.db
new file mode 100644
index 00000000..fa4daa07
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/YBCO-40nm-FC-E3p8keV-B150mT-Tscan.db
@@ -0,0 +1,390 @@
+TITLE
+>>>Put your title here<<<
+
+Abstract
+>>>Put your abstract here<<<
+
+LABELS
+T (K)
+B (G)
+Implantation Energy (keV)
+Transport (kV)
+RAL-RAR (kV)
+RAT-RAB (kV)
+Spin Rotation Angle (degree)
+Asy
+Sigma
+Ph
+Field
+RelPh_L
+N0_L
+N_bkg_L
+RelPh_T
+N0_T
+N_bkg_T
+RelPh_R
+alpha_LR
+N_bkg_R
+RelPh_B
+alpha_TB
+N_bkg_B
+maxLH
+NDF
+maxLHred
+RUN
+
+Data dataT dataB dataE dataTr dataRALRAR dataRATRAB dataSpinRot Asy Sigma Ph Field RelPh_L N0_L N_bkg_L RelPh_T N0_T N_bkg_T RelPh_R alpha_LR N_bkg_R RelPh_B alpha_TB N_bkg_B maxLH NDF maxLHred RUN
+\-e
+dataT = 120.001, 0.008, 0.008,\
+dataB = 1499.8, 0, 0,\
+dataE = 3.71888, 0, 0,\
+dataTr = 15.019, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.15779, 0.00081, -0.0008,\
+Sigma = 0.0681, 0.0057, -0.0061,\
+Ph = -150.01, 0.6, -0.59,\
+Field = 1513.489, 0.032, -0.031,\
+RelPh_L = 0, 0, 0,\
+N0_L = 262.5, 0.3, -0.3,\
+N_bkg_L = 4.93, 0.039, -0.039,\
+RelPh_T = -90.95, 0.72, -0.72,\
+N0_T = 268.28, 0.3, -0.3,\
+N_bkg_T = 5.042, 0.039, -0.039,\
+RelPh_R = 180, 0.73, -0.73,\
+alpha_LR = 0.9991, 0.0016, -0.0016,\
+N_bkg_R = 5.228, 0.039, -0.039,\
+RelPh_B = 90.52, 0.73, -0.73,\
+alpha_TB = 0.9397, 0.0015, -0.0015,\
+N_bkg_B = 4.688, 0.038, -0.038,\
+maxLH = 20436.1, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00369, 0, 0,\
+2485,,, YBCO-40nm, T=120.01 K, E=3.72 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 110.002, 0.006, 0.006,\
+dataB = 1499.8, 0, 0,\
+dataE = 3.71967, 0, 0,\
+dataTr = 15.019, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.15809, 0.00081, -0.0008,\
+Sigma = 0.0649, 0.0059, -0.0064,\
+Ph = -149.17, 0.58, -0.59,\
+Field = 1513.565, 0.031, -0.031,\
+RelPh_L = 0, 0, 0,\
+N0_L = 262.96, 0.3, -0.3,\
+N_bkg_L = 4.78, 0.038, -0.038,\
+RelPh_T = -90.23, 0.72, -0.71,\
+N0_T = 268.63, 0.3, -0.3,\
+N_bkg_T = 4.938, 0.039, -0.039,\
+RelPh_R = 178.56, 0.72, -0.71,\
+alpha_LR = 0.999, 0.0016, -0.0016,\
+N_bkg_R = 5.152, 0.039, -0.039,\
+RelPh_B = 88.76, 0.74, -0.73,\
+alpha_TB = 0.9377, 0.0015, -0.0015,\
+N_bkg_B = 4.705, 0.038, -0.038,\
+maxLH = 20767, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.01994, 0, 0,\
+2486,,, YBCO-40nm, T=110.01 K, E=3.72 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 100.001, 0.008, 0.008,\
+dataB = 1499.8, 0, 0,\
+dataE = 3.71987, 0, 0,\
+dataTr = 15, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.15934, 0.00082, -0.00082,\
+Sigma = 0.0922, 0.0047, -0.0048,\
+Ph = -150.01, 0.59, -0.59,\
+Field = 1513.756, 0.033, -0.033,\
+RelPh_L = 0, 0, 0,\
+N0_L = 263.43, 0.3, -0.3,\
+N_bkg_L = 4.848, 0.039, -0.039,\
+RelPh_T = -88.93, 0.72, -0.72,\
+N0_T = 268.4, 0.3, -0.3,\
+N_bkg_T = 4.936, 0.039, -0.039,\
+RelPh_R = 180.65, 0.73, -0.73,\
+alpha_LR = 0.9991, 0.0016, -0.0016,\
+N_bkg_R = 5.253, 0.039, -0.039,\
+RelPh_B = 89.79, 0.73, -0.73,\
+alpha_TB = 0.9424, 0.0015, -0.0015,\
+N_bkg_B = 4.794, 0.038, -0.038,\
+maxLH = 20276.6, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 0.995855, 0, 0,\
+2487,,, YBCO-40nm, T=100.00 K, E=3.72 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 90.001, 0.006, 0.006,\
+dataB = 1499.79, 0, 0,\
+dataE = 3.71947, 0, 0,\
+dataTr = 15.0191, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.15729, 0.00081, -0.00081,\
+Sigma = 0.0682, 0.0058, -0.0062,\
+Ph = -151.06, 0.58, -0.59,\
+Field = 1513.939, 0.032, -0.031,\
+RelPh_L = 0, 0, 0,\
+N0_L = 263.19, 0.3, -0.3,\
+N_bkg_L = 4.791, 0.039, -0.038,\
+RelPh_T = -88.06, 0.73, -0.71,\
+N0_T = 268.08, 0.3, -0.3,\
+N_bkg_T = 5.07, 0.039, -0.039,\
+RelPh_R = 180.74, 0.73, -0.72,\
+alpha_LR = 0.996, 0.0016, -0.0016,\
+N_bkg_R = 5.257, 0.04, -0.039,\
+RelPh_B = 91.29, 0.73, -0.72,\
+alpha_TB = 0.9416, 0.0015, -0.0015,\
+N_bkg_B = 4.703, 0.038, -0.038,\
+maxLH = 20817.9, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.02244, 0, 0,\
+2488,,, YBCO-40nm, T=90.00 K, E=3.72 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 80.001, 0.005, 0.005,\
+dataB = 1499.79, 0, 0,\
+dataE = 3.71947, 0, 0,\
+dataTr = 15.019, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.15485, 0.00095, -0.00095,\
+Sigma = 0.2684, 0.0043, -0.0043,\
+Ph = -148.61, 0.7, -0.68,\
+Field = 1513.209, 0.057, -0.057,\
+RelPh_L = 0, 0, 0,\
+N0_L = 261.84, 0.3, -0.3,\
+N_bkg_L = 4.866, 0.039, -0.039,\
+RelPh_T = -87.62, 0.82, -0.85,\
+N0_T = 267.69, 0.3, -0.3,\
+N_bkg_T = 5.009, 0.039, -0.039,\
+RelPh_R = 182.56, 0.83, -0.86,\
+alpha_LR = 1.0033, 0.0016, -0.0016,\
+N_bkg_R = 5.215, 0.039, -0.039,\
+RelPh_B = 92.29, 0.84, -0.87,\
+alpha_TB = 0.9398, 0.0015, -0.0015,\
+N_bkg_B = 4.713, 0.038, -0.038,\
+maxLH = 20788.2, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.02098, 0, 0,\
+2489,,, YBCO-40nm, T=80.00 K, E=3.72 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 70, 0.008, 0.008,\
+dataB = 1499.79, 0, 0,\
+dataE = 3.71967, 0, 0,\
+dataTr = 15.019, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1479, 0.0012, -0.0012,\
+Sigma = 0.5707, 0.0086, -0.0084,\
+Ph = -143.97, 0.9, -0.91,\
+Field = 1510.98, 0.13, -0.12,\
+RelPh_L = 0, 0, 0,\
+N0_L = 262.34, 0.3, -0.3,\
+N_bkg_L = 4.771, 0.039, -0.038,\
+RelPh_T = -90.6, 1.1, -1.1,\
+N0_T = 268.29, 0.3, -0.3,\
+N_bkg_T = 4.998, 0.039, -0.039,\
+RelPh_R = 180.3, 1.1, -1.1,\
+alpha_LR = 1.002, 0.0016, -0.0016,\
+N_bkg_R = 5.24, 0.039, -0.039,\
+RelPh_B = 90.6, 1.1, -1.1,\
+alpha_TB = 0.9407, 0.0015, -0.0015,\
+N_bkg_B = 4.649, 0.038, -0.038,\
+maxLH = 20459.9, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00486, 0, 0,\
+2490,,, YBCO-40nm, T=70.00 K, E=3.72 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 60.001, 0.004, 0.004,\
+dataB = 1499.8, 0, 0,\
+dataE = 3.71947, 0, 0,\
+dataTr = 15.0189, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.147, 0.0014, -0.0014,\
+Sigma = 0.747, 0.011, -0.011,\
+Ph = -140.6, 1, -1,\
+Field = 1509.2, 0.17, -0.17,\
+RelPh_L = 0, 0, 0,\
+N0_L = 261.28, 0.3, -0.3,\
+N_bkg_L = 4.777, 0.039, -0.038,\
+RelPh_T = -92.4, 1.2, -1.2,\
+N0_T = 268.75, 0.3, -0.3,\
+N_bkg_T = 4.861, 0.039, -0.039,\
+RelPh_R = 177.8, 1.2, -1.2,\
+alpha_LR = 1.0073, 0.0016, -0.0016,\
+N_bkg_R = 5.148, 0.039, -0.039,\
+RelPh_B = 86.7, 1.2, -1.2,\
+alpha_TB = 0.9345, 0.0015, -0.0015,\
+N_bkg_B = 4.798, 0.038, -0.038,\
+maxLH = 20785.1, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.02083, 0, 0,\
+2491,,, YBCO-40nm, T=60.00 K, E=3.72 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 50, 0.004, 0.004,\
+dataB = 1499.79, 0, 0,\
+dataE = 3.71947, 0, 0,\
+dataTr = 15.019, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1422, 0.0014, -0.0014,\
+Sigma = 0.861, 0.013, -0.013,\
+Ph = -141.6, 1.1, -1.1,\
+Field = 1507.25, 0.22, -0.21,\
+RelPh_L = 0, 0, 0,\
+N0_L = 263.18, 0.3, -0.3,\
+N_bkg_L = 4.744, 0.038, -0.039,\
+RelPh_T = -88.5, 1.3, -1.3,\
+N0_T = 269.06, 0.3, -0.3,\
+N_bkg_T = 5.062, 0.039, -0.04,\
+RelPh_R = 181.5, 1.3, -1.3,\
+alpha_LR = 1.0004, 0.0016, -0.0016,\
+N_bkg_R = 5.298, 0.039, -0.04,\
+RelPh_B = 91, 1.3, -1.3,\
+alpha_TB = 0.9408, 0.0015, -0.0015,\
+N_bkg_B = 4.734, 0.038, -0.038,\
+maxLH = 20799.5, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.02154, 0, 0,\
+2492,,, YBCO-40nm, T=49.99 K, E=3.72 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 40, 0.005, 0.005,\
+dataB = 1499.79, 0, 0,\
+dataE = 3.71967, 0, 0,\
+dataTr = 15.019, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1381, 0.0015, -0.0015,\
+Sigma = 0.97, 0.016, -0.016,\
+Ph = -140.2, 1.2, -1.2,\
+Field = 1506.77, 0.26, -0.26,\
+RelPh_L = 0, 0, 0,\
+N0_L = 262.27, 0.3, -0.3,\
+N_bkg_L = 4.712, 0.038, -0.038,\
+RelPh_T = -90.9, 1.4, -1.4,\
+N0_T = 269.85, 0.3, -0.3,\
+N_bkg_T = 4.981, 0.039, -0.039,\
+RelPh_R = 181.2, 1.4, -1.4,\
+alpha_LR = 1.0097, 0.0016, -0.0016,\
+N_bkg_R = 5.23, 0.039, -0.04,\
+RelPh_B = 89.4, 1.4, -1.4,\
+alpha_TB = 0.9379, 0.0015, -0.0015,\
+N_bkg_B = 4.738, 0.038, -0.038,\
+maxLH = 20044.5, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 0.984456, 0, 0,\
+2493,,, YBCO-40nm, T=40.00 K, E=3.72 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 30, 0.004, 0.004,\
+dataB = 1499.79, 0, 0,\
+dataE = 3.71947, 0, 0,\
+dataTr = 15.019, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1442, 0.0016, -0.0016,\
+Sigma = 1.094, 0.018, -0.018,\
+Ph = -137.3, 1.2, -1.2,\
+Field = 1505.51, 0.29, -0.29,\
+RelPh_L = 0, 0, 0,\
+N0_L = 259.62, 0.3, -0.3,\
+N_bkg_L = 4.85, 0.038, -0.039,\
+RelPh_T = -93.2, 1.4, -1.4,\
+N0_T = 268.18, 0.3, -0.3,\
+N_bkg_T = 5.057, 0.039, -0.039,\
+RelPh_R = 178, 1.4, -1.4,\
+alpha_LR = 1.0129, 0.0016, -0.0016,\
+N_bkg_R = 5.224, 0.039, -0.039,\
+RelPh_B = 89.1, 1.4, -1.4,\
+alpha_TB = 0.94, 0.0015, -0.0015,\
+N_bkg_B = 4.568, 0.038, -0.038,\
+maxLH = 20448.4, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00429, 0, 0,\
+2494,,, YBCO-40nm, T=30.00 K, E=3.72 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 20, 0.01, 0.01,\
+dataB = 1499.8, 0, 0,\
+dataE = 3.71967, 0, 0,\
+dataTr = 15.0191, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1393, 0.0017, -0.0016,\
+Sigma = 1.138, 0.02, -0.02,\
+Ph = -141.9, 1.3, -1.3,\
+Field = 1505.85, 0.32, -0.32,\
+RelPh_L = 0, 0, 0,\
+N0_L = 261.04, 0.3, -0.3,\
+N_bkg_L = 4.715, 0.038, -0.038,\
+RelPh_T = -87, 1.5, -1.5,\
+N0_T = 269.62, 0.3, -0.3,\
+N_bkg_T = 5.026, 0.039, -0.039,\
+RelPh_R = 180.2, 1.5, -1.5,\
+alpha_LR = 1.0091, 0.0016, -0.0016,\
+N_bkg_R = 5.218, 0.039, -0.039,\
+RelPh_B = 91.8, 1.5, -1.5,\
+alpha_TB = 0.9369, 0.0015, -0.0015,\
+N_bkg_B = 4.643, 0.038, -0.038,\
+maxLH = 20908.9, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.02691, 0, 0,\
+2495,,, YBCO-40nm, T=20.00 K, E=3.72 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 10.001, 0.007, 0.007,\
+dataB = 1499.8, 0, 0,\
+dataE = 3.71967, 0, 0,\
+dataTr = 15.0189, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1431, 0.0017, -0.0017,\
+Sigma = 1.227, 0.021, -0.021,\
+Ph = -140.1, 1.3, -1.3,\
+Field = 1504.58, 0.34, -0.34,\
+RelPh_L = 0, 0, 0,\
+N0_L = 261.09, 0.3, -0.3,\
+N_bkg_L = 4.683, 0.038, -0.038,\
+RelPh_T = -90.1, 1.5, -1.5,\
+N0_T = 268.81, 0.3, -0.3,\
+N_bkg_T = 5.029, 0.039, -0.039,\
+RelPh_R = 178.6, 1.5, -1.5,\
+alpha_LR = 1.0115, 0.0016, -0.0016,\
+N_bkg_R = 5.133, 0.039, -0.039,\
+RelPh_B = 89.2, 1.5, -1.5,\
+alpha_TB = 0.9387, 0.0015, -0.0015,\
+N_bkg_B = 4.799, 0.038, -0.038,\
+maxLH = 20464, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00506, 0, 0,\
+2496,,, YBCO-40nm, T=10.01 K, E=3.72 keV, B=~1500(G)/259.53(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 4.998, 0.007, 0.007,\
+dataB = 1499.8, 0, 0,\
+dataE = 3.71908, 0, 0,\
+dataTr = 15.0189, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1344, 0.0015, -0.0015,\
+Sigma = 1.195, 0.019, -0.019,\
+Ph = -135.1, 1.2, -1.2,\
+Field = 1503.89, 0.32, -0.32,\
+RelPh_L = 0, 0, 0,\
+N0_L = 313.46, 0.33, -0.32,\
+N_bkg_L = 5.724, 0.042, -0.042,\
+RelPh_T = -90.8, 1.4, -1.4,\
+N0_T = 322.27, 0.33, -0.33,\
+N_bkg_T = 6.028, 0.043, -0.043,\
+RelPh_R = 175.3, 1.5, -1.5,\
+alpha_LR = 1.0103, 0.0015, -0.0015,\
+N_bkg_R = 6.222, 0.043, -0.043,\
+RelPh_B = 86.5, 1.5, -1.5,\
+alpha_TB = 0.9401, 0.0014, -0.0014,\
+N_bkg_B = 5.563, 0.041, -0.042,\
+maxLH = 20911.8, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.02705, 0, 0,\
+2497,,, YBCO-40nm, T=4.99 K, E=3.72 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+
+
diff --git a/src/musredit_qt6/mupp/examples/YBCO-40nm-T120K-FC150mT-Escan.db b/src/musredit_qt6/mupp/examples/YBCO-40nm-T120K-FC150mT-Escan.db
new file mode 100644
index 00000000..34cf0ca5
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/YBCO-40nm-T120K-FC150mT-Escan.db
@@ -0,0 +1,282 @@
+TITLE
+>>>Put your title here<<<
+
+Abstract
+>>>Put your abstract here<<<
+
+LABELS
+T (K)
+B (G)
+Implantation Energy (keV)
+Transport (kV)
+RAL-RAR (kV)
+RAT-RAB (kV)
+Spin Rotation Angle (degree)
+Asy
+Sigma
+Ph
+Field
+RelPh_L
+N0_L
+N_bkg_L
+RelPh_T
+N0_T
+N_bkg_T
+RelPh_R
+alpha_LR
+N_bkg_R
+RelPh_B
+alpha_TB
+N_bkg_B
+maxLH
+NDF
+maxLHred
+RUN
+
+Data dataT dataB dataE dataTr dataRALRAR dataRATRAB dataSpinRot Asy Sigma Ph Field RelPh_L N0_L N_bkg_L RelPh_T N0_T N_bkg_T RelPh_R alpha_LR N_bkg_R RelPh_B alpha_TB N_bkg_B maxLH NDF maxLHred RUN
+\-e
+dataT = 120, 0.004, 0.004,\
+dataB = 1499.81, 0, 0,\
+dataE = 24.2569, 0, 0,\
+dataTr = 15.0188, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.16934, 0.00092, -0.00091,\
+Sigma = 0.0504, 0.0076, -0.0087,\
+Ph = -151.89, 0.62, -0.62,\
+Field = 1513.14, 0.032, -0.032,\
+RelPh_L = 0, 0, 0,\
+N0_L = 199.87, 0.26, -0.26,\
+N_bkg_L = 3.485, 0.033, -0.033,\
+RelPh_T = -91.07, 0.76, -0.75,\
+N0_T = 203.23, 0.26, -0.26,\
+N_bkg_T = 3.652, 0.034, -0.034,\
+RelPh_R = 180.84, 0.77, -0.77,\
+alpha_LR = 1.0068, 0.0018, -0.0019,\
+N_bkg_R = 3.97, 0.034, -0.034,\
+RelPh_B = 88.76, 0.78, -0.77,\
+alpha_TB = 0.9521, 0.0018, -0.0017,\
+N_bkg_B = 3.508, 0.033, -0.033,\
+maxLH = 20465.5, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00513, 0, 0,\
+2519,,, YBCO-40nm, T=119.99 K, E=24.26 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/-9.99 kV, SR=-10.00
+dataT = 120.001, 0.009, 0.009,\
+dataB = 1499.81, 0, 0,\
+dataE = 21.7587, 0, 0,\
+dataTr = 15.0188, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.16434, 0.00092, -0.00091,\
+Sigma = 0.026, 0.013, -0.026,\
+Ph = -153.67, 0.63, -0.64,\
+Field = 1513.255, 0.033, -0.033,\
+RelPh_L = 0, 0, 0,\
+N0_L = 200.43, 0.26, -0.26,\
+N_bkg_L = 3.509, 0.033, -0.033,\
+RelPh_T = -89.1, 0.78, -0.77,\
+N0_T = 203.53, 0.26, -0.27,\
+N_bkg_T = 3.735, 0.034, -0.034,\
+RelPh_R = 180.88, 0.79, -0.78,\
+alpha_LR = 1.0056, 0.0018, -0.0019,\
+N_bkg_R = 3.886, 0.034, -0.034,\
+RelPh_B = 90.92, 0.79, -0.78,\
+alpha_TB = 0.9541, 0.0018, -0.0017,\
+N_bkg_B = 3.605, 0.033, -0.033,\
+maxLH = 20707.2, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.017, 0, 0,\
+2520,,, YBCO-40nm, T=120.00 K, E=21.76 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-7.50 kV, SR=-10.00
+dataT = 120.001, 0.004, 0.004,\
+dataB = 1499.81, 0, 0,\
+dataE = 19.2619, 0, 0,\
+dataTr = 15.0187, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.16711, 0.00081, -0.0008,\
+Sigma = 0.0619, 0.0058, -0.0063,\
+Ph = -152.11, 0.55, -0.54,\
+Field = 1513.153, 0.029, -0.029,\
+RelPh_L = 0, 0, 0,\
+N0_L = 263.35, 0.3, -0.29,\
+N_bkg_L = 4.647, 0.038, -0.039,\
+RelPh_T = -90.62, 0.66, -0.68,\
+N0_T = 267.77, 0.3, -0.31,\
+N_bkg_T = 4.863, 0.039, -0.038,\
+RelPh_R = 181.79, 0.66, -0.68,\
+alpha_LR = 1.0067, 0.0016, -0.0016,\
+N_bkg_R = 5.119, 0.039, -0.039,\
+RelPh_B = 91.18, 0.68, -0.7,\
+alpha_TB = 0.9525, 0.0016, -0.0015,\
+N_bkg_B = 4.671, 0.038, -0.038,\
+maxLH = 20572.5, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.01039, 0, 0,\
+2521,,, YBCO-40nm, T=120.01 K, E=19.26 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-5.00 kV, SR=-10.00
+dataT = 120, 0.006, 0.006,\
+dataB = 1499.8, 0, 0,\
+dataE = 16.7609, 0, 0,\
+dataTr = 15.0188, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.16787, 0.0008, -0.0008,\
+Sigma = 0.0558, 0.0063, -0.0069,\
+Ph = -151.23, 0.54, -0.54,\
+Field = 1513.118, 0.029, -0.029,\
+RelPh_L = 0, 0, 0,\
+N0_L = 263.47, 0.3, -0.3,\
+N_bkg_L = 4.654, 0.038, -0.038,\
+RelPh_T = -91.14, 0.67, -0.66,\
+N0_T = 268.17, 0.3, -0.3,\
+N_bkg_T = 4.819, 0.039, -0.039,\
+RelPh_R = 181.17, 0.68, -0.67,\
+alpha_LR = 1.0052, 0.0016, -0.0016,\
+N_bkg_R = 5.111, 0.039, -0.039,\
+RelPh_B = 90.72, 0.68, -0.67,\
+alpha_TB = 0.9499, 0.0015, -0.0015,\
+N_bkg_B = 4.647, 0.038, -0.038,\
+maxLH = 20241.8, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 0.994146, 0, 0,\
+2522,,, YBCO-40nm, T=120.00 K, E=16.76 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-2.50 kV, SR=-10.00
+dataT = 120, 0.005, 0.005,\
+dataB = 1499.8, 0, 0,\
+dataE = 14.2611, 0, 0,\
+dataTr = 15.0188, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.16521, 0.0008, -0.0008,\
+Sigma = 0.0583, 0.0061, -0.0067,\
+Ph = -151.61, 0.55, -0.56,\
+Field = 1513.082, 0.029, -0.029,\
+RelPh_L = 0, 0, 0,\
+N0_L = 263.39, 0.3, -0.3,\
+N_bkg_L = 4.56, 0.038, -0.038,\
+RelPh_T = -89.15, 0.68, -0.68,\
+N0_T = 267.35, 0.3, -0.3,\
+N_bkg_T = 4.938, 0.039, -0.039,\
+RelPh_R = 180.19, 0.69, -0.68,\
+alpha_LR = 1.0052, 0.0016, -0.0016,\
+N_bkg_R = 5.079, 0.039, -0.039,\
+RelPh_B = 89.84, 0.69, -0.69,\
+alpha_TB = 0.9533, 0.0015, -0.0015,\
+N_bkg_B = 4.604, 0.038, -0.038,\
+maxLH = 20791.3, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.02113, 0, 0,\
+2523,,, YBCO-40nm, T=120.00 K, E=14.26 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/0.00 kV, SR=-10.00
+dataT = 119.999, 0.005, 0.005,\
+dataB = 1499.8, 0, 0,\
+dataE = 11.7651, 0, 0,\
+dataTr = 15.0189, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.16487, 0.0008, -0.0008,\
+Sigma = 0.0676, 0.0054, -0.0058,\
+Ph = -151.23, 0.57, -0.55,\
+Field = 1513.098, 0.03, -0.03,\
+RelPh_L = 0, 0, 0,\
+N0_L = 263.64, 0.3, -0.3,\
+N_bkg_L = 4.523, 0.038, -0.038,\
+RelPh_T = -90.51, 0.67, -0.69,\
+N0_T = 267.28, 0.3, -0.3,\
+N_bkg_T = 4.806, 0.039, -0.038,\
+RelPh_R = 180.31, 0.68, -0.7,\
+alpha_LR = 0.9997, 0.0016, -0.0016,\
+N_bkg_R = 5.061, 0.039, -0.039,\
+RelPh_B = 90.13, 0.69, -0.71,\
+alpha_TB = 0.9485, 0.0015, -0.0015,\
+N_bkg_B = 4.654, 0.038, -0.038,\
+maxLH = 20278.6, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 0.995953, 0, 0,\
+2524,,, YBCO-40nm, T=120.00 K, E=11.77 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/2.50 kV, SR=-10.00
+dataT = 120, 0.008, 0.008,\
+dataB = 1499.8, 0, 0,\
+dataE = 9.26475, 0, 0,\
+dataTr = 15.0189, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.16393, 0.0008, -0.00081,\
+Sigma = 0.0771, 0.005, -0.0053,\
+Ph = -152.46, 0.56, -0.57,\
+Field = 1513.117, 0.031, -0.031,\
+RelPh_L = 0, 0, 0,\
+N0_L = 263.73, 0.3, -0.3,\
+N_bkg_L = 4.689, 0.038, -0.039,\
+RelPh_T = -89.47, 0.69, -0.69,\
+N0_T = 269.4, 0.3, -0.3,\
+N_bkg_T = 4.741, 0.039, -0.039,\
+RelPh_R = 181.18, 0.69, -0.69,\
+alpha_LR = 1.0054, 0.0016, -0.0016,\
+N_bkg_R = 4.991, 0.039, -0.039,\
+RelPh_B = 91.51, 0.71, -0.71,\
+alpha_TB = 0.9437, 0.0015, -0.0015,\
+N_bkg_B = 4.576, 0.038, -0.038,\
+maxLH = 20462.3, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00498, 0, 0,\
+2525,,, YBCO-40nm, T=120.01 K, E=9.26 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/5.00 kV, SR=-10.00
+dataT = 120, 0.006, 0.006,\
+dataB = 1499.8, 0, 0,\
+dataE = 6.76675, 0, 0,\
+dataTr = 15.0188, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.15957, 0.00081, -0.00081,\
+Sigma = 0.0741, 0.0053, -0.0057,\
+Ph = -151.8, 0.58, -0.58,\
+Field = 1513.059, 0.031, -0.031,\
+RelPh_L = 0, 0, 0,\
+N0_L = 263.18, 0.3, -0.3,\
+N_bkg_L = 4.709, 0.039, -0.038,\
+RelPh_T = -90.14, 0.71, -0.71,\
+N0_T = 269.04, 0.3, -0.3,\
+N_bkg_T = 4.836, 0.039, -0.039,\
+RelPh_R = 180.64, 0.71, -0.71,\
+alpha_LR = 1.0099, 0.0016, -0.0016,\
+N_bkg_R = 5.117, 0.039, -0.039,\
+RelPh_B = 90.77, 0.73, -0.72,\
+alpha_TB = 0.9449, 0.0015, -0.0015,\
+N_bkg_B = 4.699, 0.038, -0.038,\
+maxLH = 20674.9, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.01542, 0, 0,\
+2526,,, YBCO-40nm, T=120.00 K, E=6.77 keV, B=~1500(G)/259.53(A), Tr/Sa=15.02/7.50 kV, SR=-10.00
+dataT = 120, 0.006, 0.006,\
+dataB = 1499.8, 0, 0,\
+dataE = 4.26974, 0, 0,\
+dataTr = 15.0189, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.15359, 0.00081, -0.00081,\
+Sigma = 0.0709, 0.0058, -0.0062,\
+Ph = -149.66, 0.59, -0.6,\
+Field = 1513.069, 0.032, -0.032,\
+RelPh_L = 0, 0, 0,\
+N0_L = 263.72, 0.3, -0.3,\
+N_bkg_L = 4.66, 0.038, -0.038,\
+RelPh_T = -92.13, 0.74, -0.73,\
+N0_T = 269.6, 0.3, -0.3,\
+N_bkg_T = 4.893, 0.039, -0.039,\
+RelPh_R = 180.65, 0.75, -0.74,\
+alpha_LR = 1.003, 0.0016, -0.0016,\
+N_bkg_R = 5.05, 0.039, -0.039,\
+RelPh_B = 88.51, 0.76, -0.75,\
+alpha_TB = 0.9391, 0.0015, -0.0015,\
+N_bkg_B = 4.642, 0.038, -0.038,\
+maxLH = 20689.6, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.01614, 0, 0,\
+2527,,, YBCO-40nm, T=120.00 K, E=4.27 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/9.99 kV, SR=-10.00
+
+
diff --git a/src/musredit_qt6/mupp/examples/YBCO-40nm-T30K-FC150mT-Escan.db b/src/musredit_qt6/mupp/examples/YBCO-40nm-T30K-FC150mT-Escan.db
new file mode 100644
index 00000000..deb5c042
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/YBCO-40nm-T30K-FC150mT-Escan.db
@@ -0,0 +1,282 @@
+TITLE
+>>>Put your title here<<<
+
+Abstract
+>>>Put your abstract here<<<
+
+LABELS
+T (K)
+B (G)
+Implantation Energy (keV)
+Transport (kV)
+RAL-RAR (kV)
+RAT-RAB (kV)
+Spin Rotation Angle (degree)
+Asy
+Sigma
+Ph
+Field
+RelPh_L
+N0_L
+N_bkg_L
+RelPh_T
+N0_T
+N_bkg_T
+RelPh_R
+alpha_LR
+N_bkg_R
+RelPh_B
+alpha_TB
+N_bkg_B
+maxLH
+NDF
+maxLHred
+RUN
+
+Data dataT dataB dataE dataTr dataRALRAR dataRATRAB dataSpinRot Asy Sigma Ph Field RelPh_L N0_L N_bkg_L RelPh_T N0_T N_bkg_T RelPh_R alpha_LR N_bkg_R RelPh_B alpha_TB N_bkg_B maxLH NDF maxLHred RUN
+\-e
+dataT = 30, 0.004, 0.004,\
+dataB = 1499.79, 0, 0,\
+dataE = 3.71947, 0, 0,\
+dataTr = 15.019, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1442, 0.0016, -0.0016,\
+Sigma = 1.094, 0.018, -0.018,\
+Ph = -137.3, 1.2, -1.2,\
+Field = 1505.51, 0.29, -0.29,\
+RelPh_L = 0, 0, 0,\
+N0_L = 259.62, 0.3, -0.3,\
+N_bkg_L = 4.85, 0.038, -0.039,\
+RelPh_T = -93.2, 1.4, -1.4,\
+N0_T = 268.18, 0.3, -0.3,\
+N_bkg_T = 5.057, 0.039, -0.039,\
+RelPh_R = 178, 1.4, -1.4,\
+alpha_LR = 1.0129, 0.0016, -0.0016,\
+N_bkg_R = 5.224, 0.039, -0.039,\
+RelPh_B = 89.1, 1.4, -1.4,\
+alpha_TB = 0.94, 0.0015, -0.0015,\
+N_bkg_B = 4.568, 0.038, -0.038,\
+maxLH = 20448.4, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00429, 0, 0,\
+2494,,, YBCO-40nm, T=30.00 K, E=3.72 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 30.001, 0.004, 0.004,\
+dataB = 1499.8, 0, 0,\
+dataE = 24.2563, 0, 0,\
+dataTr = 15.0187, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.08348, 0.00091, -0.00091,\
+Sigma = 0.2063, 0.0075, -0.0076,\
+Ph = -153.4, 1.2, -1.2,\
+Field = 1515.221, 0.084, -0.085,\
+RelPh_L = 0, 0, 0,\
+N0_L = 260.74, 0.3, -0.3,\
+N_bkg_L = 4.621, 0.038, -0.038,\
+RelPh_T = -92.4, 1.5, -1.5,\
+N0_T = 267.44, 0.3, -0.3,\
+N_bkg_T = 4.696, 0.038, -0.039,\
+RelPh_R = 178.1, 1.5, -1.5,\
+alpha_LR = 1.0208, 0.0016, -0.0016,\
+N_bkg_R = 5.086, 0.039, -0.039,\
+RelPh_B = 89.6, 1.5, -1.5,\
+alpha_TB = 0.9545, 0.0015, -0.0015,\
+N_bkg_B = 4.63, 0.038, -0.038,\
+maxLH = 20481.2, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.0059, 0, 0,\
+2537,,, YBCO-40nm, T=30.00 K, E=24.26 keV, B=~1500(G)/259.53(A), Tr/Sa=15.02/-9.99 kV, SR=-10.00
+dataT = 30, 0.003, 0.003,\
+dataB = 1499.8, 0, 0,\
+dataE = 21.7591, 0, 0,\
+dataTr = 15.0187, 0, 0,\
+dataRALRAR = 0.001, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.07978, 0.00093, -0.00092,\
+Sigma = 0.2078, 0.0083, -0.0082,\
+Ph = -152.2, 1.3, -1.3,\
+Field = 1514.882, 0.087, -0.087,\
+RelPh_L = 0, 0, 0,\
+N0_L = 260.97, 0.3, -0.3,\
+N_bkg_L = 4.582, 0.038, -0.038,\
+RelPh_T = -91.2, 1.5, -1.5,\
+N0_T = 267.3, 0.3, -0.3,\
+N_bkg_T = 4.755, 0.039, -0.039,\
+RelPh_R = 181, 1.6, -1.6,\
+alpha_LR = 1.0185, 0.0016, -0.0016,\
+N_bkg_R = 5.1, 0.039, -0.039,\
+RelPh_B = 87.6, 1.6, -1.6,\
+alpha_TB = 0.9575, 0.0015, -0.0015,\
+N_bkg_B = 4.699, 0.038, -0.038,\
+maxLH = 20504.8, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00706, 0, 0,\
+2538,,, YBCO-40nm, T=30.00 K, E=21.76 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-7.50 kV, SR=-10.00
+dataT = 30, 0.003, 0.003,\
+dataB = 1499.8, 0, 0,\
+dataE = 19.2619, 0, 0,\
+dataTr = 15.0188, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.08063, 0.001, -0.001,\
+Sigma = 0.2839, 0.0096, -0.0095,\
+Ph = -154.9, 1.3, -1.3,\
+Field = 1515.06, 0.11, -0.11,\
+RelPh_L = 0, 0, 0,\
+N0_L = 261.98, 0.3, -0.3,\
+N_bkg_L = 4.56, 0.038, -0.038,\
+RelPh_T = -87.7, 1.6, -1.6,\
+N0_T = 268.62, 0.3, -0.3,\
+N_bkg_T = 4.78, 0.039, -0.039,\
+RelPh_R = 180.4, 1.6, -1.7,\
+alpha_LR = 1.0135, 0.0016, -0.0016,\
+N_bkg_R = 5.194, 0.039, -0.039,\
+RelPh_B = 91.6, 1.6, -1.6,\
+alpha_TB = 0.9534, 0.0015, -0.0015,\
+N_bkg_B = 4.484, 0.038, -0.038,\
+maxLH = 20460.1, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00487, 0, 0,\
+2539,,, YBCO-40nm, T=30.00 K, E=19.26 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/-5.00 kV, SR=-10.00
+dataT = 30, 0.004, 0.004,\
+dataB = 1499.8, 0, 0,\
+dataE = 16.7617, 0, 0,\
+dataTr = 15.0188, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.0837, 0.0011, -0.0011,\
+Sigma = 0.366, 0.011, -0.011,\
+Ph = -149.9, 1.3, -1.3,\
+Field = 1514.86, 0.13, -0.13,\
+RelPh_L = 0, 0, 0,\
+N0_L = 259.64, 0.29, -0.3,\
+N_bkg_L = 4.465, 0.038, -0.038,\
+RelPh_T = -93.5, 1.7, -1.7,\
+N0_T = 265.43, 0.3, -0.3,\
+N_bkg_T = 4.757, 0.039, -0.039,\
+RelPh_R = 174.2, 1.7, -1.7,\
+alpha_LR = 1.0139, 0.0017, -0.0016,\
+N_bkg_R = 5.005, 0.039, -0.039,\
+RelPh_B = 90.1, 1.7, -1.7,\
+alpha_TB = 0.9547, 0.0015, -0.0015,\
+N_bkg_B = 4.445, 0.038, -0.038,\
+maxLH = 20779.3, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.02054, 0, 0,\
+2540,,, YBCO-40nm, T=30.00 K, E=16.76 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-2.50 kV, SR=-10.00
+dataT = 30, 0.004, 0.004,\
+dataB = 1499.8, 0, 0,\
+dataE = 14.2611, 0, 0,\
+dataTr = 15.0188, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.0932, 0.0012, -0.0012,\
+Sigma = 0.514, 0.013, -0.013,\
+Ph = -154.3, 1.3, -1.3,\
+Field = 1514.6, 0.17, -0.17,\
+RelPh_L = 0, 0, 0,\
+N0_L = 262.63, 0.3, -0.3,\
+N_bkg_L = 4.373, 0.038, -0.038,\
+RelPh_T = -87.8, 1.6, -1.6,\
+N0_T = 268.94, 0.3, -0.3,\
+N_bkg_T = 4.63, 0.039, -0.039,\
+RelPh_R = 179.6, 1.6, -1.6,\
+alpha_LR = 1.0106, 0.0016, -0.0016,\
+N_bkg_R = 5.126, 0.039, -0.039,\
+RelPh_B = 90, 1.7, -1.7,\
+alpha_TB = 0.9504, 0.0015, -0.0015,\
+N_bkg_B = 4.514, 0.038, -0.038,\
+maxLH = 20664.5, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.01491, 0, 0,\
+2541,,, YBCO-40nm, T=30.00 K, E=14.26 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/0.00 kV, SR=-10.00
+dataT = 30, 0.003, 0.003,\
+dataB = 1499.8, 0, 0,\
+dataE = 11.7643, 0, 0,\
+dataTr = 15.0188, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1078, 0.0014, -0.0014,\
+Sigma = 0.776, 0.017, -0.017,\
+Ph = -152.4, 1.4, -1.4,\
+Field = 1513.86, 0.24, -0.25,\
+RelPh_L = 0, 0, 0,\
+N0_L = 262.04, 0.3, -0.3,\
+N_bkg_L = 4.51, 0.038, -0.038,\
+RelPh_T = -86.9, 1.6, -1.6,\
+N0_T = 268.88, 0.3, -0.3,\
+N_bkg_T = 4.803, 0.039, -0.039,\
+RelPh_R = 179.4, 1.7, -1.6,\
+alpha_LR = 1.0167, 0.0016, -0.0016,\
+N_bkg_R = 5.099, 0.039, -0.039,\
+RelPh_B = 88.5, 1.7, -1.7,\
+alpha_TB = 0.9521, 0.0015, -0.0015,\
+N_bkg_B = 4.448, 0.038, -0.038,\
+maxLH = 20231.1, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 0.99362, 0, 0,\
+2542,,, YBCO-40nm, T=30.00 K, E=11.76 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/2.50 kV, SR=-10.00
+dataT = 30, 0.004, 0.004,\
+dataB = 1499.8, 0, 0,\
+dataE = 9.26416, 0, 0,\
+dataTr = 15.0187, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1273, 0.0016, -0.0016,\
+Sigma = 1.025, 0.019, -0.018,\
+Ph = -149.6, 1.3, -1.3,\
+Field = 1510.71, 0.3, -0.3,\
+RelPh_L = 0, 0, 0,\
+N0_L = 261.52, 0.3, -0.29,\
+N_bkg_L = 4.497, 0.038, -0.038,\
+RelPh_T = -88, 1.6, -1.6,\
+N0_T = 268.62, 0.3, -0.3,\
+N_bkg_T = 4.729, 0.039, -0.039,\
+RelPh_R = 181, 1.6, -1.6,\
+alpha_LR = 1.0176, 0.0016, -0.0016,\
+N_bkg_R = 5.077, 0.039, -0.039,\
+RelPh_B = 91.7, 1.6, -1.6,\
+alpha_TB = 0.9499, 0.0015, -0.0015,\
+N_bkg_B = 4.48, 0.038, -0.038,\
+maxLH = 20527.6, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00818, 0, 0,\
+2543,,, YBCO-40nm, T=30.00 K, E=9.26 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/5.00 kV, SR=-10.00
+dataT = 30, 0.003, 0.003,\
+dataB = 1499.8, 0, 0,\
+dataE = 6.76694, 0, 0,\
+dataTr = 15.0187, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1417, 0.0017, -0.0016,\
+Sigma = 1.144, 0.019, -0.019,\
+Ph = -144.9, 1.3, -1.3,\
+Field = 1508.39, 0.31, -0.31,\
+RelPh_L = 0, 0, 0,\
+N0_L = 261.99, 0.3, -0.3,\
+N_bkg_L = 4.442, 0.038, -0.038,\
+RelPh_T = -92.4, 1.5, -1.5,\
+N0_T = 268.51, 0.3, -0.3,\
+N_bkg_T = 4.721, 0.039, -0.039,\
+RelPh_R = 180.8, 1.5, -1.5,\
+alpha_LR = 1.0138, 0.0016, -0.0016,\
+N_bkg_R = 5.004, 0.039, -0.039,\
+RelPh_B = 91.2, 1.5, -1.5,\
+alpha_TB = 0.9496, 0.0015, -0.0015,\
+N_bkg_B = 4.493, 0.038, -0.038,\
+maxLH = 20633.8, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.0134, 0, 0,\
+2544,,, YBCO-40nm, T=30.00 K, E=6.77 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/7.50 kV, SR=-10.00
+
+
diff --git a/src/musredit_qt6/mupp/examples/YBCO-40nm-T5K-FC150mT-Escan.db b/src/musredit_qt6/mupp/examples/YBCO-40nm-T5K-FC150mT-Escan.db
new file mode 100644
index 00000000..e81c8872
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/YBCO-40nm-T5K-FC150mT-Escan.db
@@ -0,0 +1,309 @@
+TITLE
+>>>Put your title here<<<
+
+Abstract
+>>>Put your abstract here<<<
+
+LABELS
+T (K)
+B (G)
+Implantation Energy (keV)
+Transport (kV)
+RAL-RAR (kV)
+RAT-RAB (kV)
+Spin Rotation Angle (degree)
+Asy
+Sigma
+Ph
+Field
+RelPh_L
+N0_L
+N_bkg_L
+RelPh_T
+N0_T
+N_bkg_T
+RelPh_R
+alpha_LR
+N_bkg_R
+RelPh_B
+alpha_TB
+N_bkg_B
+maxLH
+NDF
+maxLHred
+RUN
+
+Data dataT dataB dataE dataTr dataRALRAR dataRATRAB dataSpinRot Asy Sigma Ph Field RelPh_L N0_L N_bkg_L RelPh_T N0_T N_bkg_T RelPh_R alpha_LR N_bkg_R RelPh_B alpha_TB N_bkg_B maxLH NDF maxLHred RUN
+\-e
+dataT = 4.998, 0.007, 0.007,\
+dataB = 1499.8, 0, 0,\
+dataE = 3.71908, 0, 0,\
+dataTr = 15.0189, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1344, 0.0015, -0.0015,\
+Sigma = 1.195, 0.019, -0.019,\
+Ph = -135.1, 1.2, -1.2,\
+Field = 1503.89, 0.32, -0.32,\
+RelPh_L = 0, 0, 0,\
+N0_L = 313.46, 0.33, -0.32,\
+N_bkg_L = 5.724, 0.042, -0.042,\
+RelPh_T = -90.8, 1.4, -1.4,\
+N0_T = 322.27, 0.33, -0.33,\
+N_bkg_T = 6.028, 0.043, -0.043,\
+RelPh_R = 175.3, 1.5, -1.5,\
+alpha_LR = 1.0103, 0.0015, -0.0015,\
+N_bkg_R = 6.222, 0.043, -0.043,\
+RelPh_B = 86.5, 1.5, -1.5,\
+alpha_TB = 0.9401, 0.0014, -0.0014,\
+N_bkg_B = 5.563, 0.041, -0.042,\
+maxLH = 20911.8, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.02705, 0, 0,\
+2497,,, YBCO-40nm, T=4.99 K, E=3.72 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 4.998, 0.007, 0.007,\
+dataB = 1499.79, 0, 0,\
+dataE = 5.26731, 0, 0,\
+dataTr = 15.0189, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1307, 0.0018, -0.0018,\
+Sigma = 1.276, 0.025, -0.025,\
+Ph = -139.5, 1.4, -1.5,\
+Field = 1504.23, 0.4, -0.39,\
+RelPh_L = 0, 0, 0,\
+N0_L = 262.85, 0.3, -0.3,\
+N_bkg_L = 4.611, 0.038, -0.038,\
+RelPh_T = -87.5, 1.7, -1.7,\
+N0_T = 269.2, 0.3, -0.3,\
+N_bkg_T = 4.83, 0.039, -0.039,\
+RelPh_R = 178.1, 1.7, -1.7,\
+alpha_LR = 1.0069, 0.0016, -0.0016,\
+N_bkg_R = 5.114, 0.039, -0.039,\
+RelPh_B = 89.6, 1.7, -1.7,\
+alpha_TB = 0.9394, 0.0015, -0.0015,\
+N_bkg_B = 4.564, 0.038, -0.038,\
+maxLH = 20497.6, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00671, 0, 0,\
+2528,,, YBCO-40nm, T=5.01 K, E=5.27 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/9.00 kV, SR=-10.00
+dataT = 4.998, 0.008, 0.008,\
+dataB = 1499.79, 0, 0,\
+dataE = 6.76675, 0, 0,\
+dataTr = 15.0188, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1285, 0.0017, -0.0018,\
+Sigma = 1.295, 0.025, -0.025,\
+Ph = -143, 1.5, -1.5,\
+Field = 1507.23, 0.4, -0.4,\
+RelPh_L = 0, 0, 0,\
+N0_L = 262.67, 0.3, -0.3,\
+N_bkg_L = 4.636, 0.038, -0.038,\
+RelPh_T = -91.3, 1.7, -1.7,\
+N0_T = 268.61, 0.3, -0.3,\
+N_bkg_T = 4.84, 0.039, -0.039,\
+RelPh_R = 178.3, 1.7, -1.7,\
+alpha_LR = 1.0105, 0.0016, -0.0016,\
+N_bkg_R = 5.149, 0.039, -0.039,\
+RelPh_B = 88.5, 1.8, -1.8,\
+alpha_TB = 0.9447, 0.0015, -0.0015,\
+N_bkg_B = 4.557, 0.038, -0.038,\
+maxLH = 20497.7, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00671, 0, 0,\
+2529,,, YBCO-40nm, T=5.00 K, E=6.77 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/7.50 kV, SR=-10.00
+dataT = 4.999, 0.009, 0.009,\
+dataB = 1499.79, 0, 0,\
+dataE = 9.26416, 0, 0,\
+dataTr = 15.0188, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1268, 0.0017, -0.0017,\
+Sigma = 1.17, 0.022, -0.022,\
+Ph = -146, 1.4, -1.5,\
+Field = 1511.56, 0.38, -0.37,\
+RelPh_L = 0, 0, 0,\
+N0_L = 248.36, 0.3, -0.3,\
+N_bkg_L = 6.824, 0.041, -0.041,\
+RelPh_T = -96.6, 1.7, -1.7,\
+N0_T = 254.82, 0.3, -0.3,\
+N_bkg_T = 7.073, 0.042, -0.042,\
+RelPh_R = 177.1, 1.7, -1.7,\
+alpha_LR = 1.0124, 0.0017, -0.0017,\
+N_bkg_R = 7.658, 0.042, -0.043,\
+RelPh_B = 84.5, 1.8, -1.8,\
+alpha_TB = 0.9465, 0.0016, -0.0016,\
+N_bkg_B = 6.801, 0.041, -0.041,\
+maxLH = 20224.1, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 0.993276, 0, 0,\
+2530,,, YBCO-40nm, T=4.99 K, E=9.26 keV, B=~1500(G)/259.53(A), Tr/Sa=15.02/5.00 kV, SR=-10.00
+dataT = 5, 0.01, 0.01,\
+dataB = 1499.79, 0, 0,\
+dataE = 11.7651, 0, 0,\
+dataTr = 15.0189, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.114, 0.0014, -0.0014,\
+Sigma = 0.804, 0.016, -0.016,\
+Ph = -151.3, 1.3, -1.3,\
+Field = 1514.28, 0.24, -0.24,\
+RelPh_L = 0, 0, 0,\
+N0_L = 263.05, 0.3, -0.3,\
+N_bkg_L = 4.629, 0.038, -0.038,\
+RelPh_T = -89.2, 1.6, -1.6,\
+N0_T = 267.73, 0.3, -0.3,\
+N_bkg_T = 4.794, 0.039, -0.039,\
+RelPh_R = 181.6, 1.6, -1.6,\
+alpha_LR = 1.0108, 0.0016, -0.0016,\
+N_bkg_R = 5.149, 0.039, -0.039,\
+RelPh_B = 87.1, 1.6, -1.6,\
+alpha_TB = 0.9522, 0.0015, -0.0015,\
+N_bkg_B = 4.666, 0.038, -0.038,\
+maxLH = 20587.8, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.01114, 0, 0,\
+2531,,, YBCO-40nm, T=5.00 K, E=11.76 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/2.50 kV, SR=-10.00
+dataT = 5, 0.009, 0.009,\
+dataB = 1499.79, 0, 0,\
+dataE = 14.2681, 0, 0,\
+dataTr = 15.0188, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1108, 0.0013, -0.0013,\
+Sigma = 0.566, 0.012, -0.012,\
+Ph = -152.2, 1.2, -1.2,\
+Field = 1515.19, 0.16, -0.16,\
+RelPh_L = 0, 0, 0,\
+N0_L = 262.77, 0.3, -0.3,\
+N_bkg_L = 4.568, 0.038, -0.038,\
+RelPh_T = -90.5, 1.4, -1.4,\
+N0_T = 266.86, 0.3, -0.3,\
+N_bkg_T = 4.788, 0.039, -0.039,\
+RelPh_R = 179.8, 1.4, -1.4,\
+alpha_LR = 1.0129, 0.0016, -0.0016,\
+N_bkg_R = 5.145, 0.039, -0.04,\
+RelPh_B = 89.5, 1.5, -1.5,\
+alpha_TB = 0.9534, 0.0015, -0.0015,\
+N_bkg_B = 4.67, 0.038, -0.038,\
+maxLH = 20578.7, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.01069, 0, 0,\
+2532,,, YBCO-40nm, T=5.00 K, E=14.27 keV, B=~1500(G)/259.53(A), Tr/Sa=15.02/-0.00 kV, SR=-10.00
+dataT = 5, 0.008, 0.008,\
+dataB = 1499.8, 0, 0,\
+dataE = 16.7611, 0, 0,\
+dataTr = 15.0188, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1072, 0.0011, -0.0011,\
+Sigma = 0.418, 0.009, -0.0089,\
+Ph = -149.2, 1.1, -1.1,\
+Field = 1514.96, 0.12, -0.12,\
+RelPh_L = 0, 0, 0,\
+N0_L = 263.94, 0.3, -0.3,\
+N_bkg_L = 4.515, 0.038, -0.038,\
+RelPh_T = -94.2, 1.3, -1.3,\
+N0_T = 264.28, 0.3, -0.3,\
+N_bkg_T = 4.805, 0.039, -0.039,\
+RelPh_R = 177.3, 1.4, -1.4,\
+alpha_LR = 1.0129, 0.0016, -0.0016,\
+N_bkg_R = 5.059, 0.039, -0.039,\
+RelPh_B = 87.9, 1.4, -1.4,\
+alpha_TB = 0.9694, 0.0016, -0.0016,\
+N_bkg_B = 4.635, 0.038, -0.038,\
+maxLH = 20300.8, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 0.997043, 0, 0,\
+2533,,, YBCO-40nm, T=4.99 K, E=16.76 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-2.50 kV, SR=-10.00
+dataT = 5, 0.007, 0.007,\
+dataB = 1499.79, 0, 0,\
+dataE = 19.2619, 0, 0,\
+dataTr = 15.0189, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1043, 0.001, -0.001,\
+Sigma = 0.309, 0.0075, -0.0074,\
+Ph = -151.7, 1.1, -1,\
+Field = 1514.903, 0.092, -0.092,\
+RelPh_L = 0, 0, 0,\
+N0_L = 262.43, 0.3, -0.3,\
+N_bkg_L = 4.574, 0.038, -0.038,\
+RelPh_T = -90.6, 1.3, -1.3,\
+N0_T = 268.19, 0.3, -0.3,\
+N_bkg_T = 4.824, 0.039, -0.039,\
+RelPh_R = 180.9, 1.3, -1.3,\
+alpha_LR = 1.0128, 0.0016, -0.0016,\
+N_bkg_R = 5.112, 0.039, -0.039,\
+RelPh_B = 90.8, 1.3, -1.3,\
+alpha_TB = 0.9505, 0.0015, -0.0015,\
+N_bkg_B = 4.593, 0.038, -0.038,\
+maxLH = 20473.5, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00553, 0, 0,\
+2534,,, YBCO-40nm, T=4.99 K, E=19.26 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-5.00 kV, SR=-10.00
+dataT = 5, 0.007, 0.007,\
+dataB = 1499.79, 0, 0,\
+dataE = 21.7593, 0, 0,\
+dataTr = 15.0189, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.10474, 0.00098, -0.00098,\
+Sigma = 0.2659, 0.0071, -0.007,\
+Ph = -150.4, 1, -1,\
+Field = 1515.035, 0.08, -0.08,\
+RelPh_L = 0, 0, 0,\
+N0_L = 261.39, 0.3, -0.3,\
+N_bkg_L = 4.543, 0.038, -0.038,\
+RelPh_T = -90.9, 1.2, -1.2,\
+N0_T = 268.52, 0.3, -0.3,\
+N_bkg_T = 4.69, 0.039, -0.039,\
+RelPh_R = 178.2, 1.2, -1.2,\
+alpha_LR = 1.0139, 0.0016, -0.0016,\
+N_bkg_R = 5.083, 0.039, -0.039,\
+RelPh_B = 89.2, 1.3, -1.3,\
+alpha_TB = 0.9471, 0.0015, -0.0015,\
+N_bkg_B = 4.607, 0.038, -0.038,\
+maxLH = 20622.1, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.01282, 0, 0,\
+2535,,, YBCO-40nm, T=4.99 K, E=21.76 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-7.50 kV, SR=-10.00
+dataT = 5.001, 0.01, 0.01,\
+dataB = 1499.79, 0, 0,\
+dataE = 24.2563, 0, 0,\
+dataTr = 15.0188, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.10771, 0.00094, -0.00094,\
+Sigma = 0.2397, 0.0062, -0.0062,\
+Ph = -152.55, 0.97, -0.97,\
+Field = 1515.146, 0.073, -0.072,\
+RelPh_L = 0, 0, 0,\
+N0_L = 262.19, 0.3, -0.3,\
+N_bkg_L = 4.579, 0.038, -0.038,\
+RelPh_T = -89.5, 1.2, -1.2,\
+N0_T = 267.63, 0.3, -0.3,\
+N_bkg_T = 4.748, 0.039, -0.039,\
+RelPh_R = 179.4, 1.2, -1.2,\
+alpha_LR = 1.0111, 0.0016, -0.0016,\
+N_bkg_R = 5.27, 0.039, -0.04,\
+RelPh_B = 89.3, 1.2, -1.2,\
+alpha_TB = 0.9562, 0.0015, -0.0015,\
+N_bkg_B = 4.564, 0.038, -0.038,\
+maxLH = 20230, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 0.993566, 0, 0,\
+2536,,, YBCO-40nm, T=5.00 K, E=24.26 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-9.99 kV, SR=-10.00
+
+
diff --git a/src/musredit_qt6/mupp/examples/YBCO-40nm-T60K-FC150mT-Escan.db b/src/musredit_qt6/mupp/examples/YBCO-40nm-T60K-FC150mT-Escan.db
new file mode 100644
index 00000000..c3a01b3e
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/YBCO-40nm-T60K-FC150mT-Escan.db
@@ -0,0 +1,282 @@
+TITLE
+>>>Put your title here<<<
+
+Abstract
+>>>Put your abstract here<<<
+
+LABELS
+T (K)
+B (G)
+Implantation Energy (keV)
+Transport (kV)
+RAL-RAR (kV)
+RAT-RAB (kV)
+Spin Rotation Angle (degree)
+Asy
+Sigma
+Ph
+Field
+RelPh_L
+N0_L
+N_bkg_L
+RelPh_T
+N0_T
+N_bkg_T
+RelPh_R
+alpha_LR
+N_bkg_R
+RelPh_B
+alpha_TB
+N_bkg_B
+maxLH
+NDF
+maxLHred
+RUN
+
+Data dataT dataB dataE dataTr dataRALRAR dataRATRAB dataSpinRot Asy Sigma Ph Field RelPh_L N0_L N_bkg_L RelPh_T N0_T N_bkg_T RelPh_R alpha_LR N_bkg_R RelPh_B alpha_TB N_bkg_B maxLH NDF maxLHred RUN
+\-e
+dataT = 60.001, 0.004, 0.004,\
+dataB = 1499.8, 0, 0,\
+dataE = 3.71947, 0, 0,\
+dataTr = 15.0189, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.147, 0.0014, -0.0014,\
+Sigma = 0.747, 0.011, -0.011,\
+Ph = -140.6, 1, -1,\
+Field = 1509.2, 0.17, -0.17,\
+RelPh_L = 0, 0, 0,\
+N0_L = 261.28, 0.3, -0.3,\
+N_bkg_L = 4.777, 0.039, -0.038,\
+RelPh_T = -92.4, 1.2, -1.2,\
+N0_T = 268.75, 0.3, -0.3,\
+N_bkg_T = 4.861, 0.039, -0.039,\
+RelPh_R = 177.8, 1.2, -1.2,\
+alpha_LR = 1.0073, 0.0016, -0.0016,\
+N_bkg_R = 5.148, 0.039, -0.039,\
+RelPh_B = 86.7, 1.2, -1.2,\
+alpha_TB = 0.9345, 0.0015, -0.0015,\
+N_bkg_B = 4.798, 0.038, -0.038,\
+maxLH = 20785.1, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.02083, 0, 0,\
+2491,,, YBCO-40nm, T=60.00 K, E=3.72 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/10.54 kV, SR=-10.00
+dataT = 60.002, 0.006, 0.006,\
+dataB = 1499.8, 0, 0,\
+dataE = 6.76694, 0, 0,\
+dataTr = 15.0188, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1476, 0.0013, -0.0013,\
+Sigma = 0.735, 0.011, -0.01,\
+Ph = -146.8, 1, -0.99,\
+Field = 1510.91, 0.17, -0.17,\
+RelPh_L = 0, 0, 0,\
+N0_L = 261.89, 0.3, -0.29,\
+N_bkg_L = 4.458, 0.038, -0.038,\
+RelPh_T = -87.9, 1.2, -1.2,\
+N0_T = 268.51, 0.3, -0.3,\
+N_bkg_T = 4.69, 0.039, -0.039,\
+RelPh_R = 179.6, 1.2, -1.2,\
+alpha_LR = 1.0155, 0.0016, -0.0016,\
+N_bkg_R = 5.098, 0.039, -0.039,\
+RelPh_B = 91.4, 1.2, -1.2,\
+alpha_TB = 0.9506, 0.0015, -0.0015,\
+N_bkg_B = 4.481, 0.038, -0.038,\
+maxLH = 20613.6, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.01241, 0, 0,\
+2545,,, YBCO-40nm, T=60.01 K, E=6.77 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/7.50 kV, SR=-10.00
+dataT = 60, 0.005, 0.005,\
+dataB = 1499.8, 0, 0,\
+dataE = 9.26435, 0, 0,\
+dataTr = 15.0189, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1535, 0.0013, -0.0012,\
+Sigma = 0.596, 0.0085, -0.0083,\
+Ph = -148.84, 0.88, -0.89,\
+Field = 1512.77, 0.13, -0.12,\
+RelPh_L = 0, 0, 0,\
+N0_L = 262.18, 0.3, -0.3,\
+N_bkg_L = 4.427, 0.038, -0.038,\
+RelPh_T = -87.5, 1, -1,\
+N0_T = 268.62, 0.3, -0.3,\
+N_bkg_T = 4.759, 0.039, -0.039,\
+RelPh_R = 179.5, 1.1, -1.1,\
+alpha_LR = 1.0177, 0.0016, -0.0016,\
+N_bkg_R = 4.994, 0.039, -0.039,\
+RelPh_B = 89.3, 1.1, -1.1,\
+alpha_TB = 0.9487, 0.0015, -0.0015,\
+N_bkg_B = 4.516, 0.038, -0.038,\
+maxLH = 20472.6, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00548, 0, 0,\
+2546,,, YBCO-40nm, T=59.99 K, E=9.26 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/5.00 kV, SR=-10.00
+dataT = 60, 0.005, 0.005,\
+dataB = 1499.8, 0, 0,\
+dataE = 11.7643, 0, 0,\
+dataTr = 15.0187, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.1513, 0.0011, -0.0011,\
+Sigma = 0.4161, 0.0063, -0.0062,\
+Ph = -150.95, 0.79, -0.79,\
+Field = 1514.144, 0.085, -0.085,\
+RelPh_L = 0, 0, 0,\
+N0_L = 262.23, 0.29, -0.3,\
+N_bkg_L = 4.478, 0.039, -0.038,\
+RelPh_T = -91.48, 0.95, -0.95,\
+N0_T = 269.03, 0.3, -0.3,\
+N_bkg_T = 4.717, 0.039, -0.039,\
+RelPh_R = 179.73, 0.96, -0.96,\
+alpha_LR = 1.0134, 0.0016, -0.0016,\
+N_bkg_R = 4.993, 0.039, -0.039,\
+RelPh_B = 89.12, 0.97, -0.97,\
+alpha_TB = 0.9471, 0.0015, -0.0015,\
+N_bkg_B = 4.442, 0.038, -0.038,\
+maxLH = 20270.1, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 0.995536, 0, 0,\
+2547,,, YBCO-40nm, T=60.00 K, E=11.76 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/2.50 kV, SR=-10.00
+dataT = 60.001, 0.006, 0.006,\
+dataB = 1499.8, 0, 0,\
+dataE = 14.2681, 0, 0,\
+dataTr = 15.0188, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.15785, 0.00099, -0.00099,\
+Sigma = 0.3103, 0.0047, -0.0047,\
+Ph = -153.17, 0.7, -0.7,\
+Field = 1514.501, 0.062, -0.062,\
+RelPh_L = 0, 0, 0,\
+N0_L = 261.95, 0.3, -0.3,\
+N_bkg_L = 4.515, 0.038, -0.038,\
+RelPh_T = -89.61, 0.84, -0.84,\
+N0_T = 269.4, 0.3, -0.3,\
+N_bkg_T = 4.726, 0.039, -0.039,\
+RelPh_R = 179.84, 0.86, -0.85,\
+alpha_LR = 1.0163, 0.0016, -0.0016,\
+N_bkg_R = 5.09, 0.039, -0.039,\
+RelPh_B = 92.59, 0.86, -0.86,\
+alpha_TB = 0.9473, 0.0015, -0.0015,\
+N_bkg_B = 4.501, 0.038, -0.038,\
+maxLH = 20649.4, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.01416, 0, 0,\
+2548,,, YBCO-40nm, T=60.01 K, E=14.27 keV, B=~1500(G)/259.53(A), Tr/Sa=15.02/-0.00 kV, SR=-10.00
+dataT = 60.001, 0.007, 0.007,\
+dataB = 1499.8, 0, 0,\
+dataE = 16.7617, 0, 0,\
+dataTr = 15.019, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.15722, 0.00091, -0.0009,\
+Sigma = 0.212, 0.004, -0.004,\
+Ph = -153.06, 0.65, -0.65,\
+Field = 1514.458, 0.046, -0.046,\
+RelPh_L = 0, 0, 0,\
+N0_L = 261.81, 0.3, -0.3,\
+N_bkg_L = 4.604, 0.038, -0.038,\
+RelPh_T = -89.15, 0.79, -0.79,\
+N0_T = 268.37, 0.3, -0.3,\
+N_bkg_T = 4.703, 0.039, -0.039,\
+RelPh_R = 180.5, 0.79, -0.8,\
+alpha_LR = 1.0148, 0.0016, -0.0016,\
+N_bkg_R = 5.109, 0.039, -0.039,\
+RelPh_B = 90.96, 0.8, -0.8,\
+alpha_TB = 0.9532, 0.0015, -0.0015,\
+N_bkg_B = 4.504, 0.038, -0.038,\
+maxLH = 20378, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00083, 0, 0,\
+2549,,, YBCO-40nm, T=60.01 K, E=16.76 keV, B=~1500(G)/259.51(A), Tr/Sa=15.02/-2.50 kV, SR=-10.00
+dataT = 60.001, 0.005, 0.005,\
+dataB = 1499.79, 0, 0,\
+dataE = 19.2613, 0, 0,\
+dataTr = 15.0189, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.16082, 0.00087, -0.00087,\
+Sigma = 0.1791, 0.0037, -0.0038,\
+Ph = -152.69, 0.62, -0.62,\
+Field = 1514.425, 0.041, -0.041,\
+RelPh_L = 0, 0, 0,\
+N0_L = 261.91, 0.3, -0.29,\
+N_bkg_L = 4.489, 0.038, -0.038,\
+RelPh_T = -89.39, 0.75, -0.75,\
+N0_T = 268.52, 0.3, -0.3,\
+N_bkg_T = 4.747, 0.039, -0.039,\
+RelPh_R = 180.2, 0.75, -0.75,\
+alpha_LR = 1.0184, 0.0016, -0.0016,\
+N_bkg_R = 5.031, 0.039, -0.039,\
+RelPh_B = 90.14, 0.77, -0.77,\
+alpha_TB = 0.9547, 0.0015, -0.0015,\
+N_bkg_B = 4.476, 0.038, -0.038,\
+maxLH = 20203.3, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 0.992255, 0, 0,\
+2550,,, YBCO-40nm, T=60.00 K, E=19.26 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-5.00 kV, SR=-10.00
+dataT = 60, 0.004, 0.004,\
+dataB = 1499.8, 0, 0,\
+dataE = 21.7593, 0, 0,\
+dataTr = 15.0188, 0, 0,\
+dataRALRAR = 0.003, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.16364, 0.00085, -0.00085,\
+Sigma = 0.1516, 0.0037, -0.0037,\
+Ph = -152.29, 0.6, -0.6,\
+Field = 1514.42, 0.037, -0.037,\
+RelPh_L = 0, 0, 0,\
+N0_L = 262.97, 0.3, -0.3,\
+N_bkg_L = 4.458, 0.038, -0.038,\
+RelPh_T = -91.12, 0.72, -0.72,\
+N0_T = 269.33, 0.3, -0.3,\
+N_bkg_T = 4.67, 0.039, -0.038,\
+RelPh_R = 179.28, 0.73, -0.73,\
+alpha_LR = 1.016, 0.0016, -0.0016,\
+N_bkg_R = 5.075, 0.039, -0.039,\
+RelPh_B = 90.38, 0.74, -0.74,\
+alpha_TB = 0.9519, 0.0015, -0.0015,\
+N_bkg_B = 4.514, 0.038, -0.038,\
+maxLH = 20545.3, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 1.00905, 0, 0,\
+2551,,, YBCO-40nm, T=59.98 K, E=21.76 keV, B=~1500(G)/259.53(A), Tr/Sa=15.02/-7.50 kV, SR=-10.00
+dataT = 60, 0.005, 0.005,\
+dataB = 1499.8, 0, 0,\
+dataE = 24.2569, 0, 0,\
+dataTr = 15.0189, 0, 0,\
+dataRALRAR = 0.002, 0, 0,\
+dataRATRAB = -0.006, 0, 0,\
+dataSpinRot = -10, 0, 0,\
+Asy = 0.16464, 0.00083, -0.00083,\
+Sigma = 0.1287, 0.0038, -0.0039,\
+Ph = -153.79, 0.58, -0.58,\
+Field = 1514.54, 0.034, -0.034,\
+RelPh_L = 0, 0, 0,\
+N0_L = 263.23, 0.3, -0.3,\
+N_bkg_L = 4.432, 0.038, -0.038,\
+RelPh_T = -88.82, 0.71, -0.71,\
+N0_T = 267.99, 0.3, -0.3,\
+N_bkg_T = 4.671, 0.039, -0.038,\
+RelPh_R = 180.89, 0.71, -0.71,\
+alpha_LR = 1.0159, 0.0016, -0.0016,\
+N_bkg_R = 4.965, 0.039, -0.039,\
+RelPh_B = 91.04, 0.72, -0.72,\
+alpha_TB = 0.9562, 0.0015, -0.0015,\
+N_bkg_B = 4.534, 0.038, -0.038,\
+maxLH = 20299.8, 0, 0,\
+NDF = 20361, 0, 0,\
+maxLHred = 0.996994, 0, 0,\
+2552,,, YBCO-40nm, T=60.00 K, E=24.26 keV, B=~1500(G)/259.52(A), Tr/Sa=15.02/-9.99 kV, SR=-10.00
+
+
diff --git a/src/musredit_qt6/mupp/examples/field-vs-energy.txt b/src/musredit_qt6/mupp/examples/field-vs-energy.txt
new file mode 100644
index 00000000..260c66a1
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/field-vs-energy.txt
@@ -0,0 +1,20 @@
+# This is a comment
+
+loadPath ./
+
+load YBCO-40nm-T5K-FC150mT-Escan.db
+load YBCO-40nm-T30K-FC150mT-Escan.db
+load YBCO-40nm-T60K-FC150mT-Escan.db
+load YBCO-40nm-T120K-FC150mT-Escan.db
+
+selectAll
+
+x dataE
+y Field
+
+savePath ./
+plot FieldVsEnergy.pdf
+
+macro FieldVsEnergy.C
+
+# end
diff --git a/src/musredit_qt6/mupp/examples/field-vs-temp.txt b/src/musredit_qt6/mupp/examples/field-vs-temp.txt
new file mode 100644
index 00000000..44cd728d
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/field-vs-temp.txt
@@ -0,0 +1,19 @@
+# This is a comment
+
+loadPath ./
+
+load YBCO-40nm-FC-E3p8keV-B10mT-Tscan.db
+load YBCO-40nm-FC-E3p8keV-B150mT-Tscan.db
+
+selectAll
+
+norm
+x dataT
+y Field
+
+savePath ./
+plot FieldVsTemp.pdf
+
+macro FieldVsTemp.C
+
+# end
diff --git a/src/musredit_qt6/mupp/examples/sigma-vs-temp.txt b/src/musredit_qt6/mupp/examples/sigma-vs-temp.txt
new file mode 100644
index 00000000..3c74bcc5
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/sigma-vs-temp.txt
@@ -0,0 +1,18 @@
+# This is a comment
+
+loadPath ./
+
+load YBCO-40nm-FC-E3p8keV-B10mT-Tscan.db
+load YBCO-40nm-FC-E3p8keV-B150mT-Tscan.db
+
+selectAll
+
+x dataT
+y Sigma
+
+savePath ./
+plot SigmaVsTemp.pdf
+
+macro SigmaVsTemp.C
+
+# end
diff --git a/src/musredit_qt6/mupp/examples/sigmaSC-vs-temp.txt b/src/musredit_qt6/mupp/examples/sigmaSC-vs-temp.txt
new file mode 100644
index 00000000..5a965180
--- /dev/null
+++ b/src/musredit_qt6/mupp/examples/sigmaSC-vs-temp.txt
@@ -0,0 +1,35 @@
+# This is a comment
+# Script: sigmaSC-vs-temp.txt
+
+loadPath ./
+
+load YBCO-40nm-FC-E3p8keV-B10mT-Tscan.db  # collection 0
+load YBCO-40nm-FC-E3p8keV-B150mT-Tscan.db # collection 1
+
+# B=10mT
+var SigmaSC_10 = pow(abs(pow($Sigma,2.0)-pow(0.11,2.0)), 0.5) # 0.11 (1/us) is the nuclear contribution (T>Tc)
+var SigmaSC_10Err = pow(pow($Sigma*$SigmaErr,2.0)+pow(0.11*0.0025,2.0), 0.5)/$SigmaSC_10
+# B=150mT
+var SigmaSC_150 = pow(abs(pow($Sigma,2.0)-pow(0.075,2.0)), 0.5) # 0.075 (1/us) is the nuclear contribution (T>Tc)
+var SigmaSC_150Err = pow(pow($Sigma*$SigmaErr,2.0)+pow(0.075*0.0025,2.0), 0.5)/$SigmaSC_150
+
+# link variables to collections
+col 0 : SigmaSC_10    # error variable SigmaSC_10Err doesn't need to be given, it is automatically linked to SigmaSC_10
+col 1 : SigmaSC_150
+
+norm
+
+select 0
+x dataT
+y SigmaSC_10
+
+select 1
+x dataT
+y SigmaSC_150
+
+savePath ./
+plot SigmaSCVsTemp.pdf
+
+macro SigmaSCVsTemp.C
+
+# end
diff --git a/src/musredit_qt6/mupp/icons/document-open-dark.svg b/src/musredit_qt6/mupp/icons/document-open-dark.svg
new file mode 100644
index 00000000..ef9cbb30
--- /dev/null
+++ b/src/musredit_qt6/mupp/icons/document-open-dark.svg
@@ -0,0 +1,14 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 22 22">
+  <defs id="defs3051">
+    <style type="text/css" id="current-color-scheme">
+      .ColorScheme-Text {
+        color:#f2f2f2;
+      }
+      </style>
+  </defs>
+ <path 
+    style="fill:currentColor;fill-opacity:1;stroke:none" 
+	d="m3 3v1 15h1 15v-1-13h-6.992188l-2-2-.007812.007813v-.007813h-6-1m6.00781 5h8.992188v10h-14v-8h3v-.007813l.007813.007813 2-2"
+    class="ColorScheme-Text"
+    />
+</svg>
diff --git a/src/musredit_qt6/mupp/icons/document-open-plain.svg b/src/musredit_qt6/mupp/icons/document-open-plain.svg
new file mode 100644
index 00000000..bcd7478d
--- /dev/null
+++ b/src/musredit_qt6/mupp/icons/document-open-plain.svg
@@ -0,0 +1,75 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   viewBox="0 0 22 22"
+   version="1.1"
+   id="svg2"
+   height="22"
+   width="22">
+  <defs
+     id="defs4">
+    <style
+       id="current-color-scheme"
+       type="text/css">
+      .ColorScheme-Text {
+        color:#4d4d4d;
+      }
+      .ColorScheme-Background {
+        color:#eff0f1;
+      }
+      .ColorScheme-Highlight {
+        color:#3daee9;
+      }
+      .ColorScheme-ViewText {
+        color:#31363b;
+      }
+      .ColorScheme-ViewBackground {
+        color:#fcfcfc;
+      }
+      .ColorScheme-ViewHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ViewFocus{
+        color:#3daee9;
+      }
+      .ColorScheme-ButtonText {
+        color:#31363b;
+      }
+      .ColorScheme-ButtonBackground {
+        color:#eff0f1;
+      }
+      .ColorScheme-ButtonHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ButtonFocus{
+        color:#3daee9;
+      }
+      </style>
+  </defs>
+  <metadata
+     id="metadata7">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(0,-1030.3622)"
+     id="layer1">
+    <path
+       class="ColorScheme-Text"
+       id="rect4069"
+       transform="translate(0,1030.3622)"
+       d="M 3 3 L 3 4 L 3 19 L 4 19 L 19 19 L 19 18 L 19 5 L 12.007812 5 L 10.007812 3 L 10 3.0078125 L 10 3 L 4 3 L 3 3 z M 9.0078125 8 L 18 8 L 18 18 L 4 18 L 4 10 L 7 10 L 7 9.9921875 L 7.0078125 10 L 9.0078125 8 z "
+       style="fill:currentColor;fill-opacity:1;stroke:none" />
+  </g>
+</svg>
diff --git a/src/musredit_qt6/mupp/icons/mupp-dark.svg b/src/musredit_qt6/mupp/icons/mupp-dark.svg
new file mode 100644
index 00000000..b6e3033a
--- /dev/null
+++ b/src/musredit_qt6/mupp/icons/mupp-dark.svg
@@ -0,0 +1,199 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
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+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
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diff --git a/src/musredit_qt6/mupp/icons/mupp-plain.svg b/src/musredit_qt6/mupp/icons/mupp-plain.svg
new file mode 100644
index 00000000..eb0b1186
--- /dev/null
+++ b/src/musredit_qt6/mupp/icons/mupp-plain.svg
@@ -0,0 +1,199 @@
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+
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+   xmlns:dc="http://purl.org/dc/elements/1.1/"
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+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
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+   version="1.1"
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diff --git a/src/musredit_qt6/mupp/mupp.cpp b/src/musredit_qt6/mupp/mupp.cpp
new file mode 100644
index 00000000..d2f7c024
--- /dev/null
+++ b/src/musredit_qt6/mupp/mupp.cpp
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+/***************************************************************************
+
+  mupp.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <iostream>
+
+#include <QObject>
+#include <QScopedPointer>
+#include <QApplication>
+#include <QCoreApplication>
+#include <QFile>
+#include <QString>
+#include <QStringList>
+#include <QVector>
+#include <QTextStream>
+#include <QTimer>
+
+#include "mupp_version.h"
+#include "PmuppScript.h"
+#include "PmuppGui.h"
+
+//------------------------------------------------------------------------
+/**
+ * <p>mupp script help.
+ */
+void mupp_script_syntax()
+{
+  std::cout << std::endl;
+  std::cout << "SCRIPT COMMANDS:" << std::endl;
+  std::cout << "   Lines starting with '#', '%', or '//' are comments and will be ignored." << std::endl;
+  std::cout << "   The same is true for empty lines. Comments are also allowed at the end" << std::endl;
+  std::cout << "   for a command, i.e. loadPath ./ # the best place ever." << std::endl;
+  std::cout << std::endl;
+  std::cout << "   load <coll>     : load a collection. <coll> is the filename of the" << std::endl;
+  std::cout << "                     collection (*.db, *.dat)" << std::endl;
+  std::cout << "   loadPath <path> : set the load path to <path>; accepting bash variables" << std::endl;
+  std::cout << "                     like $HOME, etc." << std::endl;
+  std::cout << "   x <var-name>    : set a x-axis variable. <var-name> is a data tag of" << std::endl;
+  std::cout << "                     the db/dat-file." << std::endl;
+  std::cout << "   y <var-name>    : set a y-axis variable. <var-name> is a data tag of" << std::endl;
+  std::cout << "                     the db/dat-file." << std::endl;
+  std::cout << "   select <nn>     : select collection <nn>, where <nn> is the row-number" << std::endl;
+  std::cout << "                     or the name of the collection to be selected." << std::endl;
+  std::cout << "   selectAll       : i.e. already set addX, addY will apply to ALL collections" << std::endl;
+  std::cout << "                     present." << std::endl;
+  std::cout << "   savePath <path> : sets the save path to <path>; accepting bash variables" << std::endl;
+  std::cout << "                     like $HOME, etc." << std::endl;
+  std::cout << "   plot <fln>      : where <fln> is the file name with extension under which" << std::endl;
+  std::cout << "                     the plot should be saved." << std::endl;
+  std::cout << "   macro <fln>     : where <fln> is the file name under which the root macro" << std::endl;
+  std::cout << "                     should be saved." << std::endl;
+  std::cout << "   var <var_name> = <expr> : defines a variable." << std::endl;
+  std::cout << "                             <expr> is a mathematical expression where" << std::endl;
+  std::cout << "                             collection variables are addressed via the '$'," << std::endl;
+  std::cout << "                             e.g. dataT is addressed by $dataT, etc." << std::endl;
+  std::cout << "   col <nn> : <var_name>   : links <var_name> to the collection <nn>, where" << std::endl;
+  std::cout << "                             <nn> is the number of the collection as defined" << std::endl;
+  std::cout << "                             by the order of load, starting with 0." << std::endl;
+  std::cout << std::endl;
+}
+
+//------------------------------------------------------------------------
+/**
+ * <p>mupp syntax help.
+ */
+void mupp_syntax()
+{
+  std::cout << std::endl;
+  std::cout << "usage: mupp [OPTIONS] [[--path <fit-param-path>] <fit-param-file-names>]" << std::endl;
+  std::cout << std::endl;
+  std::cout << "OPTIONS:" << std::endl;
+  std::cout << "  -h, --help: this help" << std::endl;
+  std::cout << "  -v, --version: current mupp version" << std::endl;
+  std::cout << "  -s <fln>, --script <fln>: <fln> being a mupp script." << std::endl;
+  std::cout << "  --path <fit-param-path>: path where to look for the <fit-param-file-names>" << std::endl;
+  std::cout << "  <fit-param-file-names>: list of file name(s) to be loaded." << std::endl;
+  std::cout << "     allowed formats are: db, dat, msr" << std::endl << std::endl;
+  mupp_script_syntax();
+}
+
+//------------------------------------------------------------------------
+/**
+ * <p>Reads a mupp script and feeds its content to list.
+ *
+ * @param fln mupp script file name
+ * @param list content of the mupp script
+ *
+ * @return 0 if success, otherwise -1
+ */
+int mupp_script_read(const char *fln, QStringList &list)
+{
+  QFile file(fln);
+  if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+    std::cerr << std::endl;
+    std::cerr << "*********" << std::endl;
+    std::cerr << "**ERROR** couldn't open '" << fln << "'." << std::endl;
+    std::cerr << "*********" << std::endl;
+    return -1;
+  }
+
+  QTextStream fin(&file);
+  QString line;
+  int pos;
+  while (!fin.atEnd()) {
+    line = fin.readLine();
+    line = line.simplified();
+    if (line.isEmpty())
+      continue;
+    if (line.startsWith("#") || line.startsWith("%") || line.startsWith("//"))
+      continue;
+    // remove all potentially present trailing comments
+    pos = line.indexOf("#");
+    if (pos != -1)
+      line.remove(pos, line.length()-pos);
+    pos = line.indexOf("%");
+    if (pos != -1)
+      line.remove(pos, line.length()-pos);
+    pos = line.indexOf("//");
+    if (pos != -1)
+      line.remove(pos, line.length()-pos);
+    line = line.simplified();
+    // feed script list
+    list << line;
+  }
+
+  return 0;
+}
+
+//------------------------------------------------------------------------
+/**
+ * <p>check if a bash environment variable exists.
+ *
+ * @param str name of bash variable to be checked.
+ *
+ * @return true if the bash variable exists, false otherwise.
+ */
+bool mupp_bash_variable_exists(const QString str)
+{
+  QString var = str;
+  var.remove("$");
+
+  QProcessEnvironment procEnv = QProcessEnvironment::systemEnvironment();
+  QString varExpanded = procEnv.value(var, "");
+  if (!varExpanded.isEmpty())
+    return true;
+
+  return false;
+}
+
+//------------------------------------------------------------------------
+/**
+ * <p>checks the mupp script syntax.
+ *
+ * @param list mupp script content.
+ *
+ * @return 0 on success, negative numbers otherwise.
+ */
+int mupp_script_syntax_check(QStringList &list)
+{
+  QString str;
+  QStringList tok;
+  QVector<QString> var_names;
+  QVector<bool> var_linked;
+  int noOfCollections = 0;
+  for (int i=0; i<list.size(); i++) {
+    tok.clear();
+    str = list.at(i);
+    if (str.startsWith("loadPath")) {
+      tok = str.split(' ', Qt::SkipEmptyParts);
+      if (tok.size() < 2) {
+        std::cerr << std::endl;
+        std::cerr << "****************" << std::endl;
+        std::cerr << "**SYNTAX ERROR** found '" << str.toLatin1().constData() << "'. <path> is missing." << std::endl;
+        std::cerr << "****************" << std::endl;
+        return -1;
+      }
+      tok.clear();
+
+      // check if bash variables are present, and if yes try to resolve them making sure they or NOT empty.
+      str = str.remove("loadPath ");
+      tok = str.split('/');
+      for (int i=0; i<tok.size(); i++) {
+        if (tok.at(i).startsWith("$")) {
+          if (!mupp_bash_variable_exists(tok.at(i))) {
+            std::cerr << std::endl;
+            std::cerr << "****************" << std::endl;
+            std::cerr << "**SYNTAX ERROR** found in command '" << list.at(i).toLatin1().constData() << "' an empty bash variable '" << tok.at(i).toLatin1().constData() << "'." << std::endl;
+            std::cerr << "****************" << std::endl;
+            return -2;
+          }
+        }
+      }
+    } else if (str.startsWith("load")) {
+      tok = str.split(' ', Qt::SkipEmptyParts);
+      if (tok.size() < 2) {
+        std::cerr << std::endl;
+        std::cerr << "****************" << std::endl;
+        std::cerr << "**SYNTAX ERROR** found '" << str.toLatin1().constData() << "'. At least one collection file name is expected." << std::endl;
+        std::cerr << "****************" << std::endl;
+        return -1;
+      }
+      noOfCollections++;
+    } else if (str.startsWith("x")) {
+      tok = str.split(' ', Qt::SkipEmptyParts);
+      if (tok.size() != 2) {
+        std::cerr << std::endl;
+        std::cerr << "****************" << std::endl;
+        std::cerr << "**SYNTAX ERROR** found '" << str.toLatin1().constData() << "'. Only one variable name is accepted." << std::endl;
+        std::cerr << "****************" << std::endl;
+        return -1;
+      }
+    } else if (str.startsWith("y")) {
+      tok = str.split(' ', Qt::SkipEmptyParts);
+      if (tok.size() < 2) {
+        std::cerr << std::endl;
+        std::cerr << "****************" << std::endl;
+        std::cerr << "**SYNTAX ERROR** found '" << str.toLatin1().constData() << "'. At least one variable name is needed." << std::endl;
+        std::cerr << "****************" << std::endl;
+        return -1;
+      }
+    } else if (str.startsWith("select ")) {
+      tok = str.split(' ', Qt::SkipEmptyParts);
+      if (tok.size() != 2) {
+        std::cerr << std::endl;
+        std::cerr << "****************" << std::endl;
+        std::cerr << "**SYNTAX ERROR** found '" << str.toLatin1().constData() << "'. Only one row-number of collection name is accepted." << std::endl;
+        std::cerr << "****************" << std::endl;
+        return -1;
+      }
+    } else if (str.startsWith("selectAll")) {
+      if (str.compare("selectAll")) {
+        std::cerr << std::endl;
+        std::cerr << "****************" << std::endl;
+        std::cerr << "**SYNTAX ERROR** found '" << str.toLatin1().constData() << "'. selectAll doesn't accept any options." << std::endl;
+        std::cerr << "****************" << std::endl;
+        return -1;
+      }
+    } else if (str.startsWith("savePath")) {
+      tok = str.split(' ', Qt::SkipEmptyParts);
+      if (tok.size() != 2) {
+        std::cerr << std::endl;
+        std::cerr << "****************" << std::endl;
+        std::cerr << "**SYNTAX ERROR** found '" << str.toLatin1().constData() << "'. Only one save path is accepted." << std::endl;
+        std::cerr << "****************" << std::endl;
+        return -1;
+      }
+    } else if (str.startsWith("plot")) {
+      tok = str.split(' ', Qt::SkipEmptyParts);
+      if (tok.size() != 2) {
+        std::cerr << std::endl;
+        std::cerr << "****************" << std::endl;
+        std::cerr << "**SYNTAX ERROR** found '" << str.toLatin1().constData() << "'. Only one file name is accepted." << std::endl;
+        std::cerr << "****************" << std::endl;
+        return -1;
+      }
+      // check extension
+      tok.clear();
+      tok = str.split('.', Qt::SkipEmptyParts);
+      QString ext = tok.at(tok.size()-1);
+      ext = ext.toLower();
+      if ((ext != "pdf") && (ext != "jpg") && (ext != "png") && (ext != "svg") && (ext != "gif")) {
+        std::cerr << std::endl;
+        std::cerr << "****************" << std::endl;
+        std::cerr << "**SYNTAX ERROR** found extension " << ext.toLatin1().constData() << " in '" << str.toLatin1().constData() << "' which is not supported." << std::endl;
+        std::cerr << "   Currently only: pdf, jpg, png, svg, and gif are supported." << std::endl;
+        std::cerr << "****************" << std::endl;
+        return -2;
+      }
+    } else if (str.startsWith("macro")) {
+      tok = str.split(' ', Qt::SkipEmptyParts);
+      if (tok.size() != 2) {
+        std::cerr << std::endl;
+        std::cerr << "****************" << std::endl;
+        std::cerr << "**SYNTAX ERROR** found '" << str.toLatin1().constData() << "'. Only one file name is accepted." << std::endl;
+        std::cerr << "****************" << std::endl;
+        return -1;
+      }
+      // check extension
+      tok.clear();
+      tok = str.split('.', Qt::SkipEmptyParts);
+      QString ext = tok.at(tok.size()-1);
+      ext = ext.toLower();
+      if (ext != "c") {
+        std::cerr << std::endl;
+        std::cerr << "****************" << std::endl;
+        std::cerr << "**SYNTAX ERROR** found extension " << ext.toLatin1().constData() << " in '" << str.toLatin1().constData() << "' which is not supported." << std::endl;
+        std::cerr << "   Currently only: C are supported." << std::endl;
+        std::cerr << "****************" << std::endl;
+        return -2;
+      }
+    } else if (str.startsWith("norm")) {
+      // nothing-to-be-done
+    } else if (str.startsWith("var")) {
+      tok.clear();
+      tok = str.split(' ', Qt::SkipEmptyParts);
+      if (tok.size() < 2) {
+        std::cerr << std::endl;
+        std::cerr << "****************" << std::endl;
+        std::cerr << "**SYNTAX ERROR** found '" << str.toLatin1().constData() << "'." << std::endl;
+        std::cerr << "   Illegal variable definition." << std::endl;
+        std::cerr << "****************" << std::endl;
+        return -1;
+      }
+      // keep var name for later use
+      var_names.push_back(tok[1]);
+      var_linked.push_back(false);
+      // the parsing etc is dealt within the scripting class
+    } else if (str.startsWith("col")) {
+      tok.clear();
+      tok = str.split(' ', Qt::SkipEmptyParts);
+      if (tok.size() != 4) {
+        std::cerr << std::endl;
+        std::cerr << "****************" << std::endl;
+        std::cerr << "**SYNTAX ERROR** found '" << str.toLatin1().constData() << "'. Syntax for variable collection linking is:" << std::endl;
+        std::cerr << "   col <nn> : <var_name>. Where <nn> is the collection index, and <var_name> the variable name to be linked." << std::endl;
+        std::cerr << "****************" << std::endl;
+        return -1;
+      }
+      if (tok[2] != ":") {
+        std::cerr << std::endl;
+        std::cerr << "****************" << std::endl;
+        std::cerr << "**SYNTAX ERROR** found '" << str.toLatin1().constData() << "'. Syntax for variable collection linking is:" << std::endl;
+        std::cerr << "   col <nn> : <var_name>. Where <nn> is the collection index, and <var_name> the variable name to be linked." << std::endl;
+        std::cerr << "****************" << std::endl;
+        return -2;
+      }
+      // will check that the to be linked variable and the target collection exists
+      // first check that the collection exists
+      bool ok;
+      int idx = tok[1].toInt(&ok);
+      if (!ok) {
+        std::cerr << std::endl;
+        std::cerr << "****************" << std::endl;
+        std::cerr << "**SYNTAX ERROR** found '" << str.toLatin1().constData() << "'. Syntax for variable collection linking is:" << std::endl;
+        std::cerr << "   col <nn> : <var_name>. Where <nn> is the collection index, and <var_name> the variable name to be linked." << std::endl;
+        std::cerr << "   collection index is not a number here!" << std::endl;
+        std::cerr << "****************" << std::endl;
+        return -2;
+      }
+      if (idx >= noOfCollections) {
+        std::cerr << std::endl;
+        std::cerr << "****************" << std::endl;
+        std::cerr << "**SYNTAX ERROR** in '" << str.toLatin1().constData() << "'." << std::endl;
+        std::cerr << "   Requested collection '" << idx << "' is out-of-range." << std::endl;
+        std::cerr << "   Only " << noOfCollections << " or present." << std::endl;
+        std::cerr << "   Collection indexing starts at 0, not 1." << std::endl;
+        std::cerr << "****************" << std::endl;
+        return -3;
+      }
+      // make sure that the variable to be linked has been defined and is NOT an error variable.
+      if (tok[3].endsWith("Err")) {
+        std::cerr << std::endl;
+        std::cerr << "****************" << std::endl;
+        std::cerr << "**SYNTAX ERROR** in '" << str.toLatin1().constData() << "'." << std::endl;
+        std::cerr << "  Only variables can be linked, NOT error variables." << std::endl;
+        std::cerr << "  Error variables are linked implicitly." << std::endl;
+        std::cerr << "****************" << std::endl;
+        return -4;
+      }
+      idx = -1;
+      for (unsigned int i=0; i<var_names.size(); i++) {
+        if (tok[3] == var_names[i]) {
+          idx = i;
+          break;
+        }
+      }
+      if (idx == -1) {
+        std::cerr << std::endl;
+        std::cerr << "****************" << std::endl;
+        std::cerr << "**SYNTAX ERROR** in '" << str.toLatin1().constData() << "'." << std::endl;
+        std::cerr << "  Variable to be linked not defined yet." << std::endl;
+        std::cerr << "****************" << std::endl;
+        return -5;
+      }
+      var_linked[idx] = true;
+    } else {
+      std::cerr << "*********" << std::endl;
+      std::cerr << "**ERROR** found unrecognized script command: '" << str.toLatin1().constData() << "'." << std::endl;
+      std::cerr << "*********" << std::endl;
+      mupp_script_syntax();
+      return -3;
+    }
+  }
+  if (noOfCollections == -1) {
+    std::cerr << "****************" << std::endl;
+    std::cerr << "**SYNTAX ERROR** no data loaded." << std::endl;
+    std::cerr << "****************" << std::endl;
+    mupp_script_syntax();
+    return -4;
+  }
+  if (var_names.size() != var_linked.size()) {
+    std::cerr << "****************" << std::endl;
+    std::cerr << "**SYNTAX ERROR**" << std::endl;
+    std::cerr << "****************" << std::endl;
+    std::cerr << "** Your never should have reached this point **" << std::endl;
+    std::cerr << "****************" << std::endl;
+    return -4;
+  }
+  for (int i=0; i<var_names.size(); i++) {
+    if (!var_names[i].endsWith("Err") && !var_linked[i]) {
+      std::cerr << "****************" << std::endl;
+      std::cerr << "**  WARNING   **" << std::endl;
+      std::cerr << "****************" << std::endl;
+      std::cerr << "  Found unlinked variable : " << var_names[i].toLatin1().constData() << std::endl;
+      std::cerr << "****************" << std::endl;
+    }
+  }
+
+  return 0;
+}
+
+//------------------------------------------------------------------------
+/**
+ * <p>Depending on whether a script or gui application is wished, select
+ * the proper Qt application class.
+ *
+ * @param argc
+ * @param argv
+ * @param gui if true, the gui is wanted, otherwise the script is called.
+ *
+ * @return the request qt application
+ */
+QCoreApplication* createApplication(int &argc, char *argv[], bool gui)
+{
+  if (gui)
+    return new QApplication(argc, argv);
+  else
+    return new QCoreApplication(argc, argv);
+}
+
+//------------------------------------------------------------------------
+/**
+ * <p>Main mupp application. mupp stands for muon parameter plotter. It allows
+ * to plot the parameters of db- or dat-files. The typical use case is e.g.
+ * plotting parameters of muSR fits as function of temperature, pressure,
+ * energy, etc.
+ *
+ * @param argc
+ * @param argv
+ *
+ * @return return value of the Qt application
+ */
+int main(int argc, char *argv[])
+{
+  Q_INIT_RESOURCE(mupp);
+
+  QStringList fln;
+  QStringList script;
+
+  if (argc > 1) {
+    if (!qstrcmp(argv[1], "-h") || !qstrcmp(argv[1], "--help")) {
+      mupp_syntax();
+      return 0;
+    } else if (!qstrcmp(argv[1], "-v") || !qstrcmp(argv[1], "--version")) {
+      std::cout << std::endl << "mupp version: " << MUPP_VERSION << ", git-branch: " << GIT_BRANCH << ", git-rev: " << GIT_COMMIT_HASH << std::endl << std::endl;
+      return 0;
+    } else if (!qstrcmp(argv[1], "-s") || !qstrcmp(argv[1], "--script")) {
+      if (argc != 3) {
+        std::cerr << std::endl;
+        std::cerr << "*********" << std::endl;
+        std::cerr << "**ERROR** the script option cannot be combined with something else." << std::endl;
+        std::cerr << "*********" << std::endl;
+        mupp_syntax();
+        return -1;
+      }
+      // make sure that the script file exists
+      if (!QFile::exists(argv[2])) {
+        std::cerr << std::endl;
+        std::cerr << "*********" << std::endl;
+        std::cerr << "**ERROR** the script file '" << argv[2] << "' doesn't exist." << std::endl;
+        std::cerr << "*********" << std::endl << std::endl;
+        return -1;
+      }
+
+      // read script file
+      if (mupp_script_read(argv[2], script) != 0) {
+        std::cerr << std::endl;
+        std::cerr << "*********" << std::endl;
+        std::cerr << "**ERROR** couldn't read script '" << argv[2] << "'" << std::endl;
+        std::cerr << "*********" << std::endl;
+        return -1;
+      }
+
+      // check syntax of the script
+      if (mupp_script_syntax_check(script) != 0) {
+        return -1;
+      }
+    } else if (argc >= 2) { // assume it should be a fit-param-file-name list
+      // check if a path is given
+      int start=1;
+      QString path="";
+      if (!qstrcmp(argv[1], "--path")) {
+        if (argc < 4) {
+          std::cerr << std::endl;
+          std::cerr << "*********" << std::endl;
+          std::cerr << "**ERROR** tag '--path' needs to be followed by a <fit-param-path> and at least one <fit-param-file-name>" << std::endl;
+          std::cerr << "*********" << std::endl;
+          mupp_syntax();
+          return -1;
+        }
+        path = argv[2];
+        start = 3;
+      }
+      for (int i=start; i<argc; i++) {
+        fln.push_back(argv[i]);
+      }
+      if (!path.isEmpty()) {
+        for (int i=0; i<fln.size(); i++) {
+          fln[i].prepend(path+"/");
+        }
+      }
+    }
+  }
+
+  bool guiFlag=true;
+  if (script.size() > 0) { // script
+    guiFlag = false;
+  }
+  QCoreApplication *app = createApplication(argc, argv, guiFlag);
+
+  if (qobject_cast<QApplication *>(app)) { // GUI
+    PmuppGui *gui = new PmuppGui(fln);
+    gui->setWindowTitle( "muSR Parameter Plotter" );
+    gui->resize( 800, 500 );
+    gui->show();
+
+    app->connect( app, SIGNAL( lastWindowClosed() ), app, SLOT( quit() ) );
+    app->connect( app, SIGNAL( aboutToQuit() ), gui, SLOT( aboutToQuit() ) );
+  } else { // scripting
+    PmuppScript *mupp_script = new PmuppScript(script);
+    if (mupp_script == 0) {
+      std::cerr << std::endl;
+      std::cerr << "*********" << std::endl;
+      std::cerr << "**ERROR** couldn't invoke script class..." << std::endl;
+      std::cerr << "*********" << std::endl;
+      return -1;
+    }
+
+    // This will cause the application to exit when the task signals finished.
+    QObject::connect( mupp_script, SIGNAL( finished() ), app, SLOT( quit() ) );
+
+    // This will run the task from the application event loop.
+    QTimer::singleShot(0, mupp_script, SLOT( executeScript() ) );
+  }
+
+  return app->exec();
+}
diff --git a/src/musredit_qt6/mupp/mupp.dox b/src/musredit_qt6/mupp/mupp.dox
new file mode 100644
index 00000000..0e6f6970
--- /dev/null
+++ b/src/musredit_qt6/mupp/mupp.dox
@@ -0,0 +1,19 @@
+/*********************************************************************************************
+
+  name:       mupp.dox
+
+  created by: Andreas Suter, 2020/05/19
+
+  content:    Description of mupp
+
+**********************************************************************************************/
+
+/**
+
+\mainpage mupp - muon parameter plotter
+
+<p>mupp allows to quickly plot parameters found in db-/dat-files. db-/dat-files are typically generated by msr2data from msr-files after fitting. A db-/dat-file is a collection of fitting parameters from a collection of muSR measurements. For instance a db-/dat-file collects a full temperature scan, a field scan, an energy scan, etc.
+
+<p>mupp allows to load these collections, select parameters in a x/y fashion and allows to plot it. It furthermore allows to create new variables which are mathematical transformations of the parameter vectors of a collection.
+
+*/
diff --git a/src/musredit_qt6/mupp/mupp.h b/src/musredit_qt6/mupp/mupp.h
new file mode 100644
index 00000000..b7f0e2b4
--- /dev/null
+++ b/src/musredit_qt6/mupp/mupp.h
@@ -0,0 +1,47 @@
+/***************************************************************************
+
+  mupp.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _MUPP_H_
+#define _MUPP_H_
+
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/msg.h>
+#include <sys/stat.h>
+
+#define MAX_RECENT_FILES 5
+
+#define PMUPP_MAX_MTEXT 512
+
+struct mbuf {
+  long mtype;                  // message type
+  char mtext[PMUPP_MAX_MTEXT]; // message body
+};
+
+#endif // _MUPP_H_
diff --git a/src/musredit_qt6/mupp/mupp.qrc b/src/musredit_qt6/mupp/mupp.qrc
new file mode 100644
index 00000000..8390e2e1
--- /dev/null
+++ b/src/musredit_qt6/mupp/mupp.qrc
@@ -0,0 +1,13 @@
+<RCC>
+  <qresource prefix="/">
+    <file>icons/mupp-plain.svg</file>
+    <file>icons/mupp-dark.svg</file>
+    <file>icons/document-open-plain.svg</file>
+    <file>icons/document-open-dark.svg</file>
+    <file>icons/varEdit-plain.svg</file>
+    <file>icons/varEdit-dark.svg</file>
+    <file>icons/mupp.icns</file>
+    <file>mupp_startup.xml.in</file>
+  </qresource>
+</RCC>
+
diff --git a/src/musredit_qt6/mupp/mupp_startup.xml.in b/src/musredit_qt6/mupp/mupp_startup.xml.in
new file mode 100644
index 00000000..f7e218c3
--- /dev/null
+++ b/src/musredit_qt6/mupp/mupp_startup.xml.in
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<mupp xmlns="http://lmu.web.psi.ch/musrfit/user/MUSR/WebHome.html">
+    <comment>
+        Defines default settings for the mupp helper program for musrfit
+    </comment>
+    <recent_files>
+    </recent_files>
+    <dark_theme>no</dark_theme>
+    <root_settings>
+        <marker_list>
+            <!-- Root marker numbers -->
+            <marker>20,1.3</marker> <!-- full circle -->            
+            <marker>21,1.3</marker> <!-- full square -->
+            <marker>22,1.5</marker> <!-- full triangle -->
+            <marker>23,1.5</marker> <!-- full triangle down -->
+            <marker>34,1.3</marker> <!-- full cross -->
+            <marker>47,1.3</marker> <!-- full cross at 45° -->
+            <marker>24,1.3</marker> <!-- open circle -->
+            <marker>25,1.3</marker> <!-- open square -->
+            <marker>26,1.5</marker> <!-- open triangle -->
+            <marker>27,1.5</marker> <!-- open diamond -->
+            <marker>28,1.5</marker> <!-- open cross -->
+            <marker>29,1.5</marker> <!-- full star -->
+            <marker>30,1.5</marker> <!-- open star -->
+            <marker>2,1.5</marker>  <!-- thin cross -->
+            <marker>3,1.5</marker>  <!-- thin star -->
+            <marker>5,1.5</marker>  <!-- thin x -->
+        </marker_list>
+        <color_list>
+            <!-- Color as RGB coded string -->
+            <color>0,0,0,kBlack</color>
+            <color>255,0,0,kRed</color>
+            <color>0,0,255,kBlue</color>
+            <color>0,255,0,kGreen</color>
+            <color>255,0,255,kMagenta</color>
+            <color>0,255,255,kCyan</color>
+            <color>153,0,255,kViolet-3</color>
+            <color>102,102,51,kYellow-1</color>
+            <color>51,102,51,kGreen-1,</color>
+            <color>153,0,0,kRed+2</color>    
+        </color_list>
+    </root_settings>
+</mupp>
diff --git a/src/musredit_qt6/mupp/plotter/CMakeLists.txt b/src/musredit_qt6/mupp/plotter/CMakeLists.txt
new file mode 100644
index 00000000..c0b83035
--- /dev/null
+++ b/src/musredit_qt6/mupp/plotter/CMakeLists.txt
@@ -0,0 +1,99 @@
+#--- mupp_plotter -------------------------------------------------------------
+message("-- Handle the plotter part of mupp")
+
+#--- instruct cmake NOT to run moc automatically when needed anymore ----------
+set(CMAKE_AUTOMOC OFF)
+
+#--- headers ------------------------------------------------------------------
+set(HEADER
+  mupp_plot.h
+  PMuppCanvas.h
+  PMuppCanvasLinkDef.h
+  PMuppStartupHandler.h
+  PMuppStartupHandlerLinkDef.h
+)
+
+#--- sources ------------------------------------------------------------------
+set(SOURCE
+  mupp_plot.cpp
+  PMuppCanvas.cpp 
+  PMuppStartupHandler.cpp 
+)
+
+#--- dictionary generated sources ---------------------------------------------
+set ( PLOT_DIR
+  ${CMAKE_CURRENT_BINARY_DIR}
+)
+# ROOT requires that the dictonary header files are found at configuration time.
+# Hence, target_include_directories cannot be used here because, targets are 
+# setup only afterwards.
+include_directories(${PLOT_DIR})
+
+#--- generate necessary dictionaries ------------------------------------------
+root_generate_dictionary(
+  PMuppCanvasDict 
+  PMuppCanvas.h
+  OPTIONS 
+    -I${CMAKE_CURRENT_SOURCE_DIR}
+    -I${CMAKE_CURRENT_SOURCE_DIR}/..
+    -inlineInputHeader
+  LINKDEF PMuppCanvasLinkDef.h
+  MODULE PMuppCanvas
+)
+root_generate_dictionary(
+  PMuppStartupHandlerDict 
+  PMuppStartupHandler.h
+  OPTIONS 
+    -I${CMAKE_CURRENT_SOURCE_DIR}
+    -I${CMAKE_CURRENT_SOURCE_DIR}/..
+    -inlineInputHeader
+  LINKDEF PMuppStartupHandlerLinkDef.h
+  MODULE PMuppStartupHandler
+)
+
+#--- define all the dictonary cxx ---------------------------------------------
+set(DICT
+  ${PLOT_DIR}/PMuppCanvasDict.cxx
+  ${PLOT_DIR}/PMuppStartupHandlerDict.cxx
+)
+
+#--- define executable --------------------------------------------------------
+add_executable(mupp_plot ${SOURCE} ${DICT})
+
+#--- add all needed include directories ---------------------------------------
+target_include_directories(mupp_plot
+  PRIVATE
+    ${ROOT_INCLUDE_DIRS}
+    ${CMAKE_CURRENT_BINARY_DIR}
+    ${CMAKE_CURRENT_BINARY_DIR}/..
+    ${CMAKE_CURRENT_SOURCE_DIR}
+    ${CMAKE_CURRENT_SOURCE_DIR}/..
+)
+
+#--- define all to be linked libs ---------------------------------------------
+target_link_libraries(mupp_plot ${ROOT_LIBRARIES})
+
+#--- install ------------------------------------------------------------------
+if (APPLE)
+  install(TARGETS mupp_plot DESTINATION /Applications/mupp.app/Contents/MacOS)
+else (APPLE)
+  install(TARGETS mupp_plot DESTINATION bin)
+endif (APPLE)
+
+#--- install root pcm's and rootmaps ------------------------------------------
+install(
+  FILES ${CMAKE_CURRENT_BINARY_DIR}/libPMuppCanvas_rdict.pcm
+        ${CMAKE_CURRENT_BINARY_DIR}/libPMuppCanvas.rootmap
+        ${CMAKE_CURRENT_BINARY_DIR}/libPMuppStartupHandler_rdict.pcm
+        ${CMAKE_CURRENT_BINARY_DIR}/libPMuppStartupHandler.rootmap
+  DESTINATION lib
+)
+
+#--- install headers ----------------------------------------------------------
+install(
+  FILES ${CMAKE_CURRENT_SOURCE_DIR}/../mupp.h
+        ${CMAKE_CURRENT_SOURCE_DIR}/mupp_plot.h
+        ${CMAKE_CURRENT_SOURCE_DIR}/PMuppCanvas.h
+        ${CMAKE_CURRENT_SOURCE_DIR}/PMuppStartupHandler.h
+  DESTINATION include
+)
diff --git a/src/musredit_qt6/mupp/plotter/PMuppCanvas.cpp b/src/musredit_qt6/mupp/plotter/PMuppCanvas.cpp
new file mode 100644
index 00000000..b9f3f7d6
--- /dev/null
+++ b/src/musredit_qt6/mupp/plotter/PMuppCanvas.cpp
@@ -0,0 +1,657 @@
+/***************************************************************************
+
+  PMuppCanvas.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <cstdlib>
+#include <iostream>
+#include <fstream>
+
+#include <TColor.h>
+#include <TROOT.h>
+#include <TGFileDialog.h>
+#include <TGMsgBox.h>
+#include <TString.h>
+#include <TObjArray.h>
+#include <TObjString.h>
+#include <TRandom.h>
+#include <TAxis.h>
+
+#include "PMuppCanvas.h"
+
+static const char *gFiletypes[] = { "Data files", "*.dat",
+                                    "All files",  "*",
+                                    0,            0 };
+
+ClassImpQ(PMuppCanvas)
+
+//--------------------------------------------------------------------------
+// Constructor
+//--------------------------------------------------------------------------
+/**
+ * @brief PMuppCanvas::PMuppCanvas
+ */
+PMuppCanvas::PMuppCanvas()
+{
+  fFtokName = TString("");
+  fCheckMsgQueue = 0;
+
+  fStyle = 0;
+  fImp = 0;
+  fBar = 0;
+  fPopupMain = 0;
+
+  fMainCanvas = 0;
+  fMultiGraph = 0;
+
+  gStyle->SetHistMinimumZero(kTRUE); // needed to enforce proper bar option handling
+}
+
+//--------------------------------------------------------------------------
+// Constructor
+//--------------------------------------------------------------------------
+/**
+ * @brief PMuppCanvas::PMuppCanvas
+ * @param title
+ * @param wtopx
+ * @param wtopy
+ * @param ww
+ * @param wh
+ * @param markerSytleList
+ * @param markerSizeList
+ * @param colorList
+ */
+PMuppCanvas::PMuppCanvas(const Char_t *title, Int_t wtopx, Int_t wtopy,
+                         Int_t ww, Int_t wh, const PIntVector markerSytleList,
+                         const PDoubleVector markerSizeList, const PIntVector colorList,
+                         const int mupp_instance) :
+  fMuppInstance(mupp_instance),
+  fMarkerStyleList(markerSytleList),
+  fMarkerSizeList(markerSizeList),
+  fColorList(colorList)
+{
+  fValid = true;
+
+  fFtokName = TString("");
+  fCheckMsgQueue = 0;
+
+  // install IPC message queue timer
+  fCheckMsgQueue = new TTimer();
+  if (fCheckMsgQueue == 0) {
+    fValid = false;
+    std::cerr << "**ERROR** couldn't start IPC message queue timer..." << std::endl;
+    return;
+  }
+  fCheckMsgQueue->Connect("Timeout()", "PMuppCanvas", this, "CheckIPCMsgQueue()");
+  fCheckMsgQueue->Start(200, kFALSE);
+
+  CreateStyle();
+  InitMuppCanvas(title, wtopx, wtopy, ww, wh);
+}
+
+//--------------------------------------------------------------------------
+// Destructor
+//--------------------------------------------------------------------------
+/**
+ * @brief PMuppCanvas::~PMuppCanvas
+ */
+PMuppCanvas::~PMuppCanvas()
+{
+  if (fMainCanvas) {
+    delete fMainCanvas;
+  }
+  if (fMultiGraph) {
+    delete fMultiGraph;
+  }
+  if (fStyle) {
+    delete fStyle;
+  }
+}
+
+//--------------------------------------------------------------------------
+// Done (SIGNAL)
+//--------------------------------------------------------------------------
+/**
+ * <p>Signal emitted that the user wants to terminate the application.
+ *
+ * \param status Status info
+ */
+void PMuppCanvas::Done(Int_t status)
+{
+  Emit("Done(Int_t)", status);
+}
+
+//--------------------------------------------------------------------------
+// HandleCmdKey (SLOT)
+//--------------------------------------------------------------------------
+/**
+ * <p>Filters keyboard events, and if they are a command key (see below) carries out the
+ * necessary actions.
+ * <p>Currently implemented command keys:
+ * - 'q' quit mupp_plot
+ *
+ * \param event event type
+ * \param x character key
+ * \param y not used
+ * \param selected not used
+ */
+void PMuppCanvas::HandleCmdKey(Int_t event, Int_t x, Int_t y, TObject *selected)
+{
+  if (event != kKeyPress)
+     return;
+
+  // handle keys and popup menu entries
+  if (x == 'q') { // quit
+    Done(0);
+  } else if (x == 'b') { // about
+    new TGMsgBox(gClient->GetRoot(), 0, "About mupp", "created by Andreas Suter\nPSI/NUM/LMU/LEM\n2018", kMBIconAsterisk);
+  }
+}
+
+//--------------------------------------------------------------------------
+// HandleMenuPopup (SLOT)
+//--------------------------------------------------------------------------
+/**
+ * <p>Handles the mupp menu.
+ *
+ * \param id identification key of the selected menu
+ */
+void PMuppCanvas::HandleMenuPopup(Int_t id)
+{
+  if (id == P_MENU_ID_EXPORT) {
+    ExportData();
+  } else if (id == P_MENU_ID_ABOUT) {
+    new TGMsgBox(gClient->GetRoot(), 0, "About mupp", "created by Andreas Suter\nPSI/NUM/LMU/LEM\n2017", kMBIconAsterisk);
+  }
+}
+
+//--------------------------------------------------------------------------
+// LastCanvasClosed (SLOT)
+//--------------------------------------------------------------------------
+/**
+ * <p>Slot called when the last canvas has been closed. Will emit Done(0) which will
+ * terminate the application.
+ */
+void PMuppCanvas::LastCanvasClosed()
+{
+  if (gROOT->GetListOfCanvases()->IsEmpty()) {
+    Done(0);
+  }
+}
+
+//--------------------------------------------------------------------------
+// WindowClosed (SLOT)
+//--------------------------------------------------------------------------
+/**
+ * <p>Slot called when the canvas is closed. Seems to be necessary on some systems.
+ */
+void PMuppCanvas::WindowClosed()
+{
+  gROOT->GetListOfCanvases()->Remove(fMainCanvas);
+  LastCanvasClosed();
+}
+
+//--------------------------------------------------------------------------
+// CreateStyle (private)
+//--------------------------------------------------------------------------
+/**
+ * <p> Set styles for the canvas. Perhaps one could transfer them to the startup-file in the future.
+ */
+void PMuppCanvas::CreateStyle()
+{
+  TString muppStyle("muppStyle");
+  fStyle = new TStyle(muppStyle, muppStyle);
+  fStyle->SetOptStat(0);  // no statistics options
+  fStyle->SetOptTitle(0); // no title
+  // set margins
+  fStyle->SetPadLeftMargin(0.15);
+  fStyle->SetPadRightMargin(0.05);
+  fStyle->SetPadBottomMargin(0.12);
+  fStyle->SetPadTopMargin(0.05);
+
+  fStyle->cd();
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PMuppCanvas::InitMuppCanvas
+ * @param title
+ * @param wtopx
+ * @param wtopy
+ * @param ww
+ * @param wh
+ */
+void PMuppCanvas::InitMuppCanvas(const Char_t *title, Int_t wtopx, Int_t wtopy, Int_t ww, Int_t wh)
+{
+  fValid = false;
+
+  // invoke canvas
+  TString canvasName = TString("fMuppCanvas");
+  fMainCanvas = new TCanvas(canvasName.Data(), title, wtopx, wtopy, ww, wh);
+  if (fMainCanvas == 0) {
+    std::cerr << std::endl << ">> PMuppCanvas::InitMuppCanvas(): **PANIC ERROR** Couldn't invoke " << canvasName.Data();
+    std::cerr << std::endl;
+    return;
+  }
+
+  fMainCanvas->SetFillColor(0);
+
+  fMultiGraph = 0;
+
+  fImp = (TRootCanvas*)fMainCanvas->GetCanvasImp();
+  fImp->Connect("CloseWindow()", "PMuppCanvas", this, "WindowClosed()");
+  fBar = fImp->GetMenuBar();
+  fPopupMain = fBar->AddPopup("&Mupp");
+
+  fPopupMain->AddEntry("Export &Data", P_MENU_ID_EXPORT);
+  fPopupMain->AddSeparator();
+  fPopupMain->AddEntry("A&bout", P_MENU_ID_ABOUT);
+
+  fBar->MapSubwindows();
+  fBar->Layout();
+
+  fPopupMain->Connect("TGPopupMenu", "Activated(Int_t)", "PMuppCanvas", this, "HandleMenuPopup(Int_t)");
+
+  fValid = true;
+
+  fMainCanvas->cd();
+  fMainCanvas->Show();
+  fMainCanvas->Connect("ProcessedEvent(Int_t,Int_t,Int_t,TObject*)", "PMuppCanvas",
+                       this, "HandleCmdKey(Int_t,Int_t,Int_t,TObject*)");
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PMuppCanvas::CheckIPCMsgQueue
+ */
+void PMuppCanvas::CheckIPCMsgQueue()
+{
+  int msqid, flags, type, key, status;
+  ssize_t msgLen;
+  struct mbuf msg;
+  char str[1024];
+
+  // get msqid
+  if (fFtokName.IsWhitespace()) {
+    strncpy(str, getenv("HOME"), sizeof(str)-1);
+    if (strlen(str) == 0) {
+      std::cerr << std::endl;
+      std::cerr << "**ERROR** couldn't get value of the environment variable HOME." << std::endl << std::endl;
+      return;
+    }
+    memset(str, '\0', sizeof(str));
+    snprintf(str, sizeof(str), "%s/.musrfit/mupp/_mupp_ftok_%d.dat", getenv("HOME"), fMuppInstance);
+    std::ifstream fin(str, std::ifstream::in);
+    if (!fin.is_open()) {
+      std::cerr << std::endl;
+      std::cerr << "**ERROR** couldn't open " << str << std::endl;
+      return;
+    }
+    fin.getline(str, 1024);
+    fin.close();
+    fFtokName = str;
+  }
+
+  key = ftok(fFtokName.Data(), fMuppInstance);
+  flags = IPC_CREAT;
+  msqid = msgget(key, flags | S_IRUSR | S_IWUSR);
+  if (msqid == -1) {
+    std::cerr << std::endl;
+    std::cerr << "**ERROR** couldn't get msqid." << std::endl << std::endl;
+    return;
+  }
+
+  // get message
+  flags = IPC_NOWAIT;
+  type = 1;
+  msgLen = msgrcv(msqid, &msg, PMUPP_MAX_MTEXT, type, flags);
+
+  if (msgLen > 0) {
+    status = ReadPlotData(msg.mtext);
+    if (status != 0) {
+      std::cerr << "**ERROR** reading " << msg.mtext << std::endl;
+    }
+  }
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PMuppCanvas::ReadPlotData
+ * @param fln
+ * @return
+ */
+int PMuppCanvas::ReadPlotData(const Char_t *fln)
+{
+  std::ifstream fin(fln, std::ifstream::in);
+  char line[1024];
+
+  if (!fin.is_open()) {
+    std::cerr << "**ERROR** Couldn't open " << fln << std::endl;
+    return -1;
+  }
+
+  TString str;
+  TObjArray *tok;
+  TObjString *ostr;
+  Ssiz_t idx;
+  Int_t noOfDataTokens=0;
+  PDataCollection data;
+  PDataPoint dataPoint;
+  fPlotData.clear();
+  while (fin.good()) {
+    fin.getline(line, 1024);
+    if (line[0] == '%') {
+      if (strstr(line, "% collName")) {
+        noOfDataTokens = 0;
+        InitDataCollection(data); // make sure that one starts with a fresh collection
+        str = line;
+        idx = str.First("=");
+        str = str.Remove(0,idx+2);
+        data.name = str;
+      } else if (strstr(line, "% end")) {
+        fPlotData.push_back(data);
+      }
+    } else if (strlen(line) == 0) { // ignore empty lines
+      continue;
+    } else if (strstr(line, "xLabel:")) { // header information
+      str = line;
+      tok = str.Tokenize(":,");
+      if (tok == 0) {
+        std::cerr << "**ERROR** Couldn't tokenize the label line." << std::endl;
+        fin.close();
+        return -2;
+      }
+      if (tok->GetEntries() < 4) {
+        std::cerr << "**ERROR** label line doesn't contain sufficient information." << std::endl;
+        fin.close();
+        return -3;
+      }
+      ostr = dynamic_cast<TObjString*>(tok->At(1));
+      data.xLabel = ostr->GetString();
+      noOfDataTokens++;
+      for (Int_t i=3; i<tok->GetEntries(); i+=2) {
+        ostr = dynamic_cast<TObjString*>(tok->At(i));
+        data.yLabel.push_back(ostr->GetString());
+        noOfDataTokens++;
+      }
+
+      // clean up
+      delete tok;
+      tok = 0;
+    } else { // data lines
+      str = line;
+      tok = str.Tokenize(", ");
+      if (tok == 0) {
+        std::cerr << "**ERROR** Couldn't tokenize data line." << std::endl;
+        fin.close();
+        return -4;
+      }
+      if (tok->GetEntries() != (noOfDataTokens-1)*3+1) {
+        std::cerr << "**ERROR** number of token in data line (" << tok->GetEntries() << ") is inconsistent with no of labels (" << noOfDataTokens << ")." << std::endl;
+        fin.close();
+        return -4;
+      }
+
+      // resize y-value vector properly
+      data.yValue.resize(noOfDataTokens-1);
+
+      // raw data point
+      // x-value
+      ostr = dynamic_cast<TObjString*>(tok->At(0));
+      str = ostr->GetString();
+      if (!str.IsFloat()) {
+        std::cerr << "**ERROR** token found in data line is not a number (" << str << ")." << std::endl;
+        fin.close();
+        return -5;
+      }
+      data.xValue.push_back(str.Atof());
+
+      // y-value(s)
+      Int_t idx=0;
+      for (Int_t i=1; i<tok->GetEntries(); i+=3) {
+        // y-value
+        ostr = dynamic_cast<TObjString*>(tok->At(i));
+        str = ostr->GetString();
+        if (!str.IsFloat()) {
+          std::cerr << "**ERROR** token found in data line is not a number (" << str << ")." << std::endl;
+          fin.close();
+          return -5;
+        }
+        dataPoint.y = str.Atof();
+
+        // pos y error-value
+        ostr = dynamic_cast<TObjString*>(tok->At(i+1));
+        str = ostr->GetString();
+        if (!str.IsFloat()) {
+          std::cerr << "**ERROR** token found in data line is not a number (" << str << ")." << std::endl;
+          fin.close();
+          return -5;
+        }
+        dataPoint.eYpos = str.Atof();
+
+        // neg y error-value
+        ostr = dynamic_cast<TObjString*>(tok->At(i+2));
+        str = ostr->GetString();
+        if (!str.IsFloat()) {
+          std::cerr << "**ERROR** token found in data line is not a number (" << str << ")." << std::endl;
+          fin.close();
+          return -5;
+        }
+        dataPoint.eYneg = str.Atof();
+
+        // push dataPoint back into data structure
+        data.yValue[idx].push_back(dataPoint);
+        idx++;
+      }
+
+      // clean up
+      delete tok;
+      tok = 0;
+    }
+  }
+
+  fin.close();
+
+  // check if data structure makes sense
+  for (UInt_t i=0; i<fPlotData.size(); i++) {
+    std::cerr << "debug> collection " << i << std::endl;
+    std::cerr << "debug> name    : " << fPlotData[i].name << std::endl;
+    std::cerr << "debug> x-label : " << fPlotData[i].xLabel << std::endl;
+    std::cerr << "debug> x-vales : " << std::endl;
+    std::cerr << "debug> ";
+    for (UInt_t j=0; j<fPlotData[i].xValue.size(); j++) {
+      std::cerr << fPlotData[i].xValue[j] << ", ";
+    }
+    std::cerr << std::endl;
+    for (UInt_t j=0; j<fPlotData[i].yValue.size(); j++) {
+      std::cerr << "debug> y-label : " << fPlotData[i].yLabel[j] << std::endl;
+      std::cerr << "debug> y-values " << j << ": " << std::endl;
+      for (UInt_t k=0; k<fPlotData[i].yValue[j].size(); k++) {
+        std::cerr << "debug> " << k << ": " << fPlotData[i].yValue[j][k].y << "(" << fPlotData[i].yValue[j][k].eYneg << "/" << fPlotData[i].yValue[j][k].eYpos << ")" << std::endl;
+      }
+    }
+    std::cerr << std::endl;
+  }
+
+  // feed graph objects
+  UpdateGraphs();
+
+  return 0;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PMuppCanvas::InitDataCollection
+ * @param coll
+ */
+void PMuppCanvas::InitDataCollection(PDataCollection &coll)
+{
+  coll.name = TString("");
+  coll.xLabel = TString("");
+  coll.yLabel.clear();
+  coll.xValue.clear();
+  coll.yValue.clear();
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PMuppCanvas::UpdateGraphs
+ */
+void PMuppCanvas::UpdateGraphs()
+{
+  // first: get rid of all previous plots
+  for (UInt_t i=0; i<fGraphE.size(); i++) {
+    delete fGraphE[i];
+  }
+  fGraphE.clear();
+
+  if (fMultiGraph) {
+    delete fMultiGraph;
+    fMultiGraph = 0;
+  }
+
+  // second: create all the necessary graphs
+  TGraphAsymmErrors *gg = 0;
+  UInt_t idxS = 0, idxC = 0;
+  Int_t color;
+  TString str;
+  if (fMultiGraph == 0) { // first time called
+    for (UInt_t i=0; i<fPlotData.size(); i++) { // loop over all collections
+      for (UInt_t j=0; j<fPlotData[i].yValue.size(); j++) { // loop over all graph's within the collection
+        gg = new TGraphAsymmErrors(fPlotData[i].xValue.size());
+        for (UInt_t k=0; k<fPlotData[i].yValue[j].size(); k++) {
+          gg->SetPoint(k, fPlotData[i].xValue[k], fPlotData[i].yValue[j][k].y);
+          gg->SetPointError(k, 0.0, 0.0, fabs(fPlotData[i].yValue[j][k].eYneg), fPlotData[i].yValue[j][k].eYpos);
+          // set marker style and size
+          if (idxS < fMarkerStyleList.size()) {
+            gg->SetMarkerStyle(fMarkerStyleList[idxS]);
+            gg->SetMarkerSize(fMarkerSizeList[idxS]);
+          } else { // random choice of the marker
+            // still missing as35
+          }
+          // set color
+          if (idxC < fColorList.size()) {
+            gg->SetMarkerColor(fColorList[idxC]);
+            gg->SetLineColor(fColorList[idxC]);
+            gg->SetFillColor(kWhite);
+          } else { // random choise of the color
+            TRandom rand(i+j+k);
+            color = TColor::GetColor((Int_t)rand.Integer(255), (Int_t)rand.Integer(255), (Int_t)rand.Integer(255));
+            gg->SetMarkerColor(color);
+            gg->SetLineColor(color);
+            gg->SetFillColor(kWhite);
+          }
+        }
+        idxS++;
+        idxC++;
+
+        // set name
+        str = fPlotData[i].yLabel[j];
+        if (fPlotData[i].yValue.size() > 1) {
+          str += "-";
+          str += j;
+        }
+        gg->SetName(str);
+        gg->SetTitle(str);
+
+        // set x-axis title
+        gg->GetXaxis()->SetTitle(fPlotData[i].xLabel);
+        // set y-axis title
+        gg->GetYaxis()->SetTitle(fPlotData[i].yLabel[j]);
+
+        fGraphE.push_back(gg);
+      }
+    }
+
+    fMultiGraph = new TMultiGraph();
+    if (fMultiGraph == 0) {
+      std::cerr << "**ERROR** couldn't create necessary TMultiGraph object." << std::endl;
+      return;
+    }
+
+    if (fGraphE.size() == 0) {
+      std::cerr << "**ERROR** NO graphs present! This should never happen." << std::endl;
+      return;
+    }
+
+    for (UInt_t i=0; i<fGraphE.size(); i++) {
+      fMultiGraph->Add(fGraphE[i], "p");
+    }
+
+    fMultiGraph->Draw("a");
+
+    // set x-axis limits. This is needed that the graphs x-axis starts at 0.0
+    Double_t xmin=fMultiGraph->GetXaxis()->GetXmin();
+    Double_t xmax=fMultiGraph->GetXaxis()->GetXmax();
+    if (xmin > 0.0) {
+      fMultiGraph->GetXaxis()->SetLimits(0.0, xmax);
+    }
+
+    // set fMultiGraph x/y-axis title
+    if (fGraphE.size() == 1) { // only one data set
+      fMultiGraph->GetXaxis()->SetTitle(fGraphE[0]->GetXaxis()->GetTitle());
+      fMultiGraph->GetXaxis()->SetTitleSize(0.05);
+      fMultiGraph->GetYaxis()->SetTitle(fGraphE[0]->GetYaxis()->GetTitle());
+      fMultiGraph->GetYaxis()->SetTitleOffset(1.25);
+      fMultiGraph->GetYaxis()->SetTitleSize(0.05);
+      fMultiGraph->GetYaxis()->SetLabelOffset(0.01);
+      fMultiGraph->GetYaxis()->SetDecimals();
+    } else { // multiple data sets
+      fMultiGraph->GetXaxis()->SetTitle(fGraphE[0]->GetXaxis()->GetTitle()); // need a better solution, as35
+      fMultiGraph->GetXaxis()->SetTitleSize(0.05);
+      fMultiGraph->GetYaxis()->SetTitle(fGraphE[0]->GetYaxis()->GetTitle()); // need a better solution, as35
+      fMultiGraph->GetYaxis()->SetTitleOffset(1.25);
+      fMultiGraph->GetYaxis()->SetTitleSize(0.05);
+      fMultiGraph->GetYaxis()->SetLabelOffset(0.01);
+      fMultiGraph->GetYaxis()->SetDecimals();
+    }
+    gPad->Modified();
+
+    fMainCanvas->cd();
+    fMainCanvas->Update();
+  } else { // update of the graphs
+    // still missing, as35
+  }
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PMuppCanvas::ExportData
+ */
+void PMuppCanvas::ExportData()
+{
+  static TString dir(".");
+  TGFileInfo fi;
+  fi.fFileTypes = gFiletypes;
+  fi.fIniDir = StrDup(dir);
+  fi.fOverwrite = true;
+  new TGFileDialog(0, fImp, kFDSave, &fi);
+  if (fi.fFilename && strlen(fi.fFilename)) {
+    // still missing, as35
+    new TGMsgBox(gClient->GetRoot(), 0, "ExportData", "NOT YET IMPLEMENTED", kMBIconAsterisk);
+  }
+}
diff --git a/src/musredit_qt6/mupp/plotter/PMuppCanvas.h b/src/musredit_qt6/mupp/plotter/PMuppCanvas.h
new file mode 100644
index 00000000..a57a2228
--- /dev/null
+++ b/src/musredit_qt6/mupp/plotter/PMuppCanvas.h
@@ -0,0 +1,127 @@
+/***************************************************************************
+
+  PMuppCanvas.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PMUPPCANVAS_H_
+#define _PMUPPCANVAS_H_
+
+#include <vector>
+
+#include <TObject.h>
+#include <TQObject.h>
+#include <TStyle.h>
+#include <TRootCanvas.h>
+#include <TGMenu.h>
+#include <TCanvas.h>
+#include <TMultiGraph.h>
+#include <TGraphAsymmErrors.h>
+#include <TTimer.h>
+
+#include "mupp_plot.h"
+#include "mupp.h"
+
+// Canvas menu id's
+#define P_MENU_ID_EXPORT 10001
+#define P_MENU_ID_ABOUT  10002
+
+//--------------------------------------------------------------------------
+typedef struct {
+  Double_t y;
+  Double_t eYpos;
+  Double_t eYneg;
+} PDataPoint;
+
+//--------------------------------------------------------------------------
+typedef struct {
+  TString name; // collection name
+  TString xLabel;
+  PStringVector yLabel;
+  PDoubleVector xValue;
+  std::vector< std::vector<PDataPoint> > yValue;
+} PDataCollection;
+
+//--------------------------------------------------------------------------
+class PMuppCanvas : public TObject, public  TQObject
+{
+public:
+  PMuppCanvas();
+  PMuppCanvas(const Char_t* title,
+              Int_t wtopx, Int_t wtopy, Int_t ww, Int_t wh,
+              const PIntVector markerSytleList, const PDoubleVector markerSizeList,
+              const PIntVector colorList,
+              const int mupp_instance);
+  virtual ~PMuppCanvas();
+
+  virtual Bool_t IsValid() { return fValid; }
+
+  virtual void Done(Int_t status=0); // *SIGNAL*
+  virtual void HandleCmdKey(Int_t event, Int_t x, Int_t y, TObject *selected); // SLOT
+  virtual void HandleMenuPopup(Int_t id); // SLOT
+  virtual void LastCanvasClosed(); // SLOT
+  virtual void WindowClosed(); // SLOT
+
+  virtual void CheckIPCMsgQueue();
+
+private:
+  Bool_t fValid;
+  Int_t fMuppInstance;
+
+  TString fFtokName;
+  TTimer *fCheckMsgQueue; ///< timer needed to check if a message in the IPC message queue is pending
+
+  std::vector<PDataCollection> fPlotData;
+
+  TStyle    *fStyle; ///< A collection of all graphics attributes
+
+  // canvas menu related variables
+  TRootCanvas *fImp;           ///< ROOT native GUI version of main window with menubar and drawing area
+  TGMenuBar   *fBar;           ///< menu bar
+  TGPopupMenu *fPopupMain;     ///< popup menu mupp in the main menu bar
+
+  // canvas related variables
+  TCanvas   *fMainCanvas;            ///< main canvas
+  TMultiGraph *fMultiGraph;          ///< main multi graph
+  std::vector<TGraphAsymmErrors*> fGraphE; ///< all error graphs
+
+  // perdefined markers, colors
+  PIntVector    fMarkerStyleList;
+  PDoubleVector fMarkerSizeList;
+  PIntVector    fColorList;
+
+  virtual void CreateStyle();
+  virtual void InitMuppCanvas(const Char_t* title, Int_t wtopx, Int_t wtopy, Int_t ww, Int_t wh);
+
+  virtual int ReadPlotData(const Char_t *fln);
+  virtual void InitDataCollection(PDataCollection &coll);
+  virtual void UpdateGraphs();
+  virtual void ExportData();
+
+  ClassDef(PMuppCanvas, 1)
+};
+
+#endif // _PMUPPCANVAS_H_
diff --git a/src/musredit_qt6/mupp/plotter/PMuppCanvasLinkDef.h b/src/musredit_qt6/mupp/plotter/PMuppCanvasLinkDef.h
new file mode 100644
index 00000000..ae26b70f
--- /dev/null
+++ b/src/musredit_qt6/mupp/plotter/PMuppCanvasLinkDef.h
@@ -0,0 +1,38 @@
+/***************************************************************************
+
+  PMuppCanvasLinkDef.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifdef __CINT__
+
+#pragma link off all globals;
+#pragma link off all classes;
+#pragma link off all functions;
+
+#pragma link C++ class PMuppCanvas+;
+
+#endif
diff --git a/src/musredit_qt6/mupp/plotter/PMuppStartupHandler.cpp b/src/musredit_qt6/mupp/plotter/PMuppStartupHandler.cpp
new file mode 100644
index 00000000..1e6143b9
--- /dev/null
+++ b/src/musredit_qt6/mupp/plotter/PMuppStartupHandler.cpp
@@ -0,0 +1,457 @@
+/***************************************************************************
+
+  PMuppStartupHandler.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <iostream>
+#include <fstream>
+
+#include "PMuppStartupHandler.h"
+
+ClassImpQ(PMuppStartupHandler)
+
+//--------------------------------------------------------------------------
+// This function is a replacement for the ParseFile method of TSAXParser.
+// It is needed because in certain environments ParseFile does not work but ParseBuffer does.
+//--------------------------------------------------------------------------
+/**
+ * <p> Replacement for the ParseFile method of TSAXParser.
+ *
+ * <p><b>return:</b>
+ * - 1 if file cannot be read
+ * - 0 if the file has been parsed successfully
+ * - parse error code otherwise
+ *
+ * \param saxParser pointer to a TSAXParser object
+ * \param startup_path_name full path to the XML file to be read
+ */
+int parseXmlFile(TSAXParser *saxParser, const char *startup_path_name)
+{
+  int status;
+  std::fstream xmlFile;
+  unsigned int xmlSize = 0;
+  char *xmlBuffer = 0;
+
+  xmlFile.open(startup_path_name, std::ios::in | std::ios::ate); // open file for reading and go to the end of the file
+  if (xmlFile.is_open()) { // check if file has been opened successfully
+    xmlSize = xmlFile.tellg(); // get the position within the stream == size of the file (since we are at the end)
+    xmlFile.seekg(0, std::ios::beg); // go back to the beginning of the stream
+    xmlBuffer = new char[xmlSize]; // allocate buffer memory for the whole XML file
+    xmlFile.read(xmlBuffer, xmlSize); // read in the whole XML file into the buffer
+    xmlFile.close(); // close the XML file
+  }
+  if (!xmlBuffer) { // file has not been read into the buffer
+    status = 1;
+  } else {
+    status = saxParser->ParseBuffer(xmlBuffer, xmlSize); // parse buffer
+    delete[] xmlBuffer; // free the buffer memory
+    xmlBuffer = 0;
+  }
+
+  return status;
+}
+
+//--------------------------------------------------------------------------
+// Constructor
+//--------------------------------------------------------------------------
+/**
+ * @brief PMuppStartupHandler::PMuppStartupHandler
+ */
+PMuppStartupHandler::PMuppStartupHandler()
+{
+  fStartupFileFound = false;
+  fStartupFilePath = "";
+
+  // get default path (for the moment only linux like)
+  Char_t *home=0;
+  Char_t musrpath[128];
+  Char_t startup_path_name[128];
+
+  strncpy(musrpath, "", sizeof(musrpath));
+
+  // check if the startup file is found in the current directory
+  strcpy(startup_path_name, "./mupp_startup.xml");
+  if (StartupFileExists(startup_path_name)) {
+    fStartupFileFound = true;
+    fStartupFilePath = TString(startup_path_name);
+  }
+  if (!fStartupFileFound) { // startup file not found in the current directory
+    // check if the startup file is found under $HOME/.musrfit/mupp
+    home = getenv("HOME");
+    if (home != 0) {
+      sprintf(startup_path_name, "%s/.musrfit/mupp/mupp_startup.xml", home);
+      if (StartupFileExists(startup_path_name)) {
+        fStartupFilePath = TString(startup_path_name);
+        fStartupFileFound = true;
+      }
+    }
+  }
+}
+
+//--------------------------------------------------------------------------
+// Destructor
+//--------------------------------------------------------------------------
+/**
+ * @brief PMuppStartupHandler::~PStartupHandler
+ */
+PMuppStartupHandler::~PMuppStartupHandler()
+{
+  fMarkerStyleList.clear();
+  fMarkerSizeList.clear();
+  fColorList.clear();
+}
+
+//--------------------------------------------------------------------------
+// OnStartDocument
+//--------------------------------------------------------------------------
+/**
+ * <p>Called on start of the XML file reading. Initializes all necessary variables.
+ */
+void PMuppStartupHandler::OnStartDocument()
+{
+  fKey = eEmpty;
+}
+
+//--------------------------------------------------------------------------
+// OnEndDocument
+//--------------------------------------------------------------------------
+/**
+ * <p>Called on end of XML file reading.
+ */
+void PMuppStartupHandler::OnEndDocument()
+{
+  // check if anything was set, and if not set some default stuff
+  CheckLists();
+}
+
+//--------------------------------------------------------------------------
+// OnStartElement
+//--------------------------------------------------------------------------
+/**
+ * <p>Called when a XML start element is found. Filters out the needed elements
+ * and sets a proper key.
+ *
+ * \param str XML element name
+ * \param attributes not used
+ */
+void PMuppStartupHandler::OnStartElement(const Char_t *str, const TList *attributes)
+{
+  if (!strcmp(str, "marker")) {
+    fKey = eMarker;
+  } else if (!strcmp(str, "color")) {
+    fKey = eColor;
+  }
+}
+
+//--------------------------------------------------------------------------
+// OnEndElement
+//--------------------------------------------------------------------------
+/**
+ * <p>Called when a XML end element is found. Resets the handler key.
+ *
+ * \param str not used
+ */
+void PMuppStartupHandler::OnEndElement(const Char_t *str)
+{
+  fKey = eEmpty;
+}
+
+//--------------------------------------------------------------------------
+// OnCharacters
+//--------------------------------------------------------------------------
+/**
+ * <p>Content of a given XML element. Filters out the data and feeds them to
+ * the internal variables.
+ *
+ * \param str XML element string
+ */
+void PMuppStartupHandler::OnCharacters(const Char_t *str)
+{
+  TObjArray  *tokens;
+  TObjString *ostr;
+  TString tstr;
+  Int_t   color, r, g, b;
+
+  switch (fKey) {
+  case eMarker:
+    // check that str is <number>,<number>
+    tstr = TString(str);
+    tokens = tstr.Tokenize(",");
+    if (tokens == 0) {
+      std::cerr << std::endl << "PMuppStartupHandler **WARNING** '" << str << "' is not a marker code, will ignore it";
+      std::cerr << std::endl;
+      return;
+    }
+    if (tokens->GetEntries() != 2) {
+      std::cerr << std::endl << "PMuppStartupHandler **WARNING** '" << str << "' is not a marker code, will ignore it";
+      std::cerr << std::endl;
+      return;
+    }
+    // get marker style
+    ostr = dynamic_cast<TObjString*>(tokens->At(0));
+    tstr = ostr->GetString();
+    if (tstr.IsDigit()) {
+      fMarkerStyleList.push_back(tstr.Atoi());
+    } else {
+      std::cerr << std::endl << "PMuppStartupHandler **WARNING** marker style '" << str << "' is not a number, will ignore it";
+      std::cerr << std::endl;
+    }
+    // get marker size
+    ostr = dynamic_cast<TObjString*>(tokens->At(1));
+    tstr = ostr->GetString();
+    if (tstr.IsFloat()) {
+      fMarkerSizeList.push_back(tstr.Atof());
+    } else {
+      std::cerr << std::endl << "PMuppStartupHandler **WARNING** marker size '" << str << "' is not a float, will ignore it";
+      std::cerr << std::endl;
+    }
+    // clean up tokens
+    if (tokens) {
+      delete tokens;
+      tokens = 0;
+    }
+    break;
+  case eColor:
+    // check that str is a rbg code
+    tstr = TString(str);
+    tokens = tstr.Tokenize(",");
+    // check that there any tokens
+    if (tokens == 0) {
+      std::cerr << std::endl << "PMuppStartupHandler **WARNING** '" << str << "' is not a rbg code, will ignore it";
+      std::cerr << std::endl;
+      return;
+    }
+    // check there is the right number of tokens
+    if (tokens->GetEntries() < 3) {
+      std::cerr << std::endl << "PMuppStartupHandler **WARNING** '" << str << "' is not a rbg code, will ignore it";
+      std::cerr << std::endl;
+      return;
+    }
+    // get r
+    ostr = dynamic_cast<TObjString*>(tokens->At(0));
+    tstr = ostr->GetString();
+    if (tstr.IsDigit()) {
+      r = tstr.Atoi();
+    } else {
+      std::cerr << std::endl << "PMuppStartupHandler **WARNING** r within the rgb code is not a number, will ignore it";
+      std::cerr << std::endl;
+      return;
+    }
+    // get g
+    ostr = dynamic_cast<TObjString*>(tokens->At(1));
+    tstr = ostr->GetString();
+    if (tstr.IsDigit()) {
+      g = tstr.Atoi();
+    } else {
+      std::cerr << std::endl << "PMuppStartupHandler **WARNING** g within the rgb code is not a number, will ignore it";
+      std::cerr << std::endl;
+      return;
+    }
+    // get b
+    ostr = dynamic_cast<TObjString*>(tokens->At(2));
+    tstr = ostr->GetString();
+    if (tstr.IsDigit()) {
+      b = tstr.Atoi();
+    } else {
+      std::cerr << std::endl << "PMuppStartupHandler **WARNING** b within the rgb code is not a number, will ignore it";
+      std::cerr << std::endl;
+      return;
+    }
+    // clean up tokens
+    if (tokens) {
+      delete tokens;
+      tokens = 0;
+    }
+    // generate the ROOT color code based on str
+    color = TColor::GetColor(r,g,b);
+    // add the color code to the color list
+    fColorList.push_back(color);
+    break;
+  default:
+    break;
+  }
+}
+
+//--------------------------------------------------------------------------
+// OnComment
+//--------------------------------------------------------------------------
+/**
+ * <p>Called when a XML comment is found. Not used.
+ *
+ * \param str not used.
+ */
+void PMuppStartupHandler::OnComment(const Char_t *str)
+{
+  // nothing to be done for now
+}
+
+//--------------------------------------------------------------------------
+// OnWarning
+//--------------------------------------------------------------------------
+/**
+ * <p>Called when the XML parser emits a warning.
+ *
+ * \param str warning string
+ */
+void PMuppStartupHandler::OnWarning(const Char_t *str)
+{
+  std::cerr << std::endl << "PMuppStartupHandler **WARNING** " << str;
+  std::cerr << std::endl;
+}
+
+//--------------------------------------------------------------------------
+// OnError
+//--------------------------------------------------------------------------
+/**
+ * <p>Called when the XML parser emits an error.
+ *
+ * \param str error string
+ */
+void PMuppStartupHandler::OnError(const Char_t *str)
+{
+  std::cerr << std::endl << "PMuppStartupHandler **ERROR** " << str;
+  std::cerr << std::endl;
+}
+
+//--------------------------------------------------------------------------
+// OnFatalError
+//--------------------------------------------------------------------------
+/**
+ * <p>Called when the XML parser emits a fatal error.
+ *
+ * \param str fatal error string
+ */
+void PMuppStartupHandler::OnFatalError(const Char_t *str)
+{
+  std::cerr << std::endl << "PMuppStartupHandler **FATAL ERROR** " << str;
+  std::cerr << std::endl;
+}
+
+//--------------------------------------------------------------------------
+// OnCdataBlock
+//--------------------------------------------------------------------------
+/**
+ * <p>Not used.
+ *
+ * \param str not used
+ * \param len not used
+ */
+void PMuppStartupHandler::OnCdataBlock(const Char_t *str, Int_t len)
+{
+  // nothing to be done for now
+}
+
+//--------------------------------------------------------------------------
+// CheckLists
+//--------------------------------------------------------------------------
+/**
+ * <p>Check if the default lists are present and if not, feed them with some default settings
+ *
+ */
+void PMuppStartupHandler::CheckLists()
+{
+  // check if anything was set, and if not set some default stuff
+
+  // check if any marker styles are given
+  if (fMarkerStyleList.size() == 0) {
+    fMarkerStyleList.push_back(24); // open circle
+    fMarkerStyleList.push_back(25); // open square
+    fMarkerStyleList.push_back(26); // open triangle
+    fMarkerStyleList.push_back(27); // open diamond
+    fMarkerStyleList.push_back(28); // open cross
+    fMarkerStyleList.push_back(29); // full star
+    fMarkerStyleList.push_back(30); // open star
+    fMarkerStyleList.push_back(20); // full circle
+    fMarkerStyleList.push_back(21); // full square
+    fMarkerStyleList.push_back(22); // full triangle
+    fMarkerStyleList.push_back(23); // full down triangle
+    fMarkerStyleList.push_back(2);  // thin cross
+    fMarkerStyleList.push_back(3);  // thin star
+    fMarkerStyleList.push_back(5);  // thin cross 45° rotated
+  }
+
+  // check if any marker ssizes are given
+  if (fMarkerSizeList.size() == 0) {
+    fMarkerSizeList.push_back(1.3);
+    fMarkerSizeList.push_back(1.3);
+    fMarkerSizeList.push_back(1.5);
+    fMarkerSizeList.push_back(1.5);
+    fMarkerSizeList.push_back(1.5);
+    fMarkerSizeList.push_back(1.5);
+    fMarkerSizeList.push_back(1.3);
+    fMarkerSizeList.push_back(1.3);
+    fMarkerSizeList.push_back(1.5);
+    fMarkerSizeList.push_back(1.5);
+    fMarkerSizeList.push_back(1.5);
+    fMarkerSizeList.push_back(1.5);
+    fMarkerSizeList.push_back(1.5);
+    fMarkerSizeList.push_back(1.5);
+  }
+
+  // check if any colors are given
+  if (fColorList.size() == 0) {
+    fColorList.push_back(TColor::GetColor(0, 0, 0));     // kBlack
+    fColorList.push_back(TColor::GetColor(255, 0, 0));   // kRed
+    fColorList.push_back(TColor::GetColor(0, 255, 0));   // kGreen
+    fColorList.push_back(TColor::GetColor(0, 0, 255));   // kBlue
+    fColorList.push_back(TColor::GetColor(255, 0, 255)); // kMagneta
+    fColorList.push_back(TColor::GetColor(0, 255, 255)); // kCyan
+    fColorList.push_back(TColor::GetColor(156, 0, 255)); // kViolette-3
+    fColorList.push_back(TColor::GetColor(99, 101, 49)); // kYellow-1
+    fColorList.push_back(TColor::GetColor(49, 101, 49)); // kGreen-1
+    fColorList.push_back(TColor::GetColor(156, 48, 0));  // kOrange-4
+  }
+}
+
+//--------------------------------------------------------------------------
+// StartupFileExists
+//--------------------------------------------------------------------------
+/**
+ * <p>Checks if a file is present on the disc.
+ *
+ * <b>return:</b>
+ * - true, if the file is present
+ * - false, otherwise
+ *
+ * \param fln file name
+ */
+Bool_t PMuppStartupHandler::StartupFileExists(Char_t *fln)
+{
+  Bool_t result = false;
+
+  std::ifstream ifile(fln);
+
+  if (ifile.fail()) {
+    result = false;
+  } else {
+    result = true;
+    ifile.close();
+  }
+
+  return result;
+}
+
diff --git a/src/musredit_qt6/mupp/plotter/PMuppStartupHandler.h b/src/musredit_qt6/mupp/plotter/PMuppStartupHandler.h
new file mode 100644
index 00000000..5fd6b76e
--- /dev/null
+++ b/src/musredit_qt6/mupp/plotter/PMuppStartupHandler.h
@@ -0,0 +1,90 @@
+/***************************************************************************
+
+  PMuppStartupHandler.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PMUPPSTARTUPHANDLER_H_
+#define _PMUPPSTARTUPHANDLER_H_
+
+#include <TObject.h>
+#include <TQObject.h>
+#include <TList.h>
+#include <TObjArray.h>
+#include <TObjString.h>
+#include <TString.h>
+#include <TColor.h>
+#include <TSAXParser.h>
+
+#include "mupp_plot.h"
+
+//--------------------------------------------------------------------------
+// This function is a replacement for the ParseFile method of TSAXParser.
+//--------------------------------------------------------------------------
+int parseXmlFile(TSAXParser*, const char*);
+
+class PMuppStartupHandler : public TObject, public TQObject
+{
+public:
+  PMuppStartupHandler();
+  virtual ~PMuppStartupHandler();
+
+  virtual void OnStartDocument(); // SLOT
+  virtual void OnEndDocument(); // SLOT
+  virtual void OnStartElement(const Char_t*, const TList*); // SLOT
+  virtual void OnEndElement(const Char_t*); // SLOT
+  virtual void OnCharacters(const Char_t*); // SLOT
+  virtual void OnComment(const Char_t*); // SLOT
+  virtual void OnWarning(const Char_t*); // SLOT
+  virtual void OnError(const Char_t*); // SLOT
+  virtual void OnFatalError(const Char_t*); // SLOT
+  virtual void OnCdataBlock(const Char_t*, Int_t); // SLOT
+
+  virtual Bool_t StartupFileFound() { return fStartupFileFound; } ///< true = mupp_startup.xml found
+  virtual TString GetStartupFilePath() { return fStartupFilePath; } ///< returns FULLPATH/mupp_startup.xml, where FULLPATH=path were the mupp_startup.xml is found
+
+  virtual void CheckLists();
+
+  virtual const PIntVector GetMarkerStyleList() const { return fMarkerStyleList; }  ///< returns the marker style list
+  virtual const PDoubleVector GetMarkerSizeList() const { return fMarkerSizeList; } ///< returns the marker size list
+  virtual const PIntVector GetColorList() const { return fColorList; }              ///< returns the color list
+
+private:
+  enum EKeyWords {eEmpty, eMarker, eColor};
+  EKeyWords       fKey; ///< xml filter key
+
+  Bool_t               fStartupFileFound; ///< startup file found flag
+  TString              fStartupFilePath;  ///< full mupp_startup.xml startup file paths
+  PIntVector           fMarkerStyleList;  ///< marker style list
+  PDoubleVector        fMarkerSizeList;   ///< marker size list
+  PIntVector           fColorList;        ///< color list
+
+  Bool_t StartupFileExists(Char_t *fln);
+
+  ClassDef(PMuppStartupHandler, 1)
+};
+
+#endif // _PMUPPSTARTUPHANDLER_H_
diff --git a/src/musredit_qt6/mupp/plotter/PMuppStartupHandlerLinkDef.h b/src/musredit_qt6/mupp/plotter/PMuppStartupHandlerLinkDef.h
new file mode 100644
index 00000000..a576e83d
--- /dev/null
+++ b/src/musredit_qt6/mupp/plotter/PMuppStartupHandlerLinkDef.h
@@ -0,0 +1,38 @@
+/***************************************************************************
+
+  PMuppStartupHandlerLinkDef.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifdef __CINT__
+
+#pragma link off all globals;
+#pragma link off all classes;
+#pragma link off all functions;
+
+#pragma link C++ class PMuppStartupHandler+;
+
+#endif
diff --git a/src/musredit_qt6/mupp/plotter/mupp_plot.cpp b/src/musredit_qt6/mupp/plotter/mupp_plot.cpp
new file mode 100644
index 00000000..a0903432
--- /dev/null
+++ b/src/musredit_qt6/mupp/plotter/mupp_plot.cpp
@@ -0,0 +1,142 @@
+/***************************************************************************
+
+  mupp_plot.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <iostream>
+
+#include <TApplication.h>
+#include <TSAXParser.h>
+#include <TROOT.h>
+
+#include "PMuppStartupHandler.h"
+#include "PMuppCanvas.h"
+
+//--------------------------------------------------------------------------
+/**
+ * @brief main
+ * @param argc
+ * @param argv
+ * @return
+ */
+int main(int argc, char *argv[])
+{
+  if (argc != 2) {
+    return -1;
+  }
+  int mupp_instance = (int)strtol(argv[1], NULL, 10);
+  if ((mupp_instance < 0) || (mupp_instance > 255)) {
+    return -2;
+  }
+
+  // read startup file
+  char startup_path_name[128];
+  TSAXParser *saxParser = new TSAXParser();
+  PMuppStartupHandler *startupHandler = new PMuppStartupHandler();
+  if (!startupHandler->StartupFileFound()) {
+    std::cerr << std::endl << ">> mupp_plot **WARNING** couldn't find " << startupHandler->GetStartupFilePath().Data();
+    std::cerr << std::endl;
+    // clean up
+    if (saxParser) {
+      delete saxParser;
+      saxParser = 0;
+    }
+    if (startupHandler) {
+      delete startupHandler;
+      startupHandler = 0;
+    }
+  } else {
+    strcpy(startup_path_name, startupHandler->GetStartupFilePath().Data());
+    saxParser->ConnectToHandler("PMuppStartupHandler", startupHandler);
+    // parsing the file as above seems to lead to problems in certain environments;
+    // use the parseXmlFile function instead (see PMuppStartupHandler.cpp for the definition)
+    Int_t status = parseXmlFile(saxParser, startup_path_name);
+    // check for parse errors
+    if (status) { // error
+      std::cerr << std::endl << ">> mupp_plot **WARNING** Reading/parsing mupp_startup.xml failed.";
+      std::cerr << std::endl << ">>                       Graph will appear with random symbols and colors!";
+      std::cerr << std::endl;
+      // clean up
+      if (saxParser) {
+        delete saxParser;
+        saxParser = 0;
+      }
+      if (startupHandler) {
+        delete startupHandler;
+        startupHandler = 0;
+      }
+    } else {
+      startupHandler->CheckLists();
+    }
+  }
+
+  TApplication app("App", &argc, argv);
+
+  Bool_t ok=kTRUE;
+  PMuppCanvas *muppCanvas = new PMuppCanvas("mupp", 10, 10, 600, 800,
+                                            startupHandler->GetMarkerStyleList(),
+                                            startupHandler->GetMarkerSizeList(),
+                                            startupHandler->GetColorList(),
+                                            mupp_instance);
+
+  if (muppCanvas != 0) {
+    if (muppCanvas->IsValid()) {
+      // connect signal/slot
+      TQObject::Connect("TCanvas", "Closed()", "PMuppCanvas", muppCanvas, "LastCanvasClosed()");
+      muppCanvas->Connect("Done(Int_t)", "TApplication", &app, "Terminate(Int_t)");
+    } else {
+      std::cerr << std::endl << ">> mupp_plot **SEVERE ERROR** invoke object is invalid, will quit.";
+      std::cerr << std::endl;
+      ok = false;
+    }
+  } else {
+    std::cerr << std::endl << ">> mupp_plot **SEVERE ERROR** Couldn't invoke all necessary objects, will quit.";
+    std::cerr << std::endl;
+    ok = false;
+  }
+
+
+  // check that everything is ok
+  if (ok)
+    app.Run(true); // true needed that Run will return after quit so that cleanup works
+
+  // clean up
+  if (saxParser) {
+    delete saxParser;
+    saxParser = 0;
+  }
+  if (startupHandler) {
+    delete startupHandler;
+    startupHandler = 0;
+  }
+  if (muppCanvas) {
+    delete muppCanvas;
+    muppCanvas = 0;
+  }
+
+  return 0;
+}
diff --git a/src/musredit_qt6/mupp/plotter/mupp_plot.h b/src/musredit_qt6/mupp/plotter/mupp_plot.h
new file mode 100644
index 00000000..f24d867a
--- /dev/null
+++ b/src/musredit_qt6/mupp/plotter/mupp_plot.h
@@ -0,0 +1,93 @@
+/***************************************************************************
+ 
+ mupp_plot.h
+ 
+ Author: Andreas Suter
+ e-mail: andreas.suter@psi.ch
+ 
+ ***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _MUPP_PLOT_H_
+#define _MUPP_PLOT_H_
+
+#include <vector>
+#include <utility>
+
+#include <TROOT.h>
+#include <TString.h>
+
+//-------------------------------------------------------------
+/**
+ * <p>typedef to make to code more readable. Definition of a bool vector.
+ */
+typedef std::vector<Bool_t> PBoolVector;
+
+//-------------------------------------------------------------
+/**
+ * <p>typedef to make to code more readable. Definition of an unsigned int vector
+ */
+typedef std::vector<UInt_t> PUIntVector;
+
+//-------------------------------------------------------------
+/**
+ * <p>typedef to make to code more readable. Definition of an int vector
+ */
+typedef std::vector<Int_t> PIntVector;
+
+//-------------------------------------------------------------
+/**
+ * <p>typedef to make to code more readable. Definition of an int pair
+ */
+typedef std::pair<Int_t, Int_t> PIntPair;
+
+//-------------------------------------------------------------
+/**
+ * <p>typedef to make to code more readable. Definition of an int pair vector
+ */
+typedef std::vector<PIntPair> PIntPairVector;
+
+//-------------------------------------------------------------
+/**
+ * <p>typedef to make to code more readable. Definition of a double vector
+ */
+typedef std::vector<Double_t> PDoubleVector;
+
+//-------------------------------------------------------------
+/**
+ * <p>typedef to make to code more readable. Definition of a double pair
+ */
+typedef std::pair<Double_t, Double_t> PDoublePair;
+
+//-------------------------------------------------------------
+/**
+ * <p>typedef to make to code more readable. Definition of a double pair vector
+ */
+typedef std::vector<PDoublePair> PDoublePairVector;
+
+//-------------------------------------------------------------
+/**
+ * <p>typedef to make to code more readable. Definition of a string vector
+ */
+typedef std::vector<TString> PStringVector;
+
+#endif // _MUPP_PLOT_H_
diff --git a/src/musredit_qt6/mupp/var/CMakeLists.txt b/src/musredit_qt6/mupp/var/CMakeLists.txt
new file mode 100644
index 00000000..febd4f0a
--- /dev/null
+++ b/src/musredit_qt6/mupp/var/CMakeLists.txt
@@ -0,0 +1 @@
+add_subdirectory(src)
diff --git a/src/musredit_qt6/mupp/var/include/PAnnotation.hpp b/src/musredit_qt6/mupp/var/include/PAnnotation.hpp
new file mode 100644
index 00000000..4e4467c3
--- /dev/null
+++ b/src/musredit_qt6/mupp/var/include/PAnnotation.hpp
@@ -0,0 +1,103 @@
+/***************************************************************************
+
+  PAnnotation.hpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+  Based on Joel de Guzman example on calc7,
+  see https://github.com/boostorg/spirit
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2020 by Andreas Suter                                   *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PANNOTATION_HPP_
+#define _PANNOTATION_HPP_
+
+#include <map>
+#include <boost/variant/apply_visitor.hpp>
+#include <boost/type_traits/is_base_of.hpp>
+#include <boost/mpl/bool.hpp>
+#include "PAst.hpp"
+
+namespace mupp
+{
+  ///////////////////////////////////////////////////////////////////////////////
+  //  The annotation handler links the AST to a map of iterator positions
+  //  for the purpose of subsequent semantic error handling when the
+  //  program is being compiled.
+  ///////////////////////////////////////////////////////////////////////////////
+  template <typename Iterator>
+  struct PAnnotation
+  {
+    template <typename, typename>
+    struct result { typedef void type; };
+
+    std::vector<Iterator>& iters;
+    PAnnotation(std::vector<Iterator>& iters) : iters(iters) {}
+
+    struct set_id
+    {
+      typedef void result_type;
+
+      int id;
+      set_id(int id) : id(id) {}
+
+      template <typename T>
+      void operator()(T& x) const
+      {
+        this->dispatch(x, boost::is_base_of<ast::tagged, T>());
+      }
+
+      // This will catch all nodes except those inheriting from ast::tagged
+      template <typename T>
+      void dispatch(T& x, boost::mpl::false_) const
+      {
+        // (no-op) no need for tags
+      }
+
+      // This will catch all nodes inheriting from ast::tagged
+      template <typename T>
+      void dispatch(T& x, boost::mpl::true_) const
+      {
+        x.id = id;
+      }
+    };
+
+    void operator()(ast::operand& ast, Iterator pos) const
+    {
+      int id = iters.size();
+      iters.push_back(pos);
+      boost::apply_visitor(set_id(id), ast);
+    }
+
+    void operator()(ast::assignment& ast, Iterator pos) const
+    {
+      int id = iters.size();
+      iters.push_back(pos);
+      ast.lhs.id = id;
+    }
+  };
+}
+
+#endif // _PANNOTATION_HPP_
+
diff --git a/src/musredit_qt6/mupp/var/include/PAst.hpp b/src/musredit_qt6/mupp/var/include/PAst.hpp
new file mode 100644
index 00000000..45c69115
--- /dev/null
+++ b/src/musredit_qt6/mupp/var/include/PAst.hpp
@@ -0,0 +1,204 @@
+/***************************************************************************
+
+  PAst.hpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+  Based on Joel de Guzman example on calc7,
+  see https://github.com/boostorg/spirit
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2020 by Andreas Suter                                   *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PAST_HPP_
+#define _PAST_HPP_
+
+#include <boost/config/warning_disable.hpp>
+#include <boost/variant/recursive_variant.hpp>
+#include <boost/fusion/include/adapt_struct.hpp>
+#include <boost/fusion/include/io.hpp>
+#include <boost/optional.hpp>
+#include <list>
+
+namespace mupp { namespace ast
+{
+    ///////////////////////////////////////////////////////////////////////////
+    //  The AST
+    ///////////////////////////////////////////////////////////////////////////
+    struct tagged
+    {
+      int id; // Used to annotate the AST with the iterator position.
+              // This id is used as a key to a map<int, Iterator>
+              // (not really part of the AST.)
+    };
+
+    enum optoken
+    {
+      op_plus,
+      op_minus,
+      op_times,
+      op_divide,
+      op_positive,
+      op_negative,
+    };
+
+    enum funid
+    {
+      fun_max,
+      fun_min,
+      fun_abs,
+      fun_sin,
+      fun_cos,
+      fun_tan,
+      fun_sinh,
+      fun_cosh,
+      fun_tanh,
+      fun_asin,
+      fun_acos,
+      fun_atan,
+      fun_exp,
+      fun_log,
+      fun_ln,
+      fun_sqrt
+    };
+
+    struct nil {};
+    struct unary;
+    struct expression;
+    struct function;
+    struct power;
+
+    struct variable : tagged
+    {
+      variable(std::string const& name = "") : name(name) {}
+      std::string name;
+    };
+
+    typedef boost::variant<
+            nil
+          , double
+          , variable
+          , boost::recursive_wrapper<function>
+          , boost::recursive_wrapper<power>
+          , boost::recursive_wrapper<unary>
+          , boost::recursive_wrapper<expression>
+        >
+    operand;
+
+    struct unary
+    {
+      optoken operator_;
+      operand operand_;
+    };
+
+    struct operation
+    {
+      optoken operator_;
+      operand operand_;
+    };
+
+    struct expression
+    {
+      operand first;
+      std::list<operation> rest;
+    };
+
+    struct function
+    {
+      funid func_id;
+      expression arg;
+    };
+
+    struct power
+    {
+      expression base;
+      expression pow;
+    };
+
+    struct assignment
+    {
+      variable lhs;
+      expression rhs;
+    };
+
+    struct variable_declaration
+    {
+      variable lhs;
+      boost::optional<expression> rhs;
+    };
+
+    typedef boost::variant<
+            variable_declaration
+          , assignment>
+    statement;
+
+    typedef std::list<statement> statement_list;
+
+    // print functions for debugging
+    inline std::ostream& operator<<(std::ostream& out, nil) { out << "nil"; return out; }
+    inline std::ostream& operator<<(std::ostream& out, variable const& var) { out << var.name; return out; }
+}}
+
+BOOST_FUSION_ADAPT_STRUCT(
+    mupp::ast::unary,
+    (mupp::ast::optoken, operator_)
+    (mupp::ast::operand, operand_)
+)
+
+BOOST_FUSION_ADAPT_STRUCT(
+    mupp::ast::operation,
+    (mupp::ast::optoken, operator_)
+    (mupp::ast::operand, operand_)
+)
+
+BOOST_FUSION_ADAPT_STRUCT(
+    mupp::ast::expression,
+    (mupp::ast::operand, first)
+    (std::list<mupp::ast::operation>, rest)
+)
+
+BOOST_FUSION_ADAPT_STRUCT(
+    mupp::ast::function,
+    (mupp::ast::funid, func_id)
+    (mupp::ast::expression, arg)
+)
+
+BOOST_FUSION_ADAPT_STRUCT(
+    mupp::ast::power,
+    (mupp::ast::expression, base)
+    (mupp::ast::expression, pow)
+)
+
+BOOST_FUSION_ADAPT_STRUCT(
+    mupp::ast::variable_declaration,
+    (mupp::ast::variable, lhs)
+    (boost::optional<mupp::ast::expression>, rhs)
+)
+
+BOOST_FUSION_ADAPT_STRUCT(
+    mupp::ast::assignment,
+    (mupp::ast::variable, lhs)
+    (mupp::ast::expression, rhs)
+)
+
+#endif // _PAST_HPP_
diff --git a/src/musredit_qt6/mupp/var/include/PErrorHandler.hpp b/src/musredit_qt6/mupp/var/include/PErrorHandler.hpp
new file mode 100644
index 00000000..7c127ed2
--- /dev/null
+++ b/src/musredit_qt6/mupp/var/include/PErrorHandler.hpp
@@ -0,0 +1,118 @@
+/***************************************************************************
+
+  PErrorHandler.hpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+  Based on Joel de Guzman example on calc7,
+  see https://github.com/boostorg/spirit
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2020 by Andreas Suter                                   *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PERROR_HANDLER_HPP_
+#define _PERROR_HANDLER_HPP_
+
+#include <iostream>
+#include <fstream>
+#include <string>
+#include <vector>
+
+namespace mupp
+{
+  ///////////////////////////////////////////////////////////////////////////////
+  //  The error handler
+  ///////////////////////////////////////////////////////////////////////////////
+  template <typename Iterator>
+  struct PErrorHandler
+  {
+     template <typename, typename, typename>
+     struct result { typedef void type; };
+
+     PErrorHandler(Iterator first, Iterator last)
+          : first(first), last(last) {}
+
+     template <typename Message, typename What>
+     void operator()(
+       Message const& message,
+       What const& what,
+       Iterator err_pos) const
+     {
+       int line;
+       Iterator line_start = get_pos(err_pos, line);
+       const char *homeStr = getenv("HOME");
+       char fln[1024];
+       sprintf(fln, "%s/.musrfit/mupp/mupp_err.log", homeStr);
+       std::ofstream fout(fln, std::ofstream::app);
+       if (err_pos != last) {
+         fout << message << what << ':' << std::endl;
+         fout << get_line(line_start) << std::endl;
+         for (; line_start != err_pos; ++line_start)
+           fout << ' ';
+         fout << "^~~" << std::endl;
+       } else {
+         fout << "**ERROR** Unexpected end of file. ";
+         fout << message << what << " line " << line << std::endl;
+       }
+     }
+
+     Iterator get_pos(Iterator err_pos, int& line) const
+     {
+       line = 1;
+       Iterator i = first;
+       Iterator line_start = first;
+       while (i != err_pos) {
+         bool eol = false;
+         if (i != err_pos && *i == '\r') { // CR
+           eol = true;
+           line_start = ++i;
+         }
+         if (i != err_pos && *i == '\n') { // LF
+            eol = true;
+            line_start = ++i;
+         }
+         if (eol)
+           ++line;
+         else
+           ++i;
+       }
+       return line_start;
+    }
+
+    std::string get_line(Iterator err_pos) const
+    {
+      Iterator i = err_pos;
+      // position i to the next EOL
+      while (i != last && (*i != '\r' && *i != '\n'))
+        ++i;
+      return std::string(err_pos, i);
+    }
+
+    Iterator first;
+    Iterator last;
+    std::vector<Iterator> iters;
+  };
+}
+
+#endif //_PERROR_HANDLER_HPP_
+
diff --git a/src/musredit_qt6/mupp/var/include/PExpression.hpp b/src/musredit_qt6/mupp/var/include/PExpression.hpp
new file mode 100644
index 00000000..f8d3de0e
--- /dev/null
+++ b/src/musredit_qt6/mupp/var/include/PExpression.hpp
@@ -0,0 +1,83 @@
+/***************************************************************************
+
+  PExpression.hpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+  Based on Joel de Guzman example on calc7,
+  see https://github.com/boostorg/spirit
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2020 by Andreas Suter                                   *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PEXPRESSION_HPP_
+#define _PEXPRESSION_HPP_
+
+///////////////////////////////////////////////////////////////////////////////
+// Spirit v2.5 allows you to suppress automatic generation
+// of predefined terminals to speed up complation. With
+// BOOST_SPIRIT_NO_PREDEFINED_TERMINALS defined, you are
+// responsible in creating instances of the terminals that
+// you need (e.g. see qi::uint_type uint_ below).
+#define BOOST_SPIRIT_NO_PREDEFINED_TERMINALS
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment this if you want to enable debugging
+// #define BOOST_SPIRIT_QI_DEBUG
+///////////////////////////////////////////////////////////////////////////////
+
+#include <boost/spirit/include/qi.hpp>
+#include "PAst.hpp"
+#include "PErrorHandler.hpp"
+#include "PSkipper.hpp"
+#include <vector>
+
+namespace mupp { namespace parser
+{
+    namespace qi = boost::spirit::qi;
+    namespace ascii = boost::spirit::ascii;
+
+    ///////////////////////////////////////////////////////////////////////////////
+    //  The expression grammar
+    ///////////////////////////////////////////////////////////////////////////////
+    template <typename Iterator>
+    struct PExpression : qi::grammar<Iterator, ast::expression(), PSkipper<Iterator> >
+    {
+        PExpression(PErrorHandler<Iterator>& error_handler);
+
+        qi::symbols<char, ast::optoken> additive_op, multiplicative_op, unary_op;
+        qi::symbols<char, ast::funid> fun_tok;
+
+        qi::rule<Iterator, ast::expression(), PSkipper<Iterator> > expr;
+        qi::rule<Iterator, ast::expression(), PSkipper<Iterator> > additive_expr;
+        qi::rule<Iterator, ast::expression(), PSkipper<Iterator> > multiplicative_expr;
+        qi::rule<Iterator, ast::operand(), PSkipper<Iterator> > unary_expr;
+        qi::rule<Iterator, ast::operand(), PSkipper<Iterator> > primary_expr;
+        qi::rule<Iterator, std::string(), PSkipper<Iterator> > identifier;
+    };
+}}
+
+#endif // _PEXPRESSION_HPP_
+
+
diff --git a/src/musredit_qt6/mupp/var/include/PExpressionDef.hpp b/src/musredit_qt6/mupp/var/include/PExpressionDef.hpp
new file mode 100644
index 00000000..125df780
--- /dev/null
+++ b/src/musredit_qt6/mupp/var/include/PExpressionDef.hpp
@@ -0,0 +1,162 @@
+/***************************************************************************
+
+  PExpressionDef.hpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+  Based on Joel de Guzman example on calc7,
+  see https://github.com/boostorg/spirit
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2020 by Andreas Suter                                   *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include "PExpression.hpp"
+#include "PErrorHandler.hpp"
+#include "PAnnotation.hpp"
+#include <boost/spirit/include/phoenix_function.hpp>
+
+namespace mupp { namespace parser
+{
+  template <typename Iterator>
+  PExpression<Iterator>::PExpression(PErrorHandler<Iterator>& error_handler)
+      : PExpression::base_type(expr)
+  {
+    qi::_1_type _1;
+    qi::_2_type _2;
+    qi::_3_type _3;
+    qi::_4_type _4;
+
+    qi::char_type char_;
+    qi::double_type double_;
+    qi::_val_type _val;
+    qi::raw_type raw;
+    qi::lexeme_type lexeme;
+    qi::alpha_type alpha;
+    qi::alnum_type alnum;
+
+    using qi::on_error;
+    using qi::on_success;
+    using qi::fail;
+    using boost::phoenix::function;
+
+    typedef function<mupp::PErrorHandler<Iterator> > error_handler_function;
+    typedef function<mupp::PAnnotation<Iterator> > annotation_function;
+
+    ///////////////////////////////////////////////////////////////////////
+    // Tokens
+    additive_op.add
+        ("+", ast::op_plus)
+        ("-", ast::op_minus)
+        ;
+
+    multiplicative_op.add
+        ("*", ast::op_times)
+        ("/", ast::op_divide)
+        ;
+
+    unary_op.add
+        ("+", ast::op_positive)
+        ("-", ast::op_negative)
+        ;
+
+    fun_tok.add
+        ("max", ast::fun_max)
+        ("min", ast::fun_min)
+        ("abs", ast::fun_abs)
+        ("sin", ast::fun_sin)
+        ("cos", ast::fun_cos)
+        ("tan", ast::fun_tan)
+        ("sinh", ast::fun_sinh)
+        ("cosh", ast::fun_cosh)
+        ("tanh", ast::fun_tanh)
+        ("asin", ast::fun_asin)
+        ("acos", ast::fun_acos)
+        ("atan", ast::fun_atan)
+        ("exp", ast::fun_exp)
+        ("log", ast::fun_log)
+        ("ln",  ast::fun_ln)
+        ("sqrt", ast::fun_sqrt)
+        ;
+
+    ///////////////////////////////////////////////////////////////////////
+    // Grammar
+    expr =
+        additive_expr.alias()
+        ;
+
+    additive_expr =
+        multiplicative_expr
+        >> *(additive_op > multiplicative_expr)
+           ;
+
+    multiplicative_expr =
+        unary_expr
+        >> *(multiplicative_op > unary_expr)
+           ;
+
+    unary_expr =
+        primary_expr
+        |   (unary_op > primary_expr)
+        ;
+
+    primary_expr =
+        double_
+        |   identifier
+        |   fun_tok > '(' > expr > ')'
+        |   "pow(" > expr > ',' > expr > ')'
+        |   '(' > expr > ')'
+        ;
+
+    identifier =
+        raw[lexeme['$' >> *(alnum | '_')]]
+        ;
+
+    // name all the rules
+    additive_expr.name("additive_expr");
+    multiplicative_expr.name("multiplicative_expr");
+    unary_expr.name("unary_expr");
+    primary_expr.name("primary_expr");
+    identifier.name("identifier");
+
+    // Debugging and error handling and reporting support.
+    BOOST_SPIRIT_DEBUG_NODES(
+      (expr)
+      (additive_expr)
+      (multiplicative_expr)
+      (unary_expr)
+      (primary_expr)
+      (identifier)
+     );
+
+    // Error handling: on error in expr, call error_handler.
+    on_error<fail>(expr,
+         error_handler_function(error_handler)(
+         "**ERROR** Expecting ", _4, _3));
+
+    // Annotation: on success in primary_expr, call annotation.
+    on_success(primary_expr,
+         annotation_function(error_handler.iters)(_val, _1));
+  }
+}}
+
+
diff --git a/src/musredit_qt6/mupp/var/include/PProgram.hpp b/src/musredit_qt6/mupp/var/include/PProgram.hpp
new file mode 100644
index 00000000..0eaa2aa1
--- /dev/null
+++ b/src/musredit_qt6/mupp/var/include/PProgram.hpp
@@ -0,0 +1,159 @@
+/***************************************************************************
+
+  PProgram.hpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+  Based on Joel de Guzman example on calc7,
+  see https://github.com/boostorg/spirit
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2020 by Andreas Suter                                   *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PPROGRAM_HPP_
+#define _PPROGRAM_HPP_
+
+#include <string>
+#include <vector>
+#include <map>
+
+#include "PAst.hpp"
+#include "PErrorHandler.hpp"
+
+#include <boost/function.hpp>
+#include <boost/shared_ptr.hpp>
+#include <boost/spirit/include/phoenix_core.hpp>
+#include <boost/spirit/include/phoenix_function.hpp>
+#include <boost/spirit/include/phoenix_operator.hpp>
+
+namespace mupp { namespace prog {
+    ///////////////////////////////////////////////////////////////////////////
+    //  Variable Handler
+    ///////////////////////////////////////////////////////////////////////////
+    class PVarHandler
+    {
+      public:
+        PVarHandler() : fName("") {}
+
+        void SetName(std::string name) { fName = name; }
+        void SetValue(std::vector<double> &dval) { fValue = dval; }
+        void SetValue(double dval, unsigned idx);
+        void SetError(std::vector<double> &dval) { fError = dval; }
+        void SetError(double dval, unsigned idx);
+
+        std::string GetName() { return fName; }
+        unsigned int GetSize() { return (fValue.size() == fError.size()) ? fValue.size() : 0; }
+        std::vector<double> GetValue() { return fValue; }
+        double GetValue(unsigned int idx) { return (idx < fValue.size()) ? fValue[idx] : 0; }
+        std::vector<double> GetError() { return fError; }
+        double GetError(unsigned int idx) { return (idx < fError.size()) ? fError[idx] : 0; }
+
+      private:
+        std::string fName;
+        std::vector<double> fValue;
+        std::vector<double> fError;
+    };
+
+    ///////////////////////////////////////////////////////////////////////////
+    //  Program Semantic Analysis
+    ///////////////////////////////////////////////////////////////////////////
+    struct PProgram
+    {
+        typedef bool result_type;
+
+        template <typename PErrorHandler>
+        PProgram(PErrorHandler& error_handler_)
+        {
+          using namespace boost::phoenix::arg_names;
+          namespace phx = boost::phoenix;
+          using boost::phoenix::function;
+           error_handler = function<PErrorHandler>(error_handler_)(
+              "**ERROR** ", _2, phx::cref(error_handler_.iters)[_1]);
+        }
+
+        bool operator()(ast::nil) { BOOST_ASSERT(0); return false; }
+        bool operator()(double x);
+        bool operator()(ast::assignment const &x);
+        bool operator()(ast::expression const &x);
+        bool operator()(ast::function const &x);
+        bool operator()(ast::operation const &x);
+        bool operator()(ast::power const &x);
+        bool operator()(ast::statement const &x);
+        bool operator()(ast::statement_list const &x);
+        bool operator()(ast::unary const &x);
+        bool operator()(ast::variable const &x);
+        bool operator()(ast::variable_declaration const &x);
+
+        void add_predef_var_values(const std::string &name,
+                                   std::vector<double> &val,
+                                   std::vector<double> &err);
+
+        void add_var(std::string const& name);
+        bool find_var(std::string const &name);
+        bool find_var(std::string const &name, unsigned int &idx);
+        std::string pos_to_var(std::string const &name, bool &ok);
+
+        std::vector<PVarHandler> getVars() { return fVariable; }
+
+      private:
+        std::vector<PVarHandler> fVariable;
+        std::map<int, std::string> fVarPos;
+
+        boost::function<
+            void(int tag, std::string const& what)>
+        error_handler;
+    };
+
+    ///////////////////////////////////////////////////////////////////////////
+    //  Program Evaluation
+    ///////////////////////////////////////////////////////////////////////////
+    struct PProgEval
+    {
+        typedef std::vector<double> result_type;
+
+        PProgEval(std::vector<PVarHandler> var) : fVariable(var) {}
+
+        std::vector<double> operator()(ast::nil);
+        std::vector<double> operator()(double x);
+        std::vector<double> operator()(ast::assignment const &x);
+        std::vector<double> operator()(ast::expression const &x);
+        std::vector<double> operator()(ast::function const &x);
+        std::vector<double> operator()(ast::operation const &x, std::vector<double> lhs);
+        std::vector<double> operator()(ast::power const &x);
+        std::vector<double> operator()(ast::statement const &x);
+        std::vector<double> operator()(ast::statement_list const &x);
+        std::vector<double> operator()(ast::unary const &x);
+        std::vector<double> operator()(ast::variable const &x);
+        std::vector<double> operator()(ast::variable_declaration const &x);
+
+        PVarHandler getVar(const std::string name, bool &ok);
+        void print_result();
+
+      private:
+        std::vector<PVarHandler> fVariable;
+
+        unsigned int find_var(std::string const &name);
+    };
+}}
+
+#endif // _PPROGRAM_HPP_
diff --git a/src/musredit_qt6/mupp/var/include/PSkipper.hpp b/src/musredit_qt6/mupp/var/include/PSkipper.hpp
new file mode 100644
index 00000000..5a8d103b
--- /dev/null
+++ b/src/musredit_qt6/mupp/var/include/PSkipper.hpp
@@ -0,0 +1,73 @@
+/***************************************************************************
+
+  PSkipper.hpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+  Based on Joel de Guzman example on a mini_c,
+  see https://github.com/boostorg/spirit
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2020 by Andreas Suter                                   *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PSKIPPER_HPP_
+#define _PSKIPPER_HPP_
+
+#include <boost/spirit/include/qi.hpp>
+
+namespace mupp { namespace parser
+{
+    namespace qi = boost::spirit::qi;
+    namespace ascii = boost::spirit::ascii;
+
+    ///////////////////////////////////////////////////////////////////////////////
+    //  The skipper grammar
+    ///////////////////////////////////////////////////////////////////////////////
+    template <typename Iterator>
+    struct PSkipper : qi::grammar<Iterator>
+    {
+        PSkipper() : PSkipper::base_type(start)
+        {
+            qi::char_type char_;
+            qi::lit_type lit;
+            qi::eol_type eol;
+            ascii::space_type space;
+            ascii::print_type print;
+
+            single_line_comment = (lit('%') | lit('#') | lit("//")) >> *print >> eol;
+
+            start =
+                    space                               // tab/space/cr/lf
+                |   "/*" >> *(char_ - "*/") >> "*/"     // C-style comments
+                |   single_line_comment
+                ;
+        }
+
+        qi::rule<Iterator> single_line_comment;
+        qi::rule<Iterator> start;
+    };
+}}
+
+#endif // _PSKIPPER_HPP_
+
+
diff --git a/src/musredit_qt6/mupp/var/include/PStatement.hpp b/src/musredit_qt6/mupp/var/include/PStatement.hpp
new file mode 100644
index 00000000..ccf5e7f9
--- /dev/null
+++ b/src/musredit_qt6/mupp/var/include/PStatement.hpp
@@ -0,0 +1,58 @@
+/***************************************************************************
+
+  PStatement.hpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+  Based on Joel de Guzman example on calc7,
+  see https://github.com/boostorg/spirit
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2020 by Andreas Suter                                   *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PSTATEMENT_HPP_
+#define _PSTATEMENT_HPP_
+
+#include "PExpression.hpp"
+
+namespace mupp { namespace parser
+{
+  ///////////////////////////////////////////////////////////////////////////////
+  //  The statement grammar
+  ///////////////////////////////////////////////////////////////////////////////
+  template <typename Iterator>
+  struct PStatement : qi::grammar<Iterator, ast::statement_list(), PSkipper<Iterator> >
+  {
+    PStatement(PErrorHandler<Iterator>& error_handler);
+
+    PExpression<Iterator> expr;
+    qi::rule<Iterator, ast::statement_list(), PSkipper<Iterator> > statement_list;
+    qi::rule<Iterator, ast::variable_declaration(), PSkipper<Iterator> > variable_declaration;
+    qi::rule<Iterator, ast::assignment(), PSkipper<Iterator> > assignment;
+    qi::rule<Iterator, std::string(), PSkipper<Iterator> > identifier;
+  };
+}}
+
+#endif // _PSTATEMENT_HPP_
+
+
diff --git a/src/musredit_qt6/mupp/var/include/PStatementDef.hpp b/src/musredit_qt6/mupp/var/include/PStatementDef.hpp
new file mode 100644
index 00000000..0d114e3a
--- /dev/null
+++ b/src/musredit_qt6/mupp/var/include/PStatementDef.hpp
@@ -0,0 +1,107 @@
+/***************************************************************************
+
+  PStatementDef.hpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+  Based on Joel de Guzman example on calc7,
+  see https://github.com/boostorg/spirit
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2020 by Andreas Suter                                   *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include "PStatement.hpp"
+#include "PErrorHandler.hpp"
+#include "PAnnotation.hpp"
+
+namespace mupp { namespace parser
+{
+  template <typename Iterator>
+  PStatement<Iterator>::PStatement(PErrorHandler<Iterator>& error_handler)
+      : PStatement::base_type(statement_list), expr(error_handler)
+  {
+    qi::_1_type _1;
+    qi::_2_type _2;
+    qi::_3_type _3;
+    qi::_4_type _4;
+
+    qi::_val_type _val;
+    qi::raw_type raw;
+    qi::lexeme_type lexeme;
+    qi::alpha_type alpha;
+    qi::alnum_type alnum;
+
+    using qi::on_error;
+    using qi::on_success;
+    using qi::fail;
+    using boost::phoenix::function;
+
+    typedef function<mupp::PErrorHandler<Iterator> > error_handler_function;
+    typedef function<mupp::PAnnotation<Iterator> > annotation_function;
+
+    statement_list =
+        +(variable_declaration | assignment)
+        ;
+
+    identifier =
+        raw[lexeme[(alpha | '_') >> *(alnum | '_')]]
+        ;
+
+    variable_declaration =
+        lexeme["var" >> !(alnum | '_')] // make sure we have whole words
+        >   identifier
+        >   -('=' > expr)
+        ;
+
+    assignment =
+        identifier
+        >   '='
+        >   expr
+        ;
+
+    // name all the rules
+    statement_list.name("statement_list");
+    identifier.name("identifier");
+    variable_declaration.name("variable_declaration");
+    assignment.name("assignment");
+
+    // Debugging and error handling and reporting support.
+    BOOST_SPIRIT_DEBUG_NODES(
+      (statement_list)
+      (identifier)
+      (variable_declaration)
+      (assignment)
+    );
+
+    // Error handling: on error in statement_list, call error_handler.
+    on_error<fail>(statement_list,
+       error_handler_function(error_handler)(
+       "**ERROR** Expecting ", _4, _3));
+
+    // Annotation: on success in assignment, call annotation.
+    on_success(assignment,
+       annotation_function(error_handler.iters)(_val, _1));
+  }
+}}
+
+
diff --git a/src/musredit_qt6/mupp/var/include/PVarHandler.h b/src/musredit_qt6/mupp/var/include/PVarHandler.h
new file mode 100644
index 00000000..2ba4f1c9
--- /dev/null
+++ b/src/musredit_qt6/mupp/var/include/PVarHandler.h
@@ -0,0 +1,69 @@
+/***************************************************************************
+
+  PVarHandler.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PVARHANDLER_H_
+#define _PVARHANDLER_H_
+
+#include <string>
+#include <vector>
+
+#include <QString>
+
+#include "Pmupp.h"
+#include "PAst.hpp"
+#include "PProgram.hpp"
+
+class PVarHandler {
+  public:
+    PVarHandler();
+    PVarHandler(PmuppCollection *coll, std::string parse_str, std::string var_name="");
+
+    bool isValid() { return fIsValid; }
+    QString getCollName() { return fColl->GetName(); }
+    QString getVarName() { return QString(fVarName.c_str()); }
+    std::vector<double> getValues();
+    std::vector<double> getErrors();
+
+  private:
+    PmuppCollection *fColl; ///< collection needed for parsing and evaluation
+    std::string fParseStr; ///< the variable input to be parsed
+    std::string fVarName;  ///< variable name
+    mupp::prog::PVarHandler fVar; ///< values of the evaluation
+
+    bool fIsValid;
+    mupp::ast::statement_list fAst; ///< the AST
+
+    void injectPredefVariables();
+
+    std::string getVarName(int idx);
+    std::vector<double> getData(int idx);
+    std::vector<double> getDataErr(int idx);
+};
+
+#endif //_PVARHANDLER_H_
diff --git a/src/musredit_qt6/mupp/var/src/CMakeLists.txt b/src/musredit_qt6/mupp/var/src/CMakeLists.txt
new file mode 100644
index 00000000..90abf78f
--- /dev/null
+++ b/src/musredit_qt6/mupp/var/src/CMakeLists.txt
@@ -0,0 +1,7 @@
+target_sources(mupp
+  PRIVATE 
+    ${CMAKE_CURRENT_LIST_DIR}/PVarHandler.cpp
+    ${CMAKE_CURRENT_LIST_DIR}/PExpression.cpp
+    ${CMAKE_CURRENT_LIST_DIR}/PProgram.cpp
+    ${CMAKE_CURRENT_LIST_DIR}/PStatement.cpp
+)
diff --git a/src/musredit_qt6/mupp/var/src/PExpression.cpp b/src/musredit_qt6/mupp/var/src/PExpression.cpp
new file mode 100644
index 00000000..351b5145
--- /dev/null
+++ b/src/musredit_qt6/mupp/var/src/PExpression.cpp
@@ -0,0 +1,40 @@
+/***************************************************************************
+
+  PExpression.hpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+  Based on Joel de Guzman example on calc7,
+  see https://github.com/boostorg/spirit
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2020 by Andreas Suter                                   *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#if defined(_MSC_VER)
+# pragma warning(disable: 4345)
+#endif
+
+#include "PExpressionDef.hpp"
+
+typedef std::string::const_iterator iterator_type;
+template struct mupp::parser::PExpression<iterator_type>;
diff --git a/src/musredit_qt6/mupp/var/src/PProgram.cpp b/src/musredit_qt6/mupp/var/src/PProgram.cpp
new file mode 100644
index 00000000..290761d4
--- /dev/null
+++ b/src/musredit_qt6/mupp/var/src/PProgram.cpp
@@ -0,0 +1,702 @@
+/***************************************************************************
+
+  PProgram.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+  Based on Joel de Guzman example on calc7,
+  see https://github.com/boostorg/spirit
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2020 by Andreas Suter                                   *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include "PProgram.hpp"
+
+#include <boost/foreach.hpp>
+#include <boost/variant/apply_visitor.hpp>
+#include <boost/assert.hpp>
+#include <boost/lexical_cast.hpp>
+#include <boost/algorithm/string.hpp>
+#include <set>
+
+namespace mupp { namespace prog {
+    void PVarHandler::SetValue(double dval, unsigned idx)
+    {
+       if (idx >= fValue.size()) {
+         std::cerr << "**ERROR** SetValue: idx=" << idx << " is out-of-range." << std::endl;
+         return;
+       }
+       fValue[idx] = dval;
+    }
+
+    void PVarHandler::SetError(double dval, unsigned idx)
+    {
+       if (idx >= fError.size()) {
+         std::cerr << "**ERROR** SetError: idx=" << idx << " is out-of-range." << std::endl;
+         return;
+       }
+       fError[idx] = dval;
+    }
+
+    bool PProgram::operator()(double x)
+    {
+      return true;
+    }
+
+    bool PProgram::operator()(ast::assignment const &x)
+    {
+      // check that the variable exists
+      if (!find_var(x.lhs.name)) {
+        error_handler(0, "Undeclared variable: " + x.lhs.name);
+        return false;
+      }
+
+      if (!(*this)(x.rhs)) {
+        std::cout << "**SEM ERROR** in var assignment of var: " << x.lhs.name << std::endl;
+        std::cout << "              rhs is missing or has an error." << std::endl;
+        return false;
+      }
+
+      return true;
+    }
+
+    bool PProgram::operator()(ast::expression const &x)
+    {
+      if (!boost::apply_visitor(*this, x.first))
+        return false;
+
+      BOOST_FOREACH(ast::operation const& oper, x.rest) {
+        if (!(*this)(oper))
+          return false;
+      }
+
+      return true;
+    }
+
+    bool PProgram::operator()(ast::function const &x)
+    {
+      switch (x.func_id) {
+        case ast::fun_max:
+        case ast::fun_min:
+        case ast::fun_abs:
+        case ast::fun_sin:
+        case ast::fun_cos:
+        case ast::fun_tan:
+        case ast::fun_sinh:
+        case ast::fun_cosh:
+        case ast::fun_tanh:
+        case ast::fun_asin:
+        case ast::fun_acos:
+        case ast::fun_atan:
+        case ast::fun_exp:
+        case ast::fun_log:
+        case ast::fun_ln:
+        case ast::fun_sqrt:
+          break;
+        default:
+          BOOST_ASSERT(0);
+          return false;
+      }
+
+      if (!(*this)(x.arg)) {
+        std::cout << "**SEM ERROR** in function: arg is missing or has an error." << std::endl;
+        return false;
+      }
+
+      return true;
+    }
+
+    bool PProgram::operator()(ast::operation const &x)
+    {
+      if (!boost::apply_visitor(*this, x.operand_))
+        return false;
+
+      switch (x.operator_) {
+        case ast::op_plus:
+          break;
+        case ast::op_minus:
+          break;
+        case ast::op_times:
+          break;
+        case ast::op_divide:
+          break;
+        case ast::op_positive:
+          break;
+        case ast::op_negative:
+          break;
+        default:
+          BOOST_ASSERT(0);
+          return false;
+      }
+
+      return true;
+    }
+
+    bool PProgram::operator()(ast::power const &x)
+    {
+      if (!(*this)(x.base)) {
+        std::cout << "**SEM ERROR** in power: base argument is missing or has an error." << std::endl;
+        return false;
+      }
+
+      if (!(*this)(x.pow)) {
+        std::cout << "**SEM ERROR** in power: power argument is missing or has an error." << std::endl;
+        return false;
+      }
+
+      return true;
+    }
+
+    bool PProgram::operator()(ast::statement const &x)
+    {
+      return boost::apply_visitor(*this, x);
+    }
+
+    bool PProgram::operator()(ast::statement_list const &x)
+    {
+      BOOST_FOREACH(ast::statement const& s, x) {
+        if (!(*this)(s))
+          return false;
+      }
+      return true;
+    }
+
+    bool PProgram::operator()(ast::unary const &x)
+    {
+      if (!boost::apply_visitor(*this, x.operand_))
+        return false;
+
+      switch (x.operator_) {
+        case ast::op_negative:
+          break;
+        case ast::op_positive:
+          break;
+        default:
+          BOOST_ASSERT(0);
+          return false;
+      }
+
+      return true;
+    }
+
+    bool PProgram::operator()(ast::variable const &x)
+    {
+      bool ok(false);
+      std::string var_name;
+
+      var_name = pos_to_var(x.name, ok);
+      if (!ok) {
+        error_handler(0, "Position variable out-of-range: " + x.name);
+        return false;
+      }
+
+      if (!find_var(var_name)) {
+        error_handler(0, "Undeclared variable: " + var_name);
+        return false;
+      }
+
+      return true;
+    }
+
+    bool PProgram::operator()(ast::variable_declaration const &x)
+    {
+      if (find_var(x.lhs.name)) {
+        error_handler(0, "Duplicate variable: " + x.lhs.name);
+        return false;
+      }
+
+      if (x.rhs) { // if there's a RHS initializer
+        bool r = (*this)(*x.rhs);
+        if (r) { // don't add the variable if the RHS fails
+          add_var(x.lhs.name);
+        } else {
+          std::cout << "**SEM ERROR** rhs of var decl, name: " << x.lhs.name << ", failed" << std::endl;
+          return r;
+        }
+      } else {
+        add_var(x.lhs.name);
+      }
+
+      return true;
+    }
+
+    void PProgram::add_predef_var_values(const std::string &name,
+                                         std::vector<double> &val,
+                                         std::vector<double> &err)
+    {
+      unsigned int idx;
+      if (!find_var(name, idx)) {
+        std::cerr << "**ERROR** couldn't find pre-def variable : " << name << std::endl;
+        return;
+      }
+
+      fVariable[idx].SetValue(val);
+      fVariable[idx].SetError(err);
+    }
+
+    void PProgram::add_var(std::string const& name)
+    {
+      PVarHandler var;
+      var.SetName(name);
+      fVariable.push_back(var);
+      // add map var <-> pos
+      std::size_t n = fVarPos.size();
+      fVarPos[n] = name;
+    }
+
+    bool PProgram::find_var(std::string const &name)
+    {
+      unsigned int idx;
+      return find_var(name, idx);
+    }
+
+    bool PProgram::find_var(std::string const &name, unsigned int &idx)
+    {
+      bool result=false;
+
+      // remove leading '$' of identifier
+      std::string id("");
+      if (name[0] == '$')
+        id = name.substr(1);
+      else
+        id = name;
+
+      for (unsigned int i=0; i<fVariable.size(); i++) {
+        if (id == fVariable[i].GetName()) {
+          idx = i;
+          result = true;
+          break;
+        }
+      }
+
+      return result;
+    }
+
+    std::string PProgram::pos_to_var(std::string const &name, bool &ok)
+    {
+      std::string result("??");
+      ok = true;
+
+      // remove leading '$' if present
+      if (name[0] == '$')
+        result = name.substr(1);
+      else
+        result = name;
+
+      // check if number
+      char *p;
+      int num = strtol(result.c_str(), &p, 10);
+      if (*p == 0) {
+        if (num >= fVarPos.size())
+          ok = false;
+        else
+          result = fVarPos[num];
+      }
+
+      return result;
+    }
+
+
+    std::vector<double> PProgEval::operator()(ast::nil)
+    {
+      std::vector<double> result;
+      result.resize(fVariable[0].GetSize());
+
+      for (unsigned int i=0; i<result.size(); i++)
+        result[i] = 0.0;
+
+      BOOST_ASSERT(0);
+      return result;
+    }
+
+    std::vector<double> PProgEval::operator()(double x)
+    {
+      std::vector<double> result;
+      result.resize(fVariable[0].GetSize());
+
+      for (unsigned int i=0; i<result.size(); i++)
+        result[i] = x;
+
+      return result;
+    }
+
+    std::vector<double> PProgEval::operator()(ast::assignment const &x)
+    {
+      std::vector<double> result;
+      result.resize(fVariable[0].GetSize());
+
+      result = (*this)(x.rhs);
+
+      // keep all data under <varName> not <varName>Err.
+      // <varName>Err data go to <varName> error, whereas
+      // <varName> data go to <varName> value
+      std::string name = x.lhs.name;
+      bool errorVal(false);
+
+      // check for error variable
+      std::size_t pos = name.find("Err");
+      if (pos != std::string::npos) { // it is an error variable
+        name = name.substr(0, pos);
+        errorVal = true;
+      }
+
+      unsigned int idx = find_var(name);
+      if (errorVal)
+        fVariable[idx].SetError(result);
+      else
+        fVariable[idx].SetValue(result);
+
+      return result;
+    }
+
+    std::vector<double> PProgEval::operator()(ast::expression const &x)
+    {
+      std::vector<double> vec = boost::apply_visitor(*this, x.first);
+
+      BOOST_FOREACH(ast::operation const& oper, x.rest) {
+        vec = (*this)(oper, vec);
+      }
+      return vec;
+    }
+
+    std::vector<double> PProgEval::operator()(ast::function const &x)
+    {
+      std::vector<double> vec = (*this)(x.arg);
+
+      double dval;
+      switch(x.func_id) {
+        case ast::fun_max:
+          dval = -1.0e10;
+          for (unsigned int i=0; i<vec.size(); i++) {
+            if (vec[i] > dval)
+              dval = vec[i];
+          }
+          for (unsigned int i=0; i<vec.size(); i++)
+            vec[i] = dval;
+          break;
+        case ast::fun_min:
+          dval = 1.0e10;
+          for (unsigned int i=0; i<vec.size(); i++) {
+            if (vec[i] < dval)
+              dval = vec[i];
+          }
+          for (unsigned int i=0; i<vec.size(); i++)
+            vec[i] = dval;
+          break;
+        case ast::fun_abs:
+          for (unsigned int i=0; i<vec.size(); i++)
+            vec[i] = fabs(vec[i]);
+          break;
+        case ast::fun_sin:
+          for (unsigned int i=0; i<vec.size(); i++)
+            vec[i] = sin(vec[i]);
+          break;
+        case ast::fun_cos:
+          for (unsigned int i=0; i<vec.size(); i++)
+            vec[i] = cos(vec[i]);
+          break;
+        case ast::fun_tan:
+          for (unsigned int i=0; i<vec.size(); i++)
+            vec[i] = tan(vec[i]);
+          break;
+        case ast::fun_sinh:
+          for (unsigned int i=0; i<vec.size(); i++)
+            vec[i] = sinh(vec[i]);
+          break;
+        case ast::fun_cosh:
+          for (unsigned int i=0; i<vec.size(); i++)
+            vec[i] = cosh(vec[i]);
+          break;
+        case ast::fun_tanh:
+          for (unsigned int i=0; i<vec.size(); i++)
+            vec[i] = tanh(vec[i]);
+          break;
+        case ast::fun_asin:
+          for (unsigned int i=0; i<vec.size(); i++)
+            vec[i] = asin(vec[i]);
+          break;
+        case ast::fun_acos:
+          for (unsigned int i=0; i<vec.size(); i++)
+            vec[i] = acos(vec[i]);
+          break;
+        case ast::fun_atan:
+          for (unsigned int i=0; i<vec.size(); i++)
+            vec[i] = atan(vec[i]);
+          break;
+        case ast::fun_exp:
+          for (unsigned int i=0; i<vec.size(); i++)
+            vec[i] = exp(vec[i]);
+          break;
+        case ast::fun_log:
+          for (unsigned int i=0; i<vec.size(); i++) {
+            if (vec[i] <= 0.0) {
+              BOOST_ASSERT(0);
+              break;
+            } else {
+              vec[i] = log10(vec[i]);
+            }
+          }
+          break;
+        case ast::fun_ln:
+          for (unsigned int i=0; i<vec.size(); i++) {
+            if (vec[i] <= 0.0) {
+              BOOST_ASSERT(0);
+              break;
+            } else {
+              vec[i] = log(vec[i]);
+            }
+          }
+          break;
+        case ast::fun_sqrt:
+          for (unsigned int i=0; i<vec.size(); i++) {
+            if (vec[i] <= 0.0) {
+              BOOST_ASSERT(0);
+              break;
+            } else {
+              vec[i] = sqrt(vec[i]);
+            }
+          }
+          break;
+        default:
+          BOOST_ASSERT(0);
+          break;
+      }
+
+      return vec;
+    }
+
+    std::vector<double> PProgEval::operator()(ast::operation const &x, std::vector<double> lhs)
+    {
+      std::vector<double> rhs = boost::apply_visitor(*this, x.operand_);
+
+      // make sure both vectors have the same size
+      if (lhs.size() != rhs.size()) {
+        BOOST_ASSERT(0);
+        return lhs;
+      }
+
+      switch (x.operator_) {
+        case ast::op_plus:
+          for (unsigned int i=0; i<lhs.size(); i++)
+            lhs[i] = lhs[i] + rhs[i];
+          break;
+        case ast::op_minus:
+          for (unsigned int i=0; i<lhs.size(); i++)
+            lhs[i] = lhs[i] - rhs[i];
+          break;
+        case ast::op_times:
+          for (unsigned int i=0; i<lhs.size(); i++)
+            lhs[i] = lhs[i] * rhs[i];
+          break;
+        case ast::op_divide:
+          for (unsigned int i=0; i<lhs.size(); i++) {
+            if (rhs[i] == 0.0) {
+              BOOST_ASSERT(0);
+              return lhs;
+            } else {
+              lhs[i] = lhs[i] / rhs[i];
+            }
+          }
+          break;
+        default:
+          BOOST_ASSERT(0);
+          return lhs;
+      }
+
+      return lhs;
+    }
+
+    std::vector<double> PProgEval::operator()(ast::power const &x)
+    {
+      std::vector<double> baseV = (*this)(x.base);
+      std::vector<double> powV = (*this)(x.pow);
+
+      if (baseV.size() != powV.size()) {
+        BOOST_ASSERT(0);
+        return baseV;
+      }
+
+      std::vector<double> result;
+      result.resize(baseV.size());
+      for (unsigned int i=0; i<baseV.size(); i++)
+        result[i] = pow(baseV[i], powV[i]);
+
+      return result;
+    }
+
+    std::vector<double> PProgEval::operator()(ast::statement const &x)
+    {
+      // as35: not-yet-implemented
+      std::vector<double> result;
+      result.resize(fVariable[0].GetSize());
+
+      for (unsigned int i=0; i<result.size(); i++)
+        result[i] = 0.0;
+
+      boost::apply_visitor(*this, x);
+
+      return result;
+    }
+
+    std::vector<double> PProgEval::operator()(ast::statement_list const &x)
+    {
+      // as35: not-yet-implemented
+      std::vector<double> result;
+      result.resize(fVariable[0].GetSize());
+
+      for (unsigned int i=0; i<result.size(); i++)
+        result[i] = 0.0;
+
+      BOOST_FOREACH(ast::statement const& s, x) {
+        (*this)(s);
+      }
+
+      return result;
+    }
+
+    std::vector<double> PProgEval::operator()(ast::unary const &x)
+    {
+      std::vector<double> vec = boost::apply_visitor(*this, x.operand_);
+
+      if (x.operator_ == ast::op_negative) {
+        for (unsigned int i=0; i<vec.size(); i++) {
+          vec[i] *= -1.0;
+        }
+      }
+      return vec;
+    }
+
+    std::vector<double> PProgEval::operator()(ast::variable const &x)
+    {
+      std::string name = x.name;
+      bool errorVal(false);
+
+      // check for injected error variable
+      std::size_t pos = name.find("Err");
+      if (pos != std::string::npos) { // it is an error variable
+        name = name.substr(0, pos);
+        errorVal = true;
+      }
+
+      unsigned idx = find_var(name);
+
+      if (errorVal)
+        return fVariable[idx].GetError();
+      else
+        return fVariable[idx].GetValue();
+    }
+
+    std::vector<double> PProgEval::operator()(ast::variable_declaration const &x)
+    {
+      std::vector<double> result;
+      result.resize(fVariable[0].GetSize());
+
+      // keep all data under <varName> not <varName>Err.
+      // <varName>Err data go to <varName> error, whereas
+      // <varName> data go to <varName> value
+      std::string name = x.lhs.name;
+      bool errorVal(false);
+
+      // check for error variable
+      std::size_t pos = name.find("Err");
+      if (pos != std::string::npos) { // it is an error variable
+        name = name.substr(0, pos);
+        errorVal = true;
+      }
+
+      unsigned int idx = find_var(name);
+
+      if (x.rhs) { // if there's a RHS initializer
+        result = (*this)(*x.rhs);
+      } else {
+        // injected variable content
+        if (errorVal)
+          result = fVariable[idx].GetError();
+        else
+          result = fVariable[idx].GetValue();
+      }
+
+      if (errorVal)
+        fVariable[idx].SetError(result);
+      else
+        fVariable[idx].SetValue(result);
+
+      return result;
+    }
+
+    unsigned int PProgEval::find_var(std::string const &name)
+    {
+      // remove leading '$' of identifier
+      std::string id("");
+      if (name[0] == '$')
+        id = name.substr(1);
+      else
+        id = name;
+
+      unsigned idx = 0;
+      for (unsigned int i=0; i<fVariable.size(); i++) {
+        if (id == fVariable[i].GetName()) {
+          idx = i;
+          break;
+        }
+      }
+
+      return idx;
+    }
+
+    PVarHandler PProgEval::getVar(const std::string name, bool &ok)
+    {
+      PVarHandler var = fVariable[0];
+      ok = false;
+
+      for (unsigned int i=0; i<fVariable.size(); i++) {
+        if (fVariable[i].GetName() == name) {
+          var = fVariable[i];
+          ok = true;
+          break;
+        }
+      }
+
+      return var;
+    }
+
+    void PProgEval::print_result()
+    {
+      std::vector<double> val, err;
+      for (unsigned int i=0; i<fVariable.size(); i++) {
+        if (!strstr(fVariable[i].GetName().c_str(), "Err")) {
+          std::cout << "+++++" << std::endl;
+          std::cout << "var Name: " << fVariable[i].GetName() << std::endl;
+          val = fVariable[i].GetValue();
+          err = fVariable[i].GetError();
+          for (unsigned int j=0; j<val.size(); j++) {
+            if (j<err.size())
+              std::cout << "  " << j << ": " << val[j] << " +- " << err[j] << std::endl;
+            else
+              std::cout << "  " << j << ": " << val[j] << std::endl;
+          }
+        }
+      }
+      std::cout << "+++++" << std::endl;
+    }
+}}
diff --git a/src/musredit_qt6/mupp/var/src/PStatement.cpp b/src/musredit_qt6/mupp/var/src/PStatement.cpp
new file mode 100644
index 00000000..5993af45
--- /dev/null
+++ b/src/musredit_qt6/mupp/var/src/PStatement.cpp
@@ -0,0 +1,40 @@
+/***************************************************************************
+
+  PStatement.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+  Based on Joel de Guzman example on calc7,
+  see https://github.com/boostorg/spirit
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2020 by Andreas Suter                                   *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#if defined(_MSC_VER)
+# pragma warning(disable: 4345)
+#endif
+
+#include "PStatementDef.hpp"
+
+typedef std::string::const_iterator iterator_type;
+template struct mupp::parser::PStatement<iterator_type>;
diff --git a/src/musredit_qt6/mupp/var/src/PVarHandler.cpp b/src/musredit_qt6/mupp/var/src/PVarHandler.cpp
new file mode 100644
index 00000000..af0c0710
--- /dev/null
+++ b/src/musredit_qt6/mupp/var/src/PVarHandler.cpp
@@ -0,0 +1,212 @@
+/***************************************************************************
+
+  PVarHandler.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <iostream>
+
+#include "PVarHandler.h"
+
+#include "PSkipper.hpp"
+#include "PErrorHandler.hpp"
+#include "PStatement.hpp"
+#include "PProgram.hpp"
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PVarHandler::PVarHandler
+ */
+PVarHandler::PVarHandler() :
+  fColl(nullptr), fParseStr(""), fVarName(""), fIsValid(false)
+{
+  // nothing to be done here
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PVarHandler::PVarHandler
+ */
+PVarHandler::PVarHandler(PmuppCollection *coll, std::string parse_str, std::string var_name) :
+  fColl(coll), fParseStr(parse_str), fVarName(var_name), fIsValid(false)
+{
+  injectPredefVariables();
+
+  typedef std::string::const_iterator iterator_type;
+  iterator_type iter = fParseStr.begin();
+  iterator_type end = fParseStr.end();
+
+  mupp::PErrorHandler<iterator_type> error_handler(iter, end);   // the error handler
+  mupp::parser::PStatement<iterator_type> parser(error_handler); // the parser
+  mupp::prog::PProgram prog(error_handler); // our compiler, and exec
+  mupp::parser::PSkipper<iterator_type> skipper; // the skipper parser
+
+  // perform the parsing
+  bool success = phrase_parse(iter, end, parser, skipper, fAst);
+  if (success && iter == end) {
+    if (prog(fAst)) { // semantic analysis
+      std::vector<double> data, dataErr;
+      for (unsigned int i=0; i<fColl->GetRun(0).GetNoOfParam(); i++) {
+        data = getData(i);
+        dataErr = getDataErr(i);
+        prog.add_predef_var_values(getVarName(i), data, dataErr);
+      }
+      if (!fVarName.empty()) {
+        mupp::prog::PProgEval eval(prog.getVars()); // setup evaluation stage
+        eval(fAst); // evaluate stuff
+
+        // keep data
+        bool ok;
+        fVar = eval.getVar(fVarName, ok);
+        if (!ok) {
+          std::cerr << "**ERROR** evalution failed..." << std::endl;
+          fIsValid = false;
+        }
+      }
+    }
+    fIsValid = true;
+  } else {
+    std::cerr << "**ERROR** parsing failed..." << std::endl;
+  }
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PVarHandler::getValues
+ * @return
+ */
+std::vector<double> PVarHandler::getValues()
+{
+  std::vector<double> data;
+  if (fIsValid)
+    data = fVar.GetValue();
+
+  return data;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PVarHandler::getErrors
+ * @return
+ */
+std::vector<double> PVarHandler::getErrors()
+{
+  std::vector<double> data;
+  if (fIsValid)
+    data = fVar.GetError();
+
+  return data;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PVarHandler::injectPredefVariables
+ */
+void PVarHandler::injectPredefVariables()
+{
+  mupp::ast::statement var_stat;
+  mupp::ast::variable_declaration var;
+
+  std::string varName, errVarName;
+  PmuppRun run = fColl->GetRun(0);
+  for (int i=0; i<run.GetNoOfParam(); i++) {
+    varName = run.GetParam(i).GetName().toLatin1().data();
+    errVarName = varName + "Err";
+    // inject err_name
+    var.lhs.name = errVarName;
+    var_stat = var;
+    fAst.push_front(var_stat);
+    // inject var_name
+    var.lhs.name = varName;
+    var_stat = var;
+    fAst.push_front(var_stat);
+  }
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PVarHandler::getVarName
+ * @param idx
+ * @return
+ */
+std::string PVarHandler::getVarName(int idx)
+{
+  std::string name("??");
+
+  // make sure idx is in range
+  if (idx >= fColl->GetRun(0).GetNoOfParam())
+    return name;
+
+  return fColl->GetRun(0).GetParam(idx).GetName().toLatin1().data();
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PVarHandler::getData
+ * @param idx
+ * @return
+ */
+std::vector<double> PVarHandler::getData(int idx)
+{
+  std::vector<double> data;
+
+  // make sure idx is in range
+  if (idx >= fColl->GetRun(0).GetNoOfParam())
+    return data;
+
+  double dval;
+  for (int i=0; i<fColl->GetNoOfRuns(); i++) {
+    dval = fColl->GetRun(i).GetParam(idx).GetValue();
+    data.push_back(dval);
+  }
+
+  return data;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PVarHandler::getDataErr
+ * @param idx
+ * @return
+ */
+std::vector<double> PVarHandler::getDataErr(int idx)
+{
+  std::vector<double> err;
+
+  // make sure idx is in range
+  if (idx >= fColl->GetRun(0).GetNoOfParam())
+    return err;
+
+  double dvalPos, dvalNeg;
+  for (int i=0; i<fColl->GetNoOfRuns(); i++) {
+    dvalPos = fColl->GetRun(i).GetParam(idx).GetPosErr();
+    dvalNeg = fColl->GetRun(i).GetParam(idx).GetNegErr();
+    dvalPos = sqrt(fabs(dvalPos*dvalNeg)); // geometric mean of pos/neg error
+    err.push_back(dvalPos);
+  }
+
+  return err;
+}
diff --git a/src/musredit_qt6/musrStep/CMakeLists.txt b/src/musredit_qt6/musrStep/CMakeLists.txt
new file mode 100644
index 00000000..95e8af95
--- /dev/null
+++ b/src/musredit_qt6/musrStep/CMakeLists.txt
@@ -0,0 +1,75 @@
+#--- musrStep for Qt > 6.0 ----------------------------------------------------
+
+set(qt_libs Qt6::Core Qt6::Widgets Qt6::Svg)
+
+set(musrStep_src
+  PMusrStep.cpp
+  musrStep.cpp
+)
+
+# Instruct CMake to run moc automatically when needed
+set(CMAKE_AUTOMOC ON)
+
+#[==[ 
+# as35 currently CMAKE_AUTOUIC -> ON doesn't work since it requires the ui-files
+#      in the same directory as the cpp-files.
+# Create code from a list of Qt designer ui files
+set(CMAKE_AUTOUIC ON)
+#]==]
+set(CMAKE_AUTOUIC OFF)
+
+# add qt/rcc
+qt6_add_resources(musrStep_rcc musrStep.qrc)
+
+# remove generated files from automoc and autouic
+set_property(SOURCE qrc_musrStep.cpp PROPERTY SKIP_AUTOMOC ON)
+
+set(macosx_icon icons/musrStep.icns)
+if (APPLE)
+  add_executable(musrStep MACOSX_BUNDLE
+    ${musrStep_src}
+    ${musrStep_rcc}
+    ${macosx_icon}
+  )
+else (APPLE)
+  add_executable(musrStep 
+    ${musrStep_src}
+    ${musrStep_rcc}
+  )
+endif (APPLE)
+
+target_include_directories(musrStep
+  BEFORE PRIVATE
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/..>
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/../..>
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../../include>
+)
+
+target_link_libraries(musrStep ${qt_libs})
+
+#--- installation info --------------------------------------------------------
+if (APPLE)
+  set_target_properties(musrStep PROPERTIES
+    MACOSX_BUNDLE TRUE
+    MACOSX_BUNDLE_BUNDLE_NAME "musrStep"
+    MACOSX_BUNDLE_INFO_STRING "musrfit: musrStep allows to reset/set the initial step size of a msr-files."
+    MACOSX_BUNDLE_ICON_FILE "musrStep.icns"
+    MACOSX_BUNDLE_LONG_VERSION_STRING "${PROJECT_VERSION}"
+    MACOSX_BUNDLE_GUI_IDENTIFIER "ch.psi.lmu.musrStep"
+    MACOSX_BUNDLE_COPYRIGHT "Andreas Suter"
+    RESOURCE ${macosx_icon}
+  )
+endif (APPLE)
+
+if (APPLE)
+  install( TARGETS musrStep
+    BUNDLE DESTINATION /Applications
+  )
+else (APPLE)
+  install( TARGETS musrStep
+    RUNTIME DESTINATION bin
+  )
+endif (APPLE)
+
diff --git a/src/musredit_qt6/musrStep/LICENSE b/src/musredit_qt6/musrStep/LICENSE
new file mode 100644
index 00000000..53503fbf
--- /dev/null
+++ b/src/musredit_qt6/musrStep/LICENSE
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
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+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    musrStep_qt5
+    Copyright (C) 2016  Andreas Suter
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    musrStep_qt5  Copyright (C) 2016  Andreas Suter
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/src/musredit_qt6/musrStep/PMusrStep.cpp b/src/musredit_qt6/musrStep/PMusrStep.cpp
new file mode 100644
index 00000000..92feba83
--- /dev/null
+++ b/src/musredit_qt6/musrStep/PMusrStep.cpp
@@ -0,0 +1,623 @@
+/***************************************************************************
+
+  PMusrStep.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2021 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QMessageBox>
+#include <QString>
+#include <QStringList>
+#include <QFile>
+#include <QByteArray>
+#include <QHBoxLayout>
+#include <QVBoxLayout>
+#include <QInputDialog>
+#include <QLineEdit>
+#include <QDoubleValidator>
+#include <QTextStream>
+#include <QPixmap>
+
+#include <QDebug>
+
+#include "PMusrStep.h"
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ *
+ */
+PModSelect::PModSelect(QWidget *parent) :
+  QDialog(parent)
+{
+  setWindowTitle("Modify Selected");
+
+  fScaleByFactor = new QPushButton("Scale by &Factor");
+  fScaleByFactor->setWhatsThis("if pressed it will use the Factor value, and the absolut value selection to change the selected parameter steps.");
+  fFactorLabel = new QLabel("Factor");
+  fFactorLineEdit = new QLineEdit("0.01");
+  fFactorLineEdit->setValidator(new QDoubleValidator);
+  fAbsVal = new QCheckBox("Absolute Value");
+  fAbsVal->setWhatsThis("if checked, the factor is used as an absolut value rather than a multiplication factor for the selected steps.");
+
+  QHBoxLayout *top = new QHBoxLayout;
+  top->addWidget(fScaleByFactor);
+  top->addWidget(fFactorLabel);
+  top->addWidget(fFactorLineEdit);
+  top->addWidget(fAbsVal);
+
+  fScaleAutomatic = new QPushButton("Scale &Automatically");
+  fScaleAutomatic->setWhatsThis("Will try to reset the step size of the selected items based on some crude rules");
+  fCancel = new QPushButton("&Cancel");
+
+  QHBoxLayout *bottom = new QHBoxLayout;
+  bottom->addWidget(fScaleAutomatic);
+  bottom->addWidget(fCancel);
+
+  QVBoxLayout *main = new QVBoxLayout;
+  main->addLayout(top);
+  main->addLayout(bottom);
+
+  setLayout(main);
+
+  connect(fAbsVal, SIGNAL(stateChanged(int)), this, SLOT(absoluteValueStateChanged(int)));
+  connect(fScaleAutomatic, SIGNAL(pressed()), this, SLOT(scaleAuto()));
+  connect(fScaleByFactor, SIGNAL(pressed()), this, SLOT(getFactor()));
+  connect(fCancel, SIGNAL(pressed()), this, SLOT(reject()));  
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PModSelect::absoluteValueStateChanged
+ * @param ival
+ */
+void PModSelect::absoluteValueStateChanged(int ival)
+{
+  if (ival == Qt::Unchecked) {
+    fFactorLabel->setText("Factor");
+    fScaleByFactor->setText("Scale by &Factor");
+  } else if (ival == Qt::Checked) {
+    fFactorLabel->setText("Value");
+    fScaleByFactor->setText("Set Abs. Value");
+  }
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+void PModSelect::scaleAuto()
+{
+  emit scale(true, 0.01, false);
+  done(1);
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+void PModSelect::getFactor()
+{
+  double factor = fFactorLineEdit->text().toDouble();
+  bool state = fAbsVal->isChecked();
+
+  emit scale(false, factor, state);
+  done(1);
+}
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ *
+ */
+PMusrStep::PMusrStep(const char *fln, QWidget *parent) :
+  QDialog(parent),
+  fMsrFileName(fln)
+{
+  setWindowTitle("musrStep");
+  QString str = QIcon::themeName();
+  bool isDarkTheme = false;
+  if (str.contains("dark", Qt::CaseInsensitive))
+    isDarkTheme = true;
+
+  if (isDarkTheme)
+    str = QString(":/icons/musrStep-22x22-dark.svg");
+  else
+    str = QString(":/icons/musrStep-22x22.svg");
+  setWindowIcon(QIcon(QPixmap(str)));
+
+  fValid = false;
+
+  QString title = QString("<b><font size=""14"">%1</font></b>").arg(fMsrFileName);
+  fTitleLabel = new QLabel(title);
+  QLabel *icon = new QLabel();
+  if (isDarkTheme)
+    str = QString(":/icons/musrStep-32x32-dark.svg");
+  else
+    str = QString(":/icons/musrStep-32x32.svg");
+  icon->setPixmap(QPixmap(str));
+
+  QHBoxLayout *titleLayout = new QHBoxLayout;
+  titleLayout->addWidget(fTitleLabel);
+  titleLayout->addWidget(icon);
+  titleLayout->insertStretch(1);
+
+  int status = 0;
+  if ((status=readMsrFile()) == 1) {
+    fValid = true;
+  } else {
+    QString msg = QString("Failed to read msr-file: %1 (status=%2)").arg(fMsrFileName).arg(status);
+    QMessageBox::critical(0, "ERROR", msg);
+  }
+
+  int height;
+  if (fParamVec.size() < 70)
+    height = 20*fParamVec.size();
+  else
+    height = 900;
+  setMinimumSize(400, height);
+
+  // populate dialog
+  fParamTable = new QTableWidget(fParamVec.size(), 3);
+  QStringList strL;
+  strL << "name" << "value" << "step";
+  fParamTable->setHorizontalHeaderLabels(strL);
+
+  QTableWidgetItem *item;
+  for (int i=0; i<fParamVec.size(); i++) {
+    item = new QTableWidgetItem(fParamVec[i].name);
+    item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsUserCheckable);
+    item->setCheckState(Qt::Unchecked);
+    fParamTable->setItem(i, 0, item);
+    item = new QTableWidgetItem(fParamVec[i].value);
+    item->setFlags(Qt::ItemIsEnabled);
+    fParamTable->setItem(i, 1, item);
+    item = new QTableWidgetItem(fParamVec[i].step);
+    fParamTable->setItem(i, 2, item);
+  }
+  fCheckSpecific = new QPushButton("Check S&pecific");
+  fCheckSpecific->setWhatsThis("Allows to specify a template name which is used\nto select parameter names fitting to it.");
+  fCheckAll = new QPushButton("Check A&ll");
+  fCheckAll->setWhatsThis("Select all parameter names,\nexcept the ones with step == 0");
+  fUnCheckAll = new QPushButton("&Uncheck All");  
+  fUnCheckAll->setWhatsThis("Unselect all parameter names");
+
+  QHBoxLayout *checkLayout = new QHBoxLayout;
+  checkLayout->addWidget(fCheckSpecific);
+  checkLayout->addWidget(fCheckAll);
+  checkLayout->addWidget(fUnCheckAll);
+
+  fModifyAuto = new QPushButton("Modify &Automatic");
+  fModifyAuto->setWhatsThis("Will try to reset the step size,\nbased on some crude rules");
+  fModifyAuto->setDefault(true);
+  fModifySelected = new QPushButton("&Modify Selected");
+  fModifySelected->setWhatsThis("Will call a dialog which all to specify how\nto proceed with the selected parameter steps.");
+
+  QHBoxLayout *modifyLayout = new QHBoxLayout;
+  modifyLayout->addWidget(fModifyAuto);
+  modifyLayout->addWidget(fModifySelected);
+
+  fSave = new QPushButton("&Save&&Quit");
+  fCancel = new QPushButton("&Cancel");
+
+  QHBoxLayout *buttomLayout = new QHBoxLayout;
+  buttomLayout->addWidget(fSave);
+  buttomLayout->addWidget(fCancel);
+
+  QVBoxLayout *mainLayout = new QVBoxLayout;
+  mainLayout->addLayout(titleLayout);
+  mainLayout->addWidget(fParamTable);
+  mainLayout->addLayout(checkLayout);
+  mainLayout->addLayout(modifyLayout);
+  mainLayout->addLayout(buttomLayout);
+
+  setLayout(mainLayout);
+
+  connect(fParamTable, SIGNAL(cellChanged(int, int)), this, SLOT(handleCellChanged(int, int)));
+
+  connect(fCheckSpecific, SIGNAL(pressed()), this, SLOT(checkSpecific()));
+  connect(fCheckAll, SIGNAL(pressed()), this, SLOT(checkAll()));
+  connect(fUnCheckAll, SIGNAL(pressed()), this, SLOT(unCheckAll()));
+
+  connect(fModifyAuto, SIGNAL(pressed()), this, SLOT(modifyAuto()));
+  connect(fModifySelected, SIGNAL(pressed()), this, SLOT(modifyChecked()));
+  connect(fSave, SIGNAL(pressed()), this, SLOT(saveAndQuit()));
+  connect(fCancel, SIGNAL(pressed()), this, SLOT(reject()));
+
+  fModSelect = new PModSelect(this);
+  connect(fModSelect, SIGNAL(scale(bool,double,bool)), this, SLOT(handleModSelect(bool,double,bool)));
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+void PMusrStep::handleCellChanged(int row, int column)
+{
+  QString str;
+  bool ok;
+  if (column == 0) {
+    str = fParamTable->item(row, 2)->text();
+    if ((fParamTable->item(row, column)->checkState() == Qt::Checked) &&
+        ((str == "0") || (str == "0.0"))) {
+      fParamTable->item(row, column)->setCheckState(Qt::Unchecked);
+      QMessageBox::warning(0, "WARNING", "You cannot select a fixed value (step == 0).");
+    }
+  } else if (column == 2) {
+    str = fParamTable->item(row, column)->text();
+    str.toDouble(&ok); // result is of no interest
+    if (ok) {
+      fParamVec[row].step = str;
+    } else {
+      fParamTable->item(row, column)->setText(fParamVec[row].step);
+    }
+  }
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+void PMusrStep::checkSpecific()
+{
+  bool ok;
+  QString str = QInputDialog::getText(this, "Enter Param Name Template", "Template:",
+                                      QLineEdit::Normal, "", &ok);
+  if (!ok)
+    return;
+
+  QString step("");
+  for (int i=0; i<fParamTable->rowCount(); i++) {
+    if (fParamTable->item(i,0)->text().contains(str)) {
+      step = fParamTable->item(i,2)->text();
+      if ((step != "0") && (step != "0.0"))
+        fParamTable->item(i,0)->setCheckState(Qt::Checked);
+    }
+  }
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+void PMusrStep::checkAll()
+{
+  QString str("");
+  for (int i=0; i<fParamTable->rowCount(); i++) {
+    str = fParamTable->item(i,2)->text();
+    if ((str != "0") && (str != "0.0"))
+      fParamTable->item(i,0)->setCheckState(Qt::Checked);
+  }
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+void PMusrStep::unCheckAll()
+{
+  for (int i=0; i<fParamTable->rowCount(); i++) {
+    fParamTable->item(i,0)->setCheckState(Qt::Unchecked);
+  }
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+void PMusrStep::modifyAuto()
+{
+  QString str;
+  bool absVal;
+  double factor;
+  for (int i=0; i<fParamTable->rowCount(); i++) {
+    str = fParamTable->item(i,2)->text();
+    if ((str != "0") && (str != "0.0")) {
+      factor = lookupTable(fParamTable->item(i,0)->text(), absVal);
+      str = adoptStep(fParamTable->item(i,1)->text(), factor, absVal);
+      fParamTable->item(i,2)->setText(str);
+      fParamVec[i].step = str;
+    }
+  }
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+void PMusrStep::modifyChecked()
+{
+  fModSelect->show();
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+void PMusrStep::handleModSelect(bool automatic, double factor, bool absVal)
+{
+  QString str;
+  for (int i=0; i<fParamTable->rowCount(); i++) {
+    if (fParamTable->item(i,0)->checkState() == Qt::Checked) {
+      if (automatic) {
+        factor = lookupTable(fParamTable->item(i,0)->text(), absVal);
+      }
+      str = adoptStep(fParamTable->item(i,1)->text(), factor, absVal);
+      fParamTable->item(i,2)->setText(str);
+      fParamVec[i].step = str;
+    }
+  }
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+void PMusrStep::saveAndQuit()
+{
+  writeMsrFile();
+  accept();
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+void PMusrStep::initParam(PParam &param)
+{
+  param.number = "";
+  param.name = "";
+  param.value = "";
+  param.step = "";
+  param.posErr = "";
+  param.boundLow = "";
+  param.boundHigh = "";
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+double PMusrStep::lookupTable(const QString str, bool &absVal)
+{
+  double factor = 0.01;
+  absVal = false;
+
+  if (str.startsWith("freq", Qt::CaseInsensitive) ||
+      str.startsWith("frq", Qt::CaseInsensitive) ||
+      str.startsWith("field", Qt::CaseInsensitive)) {
+    factor = 1.0e-3;
+  } else if (str.startsWith("lambda", Qt::CaseInsensitive) ||
+           str.startsWith("sigma", Qt::CaseInsensitive) ||
+           str.startsWith("rlx", Qt::CaseInsensitive) ||
+           str.startsWith("rate", Qt::CaseInsensitive)) {
+    factor = 0.1;
+  } else if (str.startsWith("phase", Qt::CaseInsensitive) ||
+             str.startsWith("phs", Qt::CaseInsensitive)) {
+    factor = 5.0;
+    absVal = true;
+  } else if (str.startsWith("N0", Qt::CaseInsensitive) ||
+             str.startsWith("Nrm", Qt::CaseInsensitive) ||
+             str.startsWith("N_bkg", Qt::CaseInsensitive) ||
+             str.startsWith("Bgr", Qt::CaseInsensitive)) {
+    factor = 0.01;
+  }
+
+  return factor;
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+QString PMusrStep::adoptStep(const QString str, double factor, bool absVal)
+{
+  bool ok;
+  double dval = str.toDouble(&ok);
+
+  QString step("");
+  if (absVal)
+    step = QString("%1").arg(factor);
+  else
+    step = QString("%1").arg(factor*dval);
+
+  return step;
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+int PMusrStep::readMsrFile()
+{
+  fParamVec.clear();
+
+  QFile fin(fMsrFileName);
+
+  if (!fin.open(QIODevice::ReadOnly|QIODevice::Text))
+    return -1;
+
+  bool done = false, parameter = false;
+  QByteArray line;
+  QString str;
+  QStringList strL;
+  PParam param;
+
+  while(!done && !fin.atEnd()) {
+    line = fin.readLine();
+    str = line.data();
+    str = str.trimmed();
+    if (str.isEmpty() || str.startsWith("#")) {
+      continue;
+    } else if (str.startsWith("FITPARAMETER")) {
+      parameter = true;
+      continue;
+    } else if (str.startsWith("THEORY")) {
+      done = true;
+      continue;
+    }
+
+    if (parameter) {
+      strL = str.split(" ", Qt::SkipEmptyParts);
+      if ((strL.size() != 5) && (strL.size() != 7)) {
+        fin.close();
+        return -2;
+      }
+      initParam(param);
+
+      param.number = strL[0];
+      param.name = strL[1];
+      param.value = strL[2];
+      param.step = strL[3];
+      param.posErr = strL[4];
+      if (strL.size() == 7) {
+        param.boundLow = strL[5];
+        param.boundHigh= strL[6];
+      }
+      fParamVec.push_back(param);
+    }
+  }
+
+  fin.close();
+
+  return 1;
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+int PMusrStep::writeMsrFile()
+{
+  // read whole msr-file
+  QFile fin(fMsrFileName);
+
+  if (!fin.open(QIODevice::ReadOnly|QIODevice::Text))
+    return -1;
+
+  QByteArray data = fin.readAll();
+
+  fin.close();
+
+  QFile fileOut(fMsrFileName);
+
+  if (!fileOut.open(QIODevice::WriteOnly|QIODevice::Text))
+    return -2;
+
+  QTextStream fout(&fileOut);
+
+  int idx = 0;
+  QString line, paramLine;
+  bool done = false;
+  bool paramBlock = false;
+  do {
+    line = getLine(data, idx);
+    if ((idx == -1) || (idx == data.count())) {
+      done = true;
+    } else {
+      if (line.startsWith("FITPARAMETER")) {
+        paramBlock = true;
+      } else if (line.startsWith("THEORY")) {
+        paramBlock = false;
+      }
+      if (paramBlock) {
+        paramLine = updateParamLine(line);
+        if (paramLine == "") // comment line, etc.
+          fout << line << "\n";
+        else
+          fout << paramLine << "\n";
+      } else {
+        fout << line << "\n";
+      }
+    }
+  } while (!done);
+  fout << "*** FIT DID NOT CONVERGE ***\n";
+
+  fileOut.close();
+
+  return 1;
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+QString PMusrStep::getLine(QByteArray &data, int &idx)
+{
+  int newIdx = data.indexOf('\n', idx);
+  QString line("");
+
+  if (newIdx != -1) {
+    line = data.mid(idx, newIdx-idx).data();
+    idx = newIdx+1;
+  }
+
+  return line;
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+QString PMusrStep::updateParamLine(const QString str)
+{
+  // find proper parameter index
+  int idx = -1;
+  QString paramStr;
+  for (int i=0; i<fParamVec.size(); i++) {
+    // parameter name need to be sandwiched between spaces to prevent that e.g. 'MinusOne' is overwritten by an existing 'One'
+    paramStr = " " + fParamVec[i].name + " ";
+    if (str.contains(paramStr)) {
+      idx = i;
+      break;
+    }
+  }
+
+  if (idx == -1)
+    return QString("");
+
+  // construct new parameter line
+  QString result;
+  QString fstr;
+  QTextStream ss(&result);
+  ss.setFieldWidth(10);
+  ss.setFieldAlignment(QTextStream::AlignRight);
+  fstr = fParamVec[idx].number + " ";
+  ss << fstr;
+  ss.setFieldAlignment(QTextStream::AlignLeft);
+  int width = 12;
+  if (fParamVec[idx].name.length() >= 12)
+    width = fParamVec[idx].name.length()+1;
+  ss.setFieldWidth(width);
+  ss << fParamVec[idx].name;
+  ss.setFieldWidth(11);
+  ss << fParamVec[idx].value;
+  ss << fParamVec[idx].step;
+  ss << fParamVec[idx].posErr;
+  if (fParamVec[idx].boundLow != "") {
+    ss << fParamVec[idx].boundLow;
+    ss << fParamVec[idx].boundHigh;
+  }
+
+  return result;
+}
diff --git a/src/musredit_qt6/musrStep/PMusrStep.h b/src/musredit_qt6/musrStep/PMusrStep.h
new file mode 100644
index 00000000..aa60ec59
--- /dev/null
+++ b/src/musredit_qt6/musrStep/PMusrStep.h
@@ -0,0 +1,122 @@
+/***************************************************************************
+
+  PMusrStep.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PMUSRSTEP_H_
+#define _PMUSRSTEP_H_
+
+#include <QDialog>
+#include <QWidget>
+#include <QVector>
+#include <QPushButton>
+#include <QTableWidget>
+#include <QLabel>
+#include <QCheckBox>
+
+typedef struct {
+  QString number;
+  QString name;
+  QString value;
+  QString step;
+  QString posErr;
+  QString boundLow;
+  QString boundHigh;
+} PParam;
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+class PModSelect : public QDialog
+{
+  Q_OBJECT
+
+  public:
+    PModSelect(QWidget *parent=Q_NULLPTR);
+
+  signals:
+    void scale(bool automatic, double factor, bool absVal);
+
+  private slots:
+    void absoluteValueStateChanged(int);
+    void scaleAuto();
+    void getFactor();
+
+  private:
+    QCheckBox *fAbsVal;
+    QLabel *fFactorLabel;
+    QLineEdit *fFactorLineEdit;
+    QPushButton *fScaleByFactor;
+    QPushButton *fScaleAutomatic;
+    QPushButton *fCancel;
+};
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+class PMusrStep : public QDialog
+{
+  Q_OBJECT
+
+  public:
+    PMusrStep(const char *fln, QWidget *parent=Q_NULLPTR);
+    bool isValid() { return fValid; }
+
+  private slots:
+    void handleCellChanged(int row, int column);
+    void checkSpecific();
+    void checkAll();
+    void unCheckAll();
+    void modifyAuto();
+    void modifyChecked();
+    void saveAndQuit();
+    void handleModSelect(bool automatic, double factor, bool absVal);
+
+  private:
+    QString fMsrFileName;
+    bool fValid;
+
+    QVector<PParam> fParamVec;
+
+    QLabel       *fTitleLabel;
+    QTableWidget *fParamTable;
+    QPushButton  *fCheckSpecific;
+    QPushButton  *fCheckAll;
+    QPushButton  *fUnCheckAll;
+    QPushButton  *fModifyAuto;
+    QPushButton  *fModifySelected;
+    QPushButton  *fSave;
+    QPushButton  *fCancel;
+
+    PModSelect *fModSelect;
+
+    void initParam(PParam &param);
+    double lookupTable(const QString str, bool &absVal);
+    QString adoptStep(const QString str, double factor, bool absVal);
+    int readMsrFile();
+    int writeMsrFile();
+    QString getLine(QByteArray &data, int &idx);
+    QString updateParamLine(const QString str);
+};
+
+#endif // _PMUSRSTEP_H_
diff --git a/src/musredit_qt6/musrStep/README.md b/src/musredit_qt6/musrStep/README.md
new file mode 100644
index 00000000..e4ed1aea
--- /dev/null
+++ b/src/musredit_qt6/musrStep/README.md
@@ -0,0 +1,2 @@
+musrStep helps to intelligently reset the steps of a msr-file after a fit.
+Often this is needed for refinement purposes.
\ No newline at end of file
diff --git a/src/musredit_qt6/musrStep/icons/musrStep-22x22-dark.svg b/src/musredit_qt6/musrStep/icons/musrStep-22x22-dark.svg
new file mode 100644
index 00000000..a4855a18
--- /dev/null
+++ b/src/musredit_qt6/musrStep/icons/musrStep-22x22-dark.svg
@@ -0,0 +1,134 @@
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new file mode 100644
index 00000000..0532ca29
--- /dev/null
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@@ -0,0 +1,134 @@
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diff --git a/src/musredit_qt6/musrStep/icons/musrStep-32x32-dark.svg b/src/musredit_qt6/musrStep/icons/musrStep-32x32-dark.svg
new file mode 100644
index 00000000..b7a44516
--- /dev/null
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+       inkscape:connector-curvature="0"
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+</svg>
diff --git a/src/musredit_qt6/musrStep/icons/musrStep-32x32.svg b/src/musredit_qt6/musrStep/icons/musrStep-32x32.svg
new file mode 100644
index 00000000..a0c6dbe1
--- /dev/null
+++ b/src/musredit_qt6/musrStep/icons/musrStep-32x32.svg
@@ -0,0 +1,140 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="32"
+   height="32"
+   id="svg2"
+   version="1.1"
+   inkscape:version="0.47 r22583"
+   sodipodi:docname="musrStep-32x32.png">
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+       inkscape:vp_x="0 : 0.5 : 1"
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+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
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+</svg>
diff --git a/src/musredit_qt6/musrStep/icons/musrStep.icns b/src/musredit_qt6/musrStep/icons/musrStep.icns
new file mode 100644
index 00000000..4a14ce55
Binary files /dev/null and b/src/musredit_qt6/musrStep/icons/musrStep.icns differ
diff --git a/src/musredit_qt6/musrStep/musrStep.cpp b/src/musredit_qt6/musrStep/musrStep.cpp
new file mode 100644
index 00000000..b2314b26
--- /dev/null
+++ b/src/musredit_qt6/musrStep/musrStep.cpp
@@ -0,0 +1,57 @@
+#include <iostream>
+#include <cstring>
+
+#include <QApplication>
+
+#include <QtDebug>
+
+#include "git-revision.h"
+#include "PMusrStep.h"
+
+//-------------------------------------------------------------------------
+void musrStep_syntax()
+{
+  std::cout << std::endl;
+  std::cout << "usage: musrStep <fln> | [-v | --version] | [-h | --help]" << std::endl;
+  std::cout << "       <fln>: msr-file name." << std::endl;
+  std::cout << "       -v, --version: print the current git-version to the stdout" << std::endl;
+  std::cout << "       -h, --help: print this help" << std::endl;
+  std::cout << std::endl << std::endl;
+}
+
+//-------------------------------------------------------------------------
+int main(int argc, char *argv[])
+{
+  char fln[1024];
+
+  if (argc != 2) {
+    musrStep_syntax();
+    return 1;
+  } else {
+    if (!strcmp(argv[1], "--version") || (!strcmp(argv[1], "-v"))) {
+      std::cout << std::endl << "musrStep git-rev: " << GIT_CURRENT_SHA1 << std::endl << std::endl;
+      return 0;
+    } else if (!strcmp(argv[1], "--help") || (!strcmp(argv[1], "-h"))) {
+      musrStep_syntax();
+      return 0;
+    } else {
+      strncpy(fln, argv[1], sizeof(fln));
+    }
+  }
+
+  Q_INIT_RESOURCE(musrStep);
+
+  QApplication app(argc, argv);
+
+  PMusrStep musrStep(fln);
+  if (!musrStep.isValid())
+    return 1;
+
+  musrStep.show();
+
+  app.exec();
+
+  int result = musrStep.result();
+
+  return result;
+}
diff --git a/src/musredit_qt6/musrStep/musrStep.pro b/src/musredit_qt6/musrStep/musrStep.pro
new file mode 100644
index 00000000..daedf7c5
--- /dev/null
+++ b/src/musredit_qt6/musrStep/musrStep.pro
@@ -0,0 +1,75 @@
+TEMPLATE = app
+TARGET = musrStep
+
+# install path for musrStep via given prefix
+count( PREFIX, 1 ) {
+	MUSRSTEP_INSTALL_PATH = $${PREFIX}/bin
+}
+isEmpty( MUSRSTEP_INSTALL_PATH ) {
+	MUSR_FIT_PATH = $$(MUSRFITPATH)
+	count( MUSR_FIT_PATH, 1) {
+		MUSRSTEP_INSTALL_PATH = $$(MUSRFITPATH)
+	}
+}
+isEmpty( MUSRSTEP_INSTALL_PATH ) {
+	ROOT_SYS_PATH = $$(ROOTSYS)
+	count( ROOT_SYS_PATH, 1) {
+		MUSRSTEP_INSTALL_PATH = $$(ROOTSYS)/bin
+	}
+}
+isEmpty( MUSRSTEP_INSTALL_PATH ) {
+	MUSRSTEP_INSTALL_PATH = /usr/local/bin
+}
+
+exists( /usr/bin/cygwin1.dll ) {
+      QMAKE_CXXFLAGS += -D_WIN32GCC
+      QMAKE_LFLAGS_APP = -Wl,--enable-auto-import
+}
+
+isEmpty( CC ) {
+    CC = gcc
+}
+
+isEmpty( CXX ) {
+    CXX = g++
+}
+
+QMAKE_CC = $${CC}
+QMAKE_CXX = $${CXX}
+QMAKE_LINK = $${CXX}
+
+# set proper permission for Mac OSX
+macx {
+   QMAKE_INSTALL_FILE = install -m 6755 -p -o $$(USER) -g staff
+}
+
+# install path for the application
+unix {
+    message( "Determined installation path: $${MUSRSTEP_INSTALL_PATH}" )
+}
+
+unix:target.path = $${MUSRSTEP_INSTALL_PATH}
+macx:target.path = /Applications
+win32:target.path = c:/musrfit/bin
+
+INSTALLS += target
+
+CONFIG += qt \
+    warn_on \
+    release \
+    console
+
+QT += widgets
+QT += svg
+
+INCLUDEPATH += "../../include"
+
+HEADERS = ../../include/git-revision.h \
+          PMusrStep.h
+
+SOURCES = PMusrStep.cpp \
+          musrStep.cpp
+
+RESOURCES = musrStep.qrc
+
+macx:ICON = icons/musrStep.icns
diff --git a/src/musredit_qt6/musrStep/musrStep.qrc b/src/musredit_qt6/musrStep/musrStep.qrc
new file mode 100644
index 00000000..24bbe5af
--- /dev/null
+++ b/src/musredit_qt6/musrStep/musrStep.qrc
@@ -0,0 +1,8 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource>
+    <file>icons/musrStep-22x22.svg</file>
+    <file>icons/musrStep-22x22-dark.svg</file>
+    <file>icons/musrStep-32x32.svg</file>
+    <file>icons/musrStep-32x32-dark.svg</file>
+</qresource>
+</RCC>
diff --git a/src/musredit_qt6/musrWiz/CMakeLists.txt b/src/musredit_qt6/musrWiz/CMakeLists.txt
new file mode 100644
index 00000000..c8511825
--- /dev/null
+++ b/src/musredit_qt6/musrWiz/CMakeLists.txt
@@ -0,0 +1,78 @@
+#--- musrWiz for Qt > 6.0 -----------------------------------------------------
+
+set(qt_libs Qt6::Core Qt6::Widgets Qt6::Svg Qt6::Xml)
+
+set(musrWiz_src
+  PTheoTemplate.cpp
+  PMusrfitFunc.cpp
+  PInstrumentDef.cpp
+  PAdmin.cpp
+  PMusrWiz.cpp
+  musrWiz.cpp
+)
+
+# Instruct CMake to run moc automatically when needed
+set(CMAKE_AUTOMOC ON)
+
+#[==[ 
+# as35 currently CMAKE_AUTOUIC -> ON doesn't work since it requires the ui-files
+#      in the same directory as the cpp-files.
+# Create code from a list of Qt designer ui files
+set(CMAKE_AUTOUIC ON)
+#]==]
+set(CMAKE_AUTOUIC OFF)
+
+# add qt/rcc
+qt6_add_resources(musrWiz_rcc musrWiz.qrc)
+
+# remove generated files from automoc and autouic
+set_property(SOURCE qrc_musrWiz.cpp PROPERTY SKIP_AUTOMOC ON)
+
+set(macosx_icon icons/musrWiz.icns)
+if (APPLE)
+  add_executable(musrWiz MACOSX_BUNDLE
+    ${musrWiz_src}
+    ${musrWiz_rcc}
+    ${macosx_icon}    
+  )
+else (APPLE)
+  add_executable(musrWiz 
+    ${musrWiz_src}
+    ${musrWiz_rcc}
+  )
+endif (APPLE)
+
+target_include_directories(musrWiz
+  BEFORE PRIVATE
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/..>
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/../..>
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../../include>
+)
+
+target_link_libraries(musrWiz ${qt_libs})
+
+#--- installation info --------------------------------------------------------
+if (APPLE)
+  set_target_properties(musrWiz PROPERTIES
+    MACOSX_BUNDLE TRUE
+    MACOSX_BUNDLE_BUNDLE_NAME "musrWiz"
+    MACOSX_BUNDLE_INFO_STRING "musrfit: musrWiz allows to create input msr-files if no templates are available."
+    MACOSX_BUNDLE_ICON_FILE "musrWiz.icns"
+    MACOSX_BUNDLE_LONG_VERSION_STRING "${PROJECT_VERSION}"
+    MACOSX_BUNDLE_GUI_IDENTIFIER "ch.psi.lmu.musrWiz"
+    MACOSX_BUNDLE_COPYRIGHT "Andreas Suter"
+    RESOURCE ${macosx_icon}
+  )
+endif (APPLE)
+
+if (APPLE)
+  install( TARGETS musrWiz
+    BUNDLE DESTINATION /Applications
+  )
+else (APPLE)
+  install( TARGETS musrWiz
+    RUNTIME DESTINATION bin
+  )
+endif (APPLE)
diff --git a/src/musredit_qt6/musrWiz/PAdmin.cpp b/src/musredit_qt6/musrWiz/PAdmin.cpp
new file mode 100644
index 00000000..92d20603
--- /dev/null
+++ b/src/musredit_qt6/musrWiz/PAdmin.cpp
@@ -0,0 +1,1305 @@
+/****************************************************************************
+
+  PAdmin.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2021 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <cstdlib>
+#include <iostream>
+using namespace std;
+
+#include <QMessageBox>
+#include <QString>
+#include <QStringView>
+#include <QFile>
+#include <QTextStream>
+#include <QVector>
+#include <QXmlStreamAttributes>
+
+#include <QtDebug>
+
+#include "PAdmin.h"
+
+//--------------------------------------------------------------------------
+// implementation of PFuncXMLParser class
+//--------------------------------------------------------------------------
+/**
+ * <p>XML Parser class for the musrWiz function file.
+ *
+ * \param admin pointer to an admin class instance.
+ */
+PFuncXMLParser::PFuncXMLParser(const QString& fln, PAdmin *admin) : fAdmin(admin)
+{
+  fValid = false;
+  fKeyWord = eEmpty;
+
+  QFile file(fln);
+  if (!file.open(QFile::ReadOnly | QFile::Text)) {
+    // warning and create default - STILL MISSING
+  }
+
+  fValid = parse(&file);
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>parse musrfit_funcs.xml
+ *
+ * \param device QFile object of musrfit_funcs.xml
+ *
+ * @return true on success, false otherwise
+ */
+bool PFuncXMLParser::parse(QIODevice *device)
+{
+  fXml.setDevice(device);
+
+  bool expectChars = false;
+  while (!fXml.atEnd()) {
+    fXml.readNext();
+    if (fXml.isStartDocument()) {
+      startDocument();
+    } else if (fXml.isStartElement()) {
+      startElement();
+      expectChars = true;
+    } else if (fXml.isCharacters() && expectChars) {
+      characters();
+    } else if (fXml.isEndElement()) {
+      endElement();
+      expectChars = false;
+    } else if (fXml.isEndDocument()) {
+      endDocument();
+    }
+  }
+  if (fXml.hasError()) {
+    QString msg;
+    msg = QString("%1 Line %2, column %3").arg(fXml.errorString()).arg(fXml.lineNumber()).arg(fXml.columnNumber());
+    QMessageBox::critical(0, "**ERROR**", msg, QMessageBox::Ok, QMessageBox::NoButton);
+    return false;
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Routine called at the beginning of the XML parsing process.
+ */
+bool PFuncXMLParser::startDocument()
+{
+  // nothing to be done here for now
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Routine called when a new XML tag is found. Here it is used
+ * to set a tag for filtering afterwards the content.
+ */
+bool PFuncXMLParser::startElement()
+{
+  QString qName = fXml.name().toString();
+  QString str;
+
+  QString errMsg("");
+  int ival;
+  double dval;
+  bool ok;
+
+  if (qName == "theo_template") {
+    fTheoTemplate.init();
+  } else if (qName == "pre_def_name") {
+    fKeyWord = eTemplateName;
+  } else if (qName == "theory") {
+    fKeyWord = eTemplateTheo;
+  } else if (qName == "theo_fun") {
+    fKeyWord = eTemplateFunc;
+  } else if (qName == "theo_map") {
+    QXmlStreamAttributes qAttr = fXml.attributes();
+    if (qAttr.count() != 2) {
+      errMsg = QString("theo_map should have 2 attributes, called 'no', and 'name', found %1").arg(qAttr.count());
+      QMessageBox::critical(0, "ERROR", errMsg);
+      return false;
+    }
+    PParam map;
+    // get map number
+    str = qAttr.value("no").toString();
+    ival = str.toInt(&ok);
+    if (!ok) {
+      errMsg = QString("theo_map attribute 'no' is not a number (%1)").arg(str);
+      QMessageBox::critical(0, "ERROR", errMsg);
+      return false;
+    }
+    map.setNumber(ival);
+    // get map name
+    str = qAttr.value("name").toString();
+    map.setName(str);
+
+    // check that all necessary attributes where found
+    if ((map.getName() == "UnDef") || (map.getNumber() == -1)) {
+      errMsg = QString("found theo_map with missing attribute(s)");
+      QMessageBox::critical(0, "ERROR", errMsg);
+      return false;
+    }
+    fTheoTemplate.appendMap(map);
+  } else if (qName == "template_param") {
+    QXmlStreamAttributes qAttr = fXml.attributes();
+    if ((qAttr.count() != 4) && (qAttr.count() != 6)) {
+      errMsg = QString("template_param should have 4 or 6 attributes, called\n'no', 'name', 'value', 'step', ['boundLow', 'boundHigh'] found %1").arg(qAttr.count());
+      QMessageBox::critical(0, "ERROR", errMsg);
+      return false;
+    }
+    PParam param;
+    // parameter number
+    str = qAttr.value("no").toString();
+    ival = str.toInt(&ok);
+    if (!ok) {
+      errMsg = QString("template_param attribute 'no' is not a number (%1)").arg(str);
+      QMessageBox::critical(0, "ERROR", errMsg);
+      return false;
+    }
+    param.setNumber(ival);
+    // parameter name
+    str = qAttr.value("name").toString();
+    param.setName(str);
+    // parameter value
+    str = qAttr.value("value").toString();
+    dval = str.toDouble(&ok);
+    if (!ok) {
+      errMsg = QString("template_param attribute 'value' is not a number (%1)").arg(str);
+      QMessageBox::critical(0, "ERROR", errMsg);
+      return false;
+    }
+    param.setValue(dval);
+    // parameter step
+    str = qAttr.value("step").toString();
+    dval = str.toDouble(&ok);
+    if (!ok) {
+      errMsg = QString("template_param attribute 'step' is not a number (%1)").arg(str);
+      QMessageBox::critical(0, "ERROR", errMsg);
+      return false;
+    }
+    param.setStep(dval);
+    // parameter lower bound
+    str = qAttr.value("boundLow").toString();
+    if (!str.isEmpty())
+      param.setBoundLow(str);
+    // parameter upper bound
+    str = qAttr.value("boundHigh").toString();
+    if (!str.isEmpty())
+      param.setBoundHigh(str);
+    fTheoTemplate.appendParam(param);
+  } else if (qName == "func") {
+    fFunc.initFunc();
+  } else if (qName == "name") {
+    fKeyWord = eName;
+  } else if (qName == "abbrv") {
+    fKeyWord = eAbbrv;
+  } else if (qName == "no_of_parameters") {
+    fKeyWord = eNoOfParam;
+  } else if (qName == "parameter") {
+    fParam.initParam();
+  } else if (qName == "param_name") {
+    fKeyWord = eParamName;
+  } else if (qName == "param_value") {
+    fKeyWord = eParamValue;
+  } else if (qName == "param_is_map") {
+    fKeyWord = eParamMap;
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Routine called when the end XML tag is found. It is used to
+ * put the filtering tag to 'empty'. It also resets the fFunc flag in case
+ * the entry was a theory function.
+ */
+bool PFuncXMLParser::endElement()
+{
+  fKeyWord = eEmpty;
+
+  QString qName = fXml.name().toString();
+
+  if (qName == "theo_template") {
+    fAdmin->fTheoTemplate.push_back(fTheoTemplate);
+  } else if (qName == "func") {
+    fAdmin->fMusrfitFunc.push_back(fFunc);
+  } else if (qName == "parameter") {
+    fFunc.addFuncParam(fParam);
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>This routine delivers the content of an XML tag. It fills the
+ * content into the load data structure.
+ */
+bool PFuncXMLParser::characters()
+{
+  QString str = fXml.text().toString();
+  if (str.isEmpty())
+    return true;
+
+  bool ok;
+  int ival;
+  double dval;
+
+  switch (fKeyWord) {
+  case eTemplateName:
+    fTheoTemplate.setName(str);
+    break;
+  case eTemplateTheo:
+    fTheoTemplate.setTheory(str);
+    break;
+  case eTemplateFunc:
+    fTheoTemplate.appendFunc(str);
+    break;
+  case eName:
+    fFunc.setName(str);
+    break;
+  case eAbbrv:
+    fFunc.setAbbrv(str);
+    break;
+  case eNoOfParam:
+    ival = str.toInt(&ok);
+    if (ok)
+      fFunc.setNoOfParam(ival);
+    break;
+  case eParamName:
+    fParam.setParamName(str);
+    break;
+  case eParamValue:
+    dval = str.toDouble(&ok);
+    if (ok)
+      fParam.setParamValue(dval);
+    break;
+  case eParamMap:
+    if ((str == "y") || (str == "yes") || (str == "1"))
+      fParam.setParamMap(true);
+    break;
+  default:
+    break;
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Called at the end of the XML parse process. It checks if default paths
+ * contain system variables, and if so expand them for the further use.
+ */
+bool PFuncXMLParser::endDocument()
+{
+  return true;
+}
+
+//--------------------------------------------------------------------------
+// implementation of PInstrumentDefXMLParser class
+//--------------------------------------------------------------------------
+/**
+ * <p>XML Parser class for the instrument definition file(s).
+ *
+ * \param file name of the instrument definition file(s).
+ * \param admin pointer to an admin class instance.
+ */
+PInstrumentDefXMLParser::PInstrumentDefXMLParser(const QString& fln, PAdmin *admin) : fAdmin(admin)
+{
+  fValid = false;
+  fKeyWord = eEmpty;
+
+  fInstituteName = "";
+  fInstrument = 0;
+  fSetup = 0;
+
+  QFile file(fln);
+  if (!file.open(QFile::ReadOnly | QFile::Text)) {
+    // warning and create default - STILL MISSING
+  }
+
+  fValid = parse(&file);
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>parse the instrument definition xml-file(s).
+ *
+ * \param device QFile object of the instrument definition xml-file(s).
+ *
+ * @return true on success, false otherwise
+ */
+bool PInstrumentDefXMLParser::parse(QIODevice *device)
+{
+  fXml.setDevice(device);
+
+  bool expectChars = false;
+  while (!fXml.atEnd()) {
+    fXml.readNext();
+    if (fXml.isStartDocument()) {
+      startDocument();
+    } else if (fXml.isStartElement()) {
+      startElement();
+      expectChars = true;
+    } else if (fXml.isCharacters() && expectChars) {
+      characters();
+    } else if (fXml.isEndElement()) {
+      endElement();
+      expectChars = false;
+    } else if (fXml.isEndDocument()) {
+      endDocument();
+    }
+  }
+  if (fXml.hasError()) {
+    QString msg;
+    msg = QString("%1 Line %2, column %3").arg(fXml.errorString()).arg(fXml.lineNumber()).arg(fXml.columnNumber());
+    QMessageBox::critical(0, "**ERROR**", msg, QMessageBox::Ok, QMessageBox::NoButton);
+    return false;
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Routine called at the beginning of the XML parsing process.
+ */
+bool PInstrumentDefXMLParser::startDocument()
+{
+  // nothing to be done here for now
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Routine called when a new XML tag is found. Here it is used
+ * to set a tag for filtering afterwards the content.
+ */
+bool PInstrumentDefXMLParser::startElement()
+{
+  QString qName = fXml.name().toString();
+
+  bool ok;
+  double dval;
+  double ival;
+  QString str, errMsg;
+  QStringList strL;
+  QVector<int> forward;
+  QVector<int> backward;
+
+  if (qName == "institute") {
+    fKeyWord = eInstitute;
+  } else if (qName == "instrument") {
+    fKeyWord = eInstrument;
+    QXmlStreamAttributes qAttr = fXml.attributes();
+    if (qAttr.count() != 1) {
+      errMsg = QString("instrument should have 1 attribute, called 'name', found %1").arg(qAttr.count());
+      QMessageBox::critical(0, "ERROR", errMsg);
+      return false;
+    }
+    if (fInstituteName == "") {
+      errMsg = QString("found instrument without institute set.");
+      QMessageBox::critical(0, "ERROR", errMsg);
+      return false;
+    }
+    // create an instrument object
+    fInstrument = new PInstrument();
+    fInstrument->setInstitue(fInstituteName);
+    fInstrument->setName(qAttr.value("name").toString());
+  } else if (qName == "run_name_template") {
+    fKeyWord = eRunNameTemplate;
+  } else if (qName == "beamline") {
+    fKeyWord = eBeamline;
+  } else if (qName == "data_file_format") {
+    fKeyWord = eDataFileFormat;
+  } else if (qName == "tf") {
+    fKeyWord = eTf;
+    QXmlStreamAttributes qAttr = fXml.attributes();
+    fSetup = new PSetup();
+    if (qAttr.count() == 1)
+      fSetup->setName(qAttr.value("name").toString());
+    else
+      fSetup->setName("Default");
+  } else if (qName == "zf") {
+    fKeyWord = eZf;
+    QXmlStreamAttributes qAttr = fXml.attributes();
+    fSetup = new PSetup();
+    if (qAttr.count() == 1)
+      fSetup->setName(qAttr.value("name").toString());
+    else
+      fSetup->setName("Default");
+  } else if (qName == "lf") {
+    fKeyWord = eLf;
+    QXmlStreamAttributes qAttr = fXml.attributes();
+    fSetup = new PSetup();
+    if (qAttr.count() == 1)
+      fSetup->setName(qAttr.value("name").toString());
+    else
+      fSetup->setName("Default");
+  } else if (qName == "no_of_detectors") {
+    fKeyWord = eNoOfDetectors;
+  } else if (qName == "fgb_offset") {
+    fKeyWord = eFgbOffset;
+  } else if (qName == "lgb") {
+    fKeyWord = eLgb;
+  } else if (qName == "asym_bkg_range") {
+    fKeyWord = eBkgRange;
+  } else if (qName == "logic_detector") {
+    QXmlStreamAttributes qAttr = fXml.attributes();
+    if (qAttr.count() < 3)
+      return false;
+    PDetector detect;
+    // detector name
+    str = qAttr.value("name").toString();
+    detect.setName(str);
+    // detector relative phase
+    str = qAttr.value("rel_phase").toString();
+    dval = str.toDouble(&ok);
+    if (!ok) {
+      return false;
+    }
+    detect.setRelGeomPhase(dval);
+    // detector number(s)
+    str = qAttr.value("forward").toString();
+    strL.clear();
+    strL = str.split(' ');
+    forward.clear();
+    for (int j=0; j<strL.size(); j++) {
+      ival = strL[j].toInt(&ok);
+      if (!ok)
+        return false;
+      forward.push_back(ival);
+    }
+    detect.setForwards(forward);
+    fSetup->addDetector(detect);
+  } else if (qName == "logic_asym_detector") {
+    QXmlStreamAttributes qAttr = fXml.attributes();
+    if (qAttr.count() != 5)
+      return false;
+    PDetector detect;
+    // detector name
+    str = qAttr.value("name").toString();
+    detect.setName(str);
+    // detector relative phase
+    str = qAttr.value("rel_phase").toString();
+    dval = str.toDouble(&ok);
+    if (!ok) {
+      return false;
+    }
+    detect.setRelGeomPhase(dval);
+    // detector forward
+    str = qAttr.value("forward").toString();
+    strL.clear();
+    strL = str.split(' ');
+    forward.clear();
+    for (int j=0; j<strL.size(); j++) {
+      ival = strL[j].toInt(&ok);
+      if (!ok)
+        return false;
+      forward.push_back(ival);
+    }
+    detect.setForwards(forward);
+    // detector backward
+    str = qAttr.value("backward").toString();
+    strL.clear();
+    strL = str.split(' ');
+    backward.clear();
+    for (int j=0; j<strL.size(); j++) {
+      ival = strL[j].toInt(&ok);
+      if (!ok)
+        return false;
+      backward.push_back(ival);
+    }
+    detect.setForwards(backward);
+    // detector alpha
+    str = qAttr.value("alpha").toString();
+    dval = str.toDouble(&ok);
+    if (!ok)
+      return false;
+    detect.setAlpha(dval);
+    fSetup->addAsymDetector(detect);
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Routine called when the end XML tag is found. It is used to
+ * put the filtering tag to 'empty'. It also resets the fFunc flag in case
+ * the entry was a theory function.
+ */
+bool PInstrumentDefXMLParser::endElement()
+{
+  fKeyWord = eEmpty;
+
+  QString qName = fXml.name().toString();
+
+  if (qName == "instrument") {
+    // store instrument
+    fAdmin->addInstrument(fInstituteName, *fInstrument);
+
+    // delete instrument object
+    if (fInstrument) {
+      delete fInstrument;
+      fInstrument = 0;
+    }
+  } else if (qName == "zf") {
+    // store setup
+    fInstrument->addSetupZF(*fSetup);
+
+    // delete setup object
+    if (fSetup) {
+      delete fSetup;
+      fSetup = 0;
+    }
+  } else if (qName == "tf") {
+    // store setup
+    fInstrument->addSetupTF(*fSetup);
+
+    // delete setup object
+    if (fSetup) {
+      delete fSetup;
+      fSetup = 0;
+    }
+  } else if (qName == "lf") {
+    // store setup
+    fInstrument->addSetupLF(*fSetup);
+
+    // delete setup object
+    if (fSetup) {
+      delete fSetup;
+      fSetup = 0;
+    }
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>This routine delivers the content of an XML tag. It fills the
+ * content into the load data structure.
+ */
+bool PInstrumentDefXMLParser::characters()
+{
+  QString str = fXml.text().toString();
+  if (str.isEmpty())
+    return true;
+
+  bool ok;
+  int ival, start, end;
+  QString errMsg;
+  QStringList strList;
+
+  switch (fKeyWord) {
+  case eInstitute:
+    fInstituteName = str;
+    break;
+  case eRunNameTemplate:
+    fInstrument->setRunNameTemplate(str);
+    break;
+  case eBeamline:
+    fInstrument->setBeamline(str);
+    break;
+  case eDataFileFormat:
+    fInstrument->setDataFileFormat(str);
+    break;
+  case eNoOfDetectors:
+    if (fSetup == 0) {
+      errMsg = "setup object not found.";
+      QMessageBox::critical(0, "ERROR", errMsg);
+      return false;
+    }
+    ival = str.toInt(&ok);
+    if (!ok) {
+      errMsg = QString("Setup Error: No of Detectors = '%1', which is not an int.").arg(str);
+      QMessageBox::critical(0, "ERROR", errMsg);
+      return false;
+    }
+    fSetup->setNoOfDetectors(ival);
+    break;
+  case eFgbOffset:
+    if (fSetup == 0)
+      return false;
+    ival = str.toInt(&ok);
+    if (!ok)
+      return false;
+    fSetup->setFgbOffset(ival);
+    break;
+  case eLgb:
+    if (fSetup == 0)
+      return false;
+    ival = str.toInt(&ok);
+    if (!ok)
+      return false;
+    fSetup->setLgb(ival);
+    break;
+  case eBkgRange:
+    strList = str.split(' ', Qt::SkipEmptyParts);
+    if (strList.size() != 2) {
+      errMsg = QString("Found wrong Asymmetry background range: '%1'").arg(str);
+      QMessageBox::critical(0, "ERROR", errMsg);
+      return false;
+    }
+    start = strList[0].toInt(&ok);
+    if (!ok) {
+      return false;
+    }
+    end = strList[1].toInt(&ok);
+    if (!ok) {
+      return false;
+    }
+    fSetup->setBkgRange(start, end);
+    break;
+  default:
+    break;
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Called at the end of the XML parse process. It checks if default paths
+ * contain system variables, and if so expand them for the further use.
+ */
+bool PInstrumentDefXMLParser::endDocument()
+{
+  if (fInstituteName == "") {
+    QMessageBox::critical(0, "FATAL ERROR", "Didn't find any institute name in the instrument definitions.");
+    return false;
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+// implementation of PMusrWizDefault class
+//--------------------------------------------------------------------------
+/**
+ * <p>Initializes that PMusrWizDefault object.
+ */
+PMusrWizDefault::PMusrWizDefault()
+{
+  fInstitute = "UnDef";
+  fInstrument = "UnDef";
+  fFitType = "UnDef";
+}
+
+//--------------------------------------------------------------------------
+// implementation of PMusrWizDefaultXMLParser class
+//--------------------------------------------------------------------------
+/**
+ * <p>XML Parser class for the musrWiz default settings.
+ *
+ * \param admin pointer to an admin class instance.
+ */
+PMusrWizDefaultXMLParser::PMusrWizDefaultXMLParser(const QString& fln, PAdmin *admin) : fAdmin(admin)
+{
+  fValid = false;
+  fKeyWord = eEmpty;
+
+  QFile file(fln);
+  if (!file.open(QFile::ReadOnly | QFile::Text)) {
+    // warning and create default - STILL MISSING
+  }
+
+  fValid = parse(&file);
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>parse the musrWiz startup xml-file.
+ *
+ * \param device QFile object of the musrWiz startup xml-file
+ *
+ * @return true on success, false otherwise
+ */
+bool PMusrWizDefaultXMLParser::parse(QIODevice *device)
+{
+  fXml.setDevice(device);
+
+  bool expectChars = false;
+  while (!fXml.atEnd()) {
+    fXml.readNext();
+    if (fXml.isStartDocument()) {
+      startDocument();
+    } else if (fXml.isStartElement()) {
+      startElement();
+      expectChars = true;
+    } else if (fXml.isCharacters() && expectChars) {
+      characters();
+    } else if (fXml.isEndElement()) {
+      endElement();
+      expectChars = false;
+    } else if (fXml.isEndDocument()) {
+      endDocument();
+    }
+  }
+  if (fXml.hasError()) {
+    QString msg;
+    msg = QString("%1 Line %2, column %3").arg(fXml.errorString()).arg(fXml.lineNumber()).arg(fXml.columnNumber());
+    QMessageBox::critical(0, "**ERROR**", msg, QMessageBox::Ok, QMessageBox::NoButton);
+    return false;
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Routine called at the beginning of the XML parsing process.
+ */
+bool PMusrWizDefaultXMLParser::startDocument()
+{
+  // nothing to be done here for now
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Routine called when a new XML tag is found. Here it is used
+ * to set a tag for filtering afterwards the content.
+ */
+bool PMusrWizDefaultXMLParser::startElement()
+{
+  QString qName = fXml.name().toString();
+
+  if (qName == "institute") {
+    fKeyWord = eInstitute;
+  } else if (qName == "instrument") {
+    fKeyWord = eInstrument;
+  } else if (qName == "fit_type") {
+    fKeyWord = eFitType;
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Routine called when the end XML tag is found. It is used to
+ * put the filtering tag to 'empty'. It also resets the fFunc flag in case
+ * the entry was a theory function.
+ */
+bool PMusrWizDefaultXMLParser::endElement()
+{
+  fKeyWord = eEmpty;
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>This routine delivers the content of an XML tag. It fills the
+ * content into the load data structure.
+ */
+bool PMusrWizDefaultXMLParser::characters()
+{
+  QString str = fXml.text().toString();
+  if (str.isEmpty())
+    return true;
+
+  switch (fKeyWord) {
+  case eInstitute:
+    fDefault.setInstitute(str);
+    break;
+  case eInstrument:
+    fDefault.setInstrument(str);
+    break;
+  case eFitType:
+    fDefault.setFitType(str);
+    break;
+  default:
+    break;
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Called at the end of the XML parse process.
+ */
+bool PMusrWizDefaultXMLParser::endDocument()
+{
+  fAdmin->fDefault = fDefault;
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+// implementation of PAdmin class
+//--------------------------------------------------------------------------
+/**
+ * <p>Initializes that PAdmin object, and calls the XML parser which feeds
+ * the object variables.
+ */
+PAdmin::PAdmin() : QObject()
+{
+  QString path, fln, pathFln;
+  int count = 0;
+
+  fValid = true;
+
+  // load musrWiz default settings
+  // 1st: check local directory
+  pathFln = QString("./musrWiz.xml");
+  if (!QFile::exists(pathFln)) {
+    // 2nd: check $HOME/.musrfit/musrWiz/musrWiz.xml
+    path = std::getenv("HOME");
+    pathFln = path + "/.musrfit/musrWiz/musrWiz.xml";
+    if (loadMusrWizDefault(pathFln)) {
+      QMessageBox::warning(0, "WARNING", "Couldn't find musrWiz.xml file.");
+    }
+  }
+
+  // load musrfit funcs
+  // 1st: check local directory
+  pathFln = QString("./musrfit_funcs.xml");
+  if (!QFile::exists(pathFln)) {
+    // 2nd: check $HOME/.musrfit/musrWiz/musrfit_funcs.xml
+    path = std::getenv("HOME");
+    pathFln = path + "/.musrfit/musrWiz/musrfit_funcs.xml";
+    if (loadMusrfitFunc(pathFln)) {
+      fValid = false;
+      QMessageBox::critical(0, "FATAL ERROR", "Couldn't find any musrfit function definitions.");
+      return;
+    }
+  }
+
+  // load instrument definitions
+  QStringList instStr;
+  instStr << "psi" << "triumf" << "isis" << "jparc";
+
+  for (int i=0; i<instStr.size(); i++) {
+    // XML Parser part
+    // 1st: check local directory
+    path = QString("./");
+    fln = QString("instrument_def_%1.xml").arg(instStr[i]);
+    pathFln = path + fln;
+    if (!QFile::exists(pathFln)) {
+      // 2nd: check $HOME/.musrfit/musrWiz/instrument_def_XXX.xml
+      path = std::getenv("HOME");
+      path += "/.musrfit/musrWiz/";
+      if (loadInstrumentDef(path, fln)) {
+        fValid = false;
+        return;
+      } else {
+        count++;
+      }
+    }
+  }
+
+  if (count == 0) {
+    QMessageBox::critical(0, "FATAL ERROR", "Couldn't find any instrument definition.");
+    fValid = false;
+  }
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PAdmin::getInstituteList
+ * @return
+ */
+QStringList PAdmin::getInstituteList()
+{
+  QStringList list;
+
+  for (int i=0; i<fInstitute.size(); i++) {
+    list << fInstitute[i].getName();
+  }
+
+  return list;
+}
+
+//--------------------------------------------------------------------------
+QStringList PAdmin::getInstrumentList(QString institute)
+{
+  QStringList list;
+
+  // find institute
+  int idx=-1;
+  for (int i=0; i<fInstitute.size(); i++) {
+    if (fInstitute[i].getName() == institute) {
+      idx = i;
+      break;
+    }
+  }
+
+  // institute not found
+  if (idx == -1)
+    return list;
+
+  // create instrument list
+  QVector<PInstrument> instrument = fInstitute[idx].getInstruments();
+  for (int i=0; i<instrument.size(); i++) {
+    list << instrument[i].getName();
+  }
+
+  return list;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PAdmin::addInstrument
+ * @param institute
+ * @param instrument
+ * @return
+ */
+int PAdmin::addInstrument(QString institute, PInstrument instrument)
+{
+  // find institute
+  int idx = -1;
+  for (int i=0; i<fInstitute.size(); i++) {
+    if (fInstitute[i].getName() == institute) {
+      idx = i;
+      break;
+    }
+  }
+
+  if (idx == -1) {
+    PInstitute inst;
+    inst.setName(institute);
+    fInstitute.push_back(inst);
+    idx = fInstitute.size()-1;
+  }
+
+  fInstitute[idx].addInstrument(instrument);
+
+  return 0;
+}
+
+//--------------------------------------------------------------------------
+/**
+ *
+ */
+PTheoTemplate PAdmin::getTheoTemplate(int idx)
+{
+  PTheoTemplate theoTemplate;
+
+  if ((idx < 0) || (idx >= fTheoTemplate.size()))
+    return theoTemplate;
+
+  return fTheoTemplate[idx];
+}
+
+//--------------------------------------------------------------------------
+/**
+ *
+ */
+PMusrfitFunc PAdmin::getMusrfitFunc(QString name)
+{
+  PMusrfitFunc func;
+
+  int idx=-1;
+  for (int i=0; i<fMusrfitFunc.size(); i++) {
+    if ((fMusrfitFunc[i].getName() == name) || (fMusrfitFunc[i].getAbbrv() == name)) {
+      idx = i;
+      break;
+    }
+  }
+
+  if (idx != -1)
+    func = fMusrfitFunc[idx];
+
+  return func;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>dump all the instrument defs to stdout. This routine is there for debug
+ * purposes only.
+ */
+void PAdmin::dump(int tag)
+{
+  if (tag == -1)
+    return;
+
+  if (tag != 1) {
+    QVector<PInstrument> instrument;
+    QVector<PSetup> setup;
+    PDetector *detec;
+    QVector<int> forward;
+    QString forwardStr;
+    QVector<int> backward;
+    QString backwardStr;
+
+    for (int i=0; i<fInstitute.size(); i++) {
+      qInfo() << "debug> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-";
+      qInfo() << "debug> Institute: " << fInstitute[i].getName();
+      qInfo() << "debug> ----";
+      instrument = fInstitute[i].getInstruments();
+      for (int j=0; j<instrument.size(); j++) {
+        qInfo() << "debug> ----";
+        qInfo() << "debug> Instrument Name: " << instrument[j].getName();
+        // all TF setups
+        setup = instrument[j].getTFSetups();
+        for (int k=0; k<setup.size(); k++) {
+          qInfo() << "debug> ----";
+          qInfo() << "debug> TF setup, name: " << setup[k].getName();
+          qInfo() << "debug>   No of Detectors: " << setup[k].getNoOfDetectors();
+          qInfo() << "debug>   fgb Offset: " << setup[k].getFgbOffset();
+          qInfo() << "debug>   lgb: " << setup[k].getLgb();
+          qInfo() << "debug>   asymmetry bkg range: " << setup[k].getBkgStartBin() << " " << setup[k].getBkgEndBin();
+          qInfo() << "debug>   ----";
+          for (int l=0; l<setup[k].getNoOfLogicalDetectors(); l++) {
+            detec = setup[k].getDetector(l);
+            if (detec == 0) {
+              qInfo() << "debug> detec == 0 for k=" << k << ", l=" << l;
+              return;
+            }
+            forward = detec->getForwards();
+            forwardStr = "";
+            for (int m=0; m<forward.size(); m++)
+              forwardStr += QString("%1;").arg(forward[m]);
+            qInfo() << "debug>   detector : " << detec->getName() << ", " << detec->getRelGeomPhase() << "°, " << forwardStr;
+          }
+          qInfo() << "debug>   ----";
+          for (int l=0; l<setup[k].getNoOfLogicalAsymDetectors(); l++) {
+            detec = setup[k].getAsymDetector(l);
+            if (detec == 0) {
+              qInfo() << "debug> detec == 0 for k=" << k << ", l=" << l;
+              return;
+            }
+            forward = detec->getForwards();
+            forwardStr = "";
+            backward = detec->getBackwards();
+            backwardStr = "";
+            for (int m=0; m<forward.size(); m++) {
+              forwardStr += QString("%1;").arg(forward[m]);
+              backwardStr += QString("%1;").arg(backward[m]);
+            }
+            qInfo() << "debug>   detectorAsym : " << detec->getName() << ", " << detec->getRelGeomPhase() << "°, " << forwardStr << "/" << backwardStr << ", alpha=" << detec->getAlpha();
+          }
+        }
+        // all ZF setups
+        setup.clear();
+        setup = instrument[j].getZFSetups();
+        for (int k=0; k<setup.size(); k++) {
+          qInfo() << "debug> ----";
+          qInfo() << "debug> ZF setup, name: " << setup[k].getName();
+          qInfo() << "debug>   No of Detectors: " << setup[k].getNoOfDetectors();
+          qInfo() << "debug>   fgb Offset: " << setup[k].getFgbOffset();
+          qInfo() << "debug>   lgb: " << setup[k].getLgb();
+          qInfo() << "debug>   asymmetry bkg range: " << setup[k].getBkgStartBin() << " " << setup[k].getBkgEndBin();
+          qInfo() << "debug>   ----";
+          for (int l=0; l<setup[k].getNoOfLogicalAsymDetectors(); l++) {
+            detec = setup[k].getAsymDetector(l);
+            if (detec == 0) {
+              qInfo() << "debug> detec == 0 for k=" << k << ", l=" << l;
+              return;
+            }
+            forward = detec->getForwards();
+            forwardStr = "";
+            backward = detec->getBackwards();
+            backwardStr = "";
+            for (int m=0; m<forward.size(); m++) {
+              forwardStr += QString("%1;").arg(forward[m]);
+              backwardStr += QString("%1;").arg(backward[m]);
+            }
+            qInfo() << "debug>   detectorAsym : " << detec->getName() << ", " << detec->getRelGeomPhase() << "°, " << forwardStr << "/" << backwardStr << ", alpha=" << detec->getAlpha();
+          }
+        }
+        // all LF setups
+        setup.clear();
+        setup = instrument[j].getLFSetups();
+        for (int k=0; k<setup.size(); k++) {
+          qInfo() << "debug> ----";
+          qInfo() << "debug> LF setup, name: " << setup[k].getName();
+          qInfo() << "debug>   No of Detectors: " << setup[k].getNoOfDetectors();
+          qInfo() << "debug>   fgb Offset: " << setup[k].getFgbOffset();
+          qInfo() << "debug>   lgb: " << setup[k].getLgb();
+          qInfo() << "debug>   asymmetry bkg range: " << setup[k].getBkgStartBin() << " " << setup[k].getBkgEndBin();
+          qInfo() << "debug>   ----";
+          for (int l=0; l<setup[k].getNoOfLogicalAsymDetectors(); l++) {
+            detec = setup[k].getAsymDetector(l);
+            if (detec == 0) {
+              qInfo() << "debug> detec == 0 for k=" << k << ", l=" << l;
+              return;
+            }
+            forward = detec->getForwards();
+            forwardStr = "";
+            backward = detec->getBackwards();
+            backwardStr = "";
+            for (int m=0; m<forward.size(); m++) {
+              forwardStr += QString("%1;").arg(forward[m]);
+              backwardStr += QString("%1;").arg(backward[m]);
+            }
+            qInfo() << "debug>   detectorAsym : " << detec->getName() << ", " << detec->getRelGeomPhase() << "°, " << forwardStr << "/" << backwardStr << ", alpha=" << detec->getAlpha();
+          }
+        }
+      }
+      qInfo() << "debug> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-";
+    }
+  } else if (tag != 0) {
+    qInfo() << "debug> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-";
+    qInfo() << "debug> Available Musrfit Funcs of the Wizard";
+    qInfo() << "debug> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-";
+    PMusrfitFunc fun;
+    for (int i=0; i<fMusrfitFunc.size(); i++) {
+      fun = fMusrfitFunc[i];
+      qInfo() << "debug> " << i << ": " << fun.getName() << " / " << fun.getAbbrv();
+      qInfo() << "deubg> " << i << ": no of Parameters: " << fun.getNoOfParam();
+      for (int j=0; j<fun.getFuncParams()->size(); j++) {
+        qInfo() << "debug> " << i << "/" << j << ": param name: " << fun.getFuncParam(j).getParamName() << ", val: " << fun.getFuncParam(j).getParamValue();
+      }
+      qInfo() << "debug> ----";
+    }
+    qInfo() << "debug> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-";
+  }
+}
+
+//--------------------------------------------------------------------------
+/**
+ *
+ */
+PInstrument *PAdmin::getInstrument(QString institute, QString instrument)
+{
+  for (int i=0; i<fInstitute.size(); i++) {
+    if (!fInstitute[i].getName().compare(institute, Qt::CaseInsensitive))
+      return fInstitute[i].getInstrument(instrument);
+  }
+
+  return 0;
+}
+
+//--------------------------------------------------------------------------
+/**
+ *
+ */
+int PAdmin::loadMusrWizDefault(QString fln)
+{
+  // check if fln already exists
+  if (!QFile::exists(fln)) {
+    QFile file(":/musrWiz.xml");
+    if (file.exists()) {
+      // get $HOME
+      QProcessEnvironment procEnv = QProcessEnvironment::systemEnvironment();
+      QString pathName = procEnv.value("HOME", "");
+      pathName += "/.musrfit/musrWiz";
+      // check if the directory $HOME/.musrfit/musrWiz exists if not create it
+      QDir dir(pathName);
+      if (!dir.exists()) {
+        // directory $HOME/.musrfit/musredit does not exist hence create it
+        dir.mkpath(pathName);
+      }
+      pathName += "/musrWiz.xml";
+      if (file.copy(pathName)) {
+        cout << "**INFO** '" << pathName.toLatin1().data() << "' did not exist, hence it is created." << endl;
+      } else {
+        QString msg = QString("Couldn't create '%1'. Please check.").arg(pathName);
+        QMessageBox::critical(0, "ERROR", msg);
+        return 1;
+      }
+    }
+  }
+
+  PMusrWizDefaultXMLParser handler(fln, this);
+  if (!handler.isValid()) {
+    QString errMsg = QString("Error parsing %1 file.").arg(fln);
+    QMessageBox::critical(0, "ERROR", errMsg);
+    return 1;
+  }
+  return 0;
+}
+
+//--------------------------------------------------------------------------
+/**
+ *
+ */
+int PAdmin::loadMusrfitFunc(QString fln)
+{
+  // check if fln already exists
+  if (!QFile::exists(fln)) {
+    QFile file(":/func_defs/musrfit_funcs.xml");
+    if (file.exists()) {
+      // get $HOME
+      QProcessEnvironment procEnv = QProcessEnvironment::systemEnvironment();
+      QString pathName = procEnv.value("HOME", "");
+      pathName += "/.musrfit/musrWiz/musrfit_funcs.xml";
+      if (file.copy(pathName)) {
+        cout << "**INFO** '" << pathName.toLatin1().data() << "' did not exist, hence it is created." << endl;
+      } else {
+        QString msg = QString("Couldn't create '%1'. Please check.").arg(pathName);
+        QMessageBox::critical(0, "ERROR", msg);
+        return 1;
+      }
+    }
+  }
+
+  PFuncXMLParser handler(fln, this);
+  if (!handler.isValid()) {
+    QString errMsg = QString("Error parsing %1 musrfit func file.").arg(fln);
+    QMessageBox::critical(0, "ERROR", errMsg);
+    return 1;
+  }
+  return 0;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PAdmin::loadInstrumentDef
+ * @param path
+ * @param fln
+ * @return
+ */
+int PAdmin::loadInstrumentDef(QString path, QString fln)
+{
+  // check if fln already exists
+  QString pathFln = path+fln;
+  if (!QFile::exists(pathFln)) {
+    QString resFln = QString(":/instrument_defs/%1").arg(fln);
+    QFile file(resFln);
+    if (file.exists()) {
+      // get $HOME
+      QProcessEnvironment procEnv = QProcessEnvironment::systemEnvironment();
+      QString pathName = procEnv.value("HOME", "");
+      pathName += "/.musrfit/musrWiz/" + fln;
+      if (file.copy(pathName)) {
+        cout << "**INFO** '" << pathName.toLatin1().data() << "' did not exist, hence it is created." << endl;
+      } else {
+        QString msg = QString("Couldn't create '%1'. Please check.").arg(pathName);
+        QMessageBox::critical(0, "ERROR", msg);
+        return 1;
+      }
+    } else {
+      return 0;
+    }
+  }
+
+  PInstrumentDefXMLParser handler(pathFln, this);
+  if (!handler.isValid()) {
+    QString errMsg = QString("Error parsing %1 instrument def file.").arg(pathFln);
+    QMessageBox::critical(0, "ERROR", errMsg);
+    return 1;
+  }
+
+  return 0;
+}
diff --git a/src/musredit_qt6/musrWiz/PAdmin.h b/src/musredit_qt6/musrWiz/PAdmin.h
new file mode 100644
index 00000000..6d7175a6
--- /dev/null
+++ b/src/musredit_qt6/musrWiz/PAdmin.h
@@ -0,0 +1,203 @@
+/****************************************************************************
+
+  PAdmin.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2016 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PADMIN_H_
+#define _PADMIN_H_
+
+#include <QObject>
+#include <QVector>
+#include <QXmlStreamReader>
+#include <QIODevice>
+#include <QProcessEnvironment>
+#include <QDir>
+
+#include "PTheoTemplate.h"
+#include "PMusrfitFunc.h"
+#include "PInstrumentDef.h"
+
+class PAdmin;
+
+//---------------------------------------------------------------------------
+class PFuncXMLParser
+{
+  public:
+    PFuncXMLParser(const QString &fln, PAdmin*);
+    virtual ~PFuncXMLParser() {}
+
+    virtual bool isValid() { return fValid; }
+
+  private:
+    enum EFuncKeyWords {eEmpty,
+                        eTemplateName, eTemplateTheo, eTemplateFunc,
+                        eName, eAbbrv, eNoOfParam, eParam,
+                        eParamName, eParamValue, eParamMap};
+
+    bool parse(QIODevice *device);
+    bool startDocument();
+    bool startElement();
+    bool endElement();
+    bool characters();
+    bool endDocument();
+
+
+    QXmlStreamReader fXml;     ///< xml stream reader object
+    bool             fValid;   ///< flag showing if XML read has been successful
+    EFuncKeyWords    fKeyWord; ///< key word tag to know how to handle the content
+    PAdmin           *fAdmin;  ///< a pointer to the main administration class object
+
+    PTheoTemplate fTheoTemplate;
+    PMusrfitFunc fFunc;
+    PFuncParam fParam;
+};
+
+//---------------------------------------------------------------------------
+class PInstrumentDefXMLParser
+{
+  public:
+    PInstrumentDefXMLParser(const QString &fln, PAdmin*);
+    virtual ~PInstrumentDefXMLParser() {}
+
+    virtual bool isValid() { return fValid; }
+
+  private:
+    enum EKeyWords {eEmpty, eInstitute, eInstrument, eRunNameTemplate,
+                    eBeamline, eDataFileFormat, eTf, eZf, eLf,
+                    eNoOfDetectors, eFgbOffset, eLgb, eBkgRange,
+                    eLogicDetector};
+
+    bool parse(QIODevice *device);
+    bool startDocument();
+    bool startElement();
+    bool endElement();
+    bool characters();
+    bool endDocument();
+
+    QXmlStreamReader fXml;   ///< xml stream reader object
+    bool             fValid; ///< flag showing if XML read has been successful
+    EKeyWords fKeyWord; ///< key word tag to know how to handle the content
+    PAdmin    *fAdmin;  ///< a pointer to the main administration class object
+
+    QString fInstituteName;
+    PInstrument *fInstrument;
+    PSetup *fSetup;
+};
+
+//---------------------------------------------------------------------------
+class PMusrWizDefault
+{
+  public:
+    PMusrWizDefault();
+    ~PMusrWizDefault() {}
+
+    QString getInstitute() { return fInstitute; }
+    QString getInstrument() { return fInstrument; }
+    QString getFitType() { return fFitType; }
+
+    void setInstitute(QString str) { fInstitute = str; }
+    void setInstrument(QString str) { fInstrument = str; }
+    void setFitType(QString str) { fFitType = str; }
+
+  private:
+    QString fInstitute;
+    QString fInstrument;
+    QString fFitType;
+};
+
+//---------------------------------------------------------------------------
+class PMusrWizDefaultXMLParser
+{
+  public:
+    PMusrWizDefaultXMLParser(const QString &fln, PAdmin*);
+    virtual ~PMusrWizDefaultXMLParser() {}
+
+    virtual bool isValid() { return fValid; }
+
+  private:
+    enum EKeyWords {eEmpty, eInstitute, eInstrument, eFitType};
+
+    bool parse(QIODevice *device);
+    bool startDocument();
+    bool startElement();
+    bool endElement();
+    bool characters();
+    bool endDocument();
+
+    QXmlStreamReader fXml;   ///< xml stream reader object
+    bool             fValid; ///< flag showing if XML read has been successful
+    EKeyWords fKeyWord;    ///< key word tag to know how to handle the content
+    PAdmin    *fAdmin;     ///< a pointer to the main administration class object
+
+    PMusrWizDefault fDefault;
+};
+
+//---------------------------------------------------------------------------
+class PAdmin : public QObject
+{
+  public:
+    PAdmin();
+    ~PAdmin() {}
+
+    bool IsValid() { return fValid; }
+    void dump(int tag);
+
+    QString getDefaultInstitute() { return fDefault.getInstitute(); }
+    QString getDefaultInstrument() { return fDefault.getInstrument(); }
+    QString getDefaultFitType() { return fDefault.getFitType(); }
+
+    QStringList getInstituteList();
+    QStringList getInstrumentList(QString institute);
+    PInstrument *getInstrument(QString institute, QString instrument);
+    int getTheoTemplateSize() { return fTheoTemplate.size(); }
+    QVector<PTheoTemplate> getTheoTemplates() { return fTheoTemplate; }
+    PTheoTemplate getTheoTemplate(int idx);
+    int getMusrfitFuncSize() { return fMusrfitFunc.size(); }
+    QVector<PMusrfitFunc> getMusrfitFunc() { return fMusrfitFunc; }
+    PMusrfitFunc getMusrfitFunc(QString name);
+
+  protected:
+    int addInstrument(QString institute, PInstrument instrument);
+
+  private:
+    friend class PFuncXMLParser;
+    friend class PInstrumentDefXMLParser;
+    friend class PMusrWizDefaultXMLParser;
+
+    bool fValid;
+
+    PMusrWizDefault fDefault;
+    QVector<PInstitute> fInstitute;
+    QVector<PTheoTemplate> fTheoTemplate;
+    QVector<PMusrfitFunc> fMusrfitFunc;
+
+    int loadMusrWizDefault(QString fln);
+    int loadMusrfitFunc(QString fln);
+    int loadInstrumentDef(QString path, QString fln);
+};
+
+#endif // _PADMIN_H_
diff --git a/src/musredit_qt6/musrWiz/PInstrumentDef.cpp b/src/musredit_qt6/musrWiz/PInstrumentDef.cpp
new file mode 100644
index 00000000..659e3c4a
--- /dev/null
+++ b/src/musredit_qt6/musrWiz/PInstrumentDef.cpp
@@ -0,0 +1,153 @@
+/***************************************************************************
+
+  PInstrumentDef.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include "PInstrumentDef.h"
+
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ *
+ */
+PSetup::PSetup()
+{
+  fName = "";
+  fNoOfDetectors = -1;
+  fFgbOffset = -1;
+  fLgb = -1;
+  fBkgStartBin = -1;
+  fBkgEndBin = -1;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PSetup::getDetector
+ * @param idx
+ * @return
+ */
+PDetector* PSetup::getDetector(int idx)
+{
+  if (idx >= fLogicDetectors.size())
+    return 0;
+
+  return &fLogicDetectors[idx];
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PSetup::getAsymDetector
+ * @param idx
+ * @return
+ */
+PDetector* PSetup::getAsymDetector(int idx)
+{
+  if (idx >= fLogicAsymDetectors.size())
+    return 0;
+
+  return &fLogicAsymDetectors[idx];
+}
+
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ *
+ */
+PInstrument::PInstrument()
+{
+  fRunNameTemplate = "";
+  fBeamline = "";
+  fDataFileFormat = "";
+  fInstitue = "";
+  fName = "";
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PInstrument::getZFSetup
+ * @param name
+ * @return
+ */
+PSetup* PInstrument::getZFSetup(QString name)
+{
+  for (int i=0; i<fZF.size(); i++) {
+    if (fZF[i].getName() == name)
+      return &fZF[i];
+  }
+  return 0;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PInstrument::getTFSetup
+ * @param name
+ * @return
+ */
+PSetup* PInstrument::getTFSetup(QString name)
+{
+  for (int i=0; i<fTF.size(); i++) {
+    if (fTF[i].getName() == name)
+      return &fTF[i];
+  }
+  return 0;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PInstrument::getLFSetup
+ * @param name
+ * @return
+ */
+PSetup* PInstrument::getLFSetup(QString name)
+{
+  for (int i=0; i<fLF.size(); i++) {
+    if (fLF[i].getName() == name)
+      return &fLF[i];
+  }
+  return 0;
+}
+
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ *
+ */
+PInstitute::PInstitute()
+{
+  fName = "";
+}
+
+//--------------------------------------------------------------------------
+/**
+ *
+ */
+PInstrument *PInstitute::getInstrument(QString name)
+{
+  for (int i=0; i<fInstrument.size(); i++) {
+    if (fInstrument[i].getName() == name)
+      return &fInstrument[i];
+  }
+
+  return 0;
+}
diff --git a/src/musredit_qt6/musrWiz/PInstrumentDef.h b/src/musredit_qt6/musrWiz/PInstrumentDef.h
new file mode 100644
index 00000000..3fc07243
--- /dev/null
+++ b/src/musredit_qt6/musrWiz/PInstrumentDef.h
@@ -0,0 +1,163 @@
+/***************************************************************************
+
+  PInstrumentDef.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PINSTRUMENTDEF_H_
+#define _PINSTRUMENTDEF_H_
+
+#include <QString>
+#include <QVector>
+
+//---------------------------------------------------------------------------
+class PDetector
+{
+  public:
+    PDetector() {}
+    ~PDetector() {}
+
+    void setName(QString str) { fName = str; }
+    void setRelGeomPhase(double phase) { fRelGeomPhase = phase; }
+    void setForwards(QVector<int> num) { fForward = num; }
+    void setBackwards(QVector<int> num) { fBackward = num; }
+    void setAlpha(double alpha) { fAlpha = alpha; }
+
+    QString getName() { return fName; }
+    double getRelGeomPhase() { return fRelGeomPhase; }
+    QVector<int> getForwards() { return fForward; }
+    QVector<int> getBackwards() { return fBackward; }
+    double getAlpha() { return fAlpha; }
+
+  private:
+    QString fName;
+    QVector<int> fForward;
+    QVector<int> fBackward;
+    double fAlpha;
+    double  fRelGeomPhase;
+};
+
+//---------------------------------------------------------------------------
+class PSetup
+{
+  public:
+    PSetup();
+    ~PSetup() {}
+
+    void setName(QString str) { fName = str; }
+    void setNoOfDetectors(int no) { fNoOfDetectors = no; }
+    void setFgbOffset(int fgbOffset) { fFgbOffset = fgbOffset; }
+    void setLgb(int lgb) { fLgb = lgb; }
+    void setBkgRange(int start, int end) { fBkgStartBin = start; fBkgEndBin = end; }
+    void addDetector(PDetector detector) { fLogicDetectors.push_back(detector); }
+    void addAsymDetector(PDetector detector) { fLogicAsymDetectors.push_back(detector); }
+
+    QString getName() { return fName; }
+    int getNoOfDetectors() { return fNoOfDetectors; }
+    int getNoOfLogicalDetectors() { return fLogicDetectors.size(); }
+    int getNoOfLogicalAsymDetectors() { return fLogicAsymDetectors.size(); }
+    int getFgbOffset() { return fFgbOffset; }
+    int getLgb() { return fLgb; }
+    int getBkgStartBin() { return fBkgStartBin; }
+    int getBkgEndBin() { return fBkgEndBin; }
+    PDetector* getDetector(int idx);
+    PDetector* getAsymDetector(int idx);
+
+  private:
+    QString fName;
+    int fNoOfDetectors;
+    int fFgbOffset;
+    int fLgb;
+    int fBkgStartBin;
+    int fBkgEndBin;
+
+    QVector<PDetector> fLogicDetectors;
+    QVector<PDetector> fLogicAsymDetectors;
+};
+
+//---------------------------------------------------------------------------
+class PInstrument
+{
+  public:
+    PInstrument();
+    ~PInstrument() {}
+
+    void setRunNameTemplate(QString str) { fRunNameTemplate = str; }
+    void setBeamline(QString str) { fBeamline = str; }
+    void setDataFileFormat(QString str) { fDataFileFormat = str; }
+    void setInstitue(QString str) { fInstitue = str; }
+    void setName(QString str) { fName = str; }
+
+    void addSetupZF(PSetup zf) { fZF.push_back(zf); }
+    void addSetupTF(PSetup tf) { fTF.push_back(tf); }
+    void addSetupLF(PSetup lf) { fLF.push_back(lf); }
+
+    QString getRunNameTemplate() { return fRunNameTemplate; }
+    QString getBeamline() { return fBeamline; }
+    QString getDataFileFormat() { return fDataFileFormat; }
+    QString getInstitute() { return fInstitue; }
+    QString getName() { return fName; }
+
+    QVector<PSetup>  getZFSetups() { return fZF; }
+    QVector<PSetup>  getTFSetups() { return fTF; }
+    QVector<PSetup>  getLFSetups() { return fLF; }
+
+    PSetup* getZFSetup(QString name="");
+    PSetup* getTFSetup(QString name="");
+    PSetup* getLFSetup(QString name="");
+
+  private:
+    QString fRunNameTemplate;
+    QString fBeamline;
+    QString fDataFileFormat;
+    QString fInstitue;
+    QString fName;
+
+    QVector<PSetup> fZF;
+    QVector<PSetup> fTF;
+    QVector<PSetup> fLF;
+};
+
+//---------------------------------------------------------------------------
+class PInstitute
+{
+  public:
+    PInstitute();
+    ~PInstitute() {}
+
+    void setName(QString str) { fName = str; }
+    void addInstrument(PInstrument instrument) { fInstrument.push_back(instrument); }
+
+    QString getName() { return fName; }
+    QVector<PInstrument> getInstruments() { return fInstrument; }
+    PInstrument *getInstrument(QString name);
+
+  private:
+    QString fName;
+    QVector<PInstrument> fInstrument;
+};
+
+#endif // _PINSTRUMENTDEF_H_
diff --git a/src/musredit_qt6/musrWiz/PMusrWiz.cpp b/src/musredit_qt6/musrWiz/PMusrWiz.cpp
new file mode 100644
index 00000000..83ed8f9a
--- /dev/null
+++ b/src/musredit_qt6/musrWiz/PMusrWiz.cpp
@@ -0,0 +1,2583 @@
+/***************************************************************************
+
+  PMusrWiz.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2021 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <iostream>
+
+#include <QtWidgets>
+#include <QObject>
+#include <QPixmap>
+#include <QLabel>
+#include <QFormLayout>
+#include <QVBoxLayout>
+#include <QFrame>
+#include <QRect>
+#include <QIntValidator>
+#include <QDate>
+#include <QMessageBox>
+#include <QFile>
+#include <QTextStream>
+#include <QInputDialog>
+
+#include <QDebug>
+
+#include "musrWiz.h"
+#include "PTheoTemplate.h"
+#include "PMusrfitFunc.h"
+#include "PMusrWiz.h"
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ * @brief PMsrData::PMsrData
+ */
+PMsrData::PMsrData()
+{
+  fTemplate = -1;
+
+  fMsrFileName = QString("");
+  fRunNumber = -1;
+  fInstitute = "PSI";
+  fInstrument = "HAL9500";
+  fFitType = FIT_TYPE_SINGLE_HISTO;
+  fTypeOfMeasurement = MEASURE_UNDEF;
+  fT0Tag = T0_FROM_FILE;
+  fT0 = -1;
+  QDate date = QDate::currentDate();
+  fYear = QString("%1").arg(date.year());
+
+  fPacking = 1;
+  fFitStart = 0.0;
+  fFitEnd = 10.0;
+  fCommands = "";
+
+  fTheo = "";
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMsrData::~PMsrData
+ */
+PMsrData::~PMsrData()
+{
+
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMsrData::getFitTypeString
+ * @return
+ */
+QString PMsrData::getFitTypeString()
+{
+  QString str("UnDef");
+
+  switch (fFitType) {
+  case FIT_TYPE_ASYMMETRY:
+    str = QString("Asymmetry");
+    break;
+  case FIT_TYPE_ASYMMETRY_RRF:
+    str = QString("Asymmetry RRF");
+    break;
+  case FIT_TYPE_SINGLE_HISTO:
+    str = QString("Single Histo");
+    break;
+  case FIT_TYPE_SINGLE_HISTO_RRF:
+    str = QString("Single Histo RRF");
+    break;
+  case FIT_TYPE_MU_MINUS:
+    str = QString("Mu Minus");
+    break;
+  case FIT_TYPE_NONE_MUSR:
+    str = QString("None Musr");
+    break;
+  case FIT_TYPE_UNDEF:
+  default:
+    break;
+  }
+
+  return str;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMsrData::setParam
+ * @param idx
+ * @param param
+ */
+void PMsrData::setParam(int idx, PParam param)
+{
+  if (idx >= fParam.size())
+    fParam.resize(idx+1);
+
+  fParam[idx] = param;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMsrData::setMap
+ * @param idx
+ * @param map
+ */
+void PMsrData::setMap(int idx, PParam map)
+{
+  if (idx >= fMap.size())
+    fMap.resize(idx+1);
+
+  fMap[idx] = map;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMsrData::appendParam
+ * @param param
+ */
+void PMsrData::appendParam(QVector<PParam> param)
+{
+  // check if parameter is aleady present. If yes, ignore it, otherwise add it
+  bool present = false;
+  for (int i=0; i<param.size(); i++) {
+    present = false;
+    for (int j=0; j<fParam.size(); j++) {
+      if (param[i].getNumber() == fParam[j].getNumber()) { // only check parameter number, NOT name
+        present = true;
+      }
+    }
+    if (!present) { // add it
+      fParam.push_back(param[i]);
+    }
+  }
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMsrData::appendMap
+ * @param map
+ */
+void PMsrData::appendMap(QVector<PParam> map)
+{
+  // check if map is aleady present. If yes, replace it, otherwise add it
+  bool present = false;
+  for (int i=0; i<map.size(); i++) {
+    present = false;
+    for (int j=0; j<fMap.size(); j++) {
+      if (map[i].getNumber() == fMap[j].getNumber()) {
+        present = true;
+        fMap[j] = map[i];
+      }
+    }
+    if (!present) { // add it
+      fMap.push_back(map[i]);
+    }
+  }
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMsrData::setMapTemplateName
+ * @param idx
+ * @param name
+ */
+void PMsrData::setMapTemplateName(int idx, QString name)
+{
+  if ((idx < 0) || (idx > fMap.size()))
+    return;
+
+  fMap[idx].setName(name);
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMsrData::setFunc
+ * @param funNo
+ * @param str
+ */
+void PMsrData::setFunc(int funNo, QString str)
+{
+  if (funNo < 0)
+    return;
+
+  // check if not already present
+  for (int i=0; i<fFunc.size(); i++) {
+    if (fFunc[i].number == funNo) {
+      if (str != "??")
+        fFunc[i].fun = str;
+      return;
+    }
+  }
+
+  PFunc fun;
+  fun.number = funNo;
+  fun.fun = str;
+
+  fFunc.append(fun);
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMsrData::getParam
+ * @param idx
+ * @return
+ */
+PParam PMsrData::getParam(int idx)
+{
+  PParam param;
+
+  if (idx > fParam.size())
+    return param;
+
+  return fParam[idx];
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMsrData::getMap
+ * @param idx
+ * @return
+ */
+PParam PMsrData::getMap(int idx)
+{
+  PParam map;
+
+  if (idx >= fMap.size())
+    return map;
+
+  return fMap[idx];
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMsrData::getFuncNo
+ * @param idx
+ * @return
+ */
+int PMsrData::getFuncNo(int idx)
+{
+  if ((idx < 0) || (idx >= fFunc.size()))
+    return -1;
+
+  return fFunc[idx].number;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMsrData::isPresent
+ * @param funStr
+ * @return
+ */
+bool PMsrData::isPresent(const QString funStr)
+{
+  for (int i=0; i<fFunc.size(); i++) {
+    if (fFunc[i].fun.startsWith(funStr, Qt::CaseInsensitive))
+      return true;
+  }
+
+  return false;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMsrData::getFunc
+ * @param funNo
+ * @return
+ */
+QString PMsrData::getFunc(int funNo)
+{
+  int idx=-1;
+  for (int i=0; i<fFunc.size(); i++) {
+    if (fFunc[i].number == funNo) {
+      idx=i;
+      break;
+    }
+  }
+
+  QString funStr = QString("fun%1 = ??").arg(funNo);
+
+  if (idx != -1)
+    funStr = fFunc[idx].fun;
+
+  return funStr;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMsrData::getFuncAll
+ * @return
+ */
+QString PMsrData::getFuncAll()
+{
+  QString funStr("");
+
+  for (int i=0; i<fFunc.size(); i++) {
+    funStr += fFunc[i].fun + "\n";
+  }
+
+  return funStr;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMsrData::sort
+ * @param whichVec can be 'param', 'map', 'func'
+ */
+void PMsrData::sort(QString whichVec)
+{
+  bool swapped = true;
+  int j=0;
+
+  if (whichVec == "param") {
+    PParam swap;
+    while (swapped) {
+      swapped = false;
+      j++;
+      for (int i=0; i < fParam.size() - j; i++) {
+        if (fParam[i].getNumber() > fParam[i+1].getNumber()) {
+          swap = fParam[i];
+          fParam[i] = fParam[i+1];
+          fParam[i+1] = swap;
+          swapped = true;
+        }
+      }
+    }
+  } else if (whichVec == "map") {
+    PParam swap;
+    while (swapped) {
+      swapped = false;
+      j++;
+      for (int i=0; i < fMap.size() - j; i++) {
+        if (fMap[i].getNumber() > fMap[i+1].getNumber()) {
+          swap = fMap[i];
+          fMap[i] = fMap[i+1];
+          fMap[i+1] = swap;
+          swapped = true;
+        }
+      }
+    }
+  } else if (whichVec == "func") {
+    PFunc swap;
+    while (swapped) {
+      swapped = false;
+      j++;
+      for (int i=0; i < fFunc.size() - j; i++) {
+        if (fFunc[i].number > fFunc[i+1].number) {
+          swap = fFunc[i];
+          fFunc[i] = fFunc[i+1];
+          fFunc[i+1] = swap;
+          swapped = true;
+        }
+      }
+    }
+  }
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMsrData::removeFunc
+ * @param funList
+ */
+void PMsrData::removeFunc(QVector<int> &funList)
+{
+  int idx;
+  for (int i=0; i<fFunc.size(); i++) {
+    idx = -1;
+    for (int j=0; j<funList.size(); j++) {
+      if (fFunc[i].number == funList[j]) {
+        idx = j;
+        break;
+      }
+    }
+
+    if (idx == -1) { // function not found hence remove it
+      fFunc.remove(i);
+    }
+  }
+}
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+PShowTheo::PShowTheo(QString theo, QString func, QWidget *parent, Qt::WindowFlags f) :
+  QDialog(parent, f)
+{
+  setWindowTitle("used Theory");
+
+  QLabel *label = new QLabel("<h2>used Theory</h2>");
+  QPlainTextEdit *theoTextEdit = new QPlainTextEdit(theo);
+  theoTextEdit->setReadOnly(true);
+  QPlainTextEdit *funcTextEdit = 0;
+  if (!func.isEmpty()) {
+    funcTextEdit = new QPlainTextEdit(func);
+    funcTextEdit->setReadOnly(true);
+  }
+  QPushButton *cancel = new QPushButton("&Cancel");
+
+  QVBoxLayout *layout = new QVBoxLayout;
+  layout->addWidget(label);
+  layout->addWidget(theoTextEdit);
+  if (funcTextEdit)
+    layout->addWidget(funcTextEdit);
+  layout->addWidget(cancel);
+
+  setLayout(layout);
+
+  connect(cancel, SIGNAL(pressed()), this, SLOT(accept()));
+}
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ * @brief PIntroPage::PIntroPage
+ * @param data
+ * @param parent
+ */
+PIntroPage::PIntroPage(PAdmin *admin, PMsrData *data, QWidget *parent) :
+  QWizardPage(parent),
+  fAdmin(admin),
+  fMsrData(data)
+{
+  setTitle("<h2>Introduction</h2>");
+  setSubTitle("This wizard will help you to create your msr-file.");
+
+  fMsrFileName = new QLineEdit();
+  fMsrFileName->setToolTip("enter msr-file name or leave it empty.");
+  fMsrFileName->setWhatsThis("If empty the file name will be generate,\nbased on the run number, the fit type\nand the type of measurement.");
+
+  fYear = new QLineEdit();
+  fYear->setValidator(new QIntValidator());
+  QDate date = QDate::currentDate();
+  fYear->setText(QString("%1").arg(date.year()));
+  fYear->setToolTip("year when the run took place.");
+  fYear->setWhatsThis("The year is used to generate\nthe RUN header information where\nmusrfit will look for the data.");
+
+  fRunNumber = new QLineEdit();
+  fRunNumber->setValidator(new QIntValidator());
+  fRunNumber->setText(QString("%1").arg(fMsrData->getRunNumber()));
+  fRunNumber->setToolTip("enter the run number here.");
+
+  fInstitute = new QComboBox();
+  QStringList list = fAdmin->getInstituteList(); // get list form the instrument_def's
+  list.prepend("UnDef");
+  fInstitute->addItems(list);
+  int idx = fInstitute->findText(fAdmin->getDefaultInstitute());
+  if (idx != -1)
+    fInstitute->setCurrentIndex(idx);
+
+  fInstrument = new QComboBox();
+  list.clear();
+  list << fAdmin->getInstrumentList(fMsrData->getInstitute());
+  list.prepend("UnDef");
+  fInstrument->addItems(list);
+  idx = fInstrument->findText(fAdmin->getDefaultInstrument());
+  if (idx != -1)
+    fInstrument->setCurrentIndex(idx);
+
+  fFitType = new QComboBox();
+  list.clear();
+  list << "UnDef" << "Single Histo" << "Single Histo RRF" << "Asymmetry" << "Asymmetry RRF" << "Mu Minus" << "None muSR";
+  fFitType->addItems(list);
+  idx = fFitType->findText(fAdmin->getDefaultFitType());
+  fFitType->setCurrentIndex(idx);
+
+  fMeasurementType = new QComboBox();
+  list.clear();
+  list << "UnDef" << "ZF" << "TF" << "LF";
+  fMeasurementType->addItems(list);
+  fMeasurementType->setCurrentIndex(fMsrData->getTypeOfMeasurement());
+
+  fT0 = new QComboBox();
+  list.clear();
+  list << "from data file" << "call musrT0" << "enter here";
+  fT0->addItems(list);
+  fT0->setCurrentIndex(fMsrData->getT0Tag());
+  fT0->setWhatsThis("choose if you want the t0's from the data file,\ncall musrT0 after the msr-files is generated,\nor enter the values within the wizard.");
+
+  QFormLayout *layout = new QFormLayout;
+
+  layout->addRow("Add msr-file name:", fMsrFileName);
+  layout->addRow("Year:", fYear);
+  layout->addRow("Run Number:", fRunNumber);
+  layout->addRow("Institute:", fInstitute);
+  layout->addRow("Instrument:", fInstrument);
+  layout->addRow("Fit Type:", fFitType);
+  layout->addRow("Type of Measurement:", fMeasurementType);
+  layout->addRow("T0's:", fT0);
+
+  setLayout(layout);
+
+  registerField("runNumber*", fRunNumber);
+
+  QObject::connect(fInstitute, SIGNAL(activated(int)), this, SLOT(handleInstituteChanged(int)));
+  QObject::connect(fFitType, SIGNAL(activated(int)), this , SLOT(handleFitType(int)));
+  QObject::connect(fMeasurementType, SIGNAL(activated(int)), this, SLOT(checkSetup(int)));  
+  QObject::connect(fT0, SIGNAL(activated(int)), this, SLOT(handleT0(int)));
+}
+
+//-------------------------------------------------------------------------
+void PIntroPage::handleInstituteChanged(int idx)
+{
+  QString str = fInstitute->itemText(idx);
+  QStringList list = fAdmin->getInstrumentList(str);
+  list.prepend("UnDef");
+
+  fInstrument->clear();
+  fInstrument->addItems(list);
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PIntroPage::handleFitType
+ * @param idx
+ */
+void PIntroPage::handleFitType(int idx)
+{
+  if ( (idx != FIT_TYPE_SINGLE_HISTO) &&
+       (idx != FIT_TYPE_ASYMMETRY) ){
+    QMessageBox::warning(0, "WARNING", "Currently only fit type: single histo and asymmetry available.");
+    fFitType->setCurrentIndex(FIT_TYPE_SINGLE_HISTO);
+  }
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PIntroPage::checkSetup
+ * @param idx
+ */
+void PIntroPage::checkSetup(int idx)
+{
+  QString measure("");
+  PInstrument *instru = fAdmin->getInstrument(fInstitute->currentText(), fInstrument->currentText());
+  QVector<PSetup> setup;
+  switch (idx) {
+  case MEASURE_ZF:
+    setup = instru->getZFSetups();
+    measure = "ZF";
+    break;
+  case MEASURE_TF:
+    setup = instru->getTFSetups();
+    measure = "TF";
+    break;
+  case MEASURE_LF:
+    setup = instru->getLFSetups();
+    measure = "LF";
+    QMessageBox::information(0, "INFO", "Not yet implemented.");
+    break;
+  case MEASURE_UNDEF:
+  default:
+    break;
+  }
+
+  if (setup.size() == 0) {
+    QString msg = QString("Didn't find any setup for:\nInstitute: %1\nInstrument: %2").arg(fInstitute->currentText()).arg(fInstrument->currentText());
+    QMessageBox::critical(0, "ERROR", msg);
+    return;
+  } else if (setup.size() == 1) {
+    if (setup[0].getName() == "Default") {
+      fMsrData->setSetup("Default");
+      return;
+    }
+  }
+
+  QStringList items;
+  for (int i=0; i<setup.size(); i++) {
+    items << setup[i].getName();
+  }
+
+  bool ok;
+  QString setupName = QInputDialog::getItem(this, "Choose Setup:", measure, items, 0, false, &ok);
+
+  if (ok) {
+    fMsrData->setSetup(setupName);
+  }
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PIntroPage::handleT0
+ * @param idx
+ */
+void PIntroPage::handleT0(int idx)
+{
+  bool ok;
+  if (idx == T0_ENTER_WIZ) {
+    int t0 = QInputDialog::getInt(this, "Enter T0:", "T0:", 0, 0, 2147483647, 1, &ok);
+    if (ok)
+      fMsrData->setT0(t0);
+  }
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PIntroPage::nextId
+ * @return
+ */
+int PIntroPage::nextId() const
+{
+  return PMusrWiz::ePageTheory;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PIntroPage::validatePage
+ * @return
+ */
+bool PIntroPage::validatePage()
+{
+  fMsrData->setMsrFileName(fMsrFileName->text());
+  fMsrData->setYear(fYear->text());
+  fMsrData->setRunNumber(fRunNumber->text().toInt());
+  if (fInstitute->currentIndex() == INST_UNDEF)
+    return false;
+  fMsrData->setInstitute(fInstitute->currentText());
+  if (fInstrument->currentIndex() == 0) // i.e. undefined
+    return false;
+  fMsrData->setInstrument(fInstrument->currentText());
+  if (fFitType->currentIndex() == FIT_TYPE_UNDEF)
+    return false;
+  fMsrData->setFitType(fFitType->currentIndex());
+  if (fMeasurementType->currentIndex() == MEASURE_UNDEF)
+    return false;
+  fMsrData->setTypeOfMeasurement(fMeasurementType->currentIndex());
+  fMsrData->setT0Tag(fT0->currentIndex());
+
+  return true;
+}
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ * @brief PTheoPage::PTheoPage
+ * @param data
+ * @param parent
+ */
+PTheoPage::PTheoPage(PAdmin *admin, PMsrData *data, QWidget *parent) :
+  QWizardPage(parent),
+  fAdmin(admin),
+  fMsrData(data)
+{
+  fTheoBlockNo = 0;
+
+  fTheoValid = false;
+  fHaveMap = false;
+  fHaveFunc = false;
+
+  setTitle("<h2>Theory</h2>");
+  QString str = QString("Now you will need to enter your theory - fit type: %1").arg(fMsrData->getFitTypeString());
+  setSubTitle(str);
+
+  fTheo = new QPlainTextEdit();
+  fTheo->setWhatsThis("Enter the theory function here.");
+
+  fEditTemplate = new QCheckBox("Edit Template");
+  fEditTemplate->setToolTip("if checked, it allows to edit the template");
+  fEditTemplate->hide();
+
+  fClearAll = new QPushButton();
+  fClearAll->setText("Clear All");
+  fClearAll->setToolTip("will clear the theory edit field.");
+  fClearAll->setWhatsThis("will clear the theory edit field.");
+
+  fCheckTheo = new QPushButton();
+  fCheckTheo->setText("Check");
+  fCheckTheo->setToolTip("check if the theory is valid.");
+  fCheckTheo->setWhatsThis("Check is the theory string is valid.");
+
+  QVector<PTheoTemplate> templ = fAdmin->getTheoTemplates();
+  QVector<PMusrfitFunc> funcs = fAdmin->getMusrfitFunc();
+  fTheoSelect = new QComboBox();
+  QStringList list;
+  // all the templates defined in musrfit_func.xml
+  for (int i=0; i<templ.size(); i++) {
+    list << templ[i].getName();
+  }
+  // all the functions defined in musrfit_func.xml
+  for (int i=0; i<funcs.size(); i++) {
+    list << funcs[i].getName();
+  }
+  fTheoSelect->addItems(list);
+  fTheoSelect->setWhatsThis("select some predef. theory functions.\nFor all theory functions available check the help");
+
+  fTheoAdd = new QPushButton("Add");
+
+  QHBoxLayout *hLayout = new QHBoxLayout();
+  hLayout->addWidget(fTheoSelect);
+  hLayout->addWidget(fTheoAdd);
+
+  QFormLayout *layout = new QFormLayout;
+  layout->addRow("Enter Theory:", fTheo);
+  layout->addRow(fEditTemplate);
+  layout->addRow("Clear Theory:", fClearAll);
+  layout->addRow("Pre Def. Theory Select:", hLayout);
+  layout->addRow("Press for Validation:", fCheckTheo);
+
+  setLayout(layout);
+
+  QObject::connect(fEditTemplate, SIGNAL(stateChanged(int)), this, SLOT(templateState(int)));
+  QObject::connect(fClearAll, SIGNAL(clicked()), this, SLOT(clearAll()));
+  QObject::connect(fCheckTheo, SIGNAL(clicked()), this, SLOT(checkTheory()));
+  QObject::connect(fTheoAdd, SIGNAL(clicked()), this, SLOT(addTheory()));
+}
+
+//-------------------------------------------------------------------------
+void PTheoPage::initializePage()
+{
+  QString str = QString("Now you will need to enter your theory. Fit type: %1").arg(fMsrData->getFitTypeString());
+  setSubTitle(str);
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PTheoPage::nextId
+ * @return
+ */
+int PTheoPage::nextId() const
+{
+  if (fHaveFunc)
+    return PMusrWiz::ePageFunctions;
+  else if (fHaveMap)
+    return PMusrWiz::ePageMaps;
+  else
+    return PMusrWiz::ePageParameters;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PTheoPage::validatePage
+ * @return
+ */
+bool PTheoPage::validatePage()
+{
+  if (fTheo->toPlainText().isEmpty())
+    return false;
+
+  fMsrData->clearParam();
+  fFunList.clear();
+//  fMsrData->clearFunc();
+  fMsrData->clearMap();
+
+  checkTheory();
+  if (!fTheoValid)
+    return false;
+
+  // transfer theory string
+  fMsrData->setTheory(fTheo->toPlainText());
+
+  // transfer found parameters
+  fMsrData->setParam(fParamList);
+
+  // transfer found maps
+  fMsrData->setMap(fMapList);
+
+  // transfer found functions
+  if (fHaveFunc) {
+    QString funStr;
+    for (int i=0; i<fFunList.size(); i++) {
+      funStr = QString("fun%1").arg(fFunList[i]);
+      if (!fMsrData->isPresent(funStr)) {
+        funStr = QString("fun%1 = ??").arg(fFunList[i]);
+        fMsrData->setFunc(fFunList[i], funStr);
+      }
+    }
+  }
+
+  // check if it is necessary to eliminate functions which are not present anymore
+  if (fFunList.size() != fMsrData->getNoOfFunc()) {
+    // remove functions from fMsrData which are NOT found in fFuncList
+    fMsrData->removeFunc(fFunList);
+  }
+
+  return true;
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+void PTheoPage::templateState(int state)
+{
+  if (state == Qt::Checked) {
+    fTheo->setTextInteractionFlags(Qt::TextEditorInteraction);
+    fMsrData->setTemplate(-1);
+    fEditTemplate->hide();
+    fEditTemplate->setCheckState(Qt::Unchecked);
+  }
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+void PTheoPage::clearAll()
+{
+  fTheo->clear();
+  fTheo->setTextInteractionFlags(Qt::TextEditorInteraction);
+  fEditTemplate->hide();
+  fMsrData->setTemplate(-1);
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PTheoPage::addTheory
+ */
+void PTheoPage::addTheory()
+{
+  int idx = fTheoSelect->currentIndex();
+  bool isTempl = false;
+  QString item = fTheoSelect->currentText();
+  if (item.startsWith("T:")) {
+    fEditTemplate->show();
+    isTempl = true;
+  }
+
+  QString theo("");
+  bool emptyTheo = false;
+  if (fTheo->toPlainText().isEmpty()) { // empty theory
+    emptyTheo = true;
+    theo = getTheoryFunction(idx);
+    if (theo == "??")
+      return;
+    fTheo->setPlainText(theo);
+  } else { // theory already has some stuff
+    emptyTheo = false;
+    theo = getTheoryFunction(idx);
+    if (theo == "??")
+      return;
+    fTheo->appendPlainText("+");
+    fTheo->appendPlainText(theo);
+  }
+
+  if (isTempl && emptyTheo) {
+    fTheo->setTextInteractionFlags(Qt::TextBrowserInteraction);
+    fMsrData->setTemplate(idx);
+    fMsrData->setTemplate(fAdmin->getTheoTemplate(idx));
+  }
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PTheoPage::checkTheory
+ */
+void PTheoPage::checkTheory()
+{
+  fTheoValid = false;
+
+  // reset all lists:
+  fParamList.clear();
+  fMapList.clear();
+  fFunList.clear();
+
+  // check theory the following way:
+  // (i) make sure that line by line is a valid function
+  // (ii) make a collection of parameters with names suggested
+  // (iii) make a collection of functions if present
+  // (iv) make a map list if present
+
+  QString str = fTheo->toPlainText();
+  QStringList line = str.split("\n");
+  bool ok = true;
+  PMusrfitFunc func;
+  for (int i=0; i<line.size(); i++) {
+    if (line[i].trimmed().isEmpty() ||
+        line[i].trimmed().startsWith("%") ||
+        line[i].trimmed().startsWith("#")) { // empty of comment lines
+      continue;
+    } else if (line[i].trimmed().startsWith("+")) {
+      fTheoBlockNo++;
+      continue;
+    } else if (line[i].startsWith("fun")) {
+      ok = analyzeTokens(line[i], 0);
+      if (!ok) {
+        QString str = QString("**ERROR** in line %1.\n funX takes no parameter.").arg(i+1);
+        QMessageBox::critical(0, "Check Theory", str);
+        // eventually it would be nice to highlight the faulty line
+        return;
+      }
+    } else if (line[i].startsWith("map")) {
+        ok = analyzeTokens(line[i], 0);
+        if (!ok) {
+          QString str = QString("**ERROR** in line %1.\n mapX takes no parameter.").arg(i+1);
+          QMessageBox::critical(0, "Check Theory", str);
+          // eventually it would be nice to highlight the faulty line
+          return;
+        }
+    } else { // assume musrfit functions here
+      QStringList strList = line[i].split(" ", Qt::SkipEmptyParts);
+      func = fAdmin->getMusrfitFunc(strList[0]);
+      if (func.getName() == "UnDef") { // function not found
+        QString str = QString("**ERROR** in line %1, '%2' is not a recognized musrfit function.").arg(i+1).arg(line[i]);
+        QMessageBox::critical(0, "Check Theory", str);
+        // eventually it would be nice to highlight the faulty line
+        return;
+      }
+      ok = analyzeTokens(line[i], func.getNoOfParam());
+      if (!ok) {
+        QString str = QString("**ERROR** in line %1.\n %2 takes %3 parameter.").arg(i+1).arg(func.getName()).arg(func.getNoOfParam());
+        QMessageBox::critical(0, "Check Theory", str);
+        // eventually it would be nice to highlight the faulty line
+        return;
+      }
+    }
+  }
+
+  if (fMapList.size() > 0)
+    fHaveMap = true;
+  else
+    fHaveMap = false;
+
+  if (fFunList.size() > 0)
+    fHaveFunc = true;
+  else
+    fHaveFunc = false;
+
+  fTheoValid = true;
+
+  QObject *obj = sender();
+  if (obj == fCheckTheo)
+    QMessageBox::information(0, "Check Theory", "Theory seems to be OK.");
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PTheoPage::getTheoryFunction
+ * @param idx
+ * @return
+ */
+QString PTheoPage::getTheoryFunction(int idx)
+{
+  QString result("??");
+  QVector<PTheoTemplate> templ = fAdmin->getTheoTemplates();
+  QVector<PMusrfitFunc> func = fAdmin->getMusrfitFunc();
+  static int mapCount = 1;
+
+  if (idx >= templ.size()) { // deal with musrfit functions
+    if (idx >= templ.size() + func.size())
+      return result;
+    result = func[idx-templ.size()].getAbbrv();
+    for (int i=0; i<func[idx-templ.size()].getNoOfParam(); i++) {
+      if (func[idx-templ.size()].getFuncParam(i).isMap()) {
+        result += " " + QString("map%1").arg(mapCount);
+        mapCount++;
+      } else {
+        result += " " + QString("%1").arg(i+1);
+      }
+    }
+  } else { // deal with templates
+    result = templ[idx].getTheory();
+    result.replace("\\n", QString(QChar::LineSeparator));
+    mapCount += templ[idx].getNoOfMap();
+  }
+
+  return result;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PTheoPage::analyzeTokens
+ * @param str
+ * @param noOfTokens
+ * @return
+ */
+bool PTheoPage::analyzeTokens(QString str, int noOfTokens)
+{
+  QStringList tok = str.trimmed().split(" ", Qt::SkipEmptyParts);
+
+  bool ok;
+  // check if line is of the form 'funX' or 'mapX'
+  if (tok.size() == 1) {
+    QString stok;
+    int stokNo;
+    if (tok[0].startsWith("map")) {
+      stok = tok[0];
+      stok.remove("map");
+      stokNo = stok.toInt(&ok);
+      if (ok) {
+        dealWithMap(tok[0], stokNo, 0);
+      } else {
+        QString msg = QString("Found map of the form '%1'.\nThis is NOT a legal map!").arg(tok[0]);
+        QMessageBox::critical(0, "analyzeTokens", msg);
+        return false;
+      }
+    } else if (tok[0].startsWith("fun")) {
+      stok = tok[0];
+      stok.remove("fun");
+      stokNo = stok.toInt(&ok);
+      if (ok) {
+        dealWithFun(stokNo);
+      } else {
+        QString msg = QString("Found fun of the form '%1'.\nThis is NOT a legal function!").arg(tok[0]);
+        QMessageBox::critical(0, "analyzeTokens", msg);
+        return false;
+      }
+    }
+  }
+
+  // check that the number of tokens is ok
+  if (tok.size()-1 != noOfTokens) {
+    return false;
+  }
+
+  // check if the token is a parameter
+  int paramNo;
+  for (int i=1; i<tok.size(); i++) {
+    paramNo = tok[i].toInt(&ok);
+    if (ok) { // i.e. it is a parameter
+      dealWithParam(tok[0], paramNo, i);
+    } else if (!tok[i].startsWith("map") && !tok[i].startsWith("fun")) {
+      QString msg = QString("Found parameter of the form '%1'.\nThis is NOT a legal parameter!").arg(tok[i]);
+      QMessageBox::critical(0, "analyzeTokens", msg);
+      return false;
+    }
+  }
+
+  // check if the token is a map
+  QString map;
+  int mapNo;
+  for (int i=1; i<tok.size(); i++) {
+    if (tok[i].startsWith("map")) {
+      map = tok[i];
+      map.remove("map");
+      mapNo = map.toInt(&ok);
+      if (ok) {
+        dealWithMap(tok[0], mapNo, i);
+      } else {
+        QString msg = QString("Found map of the form '%1'.\nThis is NOT a legal map!").arg(tok[i]);
+        QMessageBox::critical(0, "analyzeTokens", msg);
+        return false;
+      }
+    }
+  }
+
+  // check if the token is a function
+  QString fun;
+  int funNo;
+  for (int i=1; i<tok.size(); i++) {
+    if (tok[i].startsWith("fun")) {
+      fun = tok[i];
+      fun.remove("fun");
+      funNo = fun.toInt(&ok);
+      if (ok) {
+        dealWithFun(funNo);
+      } else {
+        QString msg = QString("Found function of the form '%1'.\nThis is NOT a legal function!").arg(tok[i]);
+        QMessageBox::critical(0, "analyzeTokens", msg);
+        return false;
+      }
+    }
+  }
+
+  return true;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PTheoPage::dealWithParam
+ * @param theo
+ * @param paramNo
+ * @param paramIdx
+ */
+void PTheoPage::dealWithParam(QString theo, int paramNo, int paramIdx)
+{
+  // check if paramNo is already in the parameter list
+  for (int i=0; i<fParamList.size(); i++) {
+    if (fParamList[i].getNumber() == paramNo) { // nothing to be done
+      return;
+    }
+  }
+
+  PParam par;
+  PMusrfitFunc func = fAdmin->getMusrfitFunc(theo);
+  if (func.getName() == "UnDef") {
+    // something is fundamentaly wrong
+    return;
+  }
+
+  QString str;
+  par.setNumber(paramNo);
+  str = QString("%1_%2").arg(func.getFuncParam(paramIdx-1).getParamName()).arg(fTheoBlockNo);
+  par.setName(str);
+  par.setValue(func.getFuncParam(paramIdx-1).getParamValue());
+  if (par.getName().contains("Ph_"))
+    par.setStep(10.0);
+  else
+    par.setStep(par.getValue() * 0.1);
+
+  // keep parameter entry
+  fParamList.push_back(par);
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PTheoPage::dealWithMap
+ * @param theo
+ * @param mapNo
+ * @param paramIdx
+ */
+void PTheoPage::dealWithMap(QString theo, int mapNo, int paramIdx)
+{
+  // check if mapNo is already in the map list
+  for (int i=0; i<fMapList.size(); i++) {
+    if (fMapList[i].getNumber() == mapNo) {
+      return;
+    }
+  }
+
+  PParam map;
+  QString str;
+
+  if (theo.startsWith("map")) {
+    map.setNumber(mapNo);
+    str = QString("map%1").arg(mapNo);
+    map.setName(str);
+    fMapList.push_back(map);
+  } else { // theory
+    PMusrfitFunc func = fAdmin->getMusrfitFunc(theo);
+    if (func.getName() == "UnDef") {
+      // something is fundamentaly wrong
+      return;
+    }
+
+    map.setNumber(mapNo);
+    str = QString("%1_%2").arg(func.getFuncParam(paramIdx-1).getParamName()).arg(mapNo);
+    map.setName(str);
+    fMapList.push_back(map);
+  }
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PTheoPage::dealWithFun
+ * @param funNo
+ */
+void PTheoPage::dealWithFun(int funNo)
+{
+  // check if funNo is already in the fun list
+  for (int i=0; i<fFunList.size(); i++) {
+    if (fFunList[i] == funNo) {
+      return;
+    }
+  }
+
+  fFunList.push_back(funNo);
+}
+
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ * @brief PMapPage::PMapPage
+ */
+PMapPage::PMapPage(PMsrData *data, QWidget *parent) :
+  QWizardPage(parent),
+  fMsrData(data)
+{
+  fMapPageLayout = 0;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMapPage::nextId
+ * @return
+ */
+int PMapPage::nextId() const
+{
+  return PMusrWiz::ePageParameters;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMapPage::initializePage
+ */
+void PMapPage::initializePage()
+{
+  setTitle("<h2>Maps</h2>");
+  QString str = QString("Here you can fine tune your map template names. Fit type: %1").arg(fMsrData->getFitTypeString());
+  setSubTitle(str);
+
+  // sort maps
+  fMsrData->sort("map");
+
+  fMapPageLayout = new QFormLayout;
+  setLayout(fMapPageLayout);
+
+  // make sure that the map list is empty
+  fMapGuiVec.clear();
+
+  // fill Map
+  PParamGui mapGui;
+  PParam map;
+
+  // check if this is a template. If this is the case, fill fMsrData maps with the template info.
+  if (fMsrData->isTemplate()) {
+    PTheoTemplate templ = fMsrData->getTemplate();
+    fMsrData->clearMap();
+    for (int i=0; i<templ.getNoOfMap(); i++) {
+      fMsrData->setMap(i, templ.getMap(i));
+    }
+  }
+
+  for (int i=0; i<fMsrData->getNoOfMap(); i++) {
+    map = fMsrData->getMap(i);
+    mapGui.paramName = new QLineEdit(map.getName());
+    mapGui.paramVal = new QLineEdit("3.45");
+    mapGui.paramStep = new QLineEdit("0.01");
+    mapGui.paramBoundLow = new QLineEdit();
+    mapGui.paramBoundHigh = new QLineEdit();
+    fMapGuiVec.push_back(mapGui);
+  }
+
+  QHBoxLayout *hLayout;
+
+  // header
+  hLayout = new QHBoxLayout();
+  mapGui.paramName = new QLineEdit("Name");
+  mapGui.paramName->setReadOnly(true);
+  mapGui.paramVal = new QLineEdit("Value");
+  mapGui.paramVal->setReadOnly(true);
+  mapGui.paramStep = new QLineEdit("Step");
+  mapGui.paramStep->setReadOnly(true);
+  mapGui.paramBoundLow = new QLineEdit("BoundLow");
+  mapGui.paramBoundLow->setReadOnly(true);
+  mapGui.paramBoundHigh = new QLineEdit("BoundHigh");
+  mapGui.paramBoundHigh->setReadOnly(true);
+  hLayout->addWidget(mapGui.paramName);
+  hLayout->addWidget(mapGui.paramVal);
+  hLayout->addWidget(mapGui.paramStep);
+  hLayout->addWidget(mapGui.paramBoundLow);
+  hLayout->addWidget(mapGui.paramBoundHigh);
+
+  fMapPageLayout->addRow("No", hLayout);
+
+  for (int i=0; i<fMapGuiVec.size(); i++) {
+    hLayout = new QHBoxLayout();
+    hLayout->addWidget(fMapGuiVec[i].paramName);
+    hLayout->addWidget(fMapGuiVec[i].paramVal);
+    hLayout->addWidget(fMapGuiVec[i].paramStep);
+    hLayout->addWidget(fMapGuiVec[i].paramBoundLow);
+    hLayout->addWidget(fMapGuiVec[i].paramBoundHigh);
+
+    fMapPageLayout->addRow(QString("map%1").arg(i+1), hLayout);
+  }
+
+  fShowTheo = new QPushButton("Show &Theory");
+  fMapPageLayout->addRow(fShowTheo);
+
+  update();
+
+  connect(fShowTheo, SIGNAL(pressed()), this, SLOT(showTheo()));
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMapPage::validatePage
+ * @return
+ */
+bool PMapPage::validatePage()
+{
+  // collect the map information
+  PParam map;
+  QString str;
+  double dval;
+  bool ok;
+
+  for (int i=0; i<fMapGuiVec.size(); i++) {
+    map.setNumber(fMsrData->getMap(i).getNumber());
+    str = fMapGuiVec[i].paramName->text();
+    map.setName(str);
+
+    dval = fMapGuiVec[i].paramVal->text().toDouble(&ok);
+    if (ok)
+      map.setValue(dval);
+    else
+      map.setValue(0.0);
+
+    dval = fMapGuiVec[i].paramStep->text().toDouble(&ok);
+    if (ok)
+      map.setStep(dval);
+    else
+      map.setStep(0.0);
+
+    map.setPosErr("none");
+    map.setBoundLow(fMapGuiVec[i].paramBoundLow->text());
+    map.setBoundHigh(fMapGuiVec[i].paramBoundHigh->text());
+
+    fMsrData->setMap(i, map);
+  }
+
+  return true;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMapPage::showTheo
+ */
+void PMapPage::showTheo()
+{
+  PShowTheo *showTheo = new PShowTheo(fMsrData->getTheory(), fMsrData->getFuncAll(), this);
+  showTheo->show();
+}
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ * @brief PFuncPage::PFuncPage
+ */
+PFuncPage::PFuncPage(PMsrData *data, QWidget *parent) :
+  QWizardPage(parent),
+  fMsrData(data)
+{
+  setTitle("<h2>Functions</h2>");
+  QString str = QString("Now you will need to enter your functions. Fit type: %1").arg(fMsrData->getFitTypeString());
+  setSubTitle(str);
+
+  fFunc = new QPlainTextEdit();
+  fFunc->setWhatsThis("Enter the function(s) here.");
+
+  fShowTheo = new QPushButton("Show &Theory");
+
+  QFormLayout *layout = new QFormLayout;
+  layout->addRow("Enter Function(s):", fFunc);
+  layout->addRow(fShowTheo);
+
+  setLayout(layout);
+
+  connect(fShowTheo, SIGNAL(pressed()), this, SLOT(showTheo()));
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PFuncPage::showTheo
+ */
+void PFuncPage::showTheo()
+{
+  PShowTheo *showTheo = new PShowTheo(fMsrData->getTheory(), "", this);
+  showTheo->show();
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PFuncPage::nextId
+ * @return
+ */
+int PFuncPage::nextId() const
+{
+  if (fMsrData->getNoOfMap() > 0)
+    return PMusrWiz::ePageMaps;
+  else
+    return PMusrWiz::ePageParameters;
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+void PFuncPage::initializePage()
+{
+  QString str = QString("Now you will need to enter your functions. Fit type: %1").arg(fMsrData->getFitTypeString());
+  setSubTitle(str);
+
+  // check if this is a template. If this is the case, fill fMsrData functions with the template info.
+  if (fMsrData->isTemplate()) {
+    // fill functions according to the template
+    PTheoTemplate templ = fMsrData->getTemplate();
+    fMsrData->clearFunc();
+    for (int i=0; i<templ.getNoOfFunc(); i++) {
+      fMsrData->setFunc(templ.getFuncNo(i), templ.getFunc(i));
+    }
+  }
+
+  fMsrData->sort("func");
+  fFunc->clear();
+  for (int i=0; i<fMsrData->getNoOfFunc(); i++) {
+    fFunc->appendPlainText(fMsrData->getFunc(fMsrData->getFuncNo(i)));
+  }
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+void PFuncPage::cleanupPage()
+{
+  fMsrData->clearFunc();
+
+  // keep the function information
+  QString str = fFunc->toPlainText();
+  QStringList funList = str.split("\n");
+  int funNo=0;
+  for (int i=0; i<funList.size(); i++) {
+    funNo = getFuncNo(funList[i]);
+    if (funNo != -1)
+      fMsrData->setFunc(funNo, funList[i]);
+  }
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PFuncPage::validatePage
+ * @return
+ */
+bool PFuncPage::validatePage()
+{
+  QVector<PParam> paramList;
+  QVector<PParam> mapList;
+
+  QString str = fFunc->toPlainText();
+  QString sstr;
+  QString tok;
+  int idx = 0, parNo, mapNo;
+  bool ok;
+
+  // collect potentially present parameters
+  PParam param;
+  while ((idx = str.indexOf("par", idx)) != -1) {
+    tok = "";
+    idx += 3;
+    while (str[idx].isDigit()) {
+      tok += str[idx++];
+    }
+    parNo = tok.toInt(&ok);
+    if (ok) {
+      param.setNumber(parNo);
+      sstr = QString("par%1").arg(parNo);
+      param.setName(sstr);
+      param.setValue(0.0);
+      param.setStep(0.1);
+      paramList.push_back(param);
+    }
+  }
+  fMsrData->appendParam(paramList);
+
+  // collect potentially present maps
+  str = fFunc->toPlainText();
+  PParam map;
+  idx = 0;
+  while ((idx = str.indexOf("map", idx)) != -1) {
+    tok = "";
+    idx += 3;
+    while (str[idx].isDigit()) {
+      tok += str[idx++];
+    }
+    mapNo = tok.toInt(&ok);
+    if (ok) {
+      map.setNumber(mapNo);
+      sstr = QString("map%1").arg(mapNo);
+      map.setName(sstr);
+      mapList.push_back(map);
+    }
+  }
+  fMsrData->appendMap(mapList);
+
+  // keep the function information
+  str = fFunc->toPlainText();
+  QStringList funList = str.split("\n");
+  int funNo = 0;
+  fMsrData->clearFunc();
+  for (int i=0; i<funList.size(); i++) {
+    if (funList[i].isEmpty())
+      continue;
+    funNo = getFuncNo(funList[i]);
+    if (funNo != -1)
+      fMsrData->setFunc(i, funList[i]);
+  }
+
+  return true;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PFuncPage::getFuncNo
+ * @param str
+ * @return
+ */
+int PFuncPage::getFuncNo(const QString str)
+{
+  QString strNo = str;
+
+  // str should have to form fun<no> = <something>, where <no> is an int
+  if (!str.startsWith("fun"))
+    return -1;
+
+  strNo.remove(0, 3); // get rid of 'fun'
+  int idx = strNo.indexOf("=");
+  if (idx == -1)
+    return -1;
+
+  strNo.remove(idx, str.length()-idx);
+
+  bool ok;
+  int ival = strNo.toInt(&ok);
+  if (!ok)
+    return -1;
+
+  return ival;
+}
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ * @brief PParamPage::PParamPage
+ */
+PParamPage::PParamPage(PMsrData *data, QWidget *parent) :
+  QWizardPage(parent),
+  fMsrData(data)
+{
+  fParameterPageLayout = 0;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PParamPage::nextId
+ * @return
+ */
+int PParamPage::nextId() const
+{
+  return PMusrWiz::ePageFitInfo;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PParamPage::initializePage
+ */
+void PParamPage::initializePage()
+{
+  // sort parameter vector
+  fMsrData->sort("param");
+
+  setTitle("<h2>Fit Parameters</h2>");
+  QString str = QString("Here you can fine tune your parameters. Fit type: %1").arg(fMsrData->getFitTypeString());
+  setSubTitle(str);
+
+  fParameterPageLayout = new QFormLayout;
+  setLayout(fParameterPageLayout);
+
+  // make sure that parameter list is empty
+  fParamGuiVec.clear();
+
+  // fill parameters
+  PParamGui paramGui;
+  PParam param;
+
+  // if a template replace the parameters found so far by the template parameter settings
+  if (fMsrData->isTemplate()) {
+    fMsrData->clearParam();
+    PTheoTemplate templ = fMsrData->getTemplate();
+    for (int i=0; i<templ.getNoOfParam(); i++) {
+      fMsrData->setParam(i, templ.getParam(i));
+    }
+  }
+
+  for (int i=0; i<fMsrData->getNoOfParam(); i++) {
+    param = fMsrData->getParam(i);
+    paramGui.paramName = new QLineEdit(param.getName());
+    paramGui.paramVal = new QLineEdit(QString("%1").arg(param.getValue()));
+    paramGui.paramStep = new QLineEdit(QString("%1").arg(param.getStep()));
+    paramGui.paramBoundLow = new QLineEdit();
+    paramGui.paramBoundHigh = new QLineEdit();
+    fParamGuiVec.push_back(paramGui);
+  }
+
+  QHBoxLayout *hLayout;
+
+  // header
+  hLayout = new QHBoxLayout();
+  paramGui.paramName = new QLineEdit("Name");
+  paramGui.paramName->setReadOnly(true);
+  paramGui.paramVal = new QLineEdit("Value");
+  paramGui.paramVal->setReadOnly(true);
+  paramGui.paramStep = new QLineEdit("Step");
+  paramGui.paramStep->setReadOnly(true);
+  paramGui.paramBoundLow = new QLineEdit("BoundLow");
+  paramGui.paramBoundLow->setReadOnly(true);
+  paramGui.paramBoundHigh = new QLineEdit("BoundHigh");
+  paramGui.paramBoundHigh->setReadOnly(true);
+  hLayout->addWidget(paramGui.paramName);
+  hLayout->addWidget(paramGui.paramVal);
+  hLayout->addWidget(paramGui.paramStep);
+  hLayout->addWidget(paramGui.paramBoundLow);
+  hLayout->addWidget(paramGui.paramBoundHigh);
+  fParameterPageLayout->addRow("No", hLayout);
+
+  for (int i=0; i<fParamGuiVec.size(); i++) {
+    hLayout = new QHBoxLayout();
+    hLayout->addWidget(fParamGuiVec[i].paramName);
+    hLayout->addWidget(fParamGuiVec[i].paramVal);
+    hLayout->addWidget(fParamGuiVec[i].paramStep);
+    hLayout->addWidget(fParamGuiVec[i].paramBoundLow);
+    hLayout->addWidget(fParamGuiVec[i].paramBoundHigh);
+    fParameterPageLayout->addRow(QString("%1").arg(i+1), hLayout);
+  }
+
+  fShowTheo = new QPushButton("Show &Theory");
+  fParameterPageLayout->addRow(fShowTheo);
+
+  update();
+
+  connect(fShowTheo, SIGNAL(pressed()), this, SLOT(showTheo()));
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PParamPage::validatePage
+ * @return
+ */
+bool PParamPage::validatePage()
+{
+  PParam param;
+  QString str;
+  double dval;
+  bool ok;
+
+  for (int i=0; i<fParamGuiVec.size(); i++) {
+    param.setNumber(fMsrData->getParam(i).getNumber());
+    str = fParamGuiVec[i].paramName->text();
+    param.setName(str);
+
+    dval = fParamGuiVec[i].paramVal->text().toDouble(&ok);
+    if (ok)
+      param.setValue(dval);
+    else
+      param.setValue(0.0);
+
+    dval = fParamGuiVec[i].paramStep->text().toDouble(&ok);
+    if (ok)
+      param.setStep(dval);
+    else
+      param.setStep(0.0);
+
+    param.setPosErr("none");
+    param.setBoundLow(fParamGuiVec[i].paramBoundLow->text());
+    param.setBoundHigh(fParamGuiVec[i].paramBoundHigh->text());
+
+    fMsrData->setParam(i, param);
+  }
+
+  return true;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PParamPage::showTheo
+ */
+void PParamPage::showTheo()
+{
+  PShowTheo *showTheo = new PShowTheo(fMsrData->getTheory(), fMsrData->getFuncAll(), this);
+  showTheo->show();
+}
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ * @brief PFitInfoPage::PFitInfoPage
+ */
+PFitInfoPage::PFitInfoPage(PMsrData *data, QWidget *parent) :
+  QWizardPage(parent),
+  fMsrData(data)
+{
+  setTitle("<h2>Fit Info</h2>");
+  QString str = QString("Collect necessary fit information. Fit type: %1").arg(fMsrData->getFitTypeString());
+  setSubTitle(str);
+
+  fFitRangeStart = new QLineEdit("0.0");
+  fFitRangeStart->setValidator(new QDoubleValidator());
+  fFitRangeEnd = new QLineEdit("9.0");
+  fFitRangeEnd->setValidator(new QDoubleValidator());
+
+  QHBoxLayout *hLayout = new QHBoxLayout();
+  hLayout->addWidget(fFitRangeStart);
+  hLayout->addWidget(fFitRangeEnd);
+
+  fPacking = new QLineEdit("1");
+  fPacking->setValidator(new QIntValidator());
+
+  fCommands = new QPlainTextEdit();
+  fCommands->setPlainText("#MAX_LIKELIHOOD\nPRINT_LEVEL 2\nMINIMIZE\nMINOS\nSAVE");
+
+  QFormLayout *layout = new QFormLayout;
+  layout->addRow("Fit Range:", hLayout);
+  layout->addRow("Packing:", fPacking);
+  layout->addRow("Commands:", fCommands);
+
+  setLayout(layout);
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PFitInfoPage::initializePage
+ */
+void PFitInfoPage::initializePage()
+{
+  QString str = QString("Collect necessary fit information. Fit type: %1").arg(fMsrData->getFitTypeString());
+  setSubTitle(str);
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PFitInfoPage::nextId
+ * @return
+ */
+int PFitInfoPage::nextId() const
+{
+  return PMusrWiz::ePageConclusion;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PFitInfoPage::validatePage
+ * @return
+ */
+bool PFitInfoPage::validatePage()
+{
+  bool ok;
+  int ival = fPacking->text().toInt(&ok);
+  if (ok)
+    fMsrData->setPacking(ival);
+
+  double dval = fFitRangeStart->text().toDouble(&ok);
+  if (ok)
+    fMsrData->setFitStart(dval);
+  dval = fFitRangeEnd->text().toDouble(&ok);
+  if (ok)
+    fMsrData->setFitEnd(dval);
+
+  fMsrData->setCmd(fCommands->toPlainText());
+
+  return true;
+}
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ * @brief PConclusionPage::PConclusionPage
+ */
+PConclusionPage::PConclusionPage(PAdmin *admin, PMsrData *data, QString *msrFilePath, QWidget *parent) :
+  QWizardPage(parent),
+  fMsrFilePath(msrFilePath),
+  fAdmin(admin),
+  fMsrData(data)
+{
+  QDir ddir = QDir(*fMsrFilePath);
+
+  setTitle("<h2>Create</h2>");
+  setSubTitle("Now we create the msr-file.");
+
+  QVBoxLayout *vLayout = new QVBoxLayout;
+
+  fMsrPathFileLabel = new QLabel("Current msr-File Path:");
+  fMsrFilePathLineEdit = new QLineEdit(ddir.absolutePath());
+  fMsrFilePathLineEdit->setReadOnly(true);
+  fSaveAsMsrFile = new QPushButton("Save As (msr-file path)");
+  fSaveAsTemplate = new QPushButton("Save As (template)");
+
+  vLayout->addWidget(fMsrPathFileLabel);
+  vLayout->addWidget(fMsrFilePathLineEdit);
+  vLayout->addWidget(fSaveAsMsrFile);
+  vLayout->addStretch(1);
+  vLayout->addWidget(fSaveAsTemplate);
+
+  setLayout(vLayout);
+
+  connect(fSaveAsMsrFile, SIGNAL(pressed()), this, SLOT(saveAsMsrFile()));
+  connect(fSaveAsTemplate, SIGNAL(pressed()), this, SLOT(saveAsTemplate()));
+}
+
+//-------------------------------------------------------------------------
+void PConclusionPage::saveAsMsrFile()
+{
+  QString str = QFileDialog::getExistingDirectory(this, tr("Save in Directory"), "./",
+                                                  QFileDialog::ShowDirsOnly | QFileDialog::DontResolveSymlinks);
+  if (!str.isEmpty()) {
+    *fMsrFilePath = str;
+    fMsrFilePathLineEdit->setText(str);
+  }
+}
+
+//-------------------------------------------------------------------------
+/**
+ *
+ */
+void PConclusionPage::saveAsTemplate()
+{
+  bool newTemplate = false;
+
+  QStringList list;
+  list << "<new>";
+  for (int i=0; i<fAdmin->getTheoTemplateSize(); i++)
+    list << fAdmin->getTheoTemplate(i).getName();
+
+  bool ok;
+  QString result = QInputDialog::getItem(this, "Save As Template", "Template Name", list, 0, false, &ok);
+  if (!ok)
+    return;
+
+  if (result == "<new>") {
+    QString text("");
+    result = QInputDialog::getText(this, "New Template Name", "Enter Template Name", QLineEdit::Normal, text, &ok);
+    if (!ok)
+      return;
+    // analyze the name: it has to start with 'T: '
+    if (!result.startsWith("T: "))
+      result.prepend("T: ");
+    newTemplate = true;
+  }
+
+  // read musrfit_funcs.xml
+  QString path = std::getenv("HOME");
+  QString pathFln = path + "/.musrfit/musrWiz/musrfit_funcs.xml";
+  bool found = false;
+  if (QFile::exists(pathFln)) {
+    found = true;
+  }
+  if (!found) {
+    QMessageBox::critical(this, "ERROR", "Couldn't find musrfit_funcs.xml");
+    return;
+  }
+
+  QFile fin(pathFln);
+  if (!fin.open(QIODevice::ReadOnly | QIODevice::Text)) {
+    QMessageBox::critical(this, "ERROR", "Couldn't open musrfit_funcs.xml for reading.");
+    return;
+  }
+
+  QTextStream in(&fin);
+  QString data = in.readAll();
+  fin.close();
+
+  int idx, idxEnd;
+  QString insertStr, errMsg;
+  if (newTemplate) { // new template
+    // first find the proper place where to insert the new template
+    idx = data.lastIndexOf("</theo_template>");
+    if (idx == -1) {
+      QMessageBox::critical(this, "ERROR", "Couldn't find last theo_template. Something is very wrong.");
+      return;
+    }
+    idx = data.indexOf("<!--", idx);
+    if (idx == -1) {
+      QMessageBox::critical(this, "ERROR", "Couldn't find last theo_template. Something is very wrong.");
+      return;
+    }
+    idx -= 2;
+  } else { // replace existing template
+    // find template name
+    idx = data.indexOf(result);
+    if (idx == -1) {
+      errMsg = QString("Couldn't find theo_template \"%1\". Something is very wrong.").arg(result);
+      QMessageBox::critical(this, "ERROR", errMsg);
+      return;
+    }
+    idx = data.lastIndexOf("  <theo_template>", idx);
+    if (idx == -1) {
+      QMessageBox::critical(this, "ERROR", "Couldn't find start theo_template. Something is very wrong.");
+      return;
+    }
+    idxEnd = data.indexOf("  </theo_template>", idx);
+    if (idxEnd == -1) {
+      QMessageBox::critical(this, "ERROR", "Couldn't find end theo_template. Something is very wrong.");
+      return;
+    }
+    idxEnd += 19;
+    // remove the template which needs to be replaced
+    data.remove(idx, idxEnd-idx);
+  }
+  insertStr = QString("");
+  insertStr += "  <theo_template>\n";
+  insertStr += QString("    <pre_def_name>%1</pre_def_name>\n").arg(result);
+  QString theoStr = fMsrData->getTheory();
+  theoStr.replace("\n", "\\n");
+  insertStr += QString("    <theory>%1</theory>\n").arg(theoStr);
+  for (int i=0; i<fMsrData->getNoOfFunc(); i++) {
+    insertStr += QString("    <theo_fun>%1</theo_fun>\n").arg(fMsrData->getFunc(i));
+  }
+  for (int i=0; i<fMsrData->getNoOfMap(); i++) {
+    insertStr += QString("    <theo_map no=\"%1\" name=\"%2\"/>\n").arg(fMsrData->getMap(i).getNumber()).arg(fMsrData->getMap(i).getName());
+  }
+  insertStr += "  </theo_template>\n";
+  data.insert(idx, insertStr);
+
+  // move original musrfit_funcs.xml -> musrfit_funcs.xml.backup
+  QString pathFlnBackup = pathFln+QString(".backup");
+  fin.rename(pathFlnBackup);
+
+  // write new musrfit_funcs.xml
+  QFile fout(pathFln);
+
+  if (!fout.open(QIODevice::WriteOnly | QIODevice::Text)) {
+    QMessageBox::critical(this, "ERROR", "Couldn't open musrfit_funcs.xml for writing.");
+    return;
+  }
+
+  QTextStream out(&fout);
+  out << data;
+  fout.close();
+}
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ * @brief PMusrWiz::PMusrWiz
+ */
+PMusrWiz::PMusrWiz(QWidget *parent) : QWizard(parent)
+{
+  fAdmin = 0;
+  fMsrData = 0;
+
+  QObject::connect(this, SIGNAL(finished(int)), this, SLOT(writeMsrFile(int)));
+  QObject::connect(this, SIGNAL(helpRequested()), this, SLOT(help()));
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMusrWiz::PMusrWiz
+ */
+PMusrWiz::PMusrWiz(PAdmin *admin, PMsrData *msrData, QWidget *parent) :
+  QWizard(parent),
+  fAdmin(admin),
+  fMsrData(msrData)
+{
+#ifndef Q_OS_MAC
+  setWizardStyle(ModernStyle);
+#endif
+
+  fMsrFilePath = QString("./");
+
+  setPage(ePageIntro, new PIntroPage(fAdmin, fMsrData));
+  setPage(ePageTheory, new PTheoPage(fAdmin, fMsrData));
+  setPage(ePageMaps, new PMapPage(fMsrData));
+  setPage(ePageFunctions, new PFuncPage(fMsrData));
+  setPage(ePageParameters, new PParamPage(fMsrData));
+  setPage(ePageFitInfo, new PFitInfoPage(fMsrData));
+  setPage(ePageConclusion, new PConclusionPage(fAdmin, fMsrData, &fMsrFilePath));
+
+  setStartId(ePageIntro);
+
+  setOption(HaveHelpButton, true);
+
+  setWindowTitle("msr-file Wizard");
+  QString iconTheme = QIcon::themeName();
+  bool isDark = false;
+  if (iconTheme.contains("dark", Qt::CaseInsensitive))
+    isDark = true;
+
+  if (isDark)
+    iconTheme = QString(":/icons/musrWiz-22x22-dark.svg");
+  else
+    iconTheme = QString(":/icons/musrWiz-22x22.svg");
+  setWindowIcon(QIcon(QPixmap(iconTheme)));
+
+  if (isDark)
+    iconTheme = QString(":/icons/musrWiz-32x32-dark.svg");
+  else
+    iconTheme = QString(":/icons/musrWiz-32x32.svg");
+  setPixmap(QWizard::LogoPixmap, QPixmap(iconTheme));
+
+  QObject::connect(this, SIGNAL(finished(int)), this, SLOT(writeMsrFile(int)));
+  QObject::connect(this, SIGNAL(helpRequested()), this, SLOT(help()));
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMusrWiz::~PMusrWiz
+ */
+PMusrWiz::~PMusrWiz()
+{
+
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMusrWiz::writeMsrFile
+ * @param result
+ * @return
+ */
+int PMusrWiz::writeMsrFile(int result)
+{
+  if (result != QDialog::Accepted)
+    return -1;
+
+  int res = 0;
+
+  // keep msr-file path-name
+  fMsrData->setMsrPathName(fMsrFilePath);
+
+  // no msr-file name given, hence generate it
+  if (fMsrData->getMsrFileName() == QString("")) {
+    if (fMsrData->getRunNumber() == -1) {
+      QMessageBox::critical(0, "ERROR", "No run number given! Won't do anything.");
+      return -2;
+    }
+    fMsrData->setMsrFileName(QString("%1").arg(fMsrData->getRunNumber()));
+
+    if (fMsrData->getTypeOfMeasurement() == MEASURE_ZF)
+      fMsrData->appendMsrFileName("_zf");
+    else if (fMsrData->getTypeOfMeasurement() == MEASURE_TF)
+      fMsrData->appendMsrFileName("_tf");
+    else if (fMsrData->getTypeOfMeasurement() == MEASURE_LF)
+      fMsrData->appendMsrFileName("_lf");
+
+    if (fMsrData->getFitType() == FIT_TYPE_SINGLE_HISTO)
+      fMsrData->appendMsrFileName("_histo");
+    else if (fMsrData->getFitType() == FIT_TYPE_SINGLE_HISTO_RRF)
+      fMsrData->appendMsrFileName("_histo_rrf");
+    else if (fMsrData->getFitType() == FIT_TYPE_ASYMMETRY)
+      fMsrData->appendMsrFileName("_asym");
+    else if (fMsrData->getFitType() == FIT_TYPE_ASYMMETRY_RRF)
+      fMsrData->appendMsrFileName("_asym_rrf");
+    else if (fMsrData->getFitType() == FIT_TYPE_MU_MINUS)
+      fMsrData->appendMsrFileName("_muMinus");
+  }
+  fMsrData->appendMsrFileName(".msr");
+
+  if (fMsrData->getFitType() == FIT_TYPE_SINGLE_HISTO) {
+    res = writeMsrFileSingleHisto();
+  } else if (fMsrData->getFitType() == FIT_TYPE_ASYMMETRY) {
+    res = writeMsrFileAsymmetry();
+  } else {
+    res = -99;
+  }
+
+  return res;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMusrWiz::writeMsrFileSingleHisto
+ * @return
+ */
+int PMusrWiz::writeMsrFileSingleHisto()
+{
+  QString pathFileName = fMsrData->getMsrPathName() + "/" + fMsrData->getMsrFileName();
+  QFile fln(pathFileName);
+
+  if (!fln.open(QIODevice::WriteOnly | QIODevice::Text)) {
+    QMessageBox::critical(0, "ERROR", "Cannot open file for writting.");
+    return -3;
+  }
+
+  QTextStream fout(&fln);
+  QString line = QString("###############################################################");
+
+  // write title
+  fout << fMsrData->getMsrFileName() << Qt::endl;
+  fout << line << Qt::endl;
+
+  // write parameter block
+  fout << "FITPARAMETER" << Qt::endl;
+  fout << "#      Nr. Name       Value      Step       Pos_Error   Boundaries" << Qt::endl;
+  PParam param;
+  // global fit parameters
+  for (int i=0; i<fMsrData->getNoOfParam(); i++) {
+    param = fMsrData->getParam(i);
+    fout << qSetFieldWidth(9);
+    fout << Qt::right << param.getNumber();
+    fout << qSetFieldWidth(0) << "  ";
+    fout << qSetFieldWidth(11);
+    fout << Qt::left << param.getName();
+    fout << Qt::left << param.getValue();
+    fout << Qt::left << param.getStep();
+    fout << Qt::left << param.getPosErr();
+    if (!param.getBoundLow().isEmpty())
+      fout << Qt::left << param.getBoundLow();
+    if (!param.getBoundHigh().isEmpty())
+      fout << Qt::left << param.getBoundHigh();
+    fout << qSetFieldWidth(0);
+    fout << Qt::endl;
+  }
+
+  // detector specific fit parameters
+  QString str;
+  PParam map;
+
+  // get proper detector information from the instrument definition
+  PInstrument *instru = fAdmin->getInstrument(fMsrData->getInstitute(), fMsrData->getInstrument());
+  if (instru == 0) {
+    QString msg = QString("No setups found for %1: %2").arg(fMsrData->getInstitute(), fMsrData->getInstrument());
+    QMessageBox::critical(0, "ERROR", msg);
+    return -4;
+  }
+  PSetup *setup = 0;
+  switch (fMsrData->getTypeOfMeasurement()) {
+  case MEASURE_ZF:
+    setup = instru->getZFSetup(fMsrData->getSetup());
+    break;
+  case MEASURE_TF:
+    setup = instru->getTFSetup(fMsrData->getSetup());
+    break;
+  case MEASURE_LF:
+    setup = instru->getLFSetup(fMsrData->getSetup());
+    break;
+  case MEASURE_UNDEF:
+  default:
+    break;
+  }
+  if (setup == 0) {
+    QString msg = QString("No setups found for %1: %2: %3").arg(fMsrData->getInstitute(), fMsrData->getInstrument()).arg(fMsrData->getSetup());
+    QMessageBox::critical(0, "ERROR", msg);
+    return -5;
+  }
+  int noOfDetec = setup->getNoOfLogicalDetectors();
+
+  PDetector *detector = 0;
+  QString detectorName("");
+  for (int i=0; i<noOfDetec; i++) {
+    detector = setup->getDetector(i);
+    detectorName = detector->getName();
+    // name comment
+    fout << "# " << detectorName << Qt::endl;
+
+    // first all maps
+    for (int j=0; j<fMsrData->getNoOfMap(); j++) {
+      map = fMsrData->getMap(j);
+      fout << qSetFieldWidth(9);
+      fout << Qt::right << fMsrData->getNoOfParam() + 1 + j + (fMsrData->getNoOfMap()+2)*i;
+      fout << qSetFieldWidth(0) << "  ";
+      fout << qSetFieldWidth(11);
+      str = map.getName() + QString("_%1").arg(detectorName);
+      fout << Qt::left << str;
+      if (map.getName().startsWith("ph", Qt::CaseInsensitive) ||
+          map.getName().startsWith("relph", Qt::CaseInsensitive)) {
+        fout << Qt::left << detector->getRelGeomPhase();
+        // if RelPh is found, the first will be fixed to 0
+        if (map.getName().startsWith("relph", Qt::CaseInsensitive) && (i==0))
+          fout << Qt::left << 0.0;
+        else
+          fout << Qt::left << 12.3;
+        fout << Qt::left << "none";
+      } else {
+        fout << Qt::left << map.getValue();
+        fout << Qt::left << map.getStep();
+        fout << Qt::left << map.getPosErr();
+        if (map.getBoundLow() != "")
+          fout << Qt::left << map.getBoundLow();
+        if (map.getBoundHigh() != "")
+          fout << Qt::left << map.getBoundHigh();
+      }
+      fout << qSetFieldWidth(0);
+      fout << Qt::endl;
+    }
+
+    // write N0 and N_bkg
+    fout << qSetFieldWidth(9);
+    fout << Qt::right << fMsrData->getNoOfParam() + fMsrData->getNoOfMap() + 1 + (fMsrData->getNoOfMap()+2)*i;
+    fout << qSetFieldWidth(0) << "  ";
+    fout << qSetFieldWidth(11);
+    str = QString("N0_%1").arg(detectorName);
+    fout << Qt::left << str;
+    fout << Qt::left << "123.4";
+    fout << Qt::left << "1.0";
+    fout << Qt::left << "none";
+    fout << qSetFieldWidth(0);
+    fout << Qt::endl;
+
+    fout << qSetFieldWidth(9);
+    fout << Qt::right << fMsrData->getNoOfParam() + fMsrData->getNoOfMap() + 2 + (fMsrData->getNoOfMap()+2)*i;
+    fout << qSetFieldWidth(0) << "  ";
+    fout << qSetFieldWidth(11);
+    str = QString("N_bkg_%1").arg(detectorName);
+    fout << Qt::left << str;
+    fout << Qt::left << "1.234";
+    fout << Qt::left << "0.1";
+    fout << Qt::left << "none";
+    fout << qSetFieldWidth(0);
+    fout << Qt::endl;
+  }
+
+  fout.setFieldWidth(0);
+  fout << Qt::endl << line << Qt::endl;
+
+  // write theory block
+  fout << "THEORY" << Qt::endl;
+  fout << fMsrData->getTheory() << Qt::endl;
+  fout << Qt::endl << line << Qt::endl;
+
+  // write functions block
+  if (fMsrData->getNoOfFunc() > 0) {
+    fout << "FUNCTIONS" << Qt::endl;
+    for (int i=0; i<fMsrData->getNoOfFunc(); i++) {
+      fout << fMsrData->getFunc(fMsrData->getFuncNo(i)) << Qt::endl;
+    }
+    fout << Qt::endl << line << Qt::endl;
+  }
+
+  // write global block
+  fout << "GLOBAL" << Qt::endl;
+  fout << "fittype        " << fMsrData->getFitType()-1 << Qt::endl;
+  fout << "fit            " << fMsrData->getFitStart() << "   " << fMsrData->getFitEnd() << Qt::endl;
+  fout << "packing        " << fMsrData->getPacking() << Qt::endl;
+  fout << Qt::endl << line << Qt::endl;
+
+  // write run block(s)
+  int t0 = 0;
+  if (fMsrData->getT0Tag() == T0_ENTER_WIZ)
+    t0 = fMsrData->getT0();
+  int fgbOffset = setup->getFgbOffset();
+  int lgb = setup->getLgb();
+  QString runName = getRunName(instru);
+  QVector<int> detectorNo;
+  for (int i=0; i<noOfDetec; i++) {
+    detector = setup->getDetector(i);
+    detectorNo = detector->getForwards();
+    fout << "RUN " << runName << Qt::endl;
+    fout << "map         ";
+    fout << qSetFieldWidth(10);
+    for (int j=0; j<fMsrData->getNoOfMap(); j++)
+       fout << Qt::left << fMsrData->getNoOfParam()+ 1 + (fMsrData->getNoOfMap()+2)*i + j;
+    fout << qSetFieldWidth(0) << Qt::endl;
+    fout << "forward     ";
+    for (int j=0; j<detectorNo.size()-1; j++)
+      fout << detectorNo[j] << "  ";
+    fout << detectorNo[detectorNo.size()-1] << Qt::endl;
+    fout << "norm        " << fMsrData->getNoOfParam() + fMsrData->getNoOfMap() + 1 + (fMsrData->getNoOfMap()+2)*i << Qt::endl;
+    fout << "backgr.fit  " << fMsrData->getNoOfParam() + fMsrData->getNoOfMap() + 2 + (fMsrData->getNoOfMap()+2)*i << Qt::endl;
+    if (fMsrData->getT0Tag() == T0_ENTER_WIZ) {
+      fout << "data        " << t0+fgbOffset << "   " << lgb << Qt::endl;
+      fout << "t0          " << t0 << Qt::endl;
+    } else if (fMsrData->getT0Tag() == T0_FROM_MUSR_T0) {
+      fout << "data        120  " << lgb << Qt::endl;
+      fout << "t0          100  " << Qt::endl;
+    }
+    if (i<noOfDetec-1)
+      fout << "#-----------------------------------------------" << Qt::endl;
+    else
+      fout << Qt::endl << line << Qt::endl;
+  }
+
+  // write command block
+  fout << "COMMANDS" << Qt::endl;
+  fout << fMsrData->getCmd() << Qt::endl;
+  fout << Qt::endl << line << Qt::endl;
+
+  // write plot block
+  fout << "PLOT " << fMsrData->getFitType()-1 << Qt::endl;
+  fout << "lifetimecorrection" << Qt::endl;
+  fout << "runs   1-" << setup->getNoOfLogicalDetectors() << Qt::endl;
+  fout << "range  0.0  " << fMsrData->getFitEnd() << Qt::endl;
+  fout << "view_packing " << fMsrData->getPacking() << Qt::endl;
+  fout << Qt::endl << line << Qt::endl;
+
+  // write fourier block
+  fout << "FOURIER" << Qt::endl;
+  fout << "units            MHz" << Qt::endl;
+  fout << "fourier_power    12" << Qt::endl;
+  fout << "apodization      NONE" << Qt::endl;
+  fout << "plot             POWER" << Qt::endl;
+  fout << Qt::endl << line << Qt::endl;
+
+  // write statistic block
+  fout << "STATISTIC --- " << QDateTime::currentDateTime().toString("yyyy-MM-dd HH:mm:ss") << Qt::endl;
+  fout << "*** FIT DID NOT CONVERGE ***" << Qt::endl;
+
+  fln.close();
+
+  return 0;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMusrWiz::writeMsrFileAsymmetry
+ * @return
+ */
+int PMusrWiz::writeMsrFileAsymmetry()
+{
+  QString pathFileName = fMsrData->getMsrPathName() + "/" + fMsrData->getMsrFileName();
+  QFile fln(pathFileName);
+
+  if (!fln.open(QIODevice::WriteOnly | QIODevice::Text)) {
+    QMessageBox::critical(0, "ERROR", "Cannot open file for writting.");
+    return -3;
+  }
+
+  QTextStream fout(&fln);
+  QString line = QString("###############################################################");
+
+  // write title
+  fout << fMsrData->getMsrFileName() << Qt::endl;
+  fout << line << Qt::endl;
+
+  // write parameter block
+  fout << "FITPARAMETER" << Qt::endl;
+  fout << "#      Nr. Name       Value      Step       Pos_Error   Boundaries" << Qt::endl;
+  PParam param;
+  // global fit parameters
+  for (int i=0; i<fMsrData->getNoOfParam(); i++) {
+    param = fMsrData->getParam(i);
+    fout << qSetFieldWidth(9);
+    fout << Qt::right << param.getNumber();
+    fout << qSetFieldWidth(0) << "  ";
+    fout << qSetFieldWidth(11);
+    fout << Qt::left << param.getName();
+    fout << Qt::left << param.getValue();
+    fout << Qt::left << param.getStep();
+    fout << Qt::left << param.getPosErr();
+    if (!param.getBoundLow().isEmpty())
+      fout << Qt::left << param.getBoundLow();
+    if (!param.getBoundHigh().isEmpty())
+      fout << Qt::left << param.getBoundHigh();
+    fout << qSetFieldWidth(0);
+    fout << Qt::endl;
+  }
+
+  // detector specific fit parameters
+  QString str;
+  PParam map;
+
+  // get proper detector information from the instrument definition
+  PInstrument *instru = fAdmin->getInstrument(fMsrData->getInstitute(), fMsrData->getInstrument());
+  if (instru == 0) {
+    QString msg = QString("No setups found for %1: %2").arg(fMsrData->getInstitute(), fMsrData->getInstrument());
+    QMessageBox::critical(0, "ERROR", msg);
+    return -4;
+  }
+  PSetup *setup = 0;
+  switch (fMsrData->getTypeOfMeasurement()) {
+  case MEASURE_ZF:
+    setup = instru->getZFSetup(fMsrData->getSetup());
+    break;
+  case MEASURE_TF:
+    setup = instru->getTFSetup(fMsrData->getSetup());
+    break;
+  case MEASURE_LF:
+    setup = instru->getLFSetup(fMsrData->getSetup());
+    break;
+  case MEASURE_UNDEF:
+  default:
+    break;
+  }
+  if (setup == 0) {
+    QString msg = QString("No setups found for %1: %2: %3").arg(fMsrData->getInstitute(), fMsrData->getInstrument()).arg(fMsrData->getSetup());
+    QMessageBox::critical(0, "ERROR", msg);
+    return -5;
+  }
+  int noOfDetec = setup->getNoOfLogicalAsymDetectors();
+
+  PDetector *detector = 0;
+  QString detectorName("");
+  for (int i=0; i<noOfDetec; i++) {
+    detector = setup->getAsymDetector(i);
+    detectorName = detector->getName();
+    // name comment
+    fout << "# " << detectorName << Qt::endl;
+
+    // first all maps
+
+    // write Alpha (mandatory)
+    fout << qSetFieldWidth(9);
+    fout << Qt::right << fMsrData->getNoOfParam() + 1 + (fMsrData->getNoOfMap()+1)*i;
+    fout << qSetFieldWidth(0) << "  ";
+    fout << qSetFieldWidth(11);
+    str = QString("Alpha_%1").arg(detectorName);
+    fout << Qt::left << str;
+    fout << Qt::left << detector->getAlpha();
+    fout << Qt::left << "0.01";
+    fout << Qt::left << "none";
+    fout << qSetFieldWidth(0);
+    fout << Qt::endl;
+
+    // write user defined maps
+    for (int j=0; j<fMsrData->getNoOfMap(); j++) {
+      map = fMsrData->getMap(j);
+      fout << qSetFieldWidth(9);
+      fout << Qt::right << fMsrData->getNoOfParam() + 2 + j + (fMsrData->getNoOfMap()+1)*i;
+      fout << qSetFieldWidth(0) << "  ";
+      fout << qSetFieldWidth(11);
+      str = map.getName() + QString("_%1").arg(detectorName);
+      fout << Qt::left << str;
+      if (map.getName().startsWith("ph", Qt::CaseInsensitive) ||
+          map.getName().startsWith("relph", Qt::CaseInsensitive)) {
+        fout << Qt::left << detector->getRelGeomPhase();
+        if (map.getName().startsWith("relph", Qt::CaseInsensitive) && (i==0))
+          fout << Qt::left << 0.0;
+        else
+          fout << Qt::left << 12.3;
+        fout << Qt::left << "none";
+      } else {
+        fout << Qt::left << map.getValue();
+        fout << Qt::left << map.getStep();
+        fout << Qt::left << map.getPosErr();
+        if (map.getBoundLow() != "")
+          fout << Qt::left << map.getBoundLow();
+        if (map.getBoundHigh() != "")
+          fout << Qt::left << map.getBoundHigh();
+      }
+      fout << qSetFieldWidth(0);
+      fout << Qt::endl;
+    }
+  }
+
+  fout.setFieldWidth(0);
+  fout << Qt::endl << line << Qt::endl;
+
+  // write theory block
+  fout << "THEORY" << Qt::endl;
+  fout << fMsrData->getTheory();
+  fout << Qt::endl << line << Qt::endl;
+
+  // write functions block
+  if (fMsrData->getNoOfFunc() > 0) {
+    fout << "FUNCTIONS" << Qt::endl;
+    for (int i=0; i<fMsrData->getNoOfFunc(); i++) {
+      fout << fMsrData->getFunc(fMsrData->getFuncNo(i)) << Qt::endl;
+    }
+    fout << Qt::endl << line << Qt::endl;
+  }
+
+  // write global block
+  fout << "GLOBAL" << Qt::endl;
+  fout << "fittype        " << fMsrData->getFitType()-1 << Qt::endl;
+  fout << "fit            " << fMsrData->getFitStart() << "   " << fMsrData->getFitEnd() << Qt::endl;
+  fout << "packing        " << fMsrData->getPacking() << Qt::endl;
+  fout << Qt::endl << line << Qt::endl;
+
+  // write run block(s)
+  int t0 = 0;
+  if (fMsrData->getT0Tag() == T0_ENTER_WIZ)
+    t0 = fMsrData->getT0();
+  int fgbOffset = setup->getFgbOffset();
+  int lgb = setup->getLgb();
+  QString runName = getRunName(instru);
+  QVector<int> detectorNoF, detectorNoB;
+  for (int i=0; i<noOfDetec; i++) {
+    detector = setup->getAsymDetector(i);
+    detectorNoF = detector->getForwards();
+    detectorNoB = detector->getBackwards();
+    fout << "RUN " << runName << Qt::endl;
+    fout << "alpha       " << fMsrData->getNoOfParam() + 1 + (fMsrData->getNoOfMap()+1)*i << Qt::endl;
+
+    fout << "map         ";
+    fout << qSetFieldWidth(10);
+    if (fMsrData->getNoOfMap() == 0) {
+      fout << Qt::left << "0    0    0    0    0    0    0    0    0    0";
+    } else {
+      for (int j=0; j<fMsrData->getNoOfMap(); j++)
+        fout << Qt::left << fMsrData->getNoOfParam() + 2 + (fMsrData->getNoOfMap()+1)*i + j;
+    }
+    fout << qSetFieldWidth(0) << Qt::endl;
+    fout << "forward     ";
+    for (int j=0; j<detectorNoF.size()-1; j++)
+      fout << detectorNoF[j] << "  ";
+    fout << detectorNoF[detectorNoF.size()-1] << Qt::endl;
+    fout << "backward    ";
+    for (int j=0; j<detectorNoB.size()-1; j++)
+      fout << detectorNoB[j] << "  ";
+    fout << detectorNoB[detectorNoB.size()-1] << Qt::endl;
+    fout << "background  " << setup->getBkgStartBin() << "      " << setup->getBkgEndBin() << "    " << setup->getBkgStartBin() << "      " << setup->getBkgEndBin() << Qt::endl;
+    if (fMsrData->getT0Tag() == T0_ENTER_WIZ) {
+      fout << "data        " << t0+fgbOffset << "   " << lgb << "    " << t0+fgbOffset << "   " << lgb << "  " << t0+fgbOffset << "   " << lgb << "    " << t0+fgbOffset << "   " << lgb << Qt::endl;
+      fout << "t0          " << t0 << "   " << t0 << Qt::endl;
+    } else if (fMsrData->getT0Tag() == T0_FROM_MUSR_T0) { // musrt0 shall be called
+      fout << "data        120  " << lgb << "   120  " << lgb << Qt::endl;
+      fout << "t0          100     100" << Qt::endl;
+    }
+    if (i<noOfDetec-1)
+      fout << "#-----------------------------------------------" << Qt::endl;
+    else
+      fout << Qt::endl << line << Qt::endl;
+  }
+
+  // write command block
+  fout << "COMMANDS" << Qt::endl;
+  fout << fMsrData->getCmd() << Qt::endl;
+  fout << Qt::endl << line << Qt::endl;
+
+  // write plot block
+  fout << "PLOT " << fMsrData->getFitType()-1 << Qt::endl;
+  fout << "lifetimecorrection" << Qt::endl;
+  if (setup->getNoOfLogicalAsymDetectors() > 1)
+    fout << "runs   1-" << setup->getNoOfLogicalAsymDetectors() << Qt::endl;
+  else
+    fout << "runs   1" << Qt::endl;
+  fout << "range  0.0  " << fMsrData->getFitEnd() << Qt::endl;
+  fout << "view_packing " << fMsrData->getPacking() << Qt::endl;
+  fout << Qt::endl << line << Qt::endl;
+
+  // write fourier block
+  fout << "FOURIER" << Qt::endl;
+  fout << "units            MHz" << Qt::endl;
+  fout << "fourier_power    12" << Qt::endl;
+  fout << "apodization      NONE" << Qt::endl;
+  fout << "plot             POWER" << Qt::endl;
+  fout << Qt::endl << line << Qt::endl;
+
+  // write statistic block
+  fout << "STATISTIC --- " << QDateTime::currentDateTime().toString("yyyy-MM-dd HH:mm:ss") << Qt::endl;
+  fout << "*** FIT DID NOT CONVERGE ***" << Qt::endl;
+
+  fln.close();
+
+  return 0;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMusrWiz::getRunName
+ * @param instru
+ * @return
+ */
+QString PMusrWiz::getRunName(PInstrument *instru)
+{
+  // prepare year strings (4 digits and 2 digits)
+  QString year = fMsrData->getYear();
+  QString yearShort = year.right(2);
+
+  // check how many digits are needed for the run number (minimum required == 3)
+  QString runTemplate = instru->getRunNameTemplate();
+  int noOfDigits = 4;
+  int idx = runTemplate.indexOf("NNNN");
+  int count = 0;
+  if (idx != -1) {
+    do {
+      count++;
+    } while (runTemplate[idx+count] == 'N');
+  }
+  if (count >= 4)
+    noOfDigits = count;
+
+  // replace year strings from template
+  while ((idx = runTemplate.indexOf("YYYY")) != -1) {
+    runTemplate.replace(idx, 4, year);
+  }
+  while ((idx = runTemplate.indexOf("YY")) != -1) {
+    runTemplate.replace(idx, 2, yearShort);
+  }
+
+  // replace run number
+  QString runNo = QString("%1").arg(fMsrData->getRunNumber(), noOfDigits, 10, QLatin1Char('0'));
+  QString runNoTemplate = "";
+  for (int i=0; i<noOfDigits; i++)
+    runNoTemplate += "N";
+  while ((idx = runTemplate.indexOf(runNoTemplate)) != -1) {
+    runTemplate.replace(idx, noOfDigits, runNo);
+  }
+
+  // add beamline info
+  runTemplate += " " + instru->getBeamline() + " ";
+
+  // add institute info
+  runTemplate += fMsrData->getInstitute() + " ";
+
+  // add run data format
+  runTemplate += instru->getDataFileFormat();
+
+  return runTemplate;
+}
+
+//-------------------------------------------------------------------------
+/**
+ * @brief PMusrWiz::help
+ */
+void PMusrWiz::help()
+{
+  QMessageBox::information(0, "Help", "Eventually there will be a help here.");
+}
diff --git a/src/musredit_qt6/musrWiz/PMusrWiz.h b/src/musredit_qt6/musrWiz/PMusrWiz.h
new file mode 100644
index 00000000..75417f93
--- /dev/null
+++ b/src/musredit_qt6/musrWiz/PMusrWiz.h
@@ -0,0 +1,414 @@
+/***************************************************************************
+
+  PMusrWiz.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PMUSRWIZ_
+#define _PMUSRWIZ_
+
+#include <QString>
+#include <QStringList>
+#include <QWizard>
+#include <QWizardPage>
+#include <QObject>
+#include <QLineEdit>
+#include <QComboBox>
+#include <QCheckBox>
+#include <QPlainTextEdit>
+#include <QPushButton>
+#include <QLabel>
+#include <QFormLayout>
+
+#include "musrWiz.h"
+#include "PAdmin.h"
+
+#define INST_UNDEF  0
+#define INST_PSI    1
+#define INST_TRIUMF 2
+#define INST_ISIS   3
+#define INST_JPARC  4
+
+#define FIT_TYPE_UNDEF            0
+#define FIT_TYPE_SINGLE_HISTO     1
+#define FIT_TYPE_SINGLE_HISTO_RRF 2
+#define FIT_TYPE_ASYMMETRY        3
+#define FIT_TYPE_ASYMMETRY_RRF    4
+#define FIT_TYPE_MU_MINUS         5
+#define FIT_TYPE_NONE_MUSR        6
+
+#define MEASURE_UNDEF 0
+#define MEASURE_ZF    1
+#define MEASURE_TF    2
+#define MEASURE_LF    3
+
+#define T0_FROM_FILE    0
+#define T0_FROM_MUSR_T0 1
+#define T0_ENTER_WIZ    2
+
+//-------------------------------------------------------------------
+typedef struct {
+  QLineEdit *paramName;
+  QLineEdit *paramVal;
+  QLineEdit *paramStep;
+  QLineEdit *paramBoundLow;
+  QLineEdit *paramBoundHigh;
+} PParamGui;
+
+//-------------------------------------------------------------------
+class PMsrData
+{
+  public:
+    PMsrData();
+    ~PMsrData();
+
+    void clearParam() { fParam.clear(); }
+    void clearFunc() { fFunc.clear(); }
+    void clearMap() { fMap.clear(); }
+
+    void setMsrPathName(QString str) { fMsrPathName = str; }
+    void setMsrFileName(QString fileName) { fMsrFileName = fileName; }
+    void appendMsrFileName(QString str) { fMsrFileName += str; }
+    void setYear(QString year) { fYear = year; }
+    void setRunNumber(int runNo) { fRunNumber = runNo; }
+    void setInstitute(QString institute) { fInstitute = institute; }
+    void setInstrument(QString instrument) { fInstrument = instrument; }
+    void setSetup(QString setup) { fSetup = setup; }
+    void setFitType(int fitType) { fFitType = fitType; }
+    void setTypeOfMeasurement(int type) { fTypeOfMeasurement = type; }
+    void setT0Tag(int tag) { fT0Tag = tag; }
+    void setT0(int t0) { fT0 = t0; }
+    void setTheory(QString str) { fTheo = str; }
+    void setParam(QVector<PParam> param) { fParam = param; }
+    void setParam(int idx, PParam param);
+    void appendParam(QVector<PParam> param);
+    void setMap(QVector<PParam> map) { fMap = map; }
+    void setMap(int idx, PParam map);
+    void appendMap(QVector<PParam> map);
+    void setMapTemplateName(int idx, QString name);
+    void setFunc(int funNo, QString str="??");
+    void setPacking(int pack) { fPacking = abs(pack); }
+    void setFitStart(double start) { fFitStart = start; }
+    void setFitEnd(double end) { fFitEnd = end; }
+    void setCmd(QString cmd) { fCommands = cmd; }
+    void setTemplate(int templ) { fTemplate = templ; }
+    void setTemplate(PTheoTemplate templ) { fTheoTempl = templ; }
+
+    QString getMsrPathName() { return fMsrPathName; }
+    QString getMsrFileName() { return fMsrFileName; }
+    QString getYear() { return fYear; }
+    int getRunNumber() { return fRunNumber; }
+    QString getInstitute() { return fInstitute; }
+    QString getInstrument() { return fInstrument; }
+    QString getSetup() { return fSetup; }
+    int getFitType() { return fFitType; }
+    QString getFitTypeString();
+    int getTypeOfMeasurement() { return fTypeOfMeasurement; }
+    int getT0Tag() { return fT0Tag; }
+    int getT0() { return fT0; }
+    QString getTheory() { return fTheo; }
+    int getNoOfParam() { return fParam.size(); }
+    PParam getParam(int idx);
+    int getNoOfMap() { return fMap.size(); }
+    PParam getMap(int idx);
+    int getNoOfFunc() { return fFunc.size(); }
+    int getFuncNo(int idx);
+    bool isPresent(const QString funStr);
+    QString getFunc(int funNo);
+    QString getFuncAll();
+    int getPacking() { return fPacking; }
+    double getFitStart() { return fFitStart; }
+    double getFitEnd() { return fFitEnd; }
+    QString getCmd() { return fCommands; }
+    bool isTemplate() { return (fTemplate == -1) ? false : true; }
+    PTheoTemplate getTemplate() { return fTheoTempl; }
+
+    void sort(QString whichVec);
+    void removeFunc(QVector<int> &funList);
+
+  private:
+    int fTemplate;
+    QString fMsrPathName;
+    QString fMsrFileName;
+    int fRunNumber;
+    QString fInstitute;
+    QString fInstrument;
+    QString fSetup;
+    int fFitType;
+    int fTypeOfMeasurement;
+    int fT0Tag;
+    int fT0;
+    QString fYear;
+    int fPacking;
+    double fFitStart;
+    double fFitEnd;
+    QString fCommands;
+
+    QString fTheo;
+
+    PTheoTemplate   fTheoTempl;
+    QVector<PParam> fParam;
+    QVector<PFunc>  fFunc;
+    QVector<PParam> fMap;
+};
+
+//-------------------------------------------------------------------
+class PShowTheo : public QDialog
+{
+  public:
+    PShowTheo(QString theo, QString func = QString(""),
+              QWidget *parent = Q_NULLPTR, Qt::WindowFlags f = Qt::WindowFlags());
+};
+
+//-------------------------------------------------------------------
+class PIntroPage : public QWizardPage
+{
+  Q_OBJECT
+
+  public:
+    PIntroPage(PAdmin *admin, PMsrData *data, QWidget *parent=0);
+
+    int nextId() const Q_DECL_OVERRIDE;
+    bool validatePage();
+
+  private slots:
+    void handleInstituteChanged(int idx);
+    void handleFitType(int idx);
+    void checkSetup(int idx);
+    void handleT0(int idx);
+
+  private:
+    PAdmin *fAdmin;
+    PMsrData *fMsrData;
+
+    QLineEdit *fMsrFileName;
+    QLineEdit *fYear;
+    QLineEdit *fRunNumber;
+    QComboBox *fInstitute;
+    QComboBox *fInstrument;
+    QComboBox *fFitType;
+    QComboBox *fMeasurementType;
+    QComboBox *fT0;
+};
+
+//-------------------------------------------------------------------
+class PTheoPage : public QWizardPage
+{
+  Q_OBJECT
+
+  public:
+    PTheoPage(PAdmin *admin, PMsrData *data, QWidget *parent=0);
+
+    int nextId() const Q_DECL_OVERRIDE;
+    void initializePage();
+    bool validatePage();
+
+  private slots:
+    void templateState(int);
+    void clearAll();
+    void addTheory();
+    void checkTheory();
+
+  private:
+    PAdmin *fAdmin;
+    PMsrData *fMsrData;
+
+    bool fTheoValid;
+    bool fHaveMap;
+    bool fHaveFunc;
+
+    int fTheoBlockNo;
+
+    QVector<PParam> fParamList;
+    QVector<PParam> fMapList;
+    QVector<int> fFunList;
+
+    QPlainTextEdit *fTheo;
+    QCheckBox *fEditTemplate;
+    QPushButton *fClearAll;
+    QComboBox *fTheoSelect;
+    QPushButton *fTheoAdd;
+    QPushButton *fCheckTheo;
+
+    QString getTheoryFunction(int idx);
+    bool analyzeTokens(QString str, int noOfTokens);
+    void dealWithParam(QString theo, int paramNo, int paramIdx);
+    void dealWithMap(QString theo, int mapNo, int paramIdx);
+    void dealWithFun(int funNo);
+};
+
+//-------------------------------------------------------------------
+class PFuncPage : public QWizardPage
+{
+  Q_OBJECT
+
+  public:
+    PFuncPage(PMsrData *data, QWidget *parent=0);
+
+    int nextId() const Q_DECL_OVERRIDE;
+    void initializePage();
+    void cleanupPage();
+    bool validatePage();
+
+  private slots:
+    void showTheo();
+
+  private:
+    PMsrData *fMsrData;
+
+    QFormLayout *fMapPageLayout;
+    QPlainTextEdit *fFunc;
+    QPushButton *fShowTheo;
+
+    int getFuncNo(const QString str);
+};
+
+//-------------------------------------------------------------------
+class PMapPage : public QWizardPage
+{
+  Q_OBJECT
+
+  public:
+    PMapPage(PMsrData *data, QWidget *parent=0);
+
+    int nextId() const Q_DECL_OVERRIDE;
+    void initializePage();
+    bool validatePage();
+
+  private slots:
+    void showTheo();
+
+  private:
+    PMsrData *fMsrData;
+
+    QFormLayout *fMapPageLayout;
+    QVector<PParamGui> fMapGuiVec;
+    QPushButton *fShowTheo;
+};
+
+//-------------------------------------------------------------------
+class PParamPage : public QWizardPage
+{
+  Q_OBJECT
+
+  public:
+    PParamPage(PMsrData *data, QWidget *parent=0);
+
+    int nextId() const Q_DECL_OVERRIDE;
+    void initializePage();
+    bool validatePage();
+
+  private slots:
+    void showTheo();
+
+  private:
+    PMsrData *fMsrData;
+
+    QFormLayout *fParameterPageLayout;
+    QVector<PParamGui> fParamGuiVec;
+    QPushButton *fShowTheo;
+};
+
+//-------------------------------------------------------------------
+class PFitInfoPage : public QWizardPage
+{
+  Q_OBJECT
+
+  public:
+    PFitInfoPage(PMsrData *data, QWidget *parent=0);
+
+    int nextId() const Q_DECL_OVERRIDE;
+    void initializePage();
+    bool validatePage();
+
+  private:
+    PMsrData *fMsrData;
+
+    QLineEdit *fFitRangeStart;
+    QLineEdit *fFitRangeEnd;
+    QLineEdit *fPacking;
+    QPlainTextEdit *fCommands;
+};
+
+//-------------------------------------------------------------------
+class PConclusionPage : public QWizardPage
+{
+  Q_OBJECT
+
+  public:
+    PConclusionPage(PAdmin *admin, PMsrData *data, QString *msrFilePath, QWidget *parent=0);
+
+  private slots:
+    void saveAsMsrFile();
+    void saveAsTemplate();
+
+  private:
+    QString *fMsrFilePath;
+    PAdmin *fAdmin;
+    PMsrData *fMsrData;
+
+    QLabel *fMsrPathFileLabel;
+    QLineEdit *fMsrFilePathLineEdit;
+    QPushButton *fSaveAsMsrFile;
+    QPushButton *fSaveAsTemplate;
+};
+
+//-------------------------------------------------------------------
+class PMusrWiz : public QWizard
+{
+  Q_OBJECT
+
+  friend class PIntroPage;
+  friend class PTheoPage;
+  friend class PMapPage;
+  friend class PFuncPage;
+  friend class PParamPage;
+  friend class PFitInfoPage;
+
+  public:
+    PMusrWiz(QWidget *parent=Q_NULLPTR);
+    PMusrWiz(PAdmin *admin, PMsrData *msrData, QWidget *parent=Q_NULLPTR);
+    virtual ~PMusrWiz();
+
+  private slots:
+    virtual int writeMsrFile(int result);
+    virtual void help();
+
+  protected:
+    enum {ePageIntro, ePageTheory, ePageMaps, ePageFunctions, ePageParameters, ePageFitInfo, ePageConclusion};
+
+  private:
+    QString fMsrFilePath;
+    PAdmin *fAdmin;
+    PMsrData *fMsrData;
+
+    QString getRunName(PInstrument *instru);
+
+    virtual int writeMsrFileSingleHisto();
+    virtual int writeMsrFileAsymmetry();
+};
+
+#endif //  _PMUSRWIZ_
diff --git a/src/musredit_qt6/musrWiz/PMusrfitFunc.cpp b/src/musredit_qt6/musrWiz/PMusrfitFunc.cpp
new file mode 100644
index 00000000..2746875c
--- /dev/null
+++ b/src/musredit_qt6/musrWiz/PMusrfitFunc.cpp
@@ -0,0 +1,56 @@
+/***************************************************************************
+
+  PMusrfitFunc.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include "PMusrfitFunc.h"
+
+//---------------------------------------------------------------------------
+/**
+ *
+ */
+void PMusrfitFunc::initFunc()
+{
+  fName = "UnDef";
+  fAbbrv = "UnDef";
+  fNoOfParam = -1;
+  fParam.clear();
+}
+
+//---------------------------------------------------------------------------
+/**
+ *
+ */
+PFuncParam PMusrfitFunc::getFuncParam(int idx)
+{
+  PFuncParam param;
+
+  if ((idx >= 0) && (idx < fParam.size()))
+    param = fParam[idx];
+
+  return param;
+}
diff --git a/src/musredit_qt6/musrWiz/PMusrfitFunc.h b/src/musredit_qt6/musrWiz/PMusrfitFunc.h
new file mode 100644
index 00000000..8e02cc57
--- /dev/null
+++ b/src/musredit_qt6/musrWiz/PMusrfitFunc.h
@@ -0,0 +1,84 @@
+/***************************************************************************
+
+  PMusrfitFunc.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PMUSRFITFUNC_H_
+#define _PMUSRFITFUNC_H_
+
+#include <QString>
+#include <QVector>
+
+//---------------------------------------------------------------------------
+class PFuncParam {
+  public:
+    PFuncParam() { initParam(); }
+    ~PFuncParam() {}
+
+    void initParam() { fName = "UnDef"; fValue = 0.0; fMap = false; }
+
+    void setParamName(QString name) { fName = name; }
+    void setParamValue(double dval) { fValue = dval; }
+    void setParamMap(bool isMap) { fMap = isMap; }
+
+    QString getParamName() { return fName; }
+    double getParamValue() { return fValue; }
+    bool isMap() { return fMap; }
+
+  private:
+    QString fName;
+    double fValue;
+    bool fMap;
+};
+
+//---------------------------------------------------------------------------
+class PMusrfitFunc {
+  public:
+    PMusrfitFunc() { initFunc(); }
+    ~PMusrfitFunc() {}
+
+    void initFunc();
+
+    void setName(QString name) { fName = name; }
+    void setAbbrv(QString abbrv) { fAbbrv = abbrv; }
+    void setNoOfParam(int ival) { fNoOfParam = ival; }
+    void addFuncParam(PFuncParam param) { fParam.push_back(param); }
+
+    QString getName() { return fName; }
+    QString getAbbrv() { return fAbbrv; }
+    int getNoOfParam() { return fNoOfParam; }
+    PFuncParam getFuncParam(int idx);
+    QVector<PFuncParam> *getFuncParams() { return &fParam; }
+
+  private:
+    QString fName;
+    QString fAbbrv;
+    int fNoOfParam;
+    QVector<PFuncParam> fParam;
+};
+
+#endif // _PMUSRFITFUNC_H_
diff --git a/src/musredit_qt6/musrWiz/PTheoTemplate.cpp b/src/musredit_qt6/musrWiz/PTheoTemplate.cpp
new file mode 100644
index 00000000..7fb1e8c4
--- /dev/null
+++ b/src/musredit_qt6/musrWiz/PTheoTemplate.cpp
@@ -0,0 +1,156 @@
+/***************************************************************************
+
+  PTheoTemplate.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include "PTheoTemplate.h"
+
+//---------------------------------------------------------------------------
+/**
+ *
+ */
+void PTheoTemplate::init()
+{
+  fPreDefName = QString("");
+  fTheory = QString("");
+  fParam.clear();
+  fFunc.clear();
+  fMap.clear();
+}
+
+//---------------------------------------------------------------------------
+/**
+ *
+ */
+QString PTheoTemplate::getFunc(int idx)
+{
+  if ((idx < 0) || (idx >= fFunc.size()))
+    return QString("");
+
+  return fFunc[idx];
+}
+
+//---------------------------------------------------------------------------
+/**
+ *
+ */
+int PTheoTemplate::getFuncNo(int idx)
+{
+  if ((idx < 0) || (idx >= fFunc.size()))
+    return -1;
+
+  QString funStr = fFunc[idx];
+  int idxEnd = funStr.indexOf("=");
+  funStr.remove(idxEnd, funStr.length()-idxEnd);
+  funStr.remove(0,3);
+
+  bool ok;
+  int ival = funStr.toInt(&ok);
+  if (!ok)
+    return -1;
+
+  return ival;
+}
+
+//---------------------------------------------------------------------------
+/**
+ *
+ */
+PParam PTheoTemplate::getMap(int idx)
+{
+  PParam map;
+
+  if ((idx < 0) || (idx >= fMap.size()))
+    return map;
+
+  return fMap[idx];
+}
+
+//---------------------------------------------------------------------------
+/**
+ *
+ */
+PParam PTheoTemplate::getParam(int idx)
+{
+  PParam param;
+
+  if ((idx < 0) || (idx >= fParam.size()))
+    return param;
+
+  return fParam[idx];
+}
+
+//---------------------------------------------------------------------------
+/**
+ *
+ */
+void PTheoTemplate::appendFunc(QString str)
+{
+  // for now just push function string. In the future it might be
+  // wise to check if the function is already present.
+  fFunc.push_back(str);
+}
+
+//---------------------------------------------------------------------------
+/**
+ *
+ */
+void PTheoTemplate::appendMap(PParam map)
+{
+  bool found = false;
+  for (int i=0; i<fMap.size(); i++) {
+    if (fMap[i].getNumber() == map.getNumber()) {
+      found = true;
+      break;
+    }
+  }
+
+  if (!found)
+    fMap.push_back(map);
+}
+
+//---------------------------------------------------------------------------
+/**
+ *
+ */
+void PTheoTemplate::appendParam(PParam param)
+{
+  bool found = false;
+  for (int i=0; i<fParam.size(); i++) {
+    if (fParam[i].getNumber() == param.getNumber()) {
+      found = true;
+      break;
+    }
+  }
+
+  if (!found)
+    fParam.push_back(param);
+}
+
+//---------------------------------------------------------------------------
+// END
+//---------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musrWiz/PTheoTemplate.h b/src/musredit_qt6/musrWiz/PTheoTemplate.h
new file mode 100644
index 00000000..822cdf00
--- /dev/null
+++ b/src/musredit_qt6/musrWiz/PTheoTemplate.h
@@ -0,0 +1,69 @@
+/***************************************************************************
+
+  PTheoTemplate.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PTHEOTEMPLATE_H_
+#define _PTHEOTEMPLATE_H_
+
+#include <QString>
+#include <QVector>
+
+#include "musrWiz.h"
+
+class PTheoTemplate {
+  public:
+    PTheoTemplate() { init(); }
+    ~PTheoTemplate() {}
+
+    void init();
+
+    QString getName() { return fPreDefName; }
+    QString getTheory() { return fTheory; }
+    int getNoOfFunc() { return fFunc.size(); }
+    QString getFunc(int idx);
+    int getFuncNo(int idx);
+    int getNoOfMap() { return fMap.size(); }
+    PParam getMap(int idx);
+    int getNoOfParam() { return fParam.size(); }
+    PParam getParam(int idx);
+
+    void setName(QString str) { fPreDefName = str; }
+    void setTheory(QString str) { fTheory = str; }
+    void appendFunc(QString str);
+    void appendParam(PParam param);
+    void appendMap(PParam map);
+
+  private:
+    QString fPreDefName;
+    QString fTheory;
+    QVector<PParam> fParam;
+    QVector<QString> fFunc;
+    QVector<PParam> fMap;
+};
+
+#endif // _PTHEOTEMPLATE_H_
diff --git a/src/musredit_qt6/musrWiz/README.md b/src/musredit_qt6/musrWiz/README.md
new file mode 100644
index 00000000..be204701
--- /dev/null
+++ b/src/musredit_qt6/musrWiz/README.md
@@ -0,0 +1 @@
+A wizard to create msr-files for a given instrument from scratch
\ No newline at end of file
diff --git a/src/musredit_qt6/musrWiz/func_defs/musrfit_funcs.xml b/src/musredit_qt6/musrWiz/func_defs/musrfit_funcs.xml
new file mode 100644
index 00000000..d569d481
--- /dev/null
+++ b/src/musredit_qt6/musrWiz/func_defs/musrfit_funcs.xml
@@ -0,0 +1,502 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<musrfit-functions>
+  <!-- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
+  <!-- theory function templates -->
+  <!-- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
+  <theo_template>
+    <pre_def_name>T: 1 [exp x cos](TF)</pre_def_name>
+    <theory>a 1\nse 2\ntf fun1 4</theory>
+    <theo_fun>fun1=par3+map1</theo_fun>
+    <theo_map no="1" name="RelPh"/>
+    <template_param no="1" name="Asy" value="0.2" step="0.02"/>
+    <template_param no="2" name="Lambda" value="0.5" step="0.02"/>
+    <template_param no="3" name="Ph" value="0.0" step="10.0"/>
+    <template_param no="4" name="Frq" value="100.0" step="1.0"/>
+  </theo_template>
+  <theo_template>
+    <pre_def_name>T: 2 [exp x cos](TF)</pre_def_name>
+    <theory>a 1\nse 2\ntf fun1 4\n+\na 5\nse 6\ntf fun1 7</theory>
+    <theo_fun>fun1=par3+map1</theo_fun>
+    <theo_map no="1" name="RelPh"/>
+    <template_param no="1" name="Asy_0" value="0.1" step="0.02"/>
+    <template_param no="2" name="Lambda_0" value="0.5" step="0.02"/>
+    <template_param no="3" name="Ph" value="0.0" step="10.0"/>
+    <template_param no="4" name="Frq_0" value="100.0" step="1.0"/>
+    <template_param no="5" name="Asy_1" value="0.1" step="0.02"/>
+    <template_param no="6" name="Lambda_1" value="0.5" step="0.02"/>
+    <template_param no="7" name="Frq_1" value="110.0" step="1.0"/>
+  </theo_template>
+  <theo_template>
+    <pre_def_name>T: 3 [exp x cos](TF)</pre_def_name>
+    <theory>a 1\nse 2\ntf fun1 4\n+\na 5\nse 6\ntf fun1 7\n+\na 8\nse 9\ntf fun1 10</theory>
+    <theo_fun>fun1=par3+map1</theo_fun>
+    <theo_map no="1" name="RelPh"/>
+    <template_param no="1" name="Asy_0" value="0.1" step="0.02"/>
+    <template_param no="2" name="Lambda_0" value="0.5" step="0.02"/>
+    <template_param no="3" name="Ph" value="0.0" step="10.0"/>
+    <template_param no="4" name="Frq_0" value="100.0" step="1.0"/>
+    <template_param no="5" name="Asy_1" value="0.1" step="0.02"/>
+    <template_param no="6" name="Lambda_1" value="0.5" step="0.1"/>
+    <template_param no="7" name="Frq_1" value="110.0" step="1.0"/>
+    <template_param no="8" name="Asy_2" value="0.1" step="0.02"/>
+    <template_param no="9" name="Lambda_2" value="1.5" step="0.1"/>
+    <template_param no="10" name="Frq_2" value="120.0" step="1.0"/>
+  </theo_template>
+  <theo_template>
+    <pre_def_name>T: 1 [gauss x cos](TF)</pre_def_name>
+    <theory>a 1\nsg 2\ntf fun1 4</theory>
+    <theo_fun>fun1=par3+map1</theo_fun>
+    <theo_map no="1" name="RelPh"/>
+    <template_param no="1" name="Asy" value="0.2" step="0.02"/>
+    <template_param no="2" name="Sigma" value="0.5" step="0.02"/>
+    <template_param no="3" name="Ph" value="0.0" step="10.0"/>
+    <template_param no="4" name="Frq" value="100.0" step="1.0"/>
+  </theo_template>
+  <theo_template>
+    <pre_def_name>T: 2 [gauss x cos](TF)</pre_def_name>
+    <theory>a 1\nsg 2\ntf fun1 4\n+\na 5\nsg 6\ntf fun1 7</theory>
+    <theo_fun>fun1=par3+map1</theo_fun>
+    <theo_map no="1" name="RelPh"/>
+    <template_param no="1" name="Asy_0" value="0.1" step="0.02"/>
+    <template_param no="2" name="Sigma_0" value="0.5" step="0.02"/>
+    <template_param no="3" name="Ph" value="0.0" step="10.0"/>
+    <template_param no="4" name="Frq_0" value="100.0" step="1.0"/>
+    <template_param no="5" name="Asy_1" value="0.1" step="0.02"/>
+    <template_param no="6" name="Sigma_1" value="0.5" step="0.02"/>
+    <template_param no="7" name="Frq_1" value="110.0" step="1.0"/>
+  </theo_template>
+  <theo_template>
+    <pre_def_name>T: 3 [gauss x cos](TF)</pre_def_name>
+    <theory>a 1\nsg 2\ntf fun1 4\n+\na 5\nsg 6\ntf fun1 7\n+\na 8\nsg 9\ntf fun1 10</theory>
+    <theo_fun>fun1=par3+map1</theo_fun>
+    <theo_map no="1" name="RelPh"/>
+    <template_param no="1" name="Asy_0" value="0.1" step="0.02"/>
+    <template_param no="2" name="Sigma_0" value="0.5" step="0.02"/>
+    <template_param no="3" name="Ph" value="0.0" step="10.0"/>
+    <template_param no="4" name="Frq_0" value="100.0" step="1.0"/>
+    <template_param no="5" name="Asy_1" value="0.1" step="0.02"/>
+    <template_param no="6" name="Sigma_1" value="0.5" step="0.1"/>
+    <template_param no="7" name="Frq_1" value="110.0" step="1.0"/>
+    <template_param no="8" name="Asy_2" value="0.1" step="0.02"/>
+    <template_param no="9" name="Sigma_2" value="1.5" step="0.1"/>
+    <template_param no="10" name="Frq_2" value="120.0" step="1.0"/>
+  </theo_template>
+  <!-- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
+  <!-- List of all predefined theory functions -->
+  <!-- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
+  <!-- Asymmetry -->
+  <func>
+    <name>asymmetry</name>
+    <abbrv>a</abbrv>
+    <no_of_parameters>1</no_of_parameters>
+    <parameter>
+      <param_name>Asym</param_name>
+      <param_value>0.2</param_value>
+    </parameter>
+  </func>
+  <!-- Exp -->
+  <func>
+    <name>simplExpo</name>
+    <abbrv>se</abbrv>
+    <no_of_parameters>1</no_of_parameters>
+    <parameter>
+      <param_name>Lambda</param_name>
+      <param_value>0.5</param_value>
+    </parameter>
+  </func>
+  <!-- Gaussian -->
+  <func>
+    <name>simpleGss</name>
+    <abbrv>sg</abbrv>
+    <no_of_parameters>1</no_of_parameters>
+    <parameter>
+      <param_name>Sigma</param_name>
+      <param_value>0.5</param_value>
+    </parameter>
+  </func>
+  <!-- Streteched Exp -->
+  <func>
+    <name>generExpo</name>
+    <abbrv>ge</abbrv>
+    <no_of_parameters>2</no_of_parameters>
+    <parameter>
+      <param_name>Lambda</param_name>
+      <param_value>0.5</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Beta</param_name>
+      <param_value>1.5</param_value>
+    </parameter>
+  </func>
+  <!-- Cos -->
+  <func>
+    <name>TFieldCos</name>
+    <abbrv>tf</abbrv>
+    <no_of_parameters>2</no_of_parameters>
+    <parameter>
+      <param_name>Ph</param_name>
+      <param_value>0.0</param_value>
+      <param_is_map>y</param_is_map>
+    </parameter>
+    <parameter>
+      <param_name>Freq</param_name>
+      <param_value>10.0</param_value>
+    </parameter>
+  </func>
+  <!-- internal field -->
+  <func>
+    <name>internFld</name>
+    <abbrv>if</abbrv>
+    <no_of_parameters>5</no_of_parameters>
+    <parameter>
+      <param_name>Weight</param_name>
+      <param_value>0.66</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Ph</param_name>
+      <param_value>0.0</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Freq</param_name>
+      <param_value>10.0</param_value>
+    </parameter>
+    <parameter>
+      <param_name>LambdaT</param_name>
+      <param_value>0.5</param_value>
+    </parameter>
+    <parameter>
+      <param_name>LambdaL</param_name>
+      <param_value>0.1</param_value>
+    </parameter>
+  </func>
+  <!-- Bessel -->
+  <func>
+    <name>Bessel</name>
+    <abbrv>b</abbrv>
+    <no_of_parameters>2</no_of_parameters>
+    <parameter>
+      <param_name>Ph</param_name>
+      <param_value>0.0</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Freq</param_name>
+      <param_value>10.0</param_value>
+    </parameter>
+  </func>
+  <!-- internal Bessel -->
+  <func>
+    <name>internBsl</name>
+    <abbrv>ib</abbrv>
+    <no_of_parameters>5</no_of_parameters>
+    <parameter>
+      <param_name>Weight</param_name>
+      <param_value>0.66</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Ph</param_name>
+      <param_value>0.0</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Freq</param_name>
+      <param_value>10.0</param_value>
+    </parameter>
+    <parameter>
+      <param_name>LambdaT</param_name>
+      <param_value>0.5</param_value>
+    </parameter>
+    <parameter>
+      <param_name>LambdaL</param_name>
+      <param_value>0.1</param_value>
+    </parameter>
+  </func>
+  <!-- GKT ZF -->
+  <func>
+    <name>statGssKT</name>
+    <abbrv>stg</abbrv>
+    <no_of_parameters>1</no_of_parameters>
+    <parameter>
+      <param_name>Sigma</param_name>
+      <param_value>0.3</param_value>
+    </parameter>
+  </func>
+  <!-- GKT LF -->
+  <func>
+    <name>statGssKTLF</name>
+    <abbrv>sgktlf</abbrv>
+    <no_of_parameters>2</no_of_parameters>
+    <parameter>
+      <param_name>Hopp</param_name>
+      <param_value>0.1</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Sigma</param_name>
+      <param_value>0.3</param_value>
+    </parameter>
+  </func>
+  <!-- GKT LF dynamic -->
+  <func>
+    <name>dynGssKTLF</name>
+    <abbrv>dgktlf</abbrv>
+    <no_of_parameters>3</no_of_parameters>
+    <parameter>
+      <param_name>Freq</param_name>
+      <param_value>0.0</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Sigma</param_name>
+      <param_value>0.3</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Gamma</param_name>
+      <param_value>0.5</param_value>
+    </parameter>
+  </func>
+  <!-- expKT ZF -->
+  <func>
+    <name>statExpKT</name>
+    <abbrv>sekt</abbrv>
+    <no_of_parameters>1</no_of_parameters>
+    <parameter>
+      <param_name>Lambda</param_name>
+      <param_value>0.3</param_value>
+    </parameter>
+  </func>
+  <!-- expKT LF -->
+  <func>
+    <name>statExpKTLF</name>
+    <abbrv>sektlf</abbrv>
+    <no_of_parameters>2</no_of_parameters>
+    <parameter>
+      <param_name>Hopp</param_name>
+      <param_value>0.1</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Lambda</param_name>
+      <param_value>0.3</param_value>
+    </parameter>
+  </func>
+  <!-- expKT LF dynamic -->
+  <func>
+    <name>dynExpKTLF</name>
+    <abbrv>dektlf</abbrv>
+    <no_of_parameters>3</no_of_parameters>
+    <parameter>
+      <param_name>Freq</param_name>
+      <param_value>0.1</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Lambda</param_name>
+      <param_value>0.3</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Gamma</param_name>
+      <param_value>0.5</param_value>
+    </parameter>      
+  </func>
+  <!-- KT Exp+Gaussian ZF -->
+  <func>
+    <name>combiLGKT</name>
+    <abbrv>lgkt</abbrv>
+    <no_of_parameters>2</no_of_parameters>
+    <parameter>
+      <param_name>Lambda</param_name>
+      <param_value>0.2</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Sigma</param_name>
+      <param_value>0.3</param_value>
+    </parameter>
+  </func>
+  <!-- KT Stretched -->
+  <func>
+    <name>strKT</name>
+    <abbrv>skt</abbrv>
+    <no_of_parameters>2</no_of_parameters>
+    <parameter>
+      <param_name>Sigma</param_name>
+      <param_value>0.3</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Beta</param_name>
+      <param_value>2.0</param_value>
+    </parameter>
+  </func>
+  <!-- Spin Glass Function -->
+  <func>
+    <name>spinGlass</name>
+    <abbrv>spg</abbrv>
+    <no_of_parameters>3</no_of_parameters>
+    <parameter>
+      <param_name>Lambda</param_name>
+      <param_value>0.3</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Gamma</param_name>
+      <param_value>0.1</param_value>
+    </parameter>
+    <parameter>
+      <param_name>q</param_name>
+      <param_value>0.8</param_value>
+    </parameter>
+  </func>
+  <!-- Random Anisotropy Hyperfine Fiels -->
+  <func>
+    <name>rdAnisoHf</name>
+    <abbrv>rahf</abbrv>
+    <no_of_parameters>2</no_of_parameters>
+    <parameter>
+      <param_name>Nu</param_name>
+      <param_value>1.5</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Lambda</param_name>
+      <param_value>0.3</param_value>
+    </parameter>
+  </func>
+  <!-- Abragam -->
+  <func>
+    <name>abragam</name>
+    <abbrv>ab</abbrv>
+    <no_of_parameters>2</no_of_parameters>
+    <parameter>
+      <param_name>Sigma</param_name>
+      <param_value>0.5</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Gamma</param_name>
+      <param_value>0.2</param_value>
+    </parameter>
+  </func>
+  <!-- skewed Gaussian -->
+  <func>
+    <name>skewedGss</name>
+    <abbrv>skg</abbrv>
+    <no_of_parameters>4</no_of_parameters>
+    <parameter>
+      <param_name>Ph</param_name>
+      <param_value>0.0</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Freq</param_name>
+      <param_value>10.0</param_value>
+    </parameter>
+    <parameter>
+      <param_name>SigmaPlus</param_name>
+      <param_value>1.1</param_value>
+    </parameter>
+    <parameter>
+      <param_name>SigmaMinus</param_name>
+      <param_value>0.3</param_value>
+    </parameter>
+  </func>
+  <!-- static Noakes Kalvius ZF function -->
+  <func>
+    <name>staticNKZF</name>
+    <abbrv>snkzf</abbrv>
+    <no_of_parameters>2</no_of_parameters>
+    <parameter>
+      <param_name>Delta</param_name>
+      <param_value>0.5</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Rb</param_name>
+      <param_value>0.2</param_value>
+    </parameter>
+  </func>
+  <!-- static Noakes Kalvius TF function -->
+  <func>
+    <name>staticNKTF</name>
+    <abbrv>snktf</abbrv>
+    <no_of_parameters>4</no_of_parameters>
+    <parameter>
+      <param_name>Ph</param_name>
+      <param_value>0.0</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Frq</param_name>
+      <param_value>10.5</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Delta</param_name>
+      <param_value>0.5</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Rb</param_name>
+      <param_value>0.2</param_value>
+    </parameter>
+  </func>
+  <!-- dynamic Noakes Kalvius ZF function -->
+  <func>
+    <name>dynamicNKZF</name>
+    <abbrv>dnkzf</abbrv>
+    <no_of_parameters>3</no_of_parameters>
+    <parameter>
+      <param_name>Delta</param_name>
+      <param_value>0.5</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Rb</param_name>
+      <param_value>0.2</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Hopp</param_name>
+      <param_value>1.0</param_value>
+    </parameter>
+  </func>  
+  <!-- dynamic Noakes Kalvius TF function -->
+  <func>
+    <name>dynamicNKTF</name>
+    <abbrv>dnktf</abbrv>
+    <no_of_parameters>5</no_of_parameters>
+    <parameter>
+      <param_name>Ph</param_name>
+      <param_value>0.0</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Frq</param_name>
+      <param_value>10.5</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Delta</param_name>
+      <param_value>0.5</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Rb</param_name>
+      <param_value>0.2</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Hopp</param_name>
+      <param_value>1.0</param_value>
+    </parameter>
+  </func>
+  <!-- mu^- exp TF -->
+  <func>
+    <name>muMinusExpTF</name>
+    <abbrv>mmsetf</abbrv>
+    <no_of_parameters>6</no_of_parameters>
+    <parameter>
+      <param_name>N0</param_name>
+      <param_value>100.0</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Tau</param_name>
+      <param_value>1.0</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Asym</param_name>
+      <param_value>0.08</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Lambda</param_name>
+      <param_value>1.1</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Ph</param_name>
+      <param_value>0.0</param_value>
+    </parameter>
+    <parameter>
+      <param_name>Frq</param_name>
+      <param_value>10.2</param_value>
+    </parameter>
+  </func>
+</musrfit-functions>
diff --git a/src/musredit_qt6/musrWiz/icons/musrWiz-22x22-dark.svg b/src/musredit_qt6/musrWiz/icons/musrWiz-22x22-dark.svg
new file mode 100644
index 00000000..69f78f45
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diff --git a/src/musredit_qt6/musrWiz/icons/musrWiz-32x32.png b/src/musredit_qt6/musrWiz/icons/musrWiz-32x32.png
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new file mode 100644
index 00000000..1b3cafe5
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diff --git a/src/musredit_qt6/musrWiz/icons/musrWiz.icns b/src/musredit_qt6/musrWiz/icons/musrWiz.icns
new file mode 100644
index 00000000..1b8773c6
Binary files /dev/null and b/src/musredit_qt6/musrWiz/icons/musrWiz.icns differ
diff --git a/src/musredit_qt6/musrWiz/instrument_defs/instrument_def_isis.xml b/src/musredit_qt6/musrWiz/instrument_defs/instrument_def_isis.xml
new file mode 100644
index 00000000..7b5e2135
--- /dev/null
+++ b/src/musredit_qt6/musrWiz/instrument_defs/instrument_def_isis.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<instrument_def_isis xmlns="http://www.isis.stfc.ac.uk/instruments/hifi/">
+  <institute>ISIS</institute>
+   <!-- +++++++++++++++++++++++++++ H I F I ++++++++++++++++++++++++++++++++++++ -->
+   <instrument name="HIFI">
+     <run_name_template>HIFINNNNNNNN</run_name_template>
+     <beamline>HIFI</beamline>
+     <data_file_format>NEXUS</data_file_format>
+     <tf>
+       <no_of_detectors>128</no_of_detectors>
+       <fgb_offset>0</fgb_offset>
+       <lgb>2047</lgb>
+       <logic_detector name="L" rel_phase="0" forward="5 6 7 8 9 10 11 12 13 52 53 54 55 56 57 58 59 60" note="green"/>
+       <logic_detector name="R" rel_phase="90" forward="21 22 23 24 25 26 27 28 29 36 37 38 39 40 41 42 43 44" note="green"/>
+     </tf>
+     <zf>
+       <!-- not yet defined -->
+     </zf>
+     <lf>
+       <!-- not yet defined -->
+     </lf>
+   </instrument>
+</instrument_def_isis>
\ No newline at end of file
diff --git a/src/musredit_qt6/musrWiz/instrument_defs/instrument_def_psi.xml b/src/musredit_qt6/musrWiz/instrument_defs/instrument_def_psi.xml
new file mode 100644
index 00000000..3c703ede
--- /dev/null
+++ b/src/musredit_qt6/musrWiz/instrument_defs/instrument_def_psi.xml
@@ -0,0 +1,166 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<instrument_def_psi xmlns="https://www.psi.ch/lmu/instrumentation">
+  <institute>PSI</institute>
+  <!-- +++++++++++++++++++++++++++ H A L 9 5 0 0 ++++++++++++++++++++++++++++++++++++ -->
+  <instrument name="HAL9500">
+    <run_name_template>dYYYY/tdc/tdc_hifi_YYYY_NNNNN </run_name_template>
+    <beamline>PIE3</beamline>
+    <data_file_format>PSI-MDU</data_file_format>    
+    <tf>
+      <no_of_detectors>16</no_of_detectors>
+      <fgb_offset>50</fgb_offset>
+      <lgb>409500</lgb>
+      <asym_bkg_range>500 15000</asym_bkg_range>
+      <logic_detector name="F1" rel_phase="0.0" forward="2"/>
+      <logic_detector name="F2" rel_phase="45.0" forward="3"/>
+      <logic_detector name="F3" rel_phase="90.0" forward="4"/>
+      <logic_detector name="F4" rel_phase="135.0" forward="5"/>
+      <logic_detector name="F5" rel_phase="180.0" forward="6"/>
+      <logic_detector name="F6" rel_phase="225.0" forward="7"/>
+      <logic_detector name="F7" rel_phase="270.0" forward="8"/>
+      <logic_detector name="F8" rel_phase="315.0" forward="9"/>
+      <logic_detector name="B1" rel_phase="0.0" forward="10"/>
+      <logic_detector name="B2" rel_phase="45.0" forward="11"/>
+      <logic_detector name="B3" rel_phase="90.0" forward="12"/>
+      <logic_detector name="B4" rel_phase="135.0" forward="13"/>
+      <logic_detector name="B5" rel_phase="180.0" forward="14"/>
+      <logic_detector name="B6" rel_phase="225.0" forward="15"/>
+      <logic_detector name="B7" rel_phase="270.0" forward="16"/>
+      <logic_detector name="B8" rel_phase="315.0" forward="17"/>
+      <logic_asym_detector name="F15" rel_phase="0.0" forward="2" backward="6" alpha="1.0"/>
+      <logic_asym_detector name="F26" rel_phase="45.0" forward="3" backward="7" alpha="1.0"/>
+      <logic_asym_detector name="F37" rel_phase="90.0" forward="4" backward="8" alpha="1.0"/>
+      <logic_asym_detector name="F48" rel_phase="135.0" forward="5" backward="9" alpha="1.0"/>
+      <logic_asym_detector name="B15" rel_phase="0.0" forward="10" backward="14" alpha="1.0"/>
+      <logic_asym_detector name="B26" rel_phase="45.0" forward="11" backward="15" alpha="1.0"/>
+      <logic_asym_detector name="B37" rel_phase="90.0" forward="12" backward="16" alpha="1.0"/>
+      <logic_asym_detector name="B48" rel_phase="135.0" forward="13" backward="17" alpha="1.0"/>
+    </tf>
+    <zf>
+      <!-- not yet defined -->
+    </zf>
+    <lf>
+      <!-- not yet defined -->
+    </lf>
+  </instrument>
+  <!-- +++++++++++++++++++++++++++ L E M +++++++++++++++++++++++++++++++++++++++++++++++++ -->
+  <instrument name="LEM">
+    <run_name_template>YYYY/lemYY_his_NNNN</run_name_template>
+    <beamline>MUE4</beamline>
+    <data_file_format>MUSR-ROOT</data_file_format>    
+    <tf name="WEW NPP">
+      <no_of_detectors>8</no_of_detectors>
+      <fgb_offset>0</fgb_offset>
+      <lgb>63000</lgb>
+      <asym_bkg_range>200 1500</asym_bkg_range>
+      <logic_detector name="L" rel_phase="0.0" forward="1 5"/>
+      <logic_detector name="T" rel_phase="-90.0" forward="2 6"/>
+      <logic_detector name="R" rel_phase="180.0" forward="3 7"/>
+      <logic_detector name="B" rel_phase="90.0" forward="4 8"/>
+      <logic_asym_detector name="LR" rel_phase="0.0" forward="1 5" backward="3 7" alpha="1.0"/>
+      <logic_asym_detector name="TB" rel_phase="-90.0" forward="2 6" backward="4 8" alpha="1.0"/>
+    </tf>
+    <tf name="WEW PPC">
+      <no_of_detectors>8</no_of_detectors>
+      <fgb_offset>0</fgb_offset>
+      <lgb>63000</lgb>
+      <asym_bkg_range>200 1500</asym_bkg_range>
+      <logic_detector name="L" rel_phase="0.0" forward="21 25"/>
+      <logic_detector name="T" rel_phase="-90.0" forward="22 26"/>
+      <logic_detector name="R" rel_phase="180.0" forward="23 27"/>
+      <logic_detector name="B" rel_phase="90.0" forward="24 28"/>
+      <logic_asym_detector name="LR" rel_phase="0.0" forward="21 25" backward="23 27" alpha="1.0"/>
+      <logic_asym_detector name="TB" rel_phase="-90.0" forward="22 26" backward="24 28" alpha="1.0"/>
+    </tf>
+    <tf name="Bpar NPP">
+      <no_of_detectors>4</no_of_detectors>
+      <fgb_offset>0</fgb_offset>
+      <lgb>63000</lgb>
+      <asym_bkg_range>200 1500</asym_bkg_range>
+      <logic_detector name="L" rel_phase="0.0" forward="1 5"/>
+      <logic_detector name="R" rel_phase="160.0" forward="3 7"/>
+      <logic_asym_detector name="LR" rel_phase="0.0" forward="1 5" backward="3 7" alpha="1.0"/>
+    </tf>
+    <tf name="Bpar PPC">
+      <no_of_detectors>4</no_of_detectors>
+      <fgb_offset>0</fgb_offset>
+      <lgb>63000</lgb>
+      <asym_bkg_range>200 1500</asym_bkg_range>
+      <logic_detector name="L" rel_phase="0.0" forward="21 25"/>
+      <logic_detector name="R" rel_phase="160.0" forward="23 27"/>
+      <logic_asym_detector name="LR" rel_phase="0.0" forward="21 25" backward="23 27" alpha="1.0"/>
+    </tf>
+    <zf name="NPP">
+      <no_of_detectors>4</no_of_detectors>
+      <fgb_offset>0</fgb_offset>
+      <lgb>63000</lgb>
+      <asym_bkg_range>200 1500</asym_bkg_range>
+      <logic_asym_detector name="LR" rel_phase="0.0" forward="1 5" backward="3 7" alpha="1.0"/>
+    </zf>
+    <zf name="PPC">
+      <no_of_detectors>4</no_of_detectors>
+      <fgb_offset>0</fgb_offset>
+      <lgb>63000</lgb>
+      <asym_bkg_range>200 1500</asym_bkg_range>
+      <logic_asym_detector name="LR" rel_phase="0.0" forward="21 25" backward="23 27" alpha="1.0"/>
+    </zf>
+    <lf name="NPP">
+      <no_of_detectors>8</no_of_detectors>
+      <fgb_offset>0</fgb_offset>
+      <lgb>63000</lgb>
+      <asym_bkg_range>200 1500</asym_bkg_range>
+      <logic_asym_detector name="UD" rel_phase="0.0" forward="1 2 3 4" backward="5 6 7 8" alpha="1.0"/>
+    </lf>
+    <lf name="PPC">
+      <no_of_detectors>8</no_of_detectors>
+      <fgb_offset>0</fgb_offset>
+      <lgb>63000</lgb>
+      <asym_bkg_range>200 1500</asym_bkg_range>
+      <logic_asym_detector name="UD" rel_phase="0.0" forward="21 22 23 24" backward="25 26 27 28" alpha="1.0"/>
+    </lf>
+  </instrument>
+  <!-- +++++++++++++++++++++++++++ G P S +++++++++++++++++++++++++++++++++++++++++++++++++ -->
+  <instrument name="GPS">
+    <run_name_template>dYYYY/tdc/deltat_tdc_gps_NNNN</run_name_template>
+    <beamline>PIM3</beamline>
+    <data_file_format>PSI-BIN</data_file_format>
+    <tf name="WEP">
+      <no_of_detectors>6</no_of_detectors>
+      <fgb_offset>10</fgb_offset>
+      <lgb>25600</lgb>
+      <asym_bkg_range>50 300</asym_bkg_range>
+      <logic_detector name="B" rel_phase="-45.0" forward="2"/>
+      <logic_detector name="U" rel_phase="45.0" forward="3"/>
+      <logic_detector name="F" rel_phase="135.0" forward="1"/>
+      <logic_detector name="D" rel_phase="225.0" forward="4"/>
+      <logic_asym_detector name="FB" rel_phase="-45.0" forward="2" backward="1" alpha="0.75"/>
+      <logic_asym_detector name="UD" rel_phase="45" forward="3" backward="4" alpha="1.0"/>
+    </tf>
+    <tf name="WED(L)">
+      <no_of_detectors>6</no_of_detectors>
+      <fgb_offset>10</fgb_offset>
+      <lgb>25600</lgb>
+      <asym_bkg_range>50 300</asym_bkg_range>
+      <logic_detector name="U" rel_phase="0.0" forward="3"/>
+      <logic_detector name="D" rel_phase="180.0" forward="4"/>
+      <logic_detector name="R" rel_phase="90.0" forward="5"/>
+      <logic_detector name="L" rel_phase="-90.0" forward="6"/>
+      <logic_asym_detector name="UD" rel_phase="0.0" forward="3" backward="4" alpha="1.0"/>
+      <logic_asym_detector name="RL" rel_phase="-90.0" forward="5" backward="6" alpha="1.0"/>
+    </tf>
+    <zf>
+      <no_of_detectors>6</no_of_detectors>
+      <fgb_offset>10</fgb_offset>
+      <lgb>25600</lgb>
+      <asym_bkg_range>50 300</asym_bkg_range>
+      <logic_asym_detector name="FB" rel_phase="0.0" forward="2" backward="1" alpha="0.5"/>
+    </zf>
+    <lf name="WED(L)">
+      <no_of_detectors>6</no_of_detectors>
+      <fgb_offset>20</fgb_offset>
+      <lgb>25600</lgb>
+      <asym_bkg_range>50 300</asym_bkg_range>
+      <logic_asym_detector name="FB" rel_phase="0.0" forward="2" backward="1" alpha="0.5"/>      
+    </lf>
+  </instrument>
+</instrument_def_psi>
diff --git a/src/musredit_qt6/musrWiz/musrWiz.cpp b/src/musredit_qt6/musrWiz/musrWiz.cpp
new file mode 100644
index 00000000..68d09d62
--- /dev/null
+++ b/src/musredit_qt6/musrWiz/musrWiz.cpp
@@ -0,0 +1,140 @@
+#include <iostream>
+#include <fstream>
+
+#include <QApplication>
+#include <QProcess>
+#include <QMessageBox>
+#include <QObject>
+
+#include "git-revision.h"
+#include "musrWiz.h"
+#include "PAdmin.h"
+#include "PMusrWiz.h"
+
+//-------------------------------------------------------------------
+/**
+ *
+ */
+void PParam::init()
+{
+  fName = QString("UnDef");
+  fNumber = -1;
+  fValue = 0.0;
+  fStep = 0.0;
+  fPosErr = QString("UnDef");
+  fBoundLow = QString("UnDef");
+  fBoundHigh = QString("UnDef");
+}
+
+//-------------------------------------------------------------------
+/**
+ *
+ */
+void musrWiz_syntax()
+{
+  std::cout << "usage: musrWiz [[--version | -v] | --debug [0|1|2] | --help]" << std::endl << std::endl;
+  std::cout << "       --version | -v : print current git-version." << std::endl;
+  std::cout << "       --debug 0 : dump's the instrument definition(s) at startup." << std::endl;
+  std::cout << "       --debug 1 : dump's the musrfit functions at startup." << std::endl;
+  std::cout << "       --debug 2 : dump's the musrfit functions and instrument definition(s) at startup." << std::endl;
+  std::cout << "       --log     : writes a log-file 'musrWiz.log' which contains the path-file-name of" << std::endl;
+  std::cout << "                   the created msr-file." << std::endl;
+  std::cout << "       --help    : shows this help." << std::endl << std::endl;
+}
+
+//-------------------------------------------------------------------
+/**
+ *
+ */
+int main(int argc, char *argv[])
+{
+  int dump = -1;
+  bool logFile = false;
+
+  if (argc == 2) {
+    if (!strcmp(argv[1], "--version") || (!strcmp(argv[1], "-v"))) {
+      std::cout << std::endl << "musrWiz - git-branch: " << GIT_BRANCH << ", git-rev: " << GIT_CURRENT_SHA1 << std::endl << std::endl;
+      return 0;
+    } else if (!strcmp(argv[1], "--help")) {
+      musrWiz_syntax();
+      return 0;
+    } else if (!strcmp(argv[1], "--log")) { // thought to be used from within musredit only
+      logFile = true;
+    } else {
+      musrWiz_syntax();
+      return 0;
+    }
+  } else if (argc == 3) {
+    dump = atoi(argv[2]);
+    if ((dump < 0) || (dump > 2)) {
+      musrWiz_syntax();
+      return 0;
+    }
+  }
+
+  Q_INIT_RESOURCE(musrWiz);
+
+  QApplication app(argc, argv);
+
+  PAdmin *admin = new PAdmin();
+  if (!admin->IsValid()) {
+    delete admin;
+    return 1;
+  }
+  admin->dump(dump);
+
+  PMsrData *info = new PMsrData(); // this content will eventually be set by the xml-handler
+
+  PMusrWiz wizard(admin, info);
+  wizard.show();
+
+  app.exec();
+
+  int result = wizard.result();
+
+  if (result == 1) { // if everything went fine up to this point
+    // check if a log-file shall be written
+    QProcessEnvironment procEnv = QProcessEnvironment::systemEnvironment();
+    QString pathName = procEnv.value("HOME", "");
+    pathName += "/.musrfit/musredit/musrWiz.log";
+    if (logFile) {
+      std::ofstream fout(pathName.toLatin1().data(), std::ofstream::out);
+      fout << "path-file-name: " << info->getMsrPathName().toLatin1().data() << "/" << info->getMsrFileName().toLatin1().data() << std::endl;
+      fout.close();
+    }
+
+    // check if musrt0 shall be called. If the option --log is set, only add musrt0 flag to in the musrWiz.log file
+    if (info->getT0Tag() == T0_FROM_MUSR_T0) {
+      if (logFile) {
+        std::ofstream fout(pathName.toLatin1().data(), std::ofstream::app);
+        fout << "musrt0-tag: yes" << std::endl;
+        fout.close();
+      } else {
+        QString musrt0Path = procEnv.value("MUSRFITPATH", "??");
+        if (musrt0Path == "??") { // not found hence try ROOTSYS
+          musrt0Path = procEnv.value("ROOTSYS", "??");
+          if (musrt0Path != "??") {
+              musrt0Path += "/bin";
+            }
+        }
+
+        if (musrt0Path != "??") {
+          QString musrt0 = musrt0Path + "/musrt0";
+          QString pathFln = QString("%1/%2").arg(info->getMsrPathName()).arg(info->getMsrFileName());
+          QStringList arguments;
+          arguments << pathFln;
+          QProcess::startDetached(musrt0, arguments, "./");
+        } else {
+          QMessageBox::warning(0, "WARNING", "Couldn't find musrt0 :-(.\n Only the msr-file has been generated.");
+        }
+      }
+    }
+  }
+
+  if (info)
+    delete info;
+  if (admin)
+    delete admin;
+
+  return result;
+}
diff --git a/src/musredit_qt6/musrWiz/musrWiz.h b/src/musredit_qt6/musrWiz/musrWiz.h
new file mode 100644
index 00000000..aba308f3
--- /dev/null
+++ b/src/musredit_qt6/musrWiz/musrWiz.h
@@ -0,0 +1,75 @@
+/***************************************************************************
+
+  musrWiz.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+***************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2007-2020 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _MUSRWIZ_H_
+#define _MUSRWIZ_H_
+
+#include <QString>
+
+//-------------------------------------------------------------------
+class PParam {
+  public:
+    PParam() { init(); }
+    ~PParam() {}
+
+    void init();
+
+    QString getName() { return fName; }
+    int getNumber() { return fNumber; }
+    double getValue() { return fValue; }
+    double getStep() { return fStep; }
+    QString getPosErr() { return fPosErr; }
+    QString getBoundLow() { return fBoundLow; }
+    QString getBoundHigh() { return fBoundHigh; }
+
+    void setName(QString str) { fName = str; }
+    void setNumber(int ival) { fNumber = ival; }
+    void setValue(double dval) { fValue = dval; }
+    void setStep(double dval) { fStep = dval; }
+    void setPosErr(QString str) { fPosErr = str; }
+    void setBoundLow(QString str) { fBoundLow = str; }
+    void setBoundHigh(QString str) { fBoundHigh = str; }
+
+  private:
+    QString fName;
+    int fNumber;
+    double fValue;
+    double fStep;
+    QString fPosErr;
+    QString fBoundLow;
+    QString fBoundHigh;
+};
+
+//-------------------------------------------------------------------
+typedef struct {
+  int number;
+  QString fun;
+} PFunc;
+
+#endif // _MUSRWIZ_H_
diff --git a/src/musredit_qt6/musrWiz/musrWiz.pro b/src/musredit_qt6/musrWiz/musrWiz.pro
new file mode 100644
index 00000000..8aa15983
--- /dev/null
+++ b/src/musredit_qt6/musrWiz/musrWiz.pro
@@ -0,0 +1,66 @@
+TEMPLATE = app
+TARGET = musrWiz
+
+# install path for musrWiz
+count( PREFIX, 1 ) {
+    MUSRWIZ_INSTALL_PATH = $${PREFIX}/bin
+}
+isEmpty( MUSRWIZ_INSTALL_PATH ) {
+    MUSR_FIT_PATH = $$(MUSRFITPATH)
+    count( MUSR_FIT_PATH, 1 ) {
+        MUSRWIZ_INSTALL_PATH = $$(MUSRFITPATH)
+    }
+}
+isEmpty( MUSRWIZ_INSTALL_PATH ) {
+    ROOT_SYS_PATH = $$(ROOTSYS)
+    count( ROOT_SYS_PATH, 1 ) {
+        MUSRWIZ_INSTALL_PATH = $$(ROOTSYS)/bin
+    }
+}
+isEmpty( MUSRWIZ_INSTALL_PATH ) {
+    MUSRWIZ_INSTALL_PATH = /usr/local/bin
+}
+
+unix {
+    message( "Determined installation path: $${MUSRWIZ_INSTALL_PATH}" )
+}
+
+unix:target.path = $${MUSRWIZ_INSTALL_PATH}
+macx:target.path = /Applications
+win32:target.path = c:/musrfit/bin
+
+INSTALLS += target
+
+CONFIG += qt \
+    warn_on \
+    release
+
+QT += widgets
+QT += xml
+QT += core
+QT += svg
+
+# set proper permission for Mac OSX
+macx {
+   QMAKE_INSTALL_FILE = install -m 6755 -p -o $$(USER) -g staff
+}
+
+INCLUDEPATH += "../../include"
+
+HEADERS = musrWiz.h \
+          PTheoTemplate.h \
+          PMusrfitFunc.h \
+          PInstrumentDef.h \
+          PAdmin.h \
+          PMusrWiz.h
+
+SOURCES = PTheoTemplate.cpp \
+          PMusrfitFunc.cpp \
+          PInstrumentDef.cpp \
+          PAdmin.cpp \
+          PMusrWiz.cpp \
+          musrWiz.cpp
+
+RESOURCES = musrWiz.qrc
+
+macx:ICON = icons/musrWiz.icns
diff --git a/src/musredit_qt6/musrWiz/musrWiz.qrc b/src/musredit_qt6/musrWiz/musrWiz.qrc
new file mode 100644
index 00000000..96164b50
--- /dev/null
+++ b/src/musredit_qt6/musrWiz/musrWiz.qrc
@@ -0,0 +1,12 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource>
+    <file>icons/musrWiz-22x22.svg</file>
+    <file>icons/musrWiz-22x22-dark.svg</file>
+    <file>icons/musrWiz-32x32.svg</file>
+    <file>icons/musrWiz-32x32-dark.svg</file>
+    <file>musrWiz.xml</file>
+    <file>func_defs/musrfit_funcs.xml</file>
+    <file>instrument_defs/instrument_def_psi.xml</file>
+    <file>instrument_defs/instrument_def_isis.xml</file>
+</qresource>
+</RCC>
diff --git a/src/musredit_qt6/musrWiz/musrWiz.xml b/src/musredit_qt6/musrWiz/musrWiz.xml
new file mode 100644
index 00000000..1d0225c4
--- /dev/null
+++ b/src/musredit_qt6/musrWiz/musrWiz.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<musrwiz>
+  <default_settings>
+    <institute>PSI</institute>
+    <instrument>LEM</instrument>
+    <fit_type>Single Histo</fit_type>
+  </default_settings>  
+</musrwiz>
diff --git a/src/musredit_qt6/musredit/CMakeLists.txt b/src/musredit_qt6/musredit/CMakeLists.txt
new file mode 100644
index 00000000..e3986681
--- /dev/null
+++ b/src/musredit_qt6/musredit/CMakeLists.txt
@@ -0,0 +1,148 @@
+#--- musredit for Qt > 6.0 ----------------------------------------------------
+
+set(qt_libs Qt6::Core Qt6::Widgets Qt6::Network Qt6::Xml Qt6::Svg Qt6::PrintSupport)
+
+set(musredit_src
+  PTextEdit.cpp
+  PSubTextEdit.cpp
+  PAdmin.cpp
+  PFindDialog.cpp
+  PReplaceDialog.cpp
+  PReplaceConfirmationDialog.cpp
+  PFitOutputHandler.cpp
+  PDumpOutputHandler.cpp
+  PPrefsDialog.cpp
+  PGetMusrFTOptionsDialog.cpp
+  PGetTitleBlockDialog.cpp
+  PGetParameterBlockDialog.cpp
+  PGetTheoryBlockDialog.cpp
+  PGetFunctionsBlockDialog.cpp
+  PGetAsymmetryRunBlockDialog.cpp
+  PGetSingleHistoRunBlockDialog.cpp
+  PGetNonMusrRunBlockDialog.cpp
+  PGetFourierBlockDialog.cpp
+  PGetPlotBlockDialog.cpp
+  PMsr2DataDialog.cpp
+  PChangeDefaultPathsDialog.cpp
+  PMusrEditAbout.cpp
+  main.cpp
+)
+
+set(musredit_ui
+  forms/PFindDialog.ui
+  forms/PReplaceDialog.ui
+  forms/PReplaceConfirmationDialog.ui
+  forms/PMusrEditAbout.ui
+  forms/PPrefsDialog.ui
+  forms/PGetMusrFTOptionsDialog.ui
+  forms/PGetTitleBlockDialog.ui
+  forms/PGetParameterBlockDialog.ui
+  forms/PGetTheoryBlockDialog.ui
+  forms/PGetFunctionsBlockDialog.ui
+  forms/PGetAsymmetryRunBlockDialog.ui
+  forms/PGetSingleHistoRunBlockDialog.ui
+  forms/PGetNonMusrRunBlockDialog.ui
+  forms/PGetFourierBlockDialog.ui
+  forms/PGetPlotBlockDialog.ui
+  forms/PMsr2DataDialog.ui
+  forms/PChangeDefaultPathsDialog.ui  
+)
+
+# Instruct CMake to run moc automatically when needed
+set(CMAKE_AUTOMOC ON)
+
+#[==[ 
+# as35 currently CMAKE_AUTOUIC -> ON doesn't work since it requires the ui-files
+#      in the same directory as the cpp-files.
+# Create code from a list of Qt designer ui files
+set(CMAKE_AUTOUIC ON)
+#]==]
+set(CMAKE_AUTOUIC OFF)
+
+# call qt/uic
+qt6_wrap_ui(out_ui ${musredit_ui})
+# add qt/rcc
+qt6_add_resources(musredit_rcc musredit.qrc)
+
+# remove generated files from automoc and autouic
+set_property(SOURCE ui_PFindDialog.h PROPERTY SKIP_AUTOMOC ON)
+set_property(SOURCE ui_PReplaceDialog.h PROPERTY SKIP_AUTOMOC ON)
+set_property(SOURCE ui_PReplaceConfirmationDialog.h PROPERTY SKIP_AUTOMOC ON)
+set_property(SOURCE ui_PMusrEditAbout.h PROPERTY SKIP_AUTOMOC ON)
+set_property(SOURCE ui_PPrefsDialog.h PROPERTY SKIP_AUTOMOC ON)
+set_property(SOURCE ui_PGetMusrFTOptionsDialog.h PROPERTY SKIP_AUTOMOC ON)
+set_property(SOURCE ui_PGetTitleBlockDialog.h PROPERTY SKIP_AUTOMOC ON)
+set_property(SOURCE ui_PGetParameterBlockDialog.h PROPERTY SKIP_AUTOMOC ON)
+set_property(SOURCE ui_PGetTheoryBlockDialog.h PROPERTY SKIP_AUTOMOC ON)
+set_property(SOURCE ui_PGetFunctionsBlockDialog.h PROPERTY SKIP_AUTOMOC ON)
+set_property(SOURCE ui_PGetAsymmetryRunBlockDialog.h PROPERTY SKIP_AUTOMOC ON)
+set_property(SOURCE ui_PGetSingleHistoRunBlockDialog.h PROPERTY SKIP_AUTOMOC ON)
+set_property(SOURCE ui_PGetNonMusrRunBlockDialog.h PROPERTY SKIP_AUTOMOC ON)
+set_property(SOURCE ui_PGetFourierBlockDialog.h PROPERTY SKIP_AUTOMOC ON)
+set_property(SOURCE ui_PGetPlotBlockDialog.h PROPERTY SKIP_AUTOMOC ON)
+set_property(SOURCE ui_PMsr2DataDialog.h PROPERTY SKIP_AUTOMOC ON)
+set_property(SOURCE ui_PChangeDefaultPathsDialog.h PROPERTY SKIP_AUTOMOC ON)
+set_property(SOURCE qrc_musredit.cpp PROPERTY SKIP_AUTOMOC ON)
+
+set(macosx_icon icons/musredit.icns)
+if (APPLE)
+  add_executable(musredit MACOSX_BUNDLE
+    ${musredit_src}
+    ${out_ui}
+    ${musredit_rcc}
+    ${macosx_icon}
+  )
+else (APPLE)
+  add_executable(musredit 
+    ${musredit_src}
+    ${out_ui}
+    ${musredit_rcc}
+  )
+endif (APPLE)
+
+target_include_directories(musredit
+  BEFORE PRIVATE
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/..>
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/../..>
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../../include>
+)
+
+target_link_libraries(musredit ${qt_libs})
+
+#--- installation info --------------------------------------------------------
+if (APPLE)
+  set_target_properties(musredit PROPERTIES
+    MACOSX_BUNDLE TRUE
+    MACOSX_BUNDLE_BUNDLE_NAME "musredit"
+    MACOSX_BUNDLE_INFO_STRING "musrfit: musredit simplifies the handling of the msr-files for uSR fitting."
+    MACOSX_BUNDLE_ICON_FILE "musredit.icns"
+    MACOSX_BUNDLE_LONG_VERSION_STRING "${PROJECT_VERSION}"
+    MACOSX_BUNDLE_GUI_IDENTIFIER "ch.psi.lmu.musredit"
+    MACOSX_BUNDLE_COPYRIGHT "Andreas Suter"
+    RESOURCE ${macosx_icon}
+  )
+endif (APPLE)
+
+if (APPLE)
+  install( TARGETS musredit
+    BUNDLE DESTINATION /Applications
+  )
+else (APPLE)
+  install( TARGETS musredit
+    RUNTIME DESTINATION bin
+  )
+endif (APPLE)
+
+#--- documentation installation info ------------------------------------------
+install(
+  DIRECTORY
+    ${CMAKE_SOURCE_DIR}/doc/examples
+    ${CMAKE_SOURCE_DIR}/doc/html
+    ${CMAKE_SOURCE_DIR}/doc/memos
+  DESTINATION
+    ${CMAKE_INSTALL_PREFIX}/share/doc/musrfit
+  MESSAGE_NEVER
+)
+
diff --git a/src/musredit_qt6/musredit/PAdmin.cpp b/src/musredit_qt6/musredit/PAdmin.cpp
new file mode 100644
index 00000000..9c3093b8
--- /dev/null
+++ b/src/musredit_qt6/musredit/PAdmin.cpp
@@ -0,0 +1,1193 @@
+/****************************************************************************
+
+  PAdmin.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <cstdlib>
+#include <iostream>
+
+#include <QMessageBox>
+#include <QString>
+#include <QStringView>
+#include <QLatin1String>
+#include <QFile>
+#include <QTextStream>
+#include <QVector>
+#include <QDir>
+#include <QProcessEnvironment>
+#include <QSysInfo>
+#include <QIODevice>
+
+#include "musrfit-info.h"
+#include "PAdmin.h"
+
+//--------------------------------------------------------------------------
+// implementation of PAdminXMLParser class
+//--------------------------------------------------------------------------
+/**
+ * <p>XML Parser class for the musredit administration file.
+ *
+ * \param fln file name of the musredit startup xml-file
+ * \param admin pointer to an admin class instance.
+ */
+PAdminXMLParser::PAdminXMLParser(const QString& fln, PAdmin *admin) : fAdmin(admin)
+{
+  fValid = false;
+  fKeyWord = eEmpty;
+  fFunc = false;
+
+  QFile file(fln);
+  if (!file.open(QFile::ReadOnly | QFile::Text)) {
+    // warning and create default - STILL MISSING
+  }
+
+  fValid = parse(&file);
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>parse the musredit startup xml-file.
+ *
+ * \param device QFile object of the musredit startup xml-file
+ *
+ * @return true on success, false otherwise
+ */
+bool PAdminXMLParser::parse(QIODevice *device)
+{
+  fXml.setDevice(device);
+
+  bool expectChars = false;
+  while (!fXml.atEnd()) {
+    fXml.readNext();
+    if (fXml.isStartDocument()) {
+      startDocument();
+    } else if (fXml.isStartElement()) {
+      startElement();
+      expectChars = true;
+    } else if (fXml.isCharacters() && expectChars) {
+      characters();
+    } else if (fXml.isEndElement()) {
+      endElement();
+      expectChars = false;
+    } else if (fXml.isEndDocument()) {
+      endDocument();
+    }
+  }
+  if (fXml.hasError()) {
+    QString msg;
+    msg = QString("%1 Line %2, column %3").arg(fXml.errorString()).arg(fXml.lineNumber()).arg(fXml.columnNumber());
+    QMessageBox::critical(0, "**ERROR**", msg, QMessageBox::Ok, QMessageBox::NoButton);
+    return false;
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Routine called at the beginning of the XML parsing process.
+ */
+bool PAdminXMLParser::startDocument()
+{
+  // nothing to be done here for now
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Routine called when a new XML tag is found. Here it is used
+ * to set a tag for filtering afterwards the content.
+ */
+bool PAdminXMLParser::startElement()
+{
+  QString qName = fXml.name().toString();
+
+  if (qName == "timeout") {
+    fKeyWord = eTimeout;
+  } else if (qName == "font_name") {
+    fKeyWord = eFontName;
+  } else if (qName == "font_size") {
+    fKeyWord = eFontSize;
+  } else if (qName == "exec_path") {
+    fKeyWord = eExecPath;
+  } else if (qName == "default_save_path") {
+    fKeyWord = eDefaultSavePath;
+  } else if (qName == "title_from_data_file") {
+    fKeyWord = eTitleFromDataFile;
+  } else if (qName == "musrview_show_fourier") {
+    fKeyWord = eMusrviewShowFourier;
+  } else if (qName == "musrview_show_avg") {
+    fKeyWord = eMusrviewShowAvg;
+  } else if (qName == "musrview_show_one_to_one") {
+    fKeyWord = eMusrviewShowOneToOne;
+  } else if (qName == "enable_musrt0") {
+    fKeyWord = eEnableMusrT0;
+  } else if (qName == "dark_theme_icons_menu") {
+    fKeyWord = eDarkThemeIconsMenu;
+  } else if (qName == "dark_theme_icons_toolbar") {
+    fKeyWord = eDarkThemeIconsToolbar;
+  } else if (qName =="keep_minuit2_output") {
+    fKeyWord = eKeepMinuit2Output;
+  } else if (qName == "dump_ascii") {
+    fKeyWord = eDumpAscii;
+  } else if (qName =="dump_root") {
+    fKeyWord = eDumpRoot;
+  } else if (qName == "estimate_n0") {
+    fKeyWord = eEstimateN0;
+  } else if (qName == "chisq_per_run_block") {
+    fKeyWord = eChisqPreRunBlock;
+  } else if (qName == "path_file_name") {
+    fKeyWord = eRecentFile;
+  } else if (qName == "beamline") {
+    fKeyWord = eBeamline;
+  } else if (qName == "institute") {
+    fKeyWord = eInstitute;
+  } else if (qName == "file_format") {
+    fKeyWord = eFileFormat;
+  } else if (qName == "lifetime_correction") {
+    fKeyWord = eLifetimeCorrection;
+  } else if (qName == "musr_web_main") {
+    fKeyWord = eHelpMain;
+  } else if (qName == "musr_web_title") {
+    fKeyWord = eHelpTitle;
+  } else if (qName == "musr_web_parameters") {
+    fKeyWord = eHelpParameters;
+  } else if (qName == "musr_web_theory") {
+    fKeyWord = eHelpTheory;
+  } else if (qName == "musr_web_functions") {
+    fKeyWord = eHelpFunctions;
+  } else if (qName == "musr_web_run") {
+    fKeyWord = eHelpRun;
+  } else if (qName == "musr_web_command") {
+    fKeyWord = eHelpCommand;
+  } else if (qName == "musr_web_fourier") {
+    fKeyWord = eHelpFourier;
+  } else if (qName == "musr_web_plot") {
+    fKeyWord = eHelpPlot;
+  } else if (qName == "musr_web_statistic") {
+    fKeyWord = eHelpStatistic;
+  } else if (qName == "musr_web_msr2data") {
+    fKeyWord = eHelpMsr2Data;
+  } else if (qName == "musr_web_musrFT") {
+    fKeyWord = eHelpMusrFT;
+  } else if (qName == "chain_fit") {
+    fKeyWord = eChainFit;
+  } else if (qName == "write_data_header") {
+    fKeyWord = eWriteDataHeader;
+  } else if (qName == "ignore_data_header_info") {
+    fKeyWord = eIgnoreDataHeaderInfo;
+  } else if (qName == "keep_minuit2_output") {
+    fKeyWord = eKeepMinuit2Output;
+  } else if (qName == "write_column_data") {
+    fKeyWord = eWriteColumnData;
+  } else if (qName == "recreate_data_file") {
+    fKeyWord = eRecreateDataFile;
+  } else if (qName == "open_file_after_fitting") {
+    fKeyWord = eOpenFileAfterFitting;
+  } else if (qName == "create_msr_file_only") {
+    fKeyWord = eCreateMsrFileOnly;
+  } else if (qName == "fit_only") {
+    fKeyWord = eFitOnly;
+  } else if (qName == "global") {
+    fKeyWord = eGlobal;
+  } else if (qName == "global_plus") {
+    fKeyWord = eGlobalPlus;
+  } else if (qName == "func_pixmap_path") {
+    fKeyWord = eTheoFuncPixmapPath;
+  } else if (qName == "func") {
+    fKeyWord = eFunc;
+    fFunc = true;
+    // init theory item
+    fTheoryItem.name = "";
+    fTheoryItem.comment = "";
+    fTheoryItem.label = "";
+    fTheoryItem.pixmapName = "";
+    fTheoryItem.pixmap = QPixmap();
+    fTheoryItem.params = -1;
+  } else if (qName == "name") {
+    fKeyWord = eFuncName;
+  } else if (qName == "comment") {
+    fKeyWord = eFuncComment;
+  } else if (qName == "label") {
+    fKeyWord = eFuncLabel;
+  } else if (qName == "pixmap") {
+    fKeyWord = eFuncPixmap;
+  } else if (qName == "params") {
+    fKeyWord = eFuncParams;
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Routine called when the end XML tag is found. It is used to
+ * put the filtering tag to 'empty'. It also resets the fFunc flag in case
+ * the entry was a theory function.
+ */
+bool PAdminXMLParser::endElement()
+{
+  fKeyWord = eEmpty;
+
+  QString qName = fXml.name().toString();
+
+  if (qName == "func") {
+    fFunc = false;
+    fAdmin->addTheoryItem(fTheoryItem);
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>This routine delivers the content of an XML tag. It fills the
+ * content into the load data structure.
+ */
+bool PAdminXMLParser::characters()
+{
+  QString str = fXml.text().toString();
+
+  if (str.isEmpty())
+    return true;
+
+  QString help;
+  bool flag, ok;
+  int  ival;
+
+  switch (fKeyWord) {
+    case eTimeout:
+      ival = QString(str.toLatin1()).trimmed().toInt(&ok);
+      if (ok)
+        fAdmin->setTimeout(ival);
+      break;
+    case eFontName:
+      fAdmin->setFontName(QString(str.toLatin1()).trimmed());
+      break;
+    case eFontSize:
+      ival = QString(str.toLatin1()).trimmed().toInt(&ok);
+      if (ok)
+        fAdmin->setFontSize(ival);
+      break;
+    case eExecPath:
+      fAdmin->setExecPath(QString(str.toLatin1()).trimmed());
+      break;
+    case eDefaultSavePath:      
+      fAdmin->setDefaultSavePath(QString(str.toLatin1()).trimmed());
+      break;
+    case eTitleFromDataFile:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->setTitleFromDataFileFlag(flag);
+      break;
+    case eMusrviewShowFourier:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->setMusrviewShowFourierFlag(flag);
+      break;
+    case eMusrviewShowAvg:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->setMusrviewShowAvgFlag(flag);
+      break;
+    case eMusrviewShowOneToOne:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->setMusrviewShowOneToOneFlag(flag);
+      break;
+    case eEnableMusrT0:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->setEnableMusrT0Flag(flag);
+      break;
+    case eDarkThemeIconsMenu:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->setDarkThemeIconsMenuFlag(flag);
+      break;
+    case eDarkThemeIconsToolbar:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->setDarkThemeIconsToolbarFlag(flag);
+      break;
+    case eKeepMinuit2Output:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->fMsr2DataParam.keepMinuit2Output = flag;
+      fAdmin->setKeepMinuit2OutputFlag(flag);
+      break;
+    case eDumpAscii:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->setDumpAsciiFlag(flag);
+      break;
+    case eDumpRoot:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->setDumpRootFlag(flag);
+      break;
+    case eEstimateN0:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->fMsr2DataParam.estimateN0 = flag;
+      fAdmin->setEstimateN0Flag(flag);
+      break;
+    case eChisqPreRunBlock:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->fMsr2DataParam.perRunBlockChisq = flag;
+      fAdmin->setChisqPerRunBlockFlag(flag);
+      break;
+    case eRecentFile:
+      fAdmin->addRecentFile(QString(str.toLatin1()).trimmed());
+      break;
+    case eBeamline:
+      fAdmin->setBeamline(QString(str.toLatin1()).trimmed());
+      break;
+    case eInstitute:
+      fAdmin->setInstitute(QString(str.toLatin1()).trimmed());
+      break;
+    case eFileFormat:
+      fAdmin->setFileFormat(QString(str.toLatin1()).trimmed());
+      break;
+    case eLifetimeCorrection:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->setLifetimeCorrectionFlag(flag);
+      break;
+    case eHelpMain:
+      fAdmin->setHelpUrl("main", str);
+      break;
+    case eHelpTitle:
+      fAdmin->setHelpUrl("title", str);
+      break;
+    case eHelpParameters:
+      fAdmin->setHelpUrl("parameters", str);
+      break;
+    case eHelpTheory:
+      fAdmin->setHelpUrl("theory", str);
+      break;
+    case eHelpFunctions:
+      fAdmin->setHelpUrl("functions", str);
+      break;
+    case eHelpRun:
+      fAdmin->setHelpUrl("run", str);
+      break;
+    case eHelpCommand:
+      fAdmin->setHelpUrl("command", str);
+      break;
+    case eHelpFourier:
+      fAdmin->setHelpUrl("fourier", str);
+      break;
+    case eHelpPlot:
+      fAdmin->setHelpUrl("plot", str);
+      break;
+    case eHelpStatistic:
+      fAdmin->setHelpUrl("statistic", str);
+      break;
+    case eHelpMsr2Data:
+      fAdmin->setHelpUrl("msr2data", str);
+      break;
+    case eHelpMusrFT:
+      fAdmin->setHelpUrl("musrFT", str);
+      break;
+    case eChainFit:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->fMsr2DataParam.chainFit = flag;
+      break;
+    case eWriteDataHeader:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->fMsr2DataParam.writeDbHeader = flag;
+      break;
+    case eIgnoreDataHeaderInfo:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->fMsr2DataParam.ignoreDataHeaderInfo = flag;
+      break;
+    case eWriteColumnData:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->fMsr2DataParam.writeColumnData = flag;
+      break;
+    case eRecreateDataFile:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->fMsr2DataParam.recreateDbFile = flag;
+      break;
+    case eOpenFileAfterFitting:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->fMsr2DataParam.openFilesAfterFitting = flag;
+      break;
+    case eCreateMsrFileOnly:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->fMsr2DataParam.createMsrFileOnly = flag;
+      break;
+    case eFitOnly:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->fMsr2DataParam.fitOnly = flag;
+      break;
+    case eGlobal:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->fMsr2DataParam.global = flag;
+      break;
+    case eGlobalPlus:
+      if (str == "y")
+        flag = true;
+      else
+        flag = false;
+      fAdmin->fMsr2DataParam.globalPlus = flag;
+      break;
+    case eTheoFuncPixmapPath:
+      fAdmin->setTheoFuncPixmapPath(QString(str.toLatin1()).trimmed());
+      break;
+    default:
+      break;
+  }
+
+  if (fFunc) {
+    bool ok;
+    switch (fKeyWord) {
+      case eFuncName:
+        fTheoryItem.name = QString(str.toLatin1()).trimmed();
+        break;
+      case eFuncComment:
+        fTheoryItem.comment = QString(str.toLatin1()).trimmed();
+        break;
+      case eFuncLabel:
+        fTheoryItem.label = QString(str.toLatin1()).trimmed();
+        break;
+      case eFuncPixmap:
+        fTheoryItem.pixmapName = QString(str.toLatin1()).trimmed();
+        break;
+      case eFuncParams:
+        fTheoryItem.params = str.toInt(&ok);
+        if (!ok)
+          return false;
+        break;
+      default:
+        break;
+    }
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Called at the end of the XML parse process. It checks if default paths
+ * contain system variables, and if so expand them for the further use.
+ */
+bool PAdminXMLParser::endDocument()
+{
+  // check if all necessary items are found
+  QString str;
+
+  if (fAdmin->getExecPath().indexOf('$') >= 0) {
+    str = expandPath(fAdmin->getExecPath());
+    if (!str.isEmpty())
+      fAdmin->setExecPath(str);
+  }
+
+  if (fAdmin->getDefaultSavePath().indexOf('$') >= 0) {
+    str = expandPath(fAdmin->getDefaultSavePath());
+    if (!str.isEmpty())
+      fAdmin->setDefaultSavePath(str);
+ }
+
+  if (fAdmin->getTheoFuncPixmapPath().indexOf('$') >=0) {
+    str = expandPath(fAdmin->getTheoFuncPixmapPath());
+    if (!str.isEmpty())
+      fAdmin->setTheoFuncPixmapPath(str);
+  }
+
+  //as35 dump admin - only for debugging
+  //as35 dump();
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Dumps the content of the admin class. For debugging purposes only.
+ */
+void PAdminXMLParser::dump()
+{
+  std::cout << "debug> +++++++++++++++++++++++" << std::endl;
+  std::cout << "debug> general:" << std::endl;
+  std::cout << "debug> exec_path : " << fAdmin->getExecPath().toLatin1().data() << std::endl;
+  std::cout << "debug> default_save_path : " << fAdmin->getDefaultSavePath().toLatin1().data() << std::endl;
+  std::cout << "debug> timeout : " << fAdmin->getTimeout() << std::endl;
+  std::cout << "debug> keep_minuit2_output : " << fAdmin->getKeepMinuit2OutputFlag() << std::endl;
+  std::cout << "debug> dump_ascii : " << fAdmin->getDumpAsciiFlag() << std::endl;
+  std::cout << "debug> dump_root : " << fAdmin->getDumpRootFlag() << std::endl;
+  std::cout << "debug> title_from_data_file : " << fAdmin->getTitleFromDataFileFlag() << std::endl;
+  std::cout << "debug> chisq_per_run_block : " << fAdmin->getChisqPerRunBlockFlag() << std::endl;
+  std::cout << "debug> estimate_n0 : " << fAdmin->getEstimateN0Flag() << std::endl;
+  std::cout << "debug> musrview_show_fourier : " << fAdmin->getMusrviewShowFourierFlag() << std::endl;
+  std::cout << "debug> musrview_show_avg : " << fAdmin->getMusrviewShowAvgFlag() << std::endl;
+  std::cout << "debug> enable_musrt0 : " << fAdmin->getEnableMusrT0Flag() << std::endl;
+  std::cout << "debug> dark_theme_icons_menu : " << fAdmin->getDarkThemeIconsMenuFlag() << std::endl;
+  std::cout << "debug> dark_theme_icons_toolbar : " << fAdmin->getDarkThemeIconsToolbarFlag() << std::endl;
+  std::cout << "debug> +++++++++++++++++++++++" << std::endl;
+  std::cout << "debug> recent_files:" << std::endl;
+  for (int i=0; i<fAdmin->getNumRecentFiles(); i++) {
+    std::cout << "debug> recent_file " << i << ":" << fAdmin->getRecentFile(i).toLatin1().data() << std::endl;
+  }
+  std::cout << "debug> +++++++++++++++++++++++" << std::endl;
+  std::cout << "debug> help_section:" << std::endl;
+  std::cout << "debug> musr_web_main : " << fAdmin->getHelpUrl("main").toLatin1().data() << std::endl;
+  std::cout << "debug> musr_web_title : " << fAdmin->getHelpUrl("title").toLatin1().data() << std::endl;
+  std::cout << "debug> musr_web_parameters : " << fAdmin->getHelpUrl("parameters").toLatin1().data() << std::endl;
+  std::cout << "debug> musr_web_theory : " << fAdmin->getHelpUrl("theory").toLatin1().data() << std::endl;
+  std::cout << "debug> musr_web_functions : " << fAdmin->getHelpUrl("functions").toLatin1().data() << std::endl;
+  std::cout << "debug> musr_web_run : " << fAdmin->getHelpUrl("run").toLatin1().data() << std::endl;
+  std::cout << "debug> musr_web_command : " << fAdmin->getHelpUrl("command").toLatin1().data() << std::endl;
+  std::cout << "debug> musr_web_fourier : " << fAdmin->getHelpUrl("fourier").toLatin1().data() << std::endl;
+  std::cout << "debug> musr_web_plot : " << fAdmin->getHelpUrl("plot").toLatin1().data() << std::endl;
+  std::cout << "debug> musr_web_statistic : " << fAdmin->getHelpUrl("statistic").toLatin1().data() << std::endl;
+  std::cout << "debug> musr_web_msr2data : " << fAdmin->getHelpUrl("msr2data").toLatin1().data() << std::endl;
+  std::cout << "debug> musr_web_musrFT : " << fAdmin->getHelpUrl("musrFT").toLatin1().data() << std::endl;
+  std::cout << "debug> +++++++++++++++++++++++" << std::endl;
+  std::cout << "debug> font_section:" << std::endl;
+  std::cout << "debug> font_name : " << fAdmin->getFontName().toLatin1().data() << std::endl;
+  std::cout << "debug> font_size : " << fAdmin->getFontSize() << std::endl;
+  std::cout << "debug> +++++++++++++++++++++++" << std::endl;
+  std::cout << "debug> msr_file_defaults:" << std::endl;
+  std::cout << "debug> beamline : " << fAdmin->getBeamline().toLatin1().data() << std::endl;
+  std::cout << "debug> institute : " << fAdmin->getInstitute().toLatin1().data() << std::endl;
+  std::cout << "debug> file_format : " << fAdmin->getFileFormat().toLatin1().data() << std::endl;
+  std::cout << "debug> lifetime_correction : " << fAdmin->getLifetimeCorrectionFlag() << std::endl;
+  std::cout << "debug> +++++++++++++++++++++++" << std::endl;
+  std::cout << "debug> msr2data_defaults:" << std::endl;
+  std::cout << "debug> chain_fit : " << fAdmin->getMsr2DataParam().chainFit << std::endl;
+  std::cout << "debug> write_data_header : " << fAdmin->getMsr2DataParam().writeDbHeader << std::endl;
+  std::cout << "debug> ignore_data_header_info : " << fAdmin->getMsr2DataParam().ignoreDataHeaderInfo << std::endl;
+  std::cout << "debug> keep_minuit2_output : " << fAdmin->getMsr2DataParam().keepMinuit2Output << std::endl;
+  std::cout << "debug> write_column_data : " << fAdmin->getMsr2DataParam().writeColumnData << std::endl;
+  std::cout << "debug> recreate_data_file : " << fAdmin->getMsr2DataParam().recreateDbFile << std::endl;
+  std::cout << "debug> open_file_after_fitting : " << fAdmin->getMsr2DataParam().openFilesAfterFitting << std::endl;
+  std::cout << "debug> create_msr_file_only : " << fAdmin->getMsr2DataParam().createMsrFileOnly << std::endl;
+  std::cout << "debug> fit_only : " << fAdmin->getMsr2DataParam().fitOnly << std::endl;
+  std::cout << "debug> global : " << fAdmin->getMsr2DataParam().global << std::endl;
+  std::cout << "debug> global_plus : " << fAdmin->getMsr2DataParam().globalPlus << std::endl;
+  std::cout << "debug> +++++++++++++++++++++++" << std::endl;
+  std::cout << "debug> theory_functions:" << std::endl;
+  std::cout << "debug> func_pixmap_path : " << fAdmin->getTheoFuncPixmapPath().toLatin1().data() << std::endl;
+  std::cout << "debug> #theory : " << fAdmin->getTheoryCounts() << std::endl;
+  PTheory *theo;
+  for (unsigned int i=0; i<fAdmin->getTheoryCounts(); i++) {
+    theo = fAdmin->getTheoryItem(i);
+    std::cout << "debug> -------" << std::endl;
+    std::cout << "debug> name : " << theo->name.toLatin1().data() << std::endl;
+    std::cout << "debug> comment : " << theo->comment.toLatin1().data() << std::endl;
+    std::cout << "debug> label : " << theo->label.toLatin1().data() << std::endl;
+    std::cout << "debug> pixmapName : " << theo->pixmapName.toLatin1().data() << std::endl;
+    std::cout << "debug> params : " << theo->params << std::endl;
+  }
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Expands system variables to full path, e.g. <tt>$HOME -> \home\user</tt>
+ *
+ * \param str path string with none expanded system variables.
+ */
+QString PAdminXMLParser::expandPath(const QString &str)
+{
+  QString token;
+  QString path;
+  QString msg;
+  QString newStr="";
+
+  QProcessEnvironment procEnv = QProcessEnvironment::systemEnvironment();
+
+  QStringList list = str.split("/");
+
+  for ( QStringList::Iterator it = list.begin(); it != list.end(); ++it ) {
+    token = *it;
+    if (token.contains("$")) {
+      token.remove('$');
+      if (!procEnv.contains(token)) {
+        msg = QString("Couldn't find '%1'. Some things might not work properly").arg(token);
+        QMessageBox::warning(0, "**WARNING**", msg, QMessageBox::Ok, QMessageBox::NoButton);
+        newStr = "";
+        break;
+      }
+      path = procEnv.value(token, "");
+      if (path.isEmpty()) {
+        msg = QString("Couldn't expand '%1'. Some things might not work properly").arg(token);
+        QMessageBox::warning(0, "**WARNING**", msg, QMessageBox::Ok, QMessageBox::NoButton);
+        newStr = "";
+        break;
+      }
+      newStr += path;
+    } else {
+      newStr += "/" + token;
+    }
+  }
+
+  return newStr;
+}
+
+//--------------------------------------------------------------------------
+// implementation of PAdmin class
+//--------------------------------------------------------------------------
+/**
+ * <p>Initializes that PAdmin object, and calls the XML parser which feeds
+ * the object variables.
+ */
+PAdmin::PAdmin() : QObject()
+{
+  fTimeout = 3600;
+
+  fFontName = QString("Courier"); // default font
+  fFontSize = 11; // default font size
+
+  fPrefPathName = QString("");
+  fExecPath = QString("");
+  fDefaultSavePath = QString("");
+  fTheoFuncPixmapPath = QString("");
+
+  fBeamline   = QString("");
+  fInstitute  = QString("");
+  fFileFormat = QString("");
+
+  fMusrviewShowFourier = false;
+  fMusrviewShowAvg = false;
+
+  fTitleFromDataFile  = false;
+  fEnableMusrT0       = false;
+  fLifetimeCorrection = true;
+  fEstimateN0         = true;
+  fChisqPreRunBlock   = false;
+
+  fMsr2DataParam.runList  = QString("");
+  fMsr2DataParam.runListFileName = QString("");
+  fMsr2DataParam.msrFileExtension = QString("");
+  fMsr2DataParam.templateRunNo = -1;
+  fMsr2DataParam.dbOutputFileName = QString("");
+  fMsr2DataParam.writeDbHeader = true;
+  fMsr2DataParam.ignoreDataHeaderInfo = false;
+  fMsr2DataParam.keepMinuit2Output = false;
+  fMsr2DataParam.estimateN0 = fEstimateN0;
+  fMsr2DataParam.writeColumnData = false;
+  fMsr2DataParam.recreateDbFile = false;
+  fMsr2DataParam.chainFit = true;
+  fMsr2DataParam.openFilesAfterFitting = true;
+  fMsr2DataParam.perRunBlockChisq = fChisqPreRunBlock;
+  fMsr2DataParam.titleFromDataFile = true;
+  fMsr2DataParam.createMsrFileOnly = false;
+  fMsr2DataParam.fitOnly = false;
+  fMsr2DataParam.global = false;
+  fMsr2DataParam.globalPlus = false;
+
+  // XML Parser part
+  // 1st: check local directory
+  QString path = QString("./");
+  QString fln = QString("musredit_startup.xml");
+  QString pathFln = path + fln;
+  QProcessEnvironment procEnv = QProcessEnvironment::systemEnvironment();
+  if (!QFile::exists(pathFln)) {
+    // 2nd: check $HOME/.musrfit/musredit/musredit_startup.xml
+    path = procEnv.value("HOME", "");
+    pathFln = path + "/.musrfit/musredit/" + fln;
+    if (!QFile::exists(pathFln)) {
+      // 3rd: check $MUSRFITPATH/musredit_startup.xml
+      path = procEnv.value("MUSRFITPATH", "");
+      pathFln = path + "/" + fln;
+      if (!QFile::exists(pathFln)) {
+        // 4th: check $ROOTSYS/bin/musredit_startup.xml
+        path = procEnv.value("ROOTSYS", "");
+        pathFln = path + "/bin/" + fln;
+        if (!QFile::exists(pathFln)) {
+          // 5th: not found anywhere hence create it
+          path = procEnv.value("HOME", "");
+          pathFln = path + "/.musrfit/musredit/" + fln;
+          createMusreditStartupFile();
+        }
+      }
+    }
+  }
+  fPrefPathName = pathFln;
+
+  loadPrefs(fPrefPathName);
+
+  // make sure that musrfit, musrview, etc are found under the fExecPath provided
+  QString str = fExecPath + "/musrfit";
+  QFileInfo info(str);
+  if (info.exists()) {
+    if (!info.isExecutable())
+      QMessageBox::critical(0, "ERROR", "musrfit found but not recognized as executable.\nPlease check!");
+  } else {
+    QMessageBox::critical(0, "ERROR", "musrfit not found.\nHave you set the necessary system variables properly?\nPlease check the manual.\nBefore you can use musrfit, this needs to be fixed.");
+  }
+
+  // check if system variables are set properly
+  bool sysVarMissing = false;
+  QString msg("Missing System Variables:\n");
+  path = procEnv.value("ROOTSYS", "");
+  if (path.isEmpty()) {
+    msg += "> ROOTSYS\n";
+    sysVarMissing = true;
+  }
+  path = procEnv.value("MUSRFITPATH", "");
+  if (path.isEmpty()) {
+    msg += "> MUSRFITPATH\n";
+    sysVarMissing = true;
+  }
+  if (sysVarMissing) {
+    msg += "Please set this/these system variables.";
+    QMessageBox::warning(0, "WARNING", msg);
+  }
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Destructor
+ */
+PAdmin::~PAdmin()
+{
+  saveRecentFiles();
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>returns the help url corresponding the the tag.
+ *
+ * \param tag to map the help url. At the moment the following tags should be present:
+ * main, title, parameters, theory, functions, run, command, fourier, plot, statistic
+ */
+QString PAdmin::getHelpUrl(QString tag)
+{
+  return fHelpUrl[tag];
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>returns a theory item from position idx. If idx is out of the range, a null pointer is returned.
+ *
+ * \param idx position of the theory item.
+ */
+PTheory* PAdmin::getTheoryItem(const unsigned int idx)
+{
+  if (idx > (unsigned int)fTheory.size())
+    return 0;
+  else
+    return &fTheory[idx];
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>returns the recent path-file name at position idx. If idx is out of scope,
+ * an empty string is returned.
+ *
+ * \param idx index of the recent path-file name to be retrieved.
+ */
+QString PAdmin::getRecentFile(int idx)
+{
+  if (idx >= fRecentFile.size())
+    return QString("");
+
+  return fRecentFile[idx];
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>set the help url, addressed via a tag. At the moment the following tags should be present:
+ * main, title, parameters, theory, functions, run, command, fourier, plot, statistic, msr2data
+ *
+ * \param tag to address the help url
+ * \param url help url corresponding to the tag.
+ */
+void PAdmin::setHelpUrl(const QString tag, const QString url)
+{
+  fHelpUrl[tag] = url;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Loads the preference file fln.
+ *
+ * <b>return:</b> 1 on success, 0 otherwise
+ *
+ * \param fln path-file name of the preference file to be loaded.
+ */
+int PAdmin::loadPrefs(QString fln)
+{
+  if (QFile::exists(fln)) { // administration file present
+    PAdminXMLParser handler(fln, this);
+    if (!handler.isValid()) {
+      QMessageBox::critical(0, "**ERROR**",
+                            "Error parsing musredit_startup.xml settings file.\nProbably a few things will not work porperly.\nPlease fix this first.",
+                            QMessageBox::Ok, QMessageBox::NoButton);
+      return 0;
+    }
+  } else {
+    QMessageBox::critical(0, "**ERROR**",
+                          "Couldn't find the musredit_startup.xml settings file.\nProbably a few things will not work porperly.\nPlease fix this first.",
+                          QMessageBox::Ok, QMessageBox::NoButton);
+    return 0;
+  }
+  return 1;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Save the preference file pref_fln.
+ *
+ * <b>return:</b> 1 on success, 0 otherwise
+ *
+ * \param pref_fln preference path-file name
+ */
+int PAdmin::savePrefs(QString pref_fln)
+{
+  // check if musredit_startup.xml is present in the current directory, and if yes, use this file to
+  // save the recent file names otherwise use the "master" musredit_startup.xml
+  QString fln = QString("./musredit_startup.xml");
+  if (!QFile::exists(fln))
+    fln = fPrefPathName;
+
+  if (QFile::exists(fln)) { // administration file present
+    QVector<QString> data;
+    QFile file(fln);
+    if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+      std::cerr << std::endl << ">> PAdmin::savePrefs: **ERROR** Cannot open " << fln.toLatin1().data() << " for reading." << std::endl;
+      return 1;
+    }
+    QTextStream fin(&file);
+    while (!fin.atEnd()) {
+      data.push_back(fin.readLine());
+    }
+    file.close();
+
+    // replace all the prefs
+    for (int i=0; i<data.size(); i++) {
+      if (data[i].contains("<timeout>") && data[i].contains("</timeout>")) {
+        data[i] = "    <timeout>" + QString("%1").arg(fTimeout) + "</timeout>";
+      }
+      if (data[i].contains("<keep_minuit2_output>") && data[i].contains("</keep_minuit2_output>")) {
+        if (fKeepMinuit2Output)
+          data[i] = "    <keep_minuit2_output>y</keep_minuit2_output>";
+        else
+          data[i] = "    <keep_minuit2_output>n</keep_minuit2_output>";
+      }
+      if (data[i].contains("<dump_ascii>") && data[i].contains("</dump_ascii>")) {
+        if (fDumpAscii)
+          data[i] = "    <dump_ascii>y</dump_ascii>";
+        else
+          data[i] = "    <dump_ascii>n</dump_ascii>";
+      }
+      if (data[i].contains("<dump_root>") && data[i].contains("</dump_root>")) {
+        if (fDumpRoot)
+          data[i] = "    <dump_root>y</dump_root>";
+        else
+          data[i] = "    <dump_root>n</dump_root>";
+      }
+      if (data[i].contains("<title_from_data_file>") && data[i].contains("</title_from_data_file>")) {
+        if (fTitleFromDataFile)
+          data[i] = "    <title_from_data_file>y</title_from_data_file>";
+        else
+          data[i] = "    <title_from_data_file>n</title_from_data_file>";
+      }
+      if (data[i].contains("<chisq_per_run_block>") && data[i].contains("</chisq_per_run_block>")) {
+        if (fChisqPreRunBlock)
+          data[i] = "    <chisq_per_run_block>y</chisq_per_run_block>";
+        else
+          data[i] = "    <chisq_per_run_block>n</chisq_per_run_block>";
+      }
+      if (data[i].contains("<estimate_n0>") && data[i].contains("</estimate_n0>")) {
+        if (fEstimateN0)
+          data[i] = "    <estimate_n0>y</estimate_n0>";
+        else
+          data[i] = "    <estimate_n0>n</estimate_n0>";
+      }
+      if (data[i].contains("<musrview_show_fourier>") && data[i].contains("</musrview_show_fourier>")) {
+        if (fMusrviewShowFourier)
+          data[i] = "    <musrview_show_fourier>y</musrview_show_fourier>";
+        else
+          data[i] = "    <musrview_show_fourier>n</musrview_show_fourier>";
+      }
+      if (data[i].contains("<musrview_show_avg>") && data[i].contains("</musrview_show_avg>")) {
+        if (fMusrviewShowAvg)
+          data[i] = "    <musrview_show_avg>y</musrview_show_avg>";
+        else
+          data[i] = "    <musrview_show_avg>n</musrview_show_avg>";
+      }
+      if (data[i].contains("<enable_musrt0>") && data[i].contains("</enable_musrt0>")) {
+        if (fEnableMusrT0)
+          data[i] = "    <enable_musrt0>y</enable_musrt0>";
+        else
+          data[i] = "    <enable_musrt0>n</enable_musrt0>";
+      }
+      if (data[i].contains("<dark_theme_icons_menu>") && data[i].contains("</dark_theme_icons_menu>")) {
+        if (fDarkThemeIconsMenu)
+          data[i] = "     <dark_theme_icons_menu>y</dark_theme_icons_menu>";
+        else
+          data[i] = "     <dark_theme_icons_menu>n</dark_theme_icons_menu>";
+      }
+      if (data[i].contains("<dark_theme_icons_toolbar>") && data[i].contains("</dark_theme_icons_toolbar>")) {
+        if (fDarkThemeIconsToolbar)
+          data[i] = "     <dark_theme_icons_toolbar>y</dark_theme_icons_toolbar>";
+        else
+          data[i] = "     <dark_theme_icons_toolbar>n</dark_theme_icons_toolbar>";
+      }
+      if (data[i].contains("<font_name>") && data[i].contains("</font_name>")) {
+        data[i] = QString("    <font_name>%1</font_name>").arg(fFontName);
+      }
+      if (data[i].contains("<font_size>") && data[i].contains("</font_size>")) {
+        data[i] = QString("    <font_size>%1</font_size>").arg(fFontSize);
+      }
+    }
+
+    // write prefs
+    file.setFileName(pref_fln);
+    if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
+      std::cerr << std::endl << ">> PAdmin::savePrefs: **ERROR** Cannot open " << pref_fln.toLatin1().data() << " for writing." << std::endl;
+      return 0;
+    }
+    fin.setDevice(&file);
+    for (int i=0; i<data.size(); i++) {
+      fin << data[i] << Qt::endl;
+    }
+    file.close();
+  } else {
+    QString msg("Failed to write musredit_startup.xml. Neither a local nor a global copy found.");
+    QMessageBox::warning(0, "WARNING", msg, QMessageBox::Ok, QMessageBox::NoButton);
+  }
+
+  return 1;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Add recent path-file name to the internal ring-buffer.
+ *
+ * \param str recent path-file name to be added
+ */
+void PAdmin::addRecentFile(const QString str)
+{
+  // check if file name is not already present
+  for (int i=0; i<fRecentFile.size(); i++) {
+    if (str == fRecentFile[i])
+      return;
+  }
+
+  fRecentFile.push_front(str);
+  if (fRecentFile.size() > MAX_RECENT_FILES)
+    fRecentFile.resize(MAX_RECENT_FILES);
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Merges the recent file ring buffer into musredit_startup.xml and saves it.
+ * If a local copy is present it will be saved there, otherwise the master file
+ * will be used.
+ */
+void PAdmin::saveRecentFiles()
+{
+  // check if musredit_startup.xml is present in the current directory, and if yes, use this file to
+  // save the recent file names otherwise use the "master" musredit_startup.xml
+
+  QString str("");
+  QString fln = QString("./musredit_startup.xml");
+  if (!QFile::exists(fln))
+    fln = fPrefPathName;
+
+  if (QFile::exists(fln)) { // administration file present
+    QVector<QString> data;
+    QFile file(fln);
+    if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+      std::cerr << std::endl << ">> PAdmin::saveRecentFile: **ERROR** Cannot open " << fln.toLatin1().data() << " for reading." << std::endl;
+      return;
+    }
+    QTextStream fin(&file);
+    while (!fin.atEnd()) {
+      data.push_back(fin.readLine());
+    }
+    file.close();
+
+    // remove <path_file_name> from data
+    for (QVector<QString>::iterator it = data.begin(); it != data.end(); ++it) {
+      if (it->contains("<path_file_name>")) {
+        it = data.erase(it);
+        --it;
+      }
+    }
+
+    // add recent files
+    int i;
+    for (i=0; i<data.size(); i++) {
+      if (data[i].contains("<recent_files>"))
+        break;
+    }
+
+    if (i == data.size()) {
+      std::cerr << std::endl << ">> PAdmin::saveRecentFile: **ERROR** " << fln.toLatin1().data() << " seems to be corrupt." << std::endl;
+      return;
+    }
+    i++;
+    for (int j=0; j<fRecentFile.size(); j++) {
+      str = "    <path_file_name>" + fRecentFile[j] + "</path_file_name>";
+      data.insert(i++, str);
+    }
+
+    if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
+      std::cerr << std::endl << ">> PAdmin::saveRecentFile: **ERROR** Cannot open " << fln.toLatin1().data() << " for reading." << std::endl;
+      return;
+    }
+    fin.setDevice(&file);
+    for (int i=0; i<data.size(); i++) {
+      fin << data[i] << Qt::endl;
+    }
+    file.close();
+  } else {
+    QString msg("Failed to write musredit_startup.xml. Neither a local nor a global copy found.");
+    QMessageBox::warning(0, "WARNING", msg, QMessageBox::Ok, QMessageBox::NoButton);
+  }
+}
+
+//--------------------------------------------------------------------------
+/**
+ * @brief PAdmin::createMusreditStartupFile
+ */
+void PAdmin::createMusreditStartupFile()
+{
+  // get $HOME
+  QProcessEnvironment procEnv = QProcessEnvironment::systemEnvironment();
+  QString pathName = procEnv.value("HOME", "");
+  pathName += "/.musrfit/musredit";
+
+  // check if the directory $HOME/.musrfit/musredit exists if not create it
+  QDir dir(pathName);
+  if (!dir.exists()) {
+    // directory $HOME/.musrfit/musredit does not exist hence create it
+    dir.mkpath(pathName);
+  }
+
+  // create default musredit_startup.xml file in $HOME/.musrfit/musredit
+  pathName += "/musredit_startup.xml";
+
+  // get the default musredit_startup.xml.in from the internal resources
+  QFile fres(":/musredit_startup.xml.in");
+  if (!fres.exists()) {
+    QString msg = QString("Neither couldn't find nor create musredit_startup.xml. Things are likely not to work.");
+    QMessageBox::critical(0, "ERROR", msg);
+    return;
+  }
+
+  if (!fres.open(QIODevice::ReadOnly | QIODevice::Text)) {
+    QString msg = QString("Couldn't open internal resource file musredit_startup.xml.in. Things are likely not to work.");
+    QMessageBox::critical(0, "ERROR", msg);
+    return;
+  }
+  // text stream for fres
+  QTextStream fin(&fres);
+
+  // musredit_startup.xml default file
+  QFile file(pathName);
+
+  if (!file.open(QIODevice::WriteOnly | QIODevice::Text))
+    return;
+
+  // text stream for file
+  QTextStream fout(&file);
+
+  QString line;
+  while (!fin.atEnd()) {
+    line = fin.readLine();
+    line.replace("@prefix@", MUSRFIT_PREFIX);
+    line.replace("@DOCDIR@", MUSRFIT_DOC_DIR);
+    if (line.contains("<font_name>")) { // defaults: linux: Monospace, macOS: Courier New
+      if (QSysInfo::productType().contains("osx")) {
+        line.replace("Monospace", "Courier New");
+      }
+    }
+    if (line.contains("<font_size>")) { // defaults: linux: 12, macOS: 16
+      if (QSysInfo::productType().contains("osx")) {
+        line.replace("12", "16");
+      }
+    }
+    fout << line << Qt::endl;
+  }
+
+  file.close();
+  fres.close();
+}
+
+//--------------------------------------------------------------------------
+// END
+//--------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PAdmin.h b/src/musredit_qt6/musredit/PAdmin.h
new file mode 100644
index 00000000..9c95f7d9
--- /dev/null
+++ b/src/musredit_qt6/musredit/PAdmin.h
@@ -0,0 +1,223 @@
+/****************************************************************************
+
+  PAdmin.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PADMIN_H_
+#define _PADMIN_H_
+
+#include <QString>
+#include <QVector>
+#include <QMap>
+#include <QPixmap>
+#include <QXmlStreamReader>
+
+#include <musredit.h>
+
+class PAdmin;
+
+//---------------------------------------------------------------------------
+/**
+ * <p>This structure is keeping informations necessary to handle musrfit
+ * theory functions (see also <code>http://lmu.web.psi.ch/musrfit/user/html/user-manual.html#the-theory-block</code>).
+ */
+typedef struct {
+  QString name;
+  QString comment;
+  QString label;
+  QString pixmapName;
+  QPixmap pixmap;
+  int     params;
+} PTheory;
+
+//---------------------------------------------------------------------------
+/**
+ * PAdminXMLParser is an XML parser class used to handle the musredit startup
+ * XML-file called <tt>musredit_startup.xml</tt>. This startup file contains
+ * necessary informations about executable pathes, online help informations,
+ * default font sizes, etc.
+ */
+class PAdminXMLParser
+{
+  public:
+    PAdminXMLParser(const QString &fln, PAdmin*);
+    virtual ~PAdminXMLParser() {}
+
+    virtual bool isValid() { return fValid; }
+
+  private:
+    enum EAdminKeyWords {eEmpty, eTimeout, eKeepMinuit2Output, eDumpAscii, eDumpRoot,
+                         eTitleFromDataFile, eChisqPreRunBlock, eEstimateN0,
+                         eMusrviewShowFourier, eMusrviewShowAvg, eMusrviewShowOneToOne, eEnableMusrT0,
+                         eDarkThemeIconsMenu, eDarkThemeIconsToolbar,
+                         eFontName, eFontSize, eExecPath, eDefaultSavePath,
+                         eRecentFile, eBeamline, eInstitute, eFileFormat, eLifetimeCorrection,
+                         eTheoFuncPixmapPath, eFunc, eFuncName, eFuncComment, eFuncLabel,
+                         eFuncPixmap, eFuncParams, eHelpMain, eHelpTitle, eHelpParameters, eHelpTheory, eHelpFunctions,
+                         eHelpRun, eHelpCommand, eHelpFourier, eHelpPlot, eHelpStatistic, eHelpMsr2Data, eHelpMusrFT,
+                         eChainFit, eWriteDataHeader, eIgnoreDataHeaderInfo, eWriteColumnData,
+                         eRecreateDataFile, eOpenFileAfterFitting, eCreateMsrFileOnly, eFitOnly, eGlobal, eGlobalPlus};
+
+    bool parse(QIODevice *device);
+    bool startDocument();
+    bool startElement();
+    bool endElement();
+    bool characters();
+    bool endDocument();
+
+    void dump();
+
+    QString expandPath(const QString&);
+
+    QXmlStreamReader fXml;        ///< xml stream reader object
+    bool             fValid;      ///< flag showing if XML read has been successful
+    EAdminKeyWords   fKeyWord;    ///< key word tag to know how to handle the content
+    bool             fFunc;       ///< flag needed to indicate that a new theory function is found
+    PTheory          fTheoryItem; ///< holding the informations necessary for a theory item
+    PAdmin           *fAdmin;     ///< a pointer to the main administration class object
+};
+
+//---------------------------------------------------------------------------
+/**
+ * The PAdmin class is handling the informations contained in the XML startup file,
+ * <tt>musredit_startup.xml</tt>. This startup file contains
+ * necessary informations about executable pathes, online help informations,
+ * default font sizes, etc. The XML parsing is done with the help of the PAdminXMLParser
+ * class.
+ */
+class PAdmin : public QObject
+{
+  public:
+    PAdmin();
+    virtual ~PAdmin();
+
+    int     getTimeout() { return fTimeout; }
+    QString getFontName() { return fFontName; }
+    int     getFontSize() { return fFontSize; }
+    QString getExecPath() { return fExecPath; }
+    QString getDefaultSavePath() { return fDefaultSavePath; }
+    bool    getTitleFromDataFileFlag() { return fTitleFromDataFile; }
+    bool    getMusrviewShowFourierFlag() { return fMusrviewShowFourier; }
+    bool    getMusrviewShowAvgFlag() { return fMusrviewShowAvg; }
+    bool    getMusrviewShowOneToOneFlag() { return fMusrviewShowOneToOne; }
+    bool    getEnableMusrT0Flag() { return fEnableMusrT0; }
+    bool    getKeepMinuit2OutputFlag() { return fKeepMinuit2Output; }
+    bool    getDumpAsciiFlag() { return fDumpAscii; }
+    bool    getDumpRootFlag() { return fDumpRoot; }
+    bool    getEstimateN0Flag() { return fEstimateN0; }
+    bool    getChisqPerRunBlockFlag() { return fChisqPreRunBlock; }
+    bool    getDarkThemeIconsMenuFlag() { return fDarkThemeIconsMenu; }
+    bool    getDarkThemeIconsToolbarFlag() { return fDarkThemeIconsToolbar; }
+    QString getBeamline() { return fBeamline; }
+    QString getInstitute() { return fInstitute; }
+    QString getFileFormat() { return fFileFormat; }
+    bool    getLifetimeCorrectionFlag() { return fLifetimeCorrection; }
+    QString getHelpUrl(QString tag);
+    QString getTheoFuncPixmapPath() { return fTheoFuncPixmapPath; }
+    unsigned int getTheoryCounts() { return fTheory.size(); }
+    PTheory* getTheoryItem(const unsigned int idx);
+    PMsr2DataParam getMsr2DataParam() { return fMsr2DataParam; }
+    int     getNumRecentFiles() { return fRecentFile.size(); }
+    QString getDefaultPrefPathName() { return fPrefPathName; }
+    QString getRecentFile(int idx);
+
+    void setTimeout(const int ival) { fTimeout = ival; }
+    void setTitleFromDataFileFlag(const bool flag) { fTitleFromDataFile = flag; }
+    void setMusrviewShowFourierFlag(const bool flag) { fMusrviewShowFourier = flag; }
+    void setMusrviewShowAvgFlag(const bool flag) { fMusrviewShowAvg = flag; }
+    void setMusrviewShowOneToOneFlag(const bool flag) { fMusrviewShowOneToOne = flag; }
+    void setEnableMusrT0Flag(const bool flag) { fEnableMusrT0 = flag; }
+    void setKeepMinuit2OutputFlag(const bool flag) { fKeepMinuit2Output = flag; }
+    void setDumpAsciiFlag(const bool flag) { fDumpAscii = flag; }
+    void setDumpRootFlag(const bool flag) { fDumpRoot = flag; }
+    void setEstimateN0Flag(const bool flag) { fEstimateN0 = flag; }
+    void setChisqPerRunBlockFlag(const bool flag) { fChisqPreRunBlock = flag; }
+    void setDarkThemeIconsMenuFlag(const bool flag) { fDarkThemeIconsMenu = flag; }
+    void setDarkThemeIconsToolbarFlag(const bool flag) { fDarkThemeIconsToolbar = flag; }
+
+    void setFontName(const QString str) { fFontName = str; }
+    void setFontSize(const int ival) { fFontSize = ival; }
+    void addRecentFile(const QString str);
+
+    int loadPrefs(QString fln);
+    int savePrefs(QString pref_fln);
+
+  protected:
+    void setExecPath(const QString str) { fExecPath = str; }
+    void setDefaultSavePath(const QString str) { fDefaultSavePath = str; }
+    void setBeamline(const QString str) { fBeamline = str; }
+    void setInstitute(const QString str) { fInstitute = str; }
+    void setFileFormat(const QString str) { fFileFormat = str; }
+    void setLifetimeCorrectionFlag(const bool flag) { fLifetimeCorrection = flag; }
+    void setHelpUrl(const QString tag, const QString url);
+    void setTheoFuncPixmapPath (const QString str) { fTheoFuncPixmapPath = str; }
+    void addTheoryItem(const PTheory theo) { fTheory.push_back(theo); }
+
+  private:
+    friend class PAdminXMLParser;
+
+    int fTimeout;       ///< timeout in seconds
+
+    QString fFontName;  ///< default font name
+    int fFontSize;      ///< default font size
+
+    QString fPrefPathName;       ///< path-name of the musredit_startup.xml
+    QString fExecPath;           ///< system path to the musrfit executables
+    QString fDefaultSavePath;    ///< default path where the msr-file should be saved
+    QString fTheoFuncPixmapPath; ///< path where the default pixmaps can be found
+
+    QVector<QString> fRecentFile; ///< keep vector of recent path-file names
+
+    bool fMusrviewShowFourier;  ///< flag indicating if musrview should show at startup data (=false) or Fourier of data (=true).
+    bool fMusrviewShowAvg;      ///< flag indicating if musrview should show at startup averaged (=true) or original (=false) data/Fourier.
+    bool fMusrviewShowOneToOne; ///< flag indicating if theory points are calculate only at the data points (=true) or a higher density theory points is calculated
+    bool fKeepMinuit2Output;    ///< flag indicating if the Minuit2 output shall be kept (default: no)
+    bool fDumpAscii;            ///< flag indicating if musrfit shall make an ascii-dump file (for debugging purposes, default: no).
+    bool fDumpRoot;             ///< flag indicating if musrfit shall make an root-dump file (for debugging purposes, default: no).
+    bool fTitleFromDataFile;    ///< flag indicating if the title should be extracted from the data file (default: yes).
+    bool fChisqPreRunBlock;     ///< flag indicating if musrfit shall write 'per run block' chisq to the msr-file (default: no).
+    bool fEstimateN0;           ///< flag indicating if musrfit shall estimate N0 for single histogram fits (default: yes).
+    bool fEnableMusrT0;         ///< flag indicating if musrT0 shall be enabled at startup from within musredit (default: yes).
+    bool fDarkThemeIconsMenu;   ///< flag indicating if dark theme icons shall be used in the menu (default: no)
+    bool fDarkThemeIconsToolbar; ///< flag indicating if dark theme icons shall be used in the toolbar (default: no)
+
+    QString fBeamline;   ///< name of the beamline. Used to generate default run header lines.
+    QString fInstitute;  ///< name of the institute. Used to generate default run header lines.
+    QString fFileFormat; ///< default file format. Used to generate default run header lines.
+    bool fLifetimeCorrection; ///< flag indicating if by default the lifetime-correction-flag in a single histo file shall be set.
+
+    mutable PMsr2DataParam fMsr2DataParam; ///< keeps msr2data default parameter flags
+
+    QMap<QString, QString> fHelpUrl; ///< maps tag to help url
+
+    QVector<PTheory> fTheory; ///< stores all known theories. Needed when generating theory blocks from within musredit.
+
+    void saveRecentFiles(); ///< save recent file list
+    void createMusreditStartupFile(); ///< create default musredit_startup.xml
+};
+
+#endif // _PADMIN_H_
diff --git a/src/musredit_qt6/musredit/PChangeDefaultPathsDialog.cpp b/src/musredit_qt6/musredit/PChangeDefaultPathsDialog.cpp
new file mode 100644
index 00000000..0ab70a12
--- /dev/null
+++ b/src/musredit_qt6/musredit/PChangeDefaultPathsDialog.cpp
@@ -0,0 +1,339 @@
+/****************************************************************************
+
+  PChangeDefaultPathsDialog.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2021 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QString>
+#include <QStringView>
+#include <QMessageBox>
+#include <QFileDialog>
+#include <QListWidgetItem>
+#include <QIODevice>
+#include <QFile>
+#include <QProcessEnvironment>
+#include <QTextStream>
+
+#include "PChangeDefaultPathsDialog.h"
+
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ * <p>XML Parser class for the musrfit administration file.
+ *
+ * \param fln file name of the musredit startup xml-file
+ * @param defaultPaths
+ */
+PDefaultPathsXMLParser::PDefaultPathsXMLParser(const QString& fln, PDefaultPaths *defaultPaths) :
+  fDefaultPaths(defaultPaths)
+{
+  fValid = false;
+  fKeyWord = eEmpty;
+
+  QFile file(fln);
+  if (!file.open(QFile::ReadOnly | QFile::Text)) {
+    // warning and create default - STILL MISSING
+  }
+
+  fValid = parse(&file);
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>parse the musrfit startup xml-file.
+ *
+ * \param device QFile object of the musrfit startup xml-file
+ *
+ * @return true on success, false otherwise
+ */
+bool PDefaultPathsXMLParser::parse(QIODevice *device)
+{
+  fXml.setDevice(device);
+
+  bool expectChars = false;
+  while (!fXml.atEnd()) {
+    fXml.readNext();
+    if (fXml.isStartDocument()) {
+      startDocument();
+    } else if (fXml.isStartElement()) {
+      startElement();
+      expectChars = true;
+    } else if (fXml.isCharacters() && expectChars) {
+      characters();
+    } else if (fXml.isEndElement()) {
+      endElement();
+      expectChars = false;
+    } else if (fXml.isEndDocument()) {
+      endDocument();
+    }
+  }
+  if (fXml.hasError()) {
+    QString msg;
+    msg = QString("%1 Line %2, column %3").arg(fXml.errorString()).arg(fXml.lineNumber()).arg(fXml.columnNumber());
+    QMessageBox::critical(0, "**ERROR**", msg, QMessageBox::Ok, QMessageBox::NoButton);
+    return false;
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Routine called at the beginning of the XML parsing process.
+ */
+bool PDefaultPathsXMLParser::startDocument()
+{
+  // nothing to be done here for now
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Routine called when a new XML tag is found. Here it is used
+ * to set a tag for filtering afterwards the content.
+ */
+bool PDefaultPathsXMLParser::startElement()
+{
+  QString qName = fXml.name().toString();
+
+  if (qName == "data_path") {
+    fKeyWord = eDataPath;
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Routine called when the end XML tag is found. It is used to
+ * put the filtering tag to 'empty'.
+ */
+bool PDefaultPathsXMLParser::endElement()
+{
+  fKeyWord = eEmpty;
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>This routine delivers the content of an XML tag. It fills the
+ * content into the load data structure.
+ */
+bool PDefaultPathsXMLParser::characters()
+{
+  QString str = fXml.text().toString();
+  if (str.isEmpty())
+    return true;
+
+  switch (fKeyWord) {
+    case eDataPath:
+      fDefaultPaths->appendDefaultPath(str);
+      break;
+    default:
+      break;
+  }
+
+  return true;
+}
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Called at the end of the XML parse process. It checks if default paths
+ * contain system variables, and if so expand them for the further use.
+ */
+bool PDefaultPathsXMLParser::endDocument()
+{
+  return true;
+}
+
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ * @brief PDefaultPaths::PDefaultPaths
+ */
+PDefaultPaths::PDefaultPaths() : QObject()
+{
+  fValid = true;
+
+  // XML Parser part
+  // 1st: check local directory
+  QString path = QString("./");
+  QString fln = QString("musrfit_startup.xml");
+  QString pathFln = path + fln;
+  QProcessEnvironment procEnv = QProcessEnvironment::systemEnvironment();
+  if (!QFile::exists(pathFln)) {
+    // 2nd: check $HOME/.musrfit/musrfit_startup.xml
+    path = procEnv.value("HOME", "");
+    pathFln = path + "/.musrfit/" + fln;
+    if (!QFile::exists(pathFln)) {
+      // 3rd: check $MUSRFITPATH/musrfit_startup.xml
+      path = procEnv.value("MUSRFITPATH", "");
+      pathFln = path + "/" + fln;
+      if (!QFile::exists(pathFln)) {
+        // 4th: check $ROOTSYS/bin/musrfit_startup.xml
+        path = procEnv.value("ROOTSYS", "");
+        pathFln = path + "/bin/" + fln;
+      }
+    }
+  }
+  fPrefPathName = pathFln;
+
+  // read musrfit_startup.xml and extract default data file search paths
+  PDefaultPathsXMLParser handler(fPrefPathName, this);
+  if (!handler.isValid()) {
+    fValid = false;
+    QMessageBox::critical(0, "ERROR",
+                          "Error parsing musrfit_startup.xml settings file.\nProbably a few things will not work porperly.\nPlease fix this first.",
+                          QMessageBox::Ok, QMessageBox::NoButton);
+    return;
+  }
+}
+
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+/**
+ * <p>Constructor.
+ *
+ * \param fAdmin keeps all the needed flags
+ */
+PChangeDefaultPathsDialog::PChangeDefaultPathsDialog()
+{
+  fDefaultPath = 0;
+  fDefaultPath = new PDefaultPaths();
+  if (!fDefaultPath->isValid())
+    return;
+
+  QStringList *strList = fDefaultPath->getDefaultPathList();
+  if (strList == 0)
+    return;
+
+  setupUi(this);
+
+  setModal(true);
+
+  // populate default search paths
+  for (int i=0; i<strList->count(); i++) {
+    fSearchPath_listWidget->addItem(strList->at(i));
+  }
+
+  QObject::connect(fDelete_pushButton, SIGNAL(clicked()), this, SLOT(deleteItem()));
+  QObject::connect(fAdd_pushButton, SIGNAL(clicked()), this, SLOT(addItem()));
+  QObject::connect(buttonBox, SIGNAL(accepted()), this, SLOT(saveDefaultPathList()));
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * @brief PChangeDefaultPathsDialog::addItem
+ */
+void PChangeDefaultPathsDialog::addItem()
+{
+  // call QFileDialog in order to get the proper directory
+  QString dirName = QFileDialog::getExistingDirectory(this, tr("Data File Directory"), "",
+                                             QFileDialog::ShowDirsOnly | QFileDialog::DontResolveSymlinks);
+  if (dirName == "")
+    return;
+
+  // insert the new directory in fSearchPath_listWidget
+  QListWidgetItem *item = new QListWidgetItem;
+  if (item == 0) {
+    QMessageBox::critical(this, "ERROR", "Couldn't invoke QListWidgetItem! Won't do anything.");
+    return;
+  }
+  item->setText(dirName);
+  fSearchPath_listWidget->insertItem(fSearchPath_listWidget->currentRow()+1, item);
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * @brief PChangeDefaultPathsDialog::deleteItem
+ */
+void PChangeDefaultPathsDialog::deleteItem()
+{
+  QListWidgetItem *item = fSearchPath_listWidget->takeItem(fSearchPath_listWidget->currentRow());
+  if (item != 0)
+    delete item;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * @brief PChangeDefaultPathsDialog::saveDefaultPathList
+ */
+void PChangeDefaultPathsDialog::saveDefaultPathList()
+{
+  // read the used musrfit_startup.xml
+  QFile fileIn(fDefaultPath->getPrefPathName());
+  if (!fileIn.open(QIODevice::ReadOnly | QIODevice::Text)) {
+    QMessageBox::critical(this, "ERROR", QString("Cannot read '%1'. Won't do anything.").arg(fDefaultPath->getPrefPathName()));
+    return;
+  }
+  QTextStream in(&fileIn);
+  QStringList fileContent;
+  while (!in.atEnd()) {
+    fileContent << in.readLine();
+  }
+  fileIn.close();
+
+  // check if there is any data_path is present in the musrfit_startup.xml
+  bool dataPathPresent = false;
+  QString str;
+  for (int i=0; i<fileContent.count(); i++) {
+    str = fileContent[i];
+    if (str.trimmed().startsWith("<data_path>")) {
+      dataPathPresent = true;
+      break;
+    }
+  }
+
+  // write the new musrfit_startup.xml
+  QFile fileOut(fDefaultPath->getPrefPathName());
+  if (!fileOut.open(QIODevice::WriteOnly | QIODevice::Text)) {
+    QMessageBox::critical(this, "ERROR", QString("Cannot write to '%1'.").arg(fDefaultPath->getPrefPathName()));
+    return;
+  }
+  QTextStream out(&fileOut);
+  bool first = true;
+  for (int i=0; i<fileContent.count(); i++) {
+    str = fileContent[i];
+    if (!str.trimmed().startsWith("<data_path>")) {
+      // if not data_path was present, add the new data_paths just before the end of the musrfit_start.xml close tag
+      if ((dataPathPresent == false) && (str.trimmed().startsWith("</musrfit>"))) {
+        for (int j=0; j<fSearchPath_listWidget->count(); j++) {
+          out << "    <data_path>" << fSearchPath_listWidget->item(j)->text() << "</data_path>" << Qt::endl;
+        }
+      }
+      out << fileContent[i] << Qt::endl;
+    } else {
+      if (first) {
+        first = false;
+        for (int j=0; j<fSearchPath_listWidget->count(); j++)
+          out << "    <data_path>" << fSearchPath_listWidget->item(j)->text() << "</data_path>" << Qt::endl;
+      }
+    }
+  }
+  fileOut.close();
+}
+
+//----------------------------------------------------------------------------------------------------
+// END
+//----------------------------------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PChangeDefaultPathsDialog.h b/src/musredit_qt6/musredit/PChangeDefaultPathsDialog.h
new file mode 100644
index 00000000..e4aa0de4
--- /dev/null
+++ b/src/musredit_qt6/musredit/PChangeDefaultPathsDialog.h
@@ -0,0 +1,104 @@
+/****************************************************************************
+
+  PChangeDefaultPathsDialog.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PCHANGEDEFAULTPATHSDIALOG_H_
+#define _PCHANGEDEFAULTPATHSDIALOG_H_
+
+#include <QDialog>
+#include <QMessageBox>
+#include <QXmlStreamReader>
+#include <QIODevice>
+
+#include "ui_PChangeDefaultPathsDialog.h"
+
+class PDefaultPaths;
+
+//---------------------------------------------------------------------------
+class PDefaultPathsXMLParser
+{
+  public:
+    PDefaultPathsXMLParser(const QString &fln, PDefaultPaths *defaultPaths);
+    virtual ~PDefaultPathsXMLParser() {}
+
+    virtual bool isValid() { return fValid; }
+
+  private:
+    enum EAdminKeyWords {eEmpty, eDataPath};
+
+    bool parse(QIODevice *device);
+    bool startDocument();
+    bool startElement();
+    bool endElement();
+    bool characters();
+    bool endDocument();
+
+    QXmlStreamReader fXml;        ///< xml stream reader object
+    bool             fValid;      ///< flag showing if XML read has been successful
+    EAdminKeyWords   fKeyWord;    ///< key word tag to know how to handle the content
+    PDefaultPaths    *fDefaultPaths; ///< keeps the default search paths for the data files
+};
+
+//---------------------------------------------------------------------------
+class PDefaultPaths : public QObject
+{
+  public:
+    PDefaultPaths();
+    virtual ~PDefaultPaths() {}
+
+    virtual bool isValid() { return fValid; }
+    virtual void appendDefaultPath(QString str) { fDefaultPath << str; }
+    virtual QStringList *getDefaultPathList() { return &fDefaultPath; }
+    virtual QString getPrefPathName() { return fPrefPathName; }
+
+  private:
+    friend class PDefaultPathsXMLParser;
+
+    bool fValid;
+    QString fPrefPathName;
+    QStringList fDefaultPath;
+};
+
+//---------------------------------------------------------------------------
+class PChangeDefaultPathsDialog : public QDialog, private Ui::PChangeDefaultPathsDialog
+{
+  Q_OBJECT
+
+  public:
+    PChangeDefaultPathsDialog();
+
+  private slots:
+    void deleteItem();
+    void addItem();
+    void saveDefaultPathList();
+
+  private:
+    PDefaultPaths *fDefaultPath;
+};
+
+#endif // _PCHANGEDEFAULTPATHSDIALOG_H_
diff --git a/src/musredit_qt6/musredit/PDumpOutputHandler.cpp b/src/musredit_qt6/musredit/PDumpOutputHandler.cpp
new file mode 100644
index 00000000..1a17fcbe
--- /dev/null
+++ b/src/musredit_qt6/musredit/PDumpOutputHandler.cpp
@@ -0,0 +1,160 @@
+/****************************************************************************
+
+  PDumpOutputHandler.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2012-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QTimer>
+
+#include <QtDebug>
+
+#include "PDumpOutputHandler.h"
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Sets up the dump output handler GUI and starts the actual dump_header command
+ *
+ * \param cmd command string vector. From this the actual dump_header command will be generated and executed.
+ */
+PDumpOutputHandler::PDumpOutputHandler(QVector<QString> &cmd)
+{
+  if (cmd.empty())
+    return;
+
+  // Layout
+  fVbox = new QVBoxLayout( this );
+  fOutput = new QTextEdit();
+  fVbox->addWidget(fOutput);
+  fOutput->setMinimumSize(600, 755);
+  fOutput->setReadOnly(true);
+  connect( fOutput, SIGNAL( destroyed() ), this, SLOT( quitButtonPressed() ) );
+  fQuitButton = new QPushButton( tr("Quit") );
+  fVbox->addWidget(fQuitButton);
+  connect( fQuitButton, SIGNAL( clicked() ), this, SLOT( quitButtonPressed() ) );
+  resize( 600, 800 );
+  fQuitButton->setFocus();
+
+  // QProcess related code
+  fProc = new QProcess( this );
+
+  // make sure that the system environment variables are properly set
+  QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+  env.insert("LD_LIBRARY_PATH", env.value("ROOTSYS") + "/lib:" + env.value("LD_LIBRARY_PATH"));
+  fProc->setProcessEnvironment(env);
+
+  // Set up the command and arguments.
+  QString program = cmd[0];
+  QStringList arguments;
+  for (int i=1; i<cmd.size(); i++)
+    arguments << cmd[i];
+
+  connect( fProc, SIGNAL( readyReadStandardOutput() ), this, SLOT( readFromStdOut() ) );
+  connect( fProc, SIGNAL( readyReadStandardError() ), this, SLOT( readFromStdErr() ) );
+
+
+  fProc->start(program, arguments);
+  if ( !fProc->waitForStarted() ) {
+    // error handling
+    QString msg(tr("Could not execute the output command: ")+cmd[0]);
+    QMessageBox::critical( 0,
+                tr("Fatal error"),
+                msg,
+                tr("Quit") );
+    done(0);
+  }
+
+  fProcPID = fProc->processId();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Destructor. Checks if the a dump_header is still running and if yes try to kill it.
+ */
+PDumpOutputHandler::~PDumpOutputHandler()
+{
+  if (fProc->state() == QProcess::Running) {
+    fProc->terminate();
+    if (!fProc->waitForFinished()) {
+      qDebug() << "fProc still running, will call kill." << Qt::endl;
+      fProc->kill();
+    }
+    fProc->waitForFinished();
+  }
+  if (fProc->state() == QProcess::Running) {
+    QString cmd = "kill -9 "+ QString("%1").arg(fProcPID);
+    QString msg = "fProc still running even after Qt kill, will try system kill cmd: "+cmd;
+    qDebug() << msg << Qt::endl;
+    system(cmd.toLatin1());
+  }
+  if (fProc) {
+    delete fProc;
+    fProc = 0;
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Captures the standard output and adds it to the output text edit.
+ */
+void PDumpOutputHandler::readFromStdOut()
+{
+  // Read and process the data.
+  // Bear in mind that the data might be output in chunks.
+  fOutput->append( fProc->readAllStandardOutput() );
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Captures the standard error and adds it to the output text edit.
+ */
+void PDumpOutputHandler::readFromStdErr()
+{
+  // Read and process the data.
+  // Bear in mind that the data might be output in chunks.
+  fOutput->append( fProc->readAllStandardError() );
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>If the quit button is pressed while the dump_header is still running, try to terminate dump_header, if this
+ * does not work, try to kill dump_header.
+ */
+void PDumpOutputHandler::quitButtonPressed()
+{
+  // if the fitting is still taking place, kill it
+  if (fProc->state() == QProcess::Running) {
+    fProc->terminate();
+    if (!fProc->waitForFinished()) {
+      fProc->kill();
+    }
+  }
+
+  accept();
+}
+
+//----------------------------------------------------------------------------------------------------
+// END
+//----------------------------------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PDumpOutputHandler.h b/src/musredit_qt6/musredit/PDumpOutputHandler.h
new file mode 100644
index 00000000..5a726bd9
--- /dev/null
+++ b/src/musredit_qt6/musredit/PDumpOutputHandler.h
@@ -0,0 +1,72 @@
+/****************************************************************************
+
+  PDumpOutputHandler.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2012-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PDUMPOUTPUTHANDLER_H_
+#define _PDUMPOUTPUTHANDLER_H_
+
+#include <QObject>
+#include <QProcess>
+#include <QDialog>
+#include <QVBoxLayout>
+#include <QTextEdit>
+#include <QPushButton>
+#include <QMessageBox>
+#include <QVector>
+
+#include <cstdlib>
+
+//---------------------------------------------------------------------------------------
+/**
+ * <p>This class is the capturing the output of musrfit and displays it in a dialog so
+ * the user has the chance to follow the fitting process, warnings, error messages of
+ * musrfit.
+ */
+class PDumpOutputHandler : public QDialog
+{
+  Q_OBJECT
+
+  public:
+    PDumpOutputHandler(QVector<QString> &cmd);
+    virtual ~PDumpOutputHandler();
+
+  private slots:
+    virtual void readFromStdOut();
+    virtual void readFromStdErr();
+    virtual void quitButtonPressed();
+
+private:
+    qint64 fProcPID; ///< keeps the process PID
+    QProcess *fProc; ///< pointer to the dump_header process
+
+    QVBoxLayout *fVbox; ///< pointer to the dialog layout manager
+    QTextEdit *fOutput; ///< the captured dump_header output is written (read only) into this text edit object.
+    QPushButton *fQuitButton; ///< quit button
+};
+
+#endif // _PDUMPOUTPUTHANDLER_H_
diff --git a/src/musredit_qt6/musredit/PFindDialog.cpp b/src/musredit_qt6/musredit/PFindDialog.cpp
new file mode 100644
index 00000000..d512d40c
--- /dev/null
+++ b/src/musredit_qt6/musredit/PFindDialog.cpp
@@ -0,0 +1,108 @@
+/****************************************************************************
+
+  PFindDialog.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QPushButton>
+#include <QComboBox>
+#include <QCheckBox>
+
+#include <QMessageBox>
+
+#include "PFindDialog.h"
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Sets up the find dialog.
+ *
+ * \param data pointer to the find/replace data structure needed to perform the task.
+ * \param selection flag indicating if the find shall be restricted to the selected area
+ * \param parent pointer to the parent object
+ * \param f qt specific window flags
+ */
+PFindDialog::PFindDialog(PFindReplaceData *data, const bool selection, QWidget *parent) :
+    QDialog(parent), fData(data)
+{
+  setupUi(this);
+
+  setModal(true);
+
+  // if only empty text, disable find button
+  if (fData->findText == "") {
+    fFind_pushButton->setEnabled(false);
+  }
+
+  // if there is no selection, disable that option
+  if (!selection) {
+    fSelectedText_checkBox->setChecked(false);
+    fSelectedText_checkBox->setEnabled(false);
+  }
+
+  fFind_comboBox->setItemText(0, fData->findText);
+  fCaseSensitive_checkBox->setChecked(fData->caseSensitive);
+  fWholeWordsOnly_checkBox->setChecked(fData->wholeWordsOnly);
+  fFromCursor_checkBox->setChecked(fData->fromCursor);
+  fFindBackwards_checkBox->setChecked(fData->findBackwards);
+
+  if (selection) {
+    fSelectedText_checkBox->setChecked(fData->selectedText);
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Extracts all the necessary informations from the find dialog, feeds it to the find/replace
+ * structure and returns a point to this structure.
+ */
+PFindReplaceData* PFindDialog::getData()
+{
+  fData->findText = fFind_comboBox->currentText();
+  fData->caseSensitive = fCaseSensitive_checkBox->isChecked();
+  fData->wholeWordsOnly = fWholeWordsOnly_checkBox->isChecked();
+  fData->fromCursor = fFromCursor_checkBox->isChecked();
+  fData->findBackwards = fFindBackwards_checkBox->isChecked();
+  if (fSelectedText_checkBox->isEnabled())
+    fData->selectedText = fSelectedText_checkBox->isChecked();
+
+  return fData;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Enables the find button only if there is any find text entered.
+ */
+void PFindDialog::onFindTextAvailable(const QString&)
+{
+  if (fFind_comboBox->currentText() != "")
+    fFind_pushButton->setEnabled(true);
+  else
+    fFind_pushButton->setEnabled(false);
+}
+
+//----------------------------------------------------------------------------------------------------
+// END
+//----------------------------------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PFindDialog.h b/src/musredit_qt6/musredit/PFindDialog.h
new file mode 100644
index 00000000..55ed89a7
--- /dev/null
+++ b/src/musredit_qt6/musredit/PFindDialog.h
@@ -0,0 +1,57 @@
+/****************************************************************************
+
+  PFindDialog.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PFINDDIALOG_H_
+#define _PFINDDIALOG_H_
+
+#include "musredit.h"
+#include "ui_PFindDialog.h"
+
+//--------------------------------------------------------------------------------------------------
+/**
+ * <p>PFindDialog is the class handling the find dialog.
+ */
+class PFindDialog : public QDialog, private Ui::PFindDialog
+{
+  Q_OBJECT
+
+  public:
+    PFindDialog(PFindReplaceData *data, const bool selection, QWidget *parent = nullptr);
+    virtual ~PFindDialog() {}
+
+    virtual PFindReplaceData *getData();
+
+  protected slots:
+    virtual void onFindTextAvailable(const QString&);
+
+  private:
+    PFindReplaceData *fData; ///< stores the data necessary to perform find/replace.
+};
+
+#endif // _PFINDDIALOG_H_
diff --git a/src/musredit_qt6/musredit/PFitOutputHandler.cpp b/src/musredit_qt6/musredit/PFitOutputHandler.cpp
new file mode 100644
index 00000000..5e240a8a
--- /dev/null
+++ b/src/musredit_qt6/musredit/PFitOutputHandler.cpp
@@ -0,0 +1,178 @@
+/****************************************************************************
+
+  PFitOutputHandler.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QTimer>
+
+#include <QtDebug>
+
+#include "PFitOutputHandler.h"
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Sets up the fit output handler GUI and starts the actual fit
+ *
+ * \param workingDirectory string holding the working directory wished. In this directory the mlog-file will be saved.
+ * \param cmd command string vector. From this the actuall fit command will be generated and executed.
+ */
+PFitOutputHandler::PFitOutputHandler(QString workingDirectory, QVector<QString> &cmd)
+{
+  if (cmd.empty())
+    return;
+
+  // Layout
+  fVbox = new QVBoxLayout( this );
+//Qt.3x  fVbox->resize(800, 500);
+  fOutput = new QPlainTextEdit();
+  fOutput->setMaximumBlockCount(1000);
+  fVbox->addWidget(fOutput);
+  fOutput->setMinimumSize(800, 455);
+  fOutput->setReadOnly(true);
+  connect( fOutput, SIGNAL( destroyed() ), this, SLOT( quitButtonPressed() ) );
+  fQuitButton = new QPushButton( tr("Fitting...") );
+  fVbox->addWidget(fQuitButton);
+  connect( fQuitButton, SIGNAL( clicked() ), this, SLOT( quitButtonPressed() ) );
+  resize( 800, 500 );
+  fQuitButton->setFocus();
+
+  // QProcess related code
+  fProc = new QProcess( this );
+
+  // make sure that the system environment variables are properly set
+  QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+  env.insert("LD_LIBRARY_PATH", env.value("ROOTSYS") + "/lib:" + env.value("LD_LIBRARY_PATH"));
+  fProc->setProcessEnvironment(env);
+  fProc->setWorkingDirectory(workingDirectory);
+
+  // Set up the command and arguments.
+  QString program = cmd[0];
+  QStringList arguments;
+  for (int i=1; i<cmd.size(); i++)
+    arguments << cmd[i];
+
+  connect( fProc, SIGNAL( readyReadStandardOutput() ), this, SLOT( readFromStdOut() ) );
+  connect( fProc, SIGNAL( readyReadStandardError() ), this, SLOT( readFromStdErr() ) );
+  connect( fProc, SIGNAL( finished(int, QProcess::ExitStatus) ),   this, SLOT( processDone(int, QProcess::ExitStatus) ) );
+
+  fProc->start(program, arguments);
+  if ( !fProc->waitForStarted() ) {
+    // error handling
+    QString msg(tr("Could not execute the output command: ")+cmd[0]);
+    QMessageBox::critical( nullptr,
+                tr("Fatal error"),
+                msg,
+                tr("Quit") );
+    done(0);
+  }
+  fProcPID = fProc->processId();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Destructor. Checks if the a fit is still running and if yes try to kill it.
+ */
+PFitOutputHandler::~PFitOutputHandler()
+{
+  if (fProc->state() == QProcess::Running) {
+    fProc->terminate();
+    if (!fProc->waitForFinished()) {
+      qDebug() << "fProc still running, will call kill." << Qt::endl;
+      fProc->kill();
+    }
+    fProc->waitForFinished();
+  }
+  if (fProc->state() == QProcess::Running) {
+    QString cmd = "kill -9 "+ QString("%1").arg(fProcPID);
+    QString msg = "fProc still running even after Qt kill, will try system kill cmd: "+cmd;
+    qDebug() << msg << Qt::endl;
+    system(cmd.toLatin1());
+  }
+  if (fProc) {
+    delete fProc;
+    fProc = nullptr;
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Captures the standard output and adds it to the output text edit.
+ */
+void PFitOutputHandler::readFromStdOut()
+{
+  // Read and process the data.
+  // Bear in mind that the data might be output in chunks.
+  fOutput->appendPlainText( fProc->readAllStandardOutput() );
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Captures the standard error and adds it to the output text edit.
+ */
+void PFitOutputHandler::readFromStdErr()
+{
+  // Read and process the data.
+  // Bear in mind that the data might be output in chunks.
+  fOutput->appendPlainText( fProc->readAllStandardError() );
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>If musrfit finishes, crashes, ..., the quit button text will be changed to done.
+ *
+ * \param exitCode exit code of musrfit
+ * \param exitStatus exit status of musrfit
+ */
+void PFitOutputHandler::processDone(int exitCode, QProcess::ExitStatus exitStatus)
+{
+  if ((exitStatus == QProcess::CrashExit) && (exitCode != 0)) {
+    qDebug() << "**ERROR** PFitOutputHandler::processDone: exitCode = " << exitCode << Qt::endl;
+  }
+  fQuitButton->setText("Done");
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>If the quit button is pressed while the fit is still running, try to terminate musrfit, if this
+ * does not work, try to kill musrfit.
+ */
+void PFitOutputHandler::quitButtonPressed()
+{
+  // if the fitting is still taking place, kill it
+  if (fProc->state() == QProcess::Running) {
+    fProc->terminate();
+    if (!fProc->waitForFinished()) {
+      fProc->kill();
+    }
+  }
+
+  accept();
+}
+
+//----------------------------------------------------------------------------------------------------
+// END
+//----------------------------------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PFitOutputHandler.h b/src/musredit_qt6/musredit/PFitOutputHandler.h
new file mode 100644
index 00000000..66f80a98
--- /dev/null
+++ b/src/musredit_qt6/musredit/PFitOutputHandler.h
@@ -0,0 +1,73 @@
+/****************************************************************************
+
+  PFitOutputHandler.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PFITOUTPUTHANDLER_H_
+#define _PFITOUTPUTHANDLER_H_
+
+#include <QObject>
+#include <QProcess>
+#include <QDialog>
+#include <QVBoxLayout>
+#include <QPlainTextEdit>
+#include <QPushButton>
+#include <QMessageBox>
+#include <QVector>
+
+#include <cstdlib>
+
+//---------------------------------------------------------------------------------------
+/**
+ * <p>This class is the capturing the output of musrfit and displays it in a dialog so
+ * the user has the chance to follow the fitting process, warnings, error messages of
+ * musrfit.
+ */
+class PFitOutputHandler : public QDialog
+{
+  Q_OBJECT
+
+  public:
+    PFitOutputHandler(QString workingDirectory, QVector<QString> &cmd);
+    virtual ~PFitOutputHandler();
+
+  private slots:
+    virtual void readFromStdOut();
+    virtual void readFromStdErr();
+    virtual void quitButtonPressed();
+    virtual void processDone(int exitCode, QProcess::ExitStatus exitStatus);
+
+private:
+    qint64 fProcPID; ///< keeps the process PID
+    QProcess *fProc; ///< pointer to the musrfit process
+
+    QVBoxLayout *fVbox; ///< pointer to the dialog layout manager
+    QPlainTextEdit *fOutput; ///< the captured musrfit output is written (read only) into this text edit object.
+    QPushButton *fQuitButton; ///< quit button, either to interrupt the fit or to close the dialog at the end of the fit.
+};
+
+#endif // _PFITOUTPUTHANDLER_H_
diff --git a/src/musredit_qt6/musredit/PGetAsymmetryRunBlockDialog.cpp b/src/musredit_qt6/musredit/PGetAsymmetryRunBlockDialog.cpp
new file mode 100644
index 00000000..7d6f2658
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetAsymmetryRunBlockDialog.cpp
@@ -0,0 +1,300 @@
+/****************************************************************************
+
+  PGetAsymmetryRunBlockDialog.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QLineEdit>
+#include <QValidator>
+#include <QComboBox>
+#include <QMessageBox>
+#include <QDesktopServices>
+#include <QUrl>
+
+#include "PGetAsymmetryRunBlockDialog.h"
+
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Constructor.
+ *
+ * \param helpUrl help url for the asymmetry run block
+ */
+PGetAsymmetryRunBlockDialog::PGetAsymmetryRunBlockDialog(const QString helpUrl) : fHelpUrl(helpUrl)
+{
+  setupUi(this);
+
+  setModal(true);
+
+  fForwardHistoNo_lineEdit->setValidator( new QIntValidator(fForwardHistoNo_lineEdit) );
+  fBackwardHistoNo_lineEdit->setValidator( new QIntValidator(fBackwardHistoNo_lineEdit) );
+  fDataForwardStart_lineEdit->setValidator( new QIntValidator(fDataForwardStart_lineEdit) );
+  fDataForwardEnd_lineEdit->setValidator( new QIntValidator(fDataForwardEnd_lineEdit) );
+  fDataBackwardStart_lineEdit->setValidator( new QIntValidator(fDataBackwardStart_lineEdit) );
+  fDataBackwardEnd_lineEdit->setValidator( new QIntValidator(fDataBackwardEnd_lineEdit) );
+  fBackgroundForwardStart_lineEdit->setValidator( new QIntValidator(fBackgroundForwardStart_lineEdit) );
+  fBackgroundForwardEnd_lineEdit->setValidator( new QIntValidator(fBackgroundForwardEnd_lineEdit) );
+  fBackgroundBackwardStart_lineEdit->setValidator( new QIntValidator(fBackgroundBackwardStart_lineEdit) );
+  fBackgroundBackwardEnd_lineEdit->setValidator( new QIntValidator(fBackgroundBackwardEnd_lineEdit) );
+  fBackgroundForwardFix_lineEdit->setValidator( new QDoubleValidator(fBackgroundForwardFix_lineEdit) );
+  fBackgroundBackwardFix_lineEdit->setValidator( new QDoubleValidator(fBackgroundBackwardFix_lineEdit) );
+  fFitRangeStart_lineEdit->setValidator( new QDoubleValidator(fFitRangeStart_lineEdit) );
+  fFitRangeEnd_lineEdit->setValidator( new QDoubleValidator(fFitRangeEnd_lineEdit) );
+  fPacking_lineEdit->setValidator( new QIntValidator(fPacking_lineEdit) );
+  fAlpha_lineEdit->setValidator( new QIntValidator(fAlpha_lineEdit) );
+  fBeta_lineEdit->setValidator( new QIntValidator(fBeta_lineEdit) );
+  fT0Forward_lineEdit->setValidator( new QIntValidator(fT0Forward_lineEdit) );
+  fT0Backward_lineEdit->setValidator( new QIntValidator(fT0Backward_lineEdit) );
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns the run information line of the asymmetry run block.
+ */
+QString PGetAsymmetryRunBlockDialog::getRunHeaderInfo()
+{
+  QString str;
+
+  str  = "RUN " + fRunFileName_lineEdit->text() + " ";
+  str += fBeamline_lineEdit->text().toUpper() + " ";
+  str += fInstitute_comboBox->currentText() + " ";
+  str += fFileFormat_comboBox->currentText() + "   (name beamline institute data-file-format)\n";
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns the alpha parameter for the asymmetry run block.
+ *
+ * \param present flag indicating if the alpha parameter is used, or a default alpha==1 is going to be used.
+ */
+QString PGetAsymmetryRunBlockDialog::getAlphaParameter(bool &present)
+{
+  QString str = "alpha           " + fAlpha_lineEdit->text() + "\n";
+
+  if (str.isEmpty())
+    present = false;
+  else
+    present = true;
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns the beta parameter for the asymmetry run block
+ *
+ * \param present flag indicating if the beta parameter is used, or a default beta==1 is going to be used.
+ */
+QString PGetAsymmetryRunBlockDialog::getBetaParameter(bool &present)
+{
+  QString str = "beta            " + fBeta_lineEdit->text() + "\n";
+
+  if (str.isEmpty())
+    present = false;
+  else
+    present = true;
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns the map for the asymmetry run block.
+ *
+ * \param valid flag indicating if the map is potentially valid.
+ */
+QString PGetAsymmetryRunBlockDialog::getMap(bool &valid)
+{
+  QString str = fMap_lineEdit->text().trimmed().remove(" ");
+
+  // check if potentially proper map line
+  for (int i=0; i<str.length(); i++) {
+    if (!str[i].isDigit()) {
+      valid = false;
+      break;
+    }
+  }
+
+  str = "map             " + fMap_lineEdit->text() + "\n";
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns the background information for the asymmetry run block.
+ *
+ * \param valid flag indicating if a valid background (either backgr.fix or background is given, but not both)
+ * is present.
+ */
+QString PGetAsymmetryRunBlockDialog::getBackground(bool &valid)
+{
+  QString str = "";
+
+  valid = true;
+
+  // check that either backgr.fix or background is given, but not both
+  if (fBackgroundForwardStart_lineEdit->text().isEmpty() && fBackgroundForwardEnd_lineEdit->text().isEmpty() &&
+      fBackgroundBackwardStart_lineEdit->text().isEmpty() && fBackgroundBackwardEnd_lineEdit->text().isEmpty() &&
+      fBackgroundForwardFix_lineEdit->text().isEmpty() && fBackgroundBackwardFix_lineEdit->text().isEmpty()) {
+    valid = false;
+    str = "background      0  10  0  10\n";
+  } else {
+    if (!fBackgroundForwardStart_lineEdit->text().isEmpty()) { // assume the rest is given, not fool prove but ...
+      str  = "background      ";
+      str += fBackgroundForwardStart_lineEdit->text() + "   ";
+      str += fBackgroundForwardEnd_lineEdit->text() + "   ";
+      str += fBackgroundBackwardStart_lineEdit->text() + "   ";
+      str += fBackgroundBackwardEnd_lineEdit->text() + "\n";
+    }
+    if (!fBackgroundForwardFix_lineEdit->text().isEmpty()) { // assume the rest is given, not fool prove but ...
+      str  = "backgr.fix      ";
+      str += fBackgroundForwardFix_lineEdit->text() + "   ";
+      str += fBackgroundBackwardFix_lineEdit->text() + "\n";
+    }
+  }
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns a data range (in bins) entry for the asymmetry run block.
+ *
+ * \param valid flag indicating if the data entries are valid.
+ */
+QString PGetAsymmetryRunBlockDialog::getData(bool &valid)
+{
+  QString str = "";
+
+  if (fDataForwardStart_lineEdit->text().isEmpty() || fDataForwardEnd_lineEdit->text().isEmpty() ||
+      fDataBackwardStart_lineEdit->text().isEmpty() || fDataBackwardEnd_lineEdit->text().isEmpty()) {
+    valid = false;
+  } else {
+    str  = "data            ";
+    str += fDataForwardStart_lineEdit->text() + "   ";
+    str += fDataForwardEnd_lineEdit->text() + "   ";
+    str += fDataBackwardStart_lineEdit->text() + "   ";
+    str += fDataBackwardEnd_lineEdit->text() + "\n";
+    valid = true;
+  }
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns a t0 parameter for the asymmetry run block.
+ *
+ * \param present flag indicating if a t0 parameter is set.
+ */
+QString PGetAsymmetryRunBlockDialog::getT0(bool &present)
+{
+  QString str = "";
+
+  if (!fT0Forward_lineEdit->text().isEmpty() && !fT0Forward_lineEdit->text().isEmpty()) {
+    str  = "t0              ";
+    str += fT0Forward_lineEdit->text() + "   ";
+    str += fT0Backward_lineEdit->text() + "\n";
+    present = true;
+  } else {
+    present = false;
+  }
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns a fit range entry for the asymmetry run block. If no fit range has been provided,
+ * a fit range [0,10] will be set and the valid flag will be set to false.
+ *
+ * \param valid flag indicating if a fit range was provided.
+ */
+QString PGetAsymmetryRunBlockDialog::getFitRange(bool &valid)
+{
+  QString str = "";
+
+  if (fFitRangeStart_lineEdit->text().isEmpty() || fFitRangeEnd_lineEdit->text().isEmpty()) {
+    str += "fit             0.0   10.0\n";
+    valid = false;
+  } else {
+    str += "fit             ";
+    str += fFitRangeStart_lineEdit->text() + "   ";
+    str += fFitRangeEnd_lineEdit->text() + "\n";
+    valid = true;
+  }
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns the packing/binning of the asymmetry run block. If no packing has been provided,
+ * a packing of '1' will be set and the present flag will be set to false.
+ *
+ * \param present flag indicating if a packing parameter was provided.
+ */
+QString PGetAsymmetryRunBlockDialog::getPacking(bool &present)
+{
+  QString str = "";
+
+  if (fPacking_lineEdit->text().isEmpty()) {
+    present = false;
+    str += "packing         1\n";
+  } else {
+    present = true;
+    str += "packing         " + fPacking_lineEdit->text() + "\n\n";
+  }
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Generates a help content window showing the description of the asymmetry run block.
+ */
+void PGetAsymmetryRunBlockDialog::helpContent()
+{
+  if (fHelpUrl.isEmpty()) {
+    QMessageBox::information(this, "**INFO**", "Will eventually show a help window");
+  } else {
+    bool ok = QDesktopServices::openUrl(QUrl(fHelpUrl, QUrl::TolerantMode));
+    if (!ok) {
+      QString msg = QString("<p>Sorry: Couldn't open default web-browser for the help.<br>Please try: <a href=\"%1\">musrfit docu</a> in your web-browser.").arg(fHelpUrl);
+      QMessageBox::critical( nullptr,
+                             tr("Fatal Error"),
+                             msg,
+                             tr("Quit") );
+    }
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+// END
+//----------------------------------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PGetAsymmetryRunBlockDialog.h b/src/musredit_qt6/musredit/PGetAsymmetryRunBlockDialog.h
new file mode 100644
index 00000000..c6c2cce3
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetAsymmetryRunBlockDialog.h
@@ -0,0 +1,65 @@
+/****************************************************************************
+
+  PGetAsymmetryRunBlockDialog.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PGETASYMMETRYRUNBLOCKDIALOG_H_
+#define _PGETASYMMETRYRUNBLOCKDIALOG_H_
+
+#include "ui_PGetAsymmetryRunBlockDialog.h"
+
+//---------------------------------------------------------------------------
+/**
+ * <p>Class handling the content of the menu: Edit/Add Block/Asymmetry Run Block.
+ */
+class PGetAsymmetryRunBlockDialog : public QDialog, private Ui::PGetAsymmetryRunBlockDialog
+{
+  Q_OBJECT
+
+  public:
+    PGetAsymmetryRunBlockDialog(const QString helpUrl);
+
+    QString getRunHeaderInfo();
+    QString getAlphaParameter(bool &present);
+    QString getBetaParameter(bool &present);
+    QString getMap(bool &valid);
+    QString getForward() { return QString("forward         " + fForwardHistoNo_lineEdit->text() + "\n"); }
+    QString getBackward() { return QString("backward        " + fBackwardHistoNo_lineEdit->text() + "\n"); }
+    QString getBackground(bool &valid);
+    QString getData(bool &valid);
+    QString getT0(bool &present);
+    QString getFitRange(bool &valid);
+    QString getPacking(bool &present);
+
+  private slots:
+    void helpContent();
+
+  private:
+    QString fHelpUrl; ///< help url for the asymmetry run block
+};
+
+#endif // _PGETASYMMETRYRUNBLOCKDIALOG_H_
diff --git a/src/musredit_qt6/musredit/PGetDefaultDialog.cpp b/src/musredit_qt6/musredit/PGetDefaultDialog.cpp
new file mode 100644
index 00000000..0c5ae759
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetDefaultDialog.cpp
@@ -0,0 +1,118 @@
+/****************************************************************************
+
+  PGetDefaultDialog.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QObject>
+#include <QComboBox>
+#include <QMessageBox>
+
+#include "PHelp.h"
+
+#include "PGetDefaultDialog.h"
+
+#define INSTITUTE_PSI    0
+#define INSTITUTE_RAL    1
+#define INSTITUTE_TRIUMF 2
+#define INSTITUTE_JPARC  3
+
+#define FILE_FORMAT_NEXUS    0
+#define FILE_FORMAT_ROOT_NPP 1
+#define FILE_FORMAT_ROOT_PPC 2
+#define FILE_FORMAT_PSIBIN   3
+#define FILE_FORMAT_MUD      4
+#define FILE_FORMAT_WKM      5
+#define FILE_FORMAT_ASCII    6
+#define FILE_FORMAT_DB       7
+
+
+//---------------------------------------------------------------------------
+/**
+ * <p>Constructor
+ *
+ * \param helpUrl help url for the default dialog
+ */
+PGetDefaultDialog::PGetDefaultDialog(const QString helpUrl) : fHelpUrl(helpUrl)
+{
+  setupUi(this);
+
+  setModal(true);
+}
+
+
+//---------------------------------------------------------------------------
+/**
+ * <p>Finds the name of the institute in the combo box and selects it.
+ *
+ * \param str name of the institute
+ */
+void PGetDefaultDialog::setInstitute(const QString &str) {
+
+  for (int i=0; i<fInstitute_comboBox->count(); i++) {
+    if (fInstitute_comboBox->itemText(i).toLower() == str.toLower()) {
+      fInstitute_comboBox->setCurrentIndex(i);
+      break;
+    }
+  }
+
+}
+
+//---------------------------------------------------------------------------
+/**
+ * <p>Finds the file format in the combo box and selects it.
+ *
+ * \param str file format
+ */
+void PGetDefaultDialog::setFileFormat(const QString &str)
+{
+
+  for (int i=0; i<fFileFormat_comboBox->count(); i++) {
+    if (fFileFormat_comboBox->itemText(i).toLower() == str.toLower()) {
+      fFileFormat_comboBox->setCurrentIndex(i);
+      break;
+    }
+  }
+
+}
+
+//---------------------------------------------------------------------------
+/**
+ * <p>Generates a help content window showing the description fitting the default dialog.
+ */
+void PGetDefaultDialog::helpContent()
+{
+  #ifdef _WIN32GCC
+  QMessageBox::information(this, "**INFO**", "If a newer Qt version was available, a help window would be shown!");
+  #else
+  PHelp *help = new PHelp(fHelpUrl);
+  help->show();
+  #endif // _WIN32GCC
+}
+
+//---------------------------------------------------------------------------
+// END
+//---------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PGetDefaultDialog.h b/src/musredit_qt6/musredit/PGetDefaultDialog.h
new file mode 100644
index 00000000..8ef8f216
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetDefaultDialog.h
@@ -0,0 +1,69 @@
+/****************************************************************************
+
+  PGetDefaultDialog.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PGETDEFAULTDIALOG_H_
+#define _PGETDEFAULTDIALOG_H_
+
+#include <QString>
+#include <QWidget>
+#include <QLineEdit>
+#include <QComboBox>
+
+#include "ui_PGetDefaultDialog.h"
+
+//---------------------------------------------------------------------------
+/**
+ * <p>Handels the default dialog which is used to generate a default asymmetry or
+ * single histogram msr input file.
+ */
+class PGetDefaultDialog : public QDialog, private Ui::PGetDefaultDialog
+{
+  Q_OBJECT
+
+  public:
+    PGetDefaultDialog(const QString helpUrl = "");
+    virtual ~PGetDefaultDialog() {}
+
+    virtual const QString getRunFileName() const { return fRunFileName_lineEdit->text(); }
+    virtual const QString getBeamline() const { return fBeamline_lineEdit->text(); }
+    virtual const QString getInstitute() const { return fInstitute_comboBox->currentText(); }
+    virtual const QString getFileFormat() const { return fFileFormat_comboBox->currentText(); }
+
+    virtual void setBeamline(const QString &str) { fBeamline_lineEdit->setText(str); }
+    virtual void setInstitute(const QString &str);
+    virtual void setFileFormat(const QString &str);
+
+  protected slots:
+    virtual void helpContent();
+
+  private:
+    QString fHelpUrl; ///< help url for the default dialog
+};
+
+#endif // _PGETDEFAULTDIALOG_H_
diff --git a/src/musredit_qt6/musredit/PGetFourierBlockDialog.cpp b/src/musredit_qt6/musredit/PGetFourierBlockDialog.cpp
new file mode 100644
index 00000000..2f76e66b
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetFourierBlockDialog.cpp
@@ -0,0 +1,148 @@
+/****************************************************************************
+
+  PGetFourierBlockDialog.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QObject>
+#include <QComboBox>
+#include <QValidator>
+#include <QLineEdit>
+#include <QPushButton>
+#include <QMessageBox>
+#include <QDesktopServices>
+#include <QUrl>
+
+#include "PGetFourierBlockDialog.h"
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Constructor
+ *
+ * \param helpUrl help url address for the Fourier block.
+ */
+PGetFourierBlockDialog::PGetFourierBlockDialog(const QString helpUrl) : fHelpUrl(helpUrl)
+{
+  setupUi(this);
+
+  setModal(true);
+
+  fFourierBlock = "";
+  fFourierPower_lineEdit->setValidator( new QIntValidator(fFourierPower_lineEdit) );
+  fPhaseCorrectionRangeLow_lineEdit->setValidator( new QDoubleValidator(fPhaseCorrectionRangeLow_lineEdit) );
+  fPhaseCorrectionRangeUp_lineEdit->setValidator( new QDoubleValidator(fPhaseCorrectionRangeUp_lineEdit) );
+  fRangeLow_lineEdit->setValidator( new QDoubleValidator(fRangeLow_lineEdit) );
+  fRangeUp_lineEdit->setValidator( new QDoubleValidator(fRangeUp_lineEdit) );
+
+  connect( fPhase_lineEdit, SIGNAL( lostFocus() ), this, SLOT( checkPhaseParameter() ) );
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Checks if the phase parameter is either a number are has the form parXX, where XX is a number.
+ */
+void PGetFourierBlockDialog::checkPhaseParameter()
+{
+  QString str = fPhase_lineEdit->text();
+
+  if (str.isEmpty())
+    return;
+
+  bool ok;
+  int ival;
+
+  ival = str.toInt(&ok);
+  if (!ok) { // i.e. the phase entry is not a number. Check for parXX
+    str = str.trimmed();
+    if (str.startsWith("par")) { //
+      str.remove("par");
+      ival = str.toInt(&ok);
+      if (!ok) {
+        fPhase_lineEdit->clear();
+        QMessageBox::critical(this, "**ERROR**",
+                              "Allowed phase entries are either a parameter number,\n or an parXX entry, where XX is a parameter number",
+                              QMessageBox::Ok, QMessageBox::NoButton);
+        fPhase_lineEdit->setFocus();
+      }
+    } else { // neither a parXX nor a number
+      fPhase_lineEdit->clear();
+      QMessageBox::critical(this, "**ERROR**",
+                            "Allowed phase entries are either a parameter number,\n or an parXX entry, where XX is a parameter number",
+                            QMessageBox::Ok, QMessageBox::NoButton);
+        fPhase_lineEdit->setFocus();
+    }
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Transfers the data of the dialog into a valid msr-file Fourier block string.
+ */
+void PGetFourierBlockDialog::fillFourierBlock()
+{
+  fFourierBlock  = "###############################################################\n";
+  fFourierBlock += "FOURIER\n";
+  fFourierBlock += "units " + fUnits_comboBox->currentText() + "\n";
+  QString str = fFourierPower_lineEdit->text();
+  if (!str.isEmpty())
+    fFourierBlock += "fourier_power " + str + "\n";
+  fFourierBlock += "apodization " + fApodization_comboBox->currentText() + "\n";
+  fFourierBlock += "plot " + fPlot_comboBox->currentText() + "\n";
+  str = fPhase_lineEdit->text();
+  if (!str.isEmpty())
+    fFourierBlock += "phase " + str + "\n";
+  if (!fPhaseCorrectionRangeLow_lineEdit->text().isEmpty() && !fPhaseCorrectionRangeUp_lineEdit->text().isEmpty()) {
+    fFourierBlock += "range_for_phase_correction " + fPhaseCorrectionRangeLow_lineEdit->text() + " " +
+                     fPhaseCorrectionRangeUp_lineEdit->text() + "\n";
+  }
+  if (!fRangeLow_lineEdit->text().isEmpty() && !fRangeUp_lineEdit->text().isEmpty()) {
+    fFourierBlock += "range " + fRangeLow_lineEdit->text() + " " + fRangeUp_lineEdit->text() + "\n";
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Generates a help content window showing the description of the Fourier block.
+ */
+void PGetFourierBlockDialog::helpContent()
+{
+  if (fHelpUrl.isEmpty()) {
+    QMessageBox::information(this, "**INFO**", "Will eventually show a help window");
+  } else {
+    bool ok = QDesktopServices::openUrl(QUrl(fHelpUrl, QUrl::TolerantMode));
+    if (!ok) {
+      QString msg = QString("<p>Sorry: Couldn't open default web-browser for the help.<br>Please try: <a href=\"%1\">musrfit docu</a> in your web-browser.").arg(fHelpUrl);
+      QMessageBox::critical( nullptr,
+                             tr("Fatal Error"),
+                             msg,
+                             tr("Quit") );
+    }
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+// END
+//----------------------------------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PGetFourierBlockDialog.h b/src/musredit_qt6/musredit/PGetFourierBlockDialog.h
new file mode 100644
index 00000000..3006c2e7
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetFourierBlockDialog.h
@@ -0,0 +1,60 @@
+/****************************************************************************
+
+  PGetFourierBlockDialog.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2016 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PGETFOURIERBLOCKDIALOG_H_
+#define _PGETFOURIERBLOCKDIALOG_H_
+
+#include <QString>
+
+#include "ui_PGetFourierBlockDialog.h"
+
+//-------------------------------------------------------------------------------
+/**
+ * <p>Handles the Fourier dialog.
+ */
+class PGetFourierBlockDialog : public QDialog, private Ui::PGetFourierBlockDialog
+{
+  Q_OBJECT
+
+  public:
+    PGetFourierBlockDialog(const QString helpUrl);
+
+    QString getFourierBlock() { return fFourierBlock; }
+
+  private slots:
+    void checkPhaseParameter();
+    void fillFourierBlock();
+    void helpContent();
+
+  private:
+    QString fFourierBlock;  ///< keeps the msr Fourier block
+    QString fHelpUrl;       ///< help url for the Fourier block
+};
+
+#endif // _PGETFOURIERBLOCKDIALOG_H_
diff --git a/src/musredit_qt6/musredit/PGetFunctionsBlockDialog.cpp b/src/musredit_qt6/musredit/PGetFunctionsBlockDialog.cpp
new file mode 100644
index 00000000..861af5dc
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetFunctionsBlockDialog.cpp
@@ -0,0 +1,124 @@
+/****************************************************************************
+
+  PGetFunctionsBlockDialog.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QTextEdit>
+#include <QLineEdit>
+#include <QMessageBox>
+#include <QRegularExpression>
+#include <QEvent>
+#include <QDesktopServices>
+#include <QUrl>
+
+#include <QtDebug>
+
+#include "PGetFunctionsBlockDialog.h"
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Constructor.
+ *
+ * \param helpUrl help url for the FUNCTIONS block.
+ */
+PGetFunctionsBlockDialog::PGetFunctionsBlockDialog(const QString helpUrl) : fHelpUrl(helpUrl)
+{
+  setupUi(this);
+
+  setModal(true);
+
+  fFunctionInput_lineEdit->setFocus();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Adds a function to the FUNCTIONS block text edit after carrying out some primitve tests about
+ * the consistency of the function (far from being a syntax/semantic checker!!).
+ */
+void PGetFunctionsBlockDialog::addFunction()
+{
+  QString str = fFunctionInput_lineEdit->text();
+
+  if (str.isEmpty())
+    return;
+
+  // validation
+
+  // check that the function string starts with 'fun'
+  if (!str.trimmed().startsWith("fun")) {
+    QMessageBox::critical(this, "addFunction",
+                          "a function has to start with 'funX' (X a number).\nNeeds to be fixed.",
+                          QMessageBox::Ok, QMessageBox::NoButton);
+    return;
+  }
+
+  // check if function string contains 'funX ='
+  if (str.indexOf( QRegularExpression("fun\\d+\\s*=") ) == -1) {
+    QMessageBox::critical(this, "addFunction",
+                          "a function has to start with 'funX =' (X a positive number).\nNeeds to be fixed.",
+                          QMessageBox::Ok, QMessageBox::NoButton);
+    return;
+  }
+
+  // check if function string contains more than one 'funX'
+  if (str.trimmed().lastIndexOf("fun", -1, Qt::CaseInsensitive) > 0) {
+    QMessageBox::critical(this, "addFunction",
+                          "a function cannot contain more than one function,\ni.e. fun2 = fun1 + par1 is not OK.",
+                          QMessageBox::Ok, QMessageBox::NoButton);
+    return;
+  }
+
+  // add to Functions block
+  fFunctionBlock_plainTextEdit->appendPlainText(str);
+
+  // clear functions input text
+  fFunctionInput_lineEdit->clear();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Generates a help content window showing the description of the FUNCTIONS block.
+ */
+void PGetFunctionsBlockDialog::helpContent()
+{
+  if (fHelpUrl.isEmpty()) {
+    QMessageBox::information(this, "**INFO**", "Will eventually show a help window");
+  } else {
+    bool ok = QDesktopServices::openUrl(QUrl(fHelpUrl, QUrl::TolerantMode));
+    if (!ok) {
+      QString msg = QString("<p>Sorry: Couldn't open default web-browser for the help.<br>Please try: <a href=\"%1\">musrfit docu</a> in your web-browser.").arg(fHelpUrl);
+      QMessageBox::critical( nullptr,
+                             tr("Fatal Error"),
+                             msg,
+                             tr("Quit") );
+    }
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+// END
+//----------------------------------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PGetFunctionsBlockDialog.h b/src/musredit_qt6/musredit/PGetFunctionsBlockDialog.h
new file mode 100644
index 00000000..c70427f6
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetFunctionsBlockDialog.h
@@ -0,0 +1,56 @@
+/****************************************************************************
+
+  PGetFunctionsBlockDialog.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PGETFUNCTIONSBLOCKDIALOG_H_
+#define _PGETFUNCTIONSBLOCKDIALOG_H_
+
+#include "ui_PGetFunctionsBlockDialog.h"
+
+//-----------------------------------------------------------------------------------
+/**
+ * <p>Handles the content of the FUNCTIONS block dialog.
+ */
+class PGetFunctionsBlockDialog : public QDialog, private Ui::PGetFunctionsBlockDialog
+{
+  Q_OBJECT
+
+  public:
+    PGetFunctionsBlockDialog(const QString helpUrl = "");
+
+    QString getFunctionsBlock() { return fFunctionBlock_plainTextEdit->toPlainText(); }
+
+  private slots:
+    void addFunction();
+    void helpContent();
+
+  private:
+    QString fHelpUrl; ///< help url address for the FUNCTIONS block.
+};
+
+#endif // _PGETFUNCTIONSBLOCKDIALOG_H_
diff --git a/src/musredit_qt6/musredit/PGetMusrFTOptionsDialog.cpp b/src/musredit_qt6/musredit/PGetMusrFTOptionsDialog.cpp
new file mode 100644
index 00000000..bf0d0b66
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetMusrFTOptionsDialog.cpp
@@ -0,0 +1,599 @@
+/****************************************************************************
+
+  PGetMusrFTOptionsDialog.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QLineEdit>
+#include <QValidator>
+#include <QComboBox>
+#include <QMessageBox>
+#include <QDesktopServices>
+#include <QUrl>
+#include <QFileDialog>
+
+#include "PGetMusrFTOptionsDialog.h"
+
+#define MUSRFT_OPT_UNDEF         0
+#define MUSRFT_OPT_REAL          1
+#define MUSRFT_OPT_IMAG          2
+#define MUSRFT_OPT_REAL_AND_IMAG 3
+#define MUSRFT_OPT_POWER         4
+#define MUSRFT_OPT_PHASE         5
+
+#define MUSRFT_APOD_UNDEF        0
+#define MUSRFT_APOD_WEAK         1
+#define MUSRFT_APOD_MEDIUM       2
+#define MUSRFT_APOD_STRONG       3
+
+#define MUSRFT_UNIT_UNDEF        0
+#define MUSRFT_UNIT_GAUSS        1
+#define MUSRFT_UNIT_TESLA        2
+#define MUSRFT_UNIT_FREQ         3
+#define MUSRFT_UNIT_CYCLE        4
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Constructor.
+ *
+ * \param currentMsrFile path-file name of the currently active msr-file in musredit
+ * \param prevCmd list of the last (potential) previously call.
+ * \param helpUrl help url for the asymmetry run block
+ */
+PGetMusrFTOptionsDialog::PGetMusrFTOptionsDialog(QString currentMsrFile, QStringList &prevCmd, const QString helpUrl) :
+  fCurrentMsrFileName(currentMsrFile), fHelpUrl(helpUrl)
+{
+  setupUi(this);
+  setModal(true);
+
+  fBkgRangeStartBin_lineEdit->setValidator( new QIntValidator(fBkgRangeStartBin_lineEdit) );
+  fBkgRangeEndBin_lineEdit->setValidator( new QIntValidator(fBkgRangeEndBin_lineEdit) );
+  fPacking_lineEdit->setValidator( new QIntValidator(fPacking_lineEdit) );
+  fTimeRangeStart_lineEdit->setValidator( new QDoubleValidator(fTimeRangeStart_lineEdit) );
+  fTimeRangeEnd_lineEdit->setValidator( new QDoubleValidator(fTimeRangeEnd_lineEdit) );
+  fFourierPower_lineEdit->setValidator( new QIntValidator(fFourierPower_lineEdit) );
+  fLifetimeCorrection_lineEdit->setValidator( new QDoubleValidator(fLifetimeCorrection_lineEdit) );
+  fFourierRangeStart_lineEdit->setValidator( new QDoubleValidator(fFourierRangeStart_lineEdit) );
+  fFourierRangeEnd_lineEdit->setValidator( new QDoubleValidator(fFourierRangeEnd_lineEdit) );
+  fPacking_lineEdit->setText("1");
+
+  // populate dialog with the previous cmd call
+  bool msrTag = true;
+  QString str, str1, line;
+  int idx;
+  for (int i=0; i<prevCmd.size(); i++) {
+    // collect msr-file-names
+    if (msrTag) {
+      line = "";
+      while (prevCmd[i].contains(".msr") && (i<prevCmd.size())) {
+        // split msr-file path-name into path and name
+        str = prevCmd[i];
+        idx = str.lastIndexOf("/");
+        str1 = str;
+        str.remove(idx, str.length()-idx);
+        fMsrFilePaths << str;
+        str1.remove(0, idx+1);
+        fMsrFileNames << str1;
+        line += str1 + " ";
+        i++;
+      }
+      line.remove(line.length()-1, 1);
+      fMsrFileSelector_lineEdit->setText(line);
+      msrTag = false;
+    }
+    // collect data-file-names
+    if (prevCmd[i] == "-df") {
+      i++;
+      line = "";
+      while (!prevCmd[i].startsWith("-") && (i<prevCmd.size())) {
+        // split msr-file path-name into path and name
+        str = prevCmd[i];
+        idx = str.lastIndexOf("/");
+        str1 = str;
+        str.remove(idx, str.length()-idx);
+        fDataFilePaths << str;
+        str1.remove(0, idx+1);
+        fDataFileNames << str1;
+        line += str1 + " ";
+        i++;
+      }
+      line.remove(line.length()-1, 1);
+      fDataFileSelector_lineEdit->setText(line);
+    }
+    // background-range
+    if (prevCmd[i] == "-br") {
+      fBkgRangeStartBin_lineEdit->setText(prevCmd[++i]);
+      fBkgRangeEndBin_lineEdit->setText(prevCmd[++i]);
+    }
+    // fourier-option
+    if (prevCmd[i] == "-fo") {
+      if (prevCmd[i+1] == "real")
+        fFourierOption_comboBox->setCurrentIndex(MUSRFT_OPT_REAL);
+      else if (prevCmd[i+1] == "imag")
+        fFourierOption_comboBox->setCurrentIndex(MUSRFT_OPT_IMAG);
+      else if (prevCmd[i+1] == "real+imag")
+        fFourierOption_comboBox->setCurrentIndex(MUSRFT_OPT_REAL_AND_IMAG);
+      else if (prevCmd[i+1] == "power")
+        fFourierOption_comboBox->setCurrentIndex(MUSRFT_OPT_POWER);
+      else if (prevCmd[i+1] == "phase")
+        fFourierOption_comboBox->setCurrentIndex(MUSRFT_OPT_PHASE);
+      else
+        fFourierOption_comboBox->setCurrentIndex(MUSRFT_OPT_UNDEF);
+      i++;
+    }
+    // apodization
+    if (prevCmd[i] == "-ap") {
+      if (prevCmd[i+1] == "weak")
+        fApodization_comboBox->setCurrentIndex(MUSRFT_APOD_WEAK);
+      else if (prevCmd[i+1] == "medium")
+        fApodization_comboBox->setCurrentIndex(MUSRFT_APOD_MEDIUM);
+      else if (prevCmd[i+1] == "strong")
+        fApodization_comboBox->setCurrentIndex(MUSRFT_APOD_STRONG);
+      else
+        fApodization_comboBox->setCurrentIndex(MUSRFT_APOD_UNDEF);
+      i++;
+    }
+    // fourier-power
+    if (prevCmd[i] == "-fp") {
+      fFourierPower_lineEdit->setText(prevCmd[++i]);
+    }
+    // units
+    if (prevCmd[i] == "-u") {
+      if (prevCmd[i+1] == "Gauss")
+        fFourierUnits_comboBox->setCurrentIndex(MUSRFT_UNIT_GAUSS);
+      else if (prevCmd[i+1] == "Tesla")
+        fFourierUnits_comboBox->setCurrentIndex(MUSRFT_UNIT_TESLA);
+      else if (prevCmd[i+1] == "MHz")
+        fFourierUnits_comboBox->setCurrentIndex(MUSRFT_UNIT_FREQ);
+      else if (prevCmd[i+1] == "Mc/s")
+        fFourierUnits_comboBox->setCurrentIndex(MUSRFT_UNIT_CYCLE);
+      else
+        fFourierUnits_comboBox->setCurrentIndex(MUSRFT_UNIT_UNDEF);
+      i++;
+    }
+    // phase
+    if (prevCmd[i] == "-ph") {
+      // NOT YET IMPLEMENTED
+    }
+    // fourier-range
+    if (prevCmd[i] == "-fr") {
+      fFourierRangeStart_lineEdit->setText(prevCmd[++i]);
+      fFourierRangeEnd_lineEdit->setText(prevCmd[++i]);
+    }
+    // time-range
+    if (prevCmd[i] == "-tr") {
+      fTimeRangeStart_lineEdit->setText(prevCmd[++i]);
+      fTimeRangeEnd_lineEdit->setText(prevCmd[++i]);
+    }
+    // histo list
+    if (prevCmd[i] == "--histo") {
+      i++;
+      line = "";
+      while (!prevCmd[i].startsWith("-") && (i<prevCmd.size())) {
+        line += prevCmd[i++] + " ";
+      }
+      line.remove(line.length()-1, 1);
+      fHistoList_lineEdit->setText(line);
+    }
+    // average ALL tag
+    if (prevCmd[i] == "-a") {
+      fAveragedView_checkBox->setCheckState(Qt::Checked);
+    }
+    // average per data set tag
+    if (prevCmd[i] == "-ad") {
+      fAveragePerDataSet_checkBox->setCheckState(Qt::Checked);
+    }
+    // t0 list
+    if (prevCmd[i] == "--t0") {
+      i++;
+      line = "";
+      while (!prevCmd[i].startsWith("-") && (i<prevCmd.size())) {
+        line += prevCmd[i++] + " ";
+      }
+      line.remove(line.length()-1, 1);
+      fT0_lineEdit->setText(line);
+    }
+    // packing
+    if (prevCmd[i] == "-pa") {
+      fPacking_lineEdit->setText(prevCmd[++i]);
+    }
+    // title
+    if (prevCmd[i] == "--title") {
+      fFourierTitle_lineEdit->setText(prevCmd[i+1]);
+    }
+    // create msr-file tag
+    if (prevCmd[i] == "--create-msr-file") {
+      fCreateMsrFileName = prevCmd[++i];
+      fCreateMsrFile_checkBox->setCheckState(Qt::Checked);
+    }
+    // lifetime correction
+    if (prevCmd[i] == "-lc") {
+      fLifetimeCorrection_lineEdit->setText(prevCmd[++i]);
+    }
+  }
+
+  // connect all necessary single and slots
+  connect(fCurrentMsrFile_checkBox, SIGNAL( stateChanged(int) ), this, SLOT( currentMsrFileTagChanged(int) ) );
+  connect(fAllMsrFiles_checkBox, SIGNAL( stateChanged(int) ), this, SLOT( allMsrFileTagChanged(int) ) );
+  connect(fMsrFileSelector_pushButton, SIGNAL( clicked() ), this, SLOT( selectMsrFileNames() ) );
+  connect(fDataFileSelector_pushButton, SIGNAL( clicked() ), this, SLOT( selectDataFileNames() ) );
+  connect(fCreateMsrFile_checkBox, SIGNAL( stateChanged(int) ), this, SLOT( createMsrFileChanged(int) ) );
+  connect(fMsrFileNameClear_pushButton, SIGNAL (clicked() ), this, SLOT( clearMsrFileNames() ) );
+  connect(fDataFileNameClear_pushButton, SIGNAL (clicked() ), this, SLOT( clearDataFileNames() ) );
+  connect(fResetAll_pushButton, SIGNAL( clicked() ), this, SLOT( resetAll() ) );
+  connect(fAveragedView_checkBox, SIGNAL ( stateChanged(int) ), this, SLOT( averagedAll(int) ) );
+  connect(fAveragePerDataSet_checkBox, SIGNAL ( stateChanged(int) ), this, SLOT( averagedPerDataSet(int) ) );
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns the musrFT command line options.
+ */
+QStringList PGetMusrFTOptionsDialog::getMusrFTOptions()
+{
+  QStringList cmd;
+  QString str("");
+  QStringList strList;
+
+  // check if currently active msr-file shall be used
+  if (fCurrentMsrFile_checkBox->checkState() == Qt::Checked) {
+    cmd << fCurrentMsrFileName;
+  } else {
+    // msr-files
+    for (int i=0; i<fMsrFilePaths.size(); i++) {
+      str = fMsrFilePaths[i]+"/"+fMsrFileNames[i];
+      cmd << str;
+    }
+
+    // data-files
+    if (fDataFilePaths.size() > 0) {
+      cmd << "-df";
+      for (int i=0; i<fDataFilePaths.size(); i++) {
+        str = fDataFilePaths[i]+"/"+fDataFileNames[i];
+        cmd << str;
+      }
+    }
+  }
+
+  // background range
+  if ((fBkgRangeStartBin_lineEdit->text().length() > 0) && (fBkgRangeEndBin_lineEdit->text().length() > 0)) {
+    cmd << "-br";
+    cmd << fBkgRangeStartBin_lineEdit->text();
+    cmd << fBkgRangeEndBin_lineEdit->text();
+  }
+
+  // background values
+  if (fBkgList_lineEdit->text().length() > 0) {
+
+  }
+
+  // fourier-option
+  if (fFourierOption_comboBox->currentText() != "UnDef") {
+    cmd << "-fo";
+    cmd << fFourierOption_comboBox->currentText();
+  }
+
+  // apodization
+  cmd << "-ap";
+  cmd << fApodization_comboBox->currentText();
+
+  // fourier-power
+  if (fFourierPower_lineEdit->text().length() > 0) {
+    cmd << "-fp";
+    cmd << fFourierPower_lineEdit->text();
+  }
+
+  // units
+  if (fFourierUnits_comboBox->currentText() != "UnDef") {
+    cmd << "-u";
+    cmd << fFourierUnits_comboBox->currentText();
+  }
+
+  // phase
+
+  // fourier-range
+  if ((fFourierRangeStart_lineEdit->text().length() > 0) && (fFourierRangeEnd_lineEdit->text().length() > 0)) {
+    cmd << "-fr";
+    cmd << fFourierRangeStart_lineEdit->text();
+    cmd << fFourierRangeEnd_lineEdit->text();
+  }
+
+  // time-range
+  if ((fTimeRangeStart_lineEdit->text().length() > 0) && (fTimeRangeEnd_lineEdit->text().length() > 0)) {
+    cmd << "-tr";
+    cmd << fTimeRangeStart_lineEdit->text();
+    cmd << fTimeRangeEnd_lineEdit->text();
+  }
+
+  // histo list
+  if (fHistoList_lineEdit->text().length() > 0) {
+    cmd << "--histo";
+    strList = fHistoList_lineEdit->text().split(" ", Qt::SkipEmptyParts);
+    for (int i=0; i<strList.size(); i++)
+      cmd << strList[i];
+  }
+
+  // averaged view ALL
+  if (fAveragedView_checkBox->checkState() == Qt::Checked)
+    cmd << "-a";
+
+  // averaged view per data set
+  if (fAveragePerDataSet_checkBox->checkState() == Qt::Checked)
+    cmd << "-ad";
+
+  // t0 list
+  if (fT0_lineEdit->text().length() > 0) {
+    cmd << "--t0";
+    strList = fT0_lineEdit->text().split(" ", Qt::SkipEmptyParts);
+    for (int i=0; i<strList.size(); i++)
+      cmd << strList[i];
+  }
+
+  // packing
+  if (fPacking_lineEdit->text().length() > 0) {
+    cmd << "-pa";
+    cmd << fPacking_lineEdit->text();
+  }
+
+  // title
+  if (fFourierTitle_lineEdit->text().length() > 0) {
+    cmd << "--title";
+    cmd << fFourierTitle_lineEdit->text();
+  }
+
+  // create-msr-file
+  if (fCreateMsrFile_checkBox->checkState() == Qt::Checked) {
+    cmd << "--create-msr-file";
+    cmd << fCreateMsrFileName;
+  }
+
+  // lifetimecorrection
+  if (fLifetimeCorrection_lineEdit->text().length() > 0) {
+    cmd << "-lc";
+    cmd << fLifetimeCorrection_lineEdit->text();
+  }
+
+  return cmd;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT called when fCurrentMsrFile_checkBox is checked/unchecked. If checked, it will clean up
+ * the msr-file path-file list and the data-file path-file list.
+ */
+void PGetMusrFTOptionsDialog::currentMsrFileTagChanged(int state)
+{
+  if (state == Qt::Checked) {
+    fAllMsrFiles_checkBox->setCheckState(Qt::Unchecked);
+
+    // remove all msr-data-file-names and data-path-file-names
+    fMsrFilePaths.clear();
+    fMsrFileNames.clear();
+    fMsrFileSelector_lineEdit->setText("");
+    fDataFilePaths.clear();
+    fDataFileNames.clear();
+    fDataFileSelector_lineEdit->setText("");
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT called when fAllMsrFiles_checkBox is checked/unchecked. Currently it has no functionality.
+ */
+void PGetMusrFTOptionsDialog::allMsrFileTagChanged(int state)
+{
+  if (state == Qt::Checked) {
+    fCurrentMsrFile_checkBox->setCheckState(Qt::Unchecked);
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT called when fMsrFileSelector_pushButton is clicked. Collects the msr-file path-name list.
+ */
+void PGetMusrFTOptionsDialog::selectMsrFileNames()
+{
+  QStringList flns = QFileDialog::getOpenFileNames( this, tr("Open msr-File(s)"), tr( "./" ),
+                                                    tr( "msr-Files (*.msr);;All Files (*)" ));
+
+  QString str(""), str1("");
+  int idx;
+  if (flns.size() > 0) {
+    // delete already present elements
+    fMsrFilePaths.clear();
+    fMsrFileNames.clear();
+
+    // split path-name into path and name
+    for (int i=0; i<flns.size(); i++) {
+      str = flns[i];
+      idx = str.lastIndexOf("/");
+      str1 = str;
+      str.remove(idx, str.length()-idx);
+      fMsrFilePaths << str;
+      str1.remove(0, idx+1);
+      fMsrFileNames << str1;
+    }
+
+    // populate fMsrFileSelector_lineEdit
+    str = QString("");
+    for (int i=0; i<fMsrFileNames.size()-1; i++) {
+      str += fMsrFileNames[i] + " ";
+    }
+    str += fMsrFileNames[fMsrFileNames.size()-1];
+
+    fMsrFileSelector_lineEdit->setText(str);
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT called when the fMsrFileNameClear_pushButton is clicked.
+ */
+void PGetMusrFTOptionsDialog::clearMsrFileNames()
+{
+  fMsrFileSelector_lineEdit->setText("");
+  fMsrFilePaths.clear();
+  fMsrFileNames.clear();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT called when fDataFileSelector_pushButton is clicked. Collects the data-file path-name list.
+ */
+void PGetMusrFTOptionsDialog::selectDataFileNames()
+{
+  QStringList flns = QFileDialog::getOpenFileNames( this, tr("Open msr-File(s)"), tr( "./" ),
+                                                    tr( "data-Files (*.root *.bin *.msr *.nxs *.mdu);;All Files (*)" ));
+
+  QString str(""), str1("");
+  int idx;
+  if (flns.size() > 0) {
+    // delete already present elements
+    fDataFilePaths.clear();
+    fDataFileNames.clear();
+
+    // split path-name into path and name
+    for (int i=0; i<flns.size(); i++) {
+      str = flns[i];
+      idx = str.lastIndexOf("/");
+      str1 = str;
+      str.remove(idx, str.length()-idx);
+      fDataFilePaths << str;
+      str1.remove(0, idx+1);
+      fDataFileNames << str1;
+    }
+
+    // populate fMsrFileSelector_lineEdit
+    str = QString("");
+    for (int i=0; i<fDataFileNames.size()-1; i++) {
+      str += fDataFileNames[i] + " ";
+    }
+    str += fDataFileNames[fDataFileNames.size()-1];
+
+    fDataFileSelector_lineEdit->setText(str);
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT called when the fDataFileNameClear_pushButton is clicked.
+ */
+void PGetMusrFTOptionsDialog::clearDataFileNames()
+{
+  fDataFileSelector_lineEdit->setText("");
+  fDataFilePaths.clear();
+  fDataFileNames.clear();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT called when the create-msr-file tag has changed
+ */
+void PGetMusrFTOptionsDialog::createMsrFileChanged(int state)
+{
+  if (state == Qt::Checked) {
+    fCreateMsrFileName = QFileDialog::getSaveFileName(this, tr("Create msr-file"), "./", tr("msr-Files (*.msr);;All Files (*)"));
+    if (fCreateMsrFileName.length() == 0)
+      fCreateMsrFile_checkBox->setCheckState(Qt::Unchecked);
+  } else {
+    fCreateMsrFileName = "";
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT called when the Reset All button is pressed. Will remove all settings.
+ */
+void PGetMusrFTOptionsDialog::resetAll()
+{
+  fCurrentMsrFile_checkBox->setCheckState(Qt::Unchecked);
+  fAllMsrFiles_checkBox->setCheckState(Qt::Unchecked);
+  fMsrFilePaths.clear();
+  fMsrFileNames.clear();
+  fMsrFileSelector_lineEdit->setText("");
+  fDataFilePaths.clear();
+  fDataFileNames.clear();
+  fDataFileSelector_lineEdit->setText("");
+  fBkgRangeStartBin_lineEdit->setText("");
+  fBkgRangeEndBin_lineEdit->setText("");
+  fBkgList_lineEdit->setText("");
+  fApodization_comboBox->setCurrentIndex(MUSRFT_APOD_UNDEF);
+  fPacking_lineEdit->setText("");
+  fTimeRangeStart_lineEdit->setText("");
+  fTimeRangeEnd_lineEdit->setText("");
+  fHistoList_lineEdit->setText("");
+  fT0_lineEdit->setText("");
+  fFourierOption_comboBox->setCurrentIndex(MUSRFT_OPT_UNDEF);
+  fFourierUnits_comboBox->setCurrentIndex(MUSRFT_UNIT_UNDEF);
+  fFourierPower_lineEdit->setText("");
+  fLifetimeCorrection_lineEdit->setText("");
+  fFourierRangeStart_lineEdit->setText("");
+  fFourierRangeEnd_lineEdit->setText("");
+  fAveragedView_checkBox->setCheckState(Qt::Unchecked);
+  fAveragePerDataSet_checkBox->setCheckState(Qt::Unchecked);
+  fCreateMsrFile_checkBox->setCheckState(Qt::Unchecked);
+  fFourierTitle_lineEdit->setText("");
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT called when averaged view for ALL data is checked.
+ */
+void PGetMusrFTOptionsDialog::averagedAll(int state)
+{
+  if ((state == Qt::Checked) && fAveragePerDataSet_checkBox->isChecked())
+    fAveragePerDataSet_checkBox->setCheckState(Qt::Unchecked);
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT called when averaged view per data set is checked.
+ */
+void PGetMusrFTOptionsDialog::averagedPerDataSet(int state)
+{
+  if ((state == Qt::Checked) && fAveragedView_checkBox->isChecked())
+    fAveragedView_checkBox->setCheckState(Qt::Unchecked);
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Generates a help content window showing the description for musrFT.
+ */
+void PGetMusrFTOptionsDialog::helpContent()
+{
+  if (fHelpUrl.isEmpty()) {
+    QMessageBox::information(this, "**INFO**", "Will eventually show a help window");
+  } else {
+    bool ok = QDesktopServices::openUrl(QUrl(fHelpUrl, QUrl::TolerantMode));
+    if (!ok) {
+      QString msg = QString("<p>Sorry: Couldn't open default web-browser for the help.<br>Please try: <a href=\"%1\">musrfit docu</a> in your web-browser.").arg(fHelpUrl);
+      QMessageBox::critical( nullptr,
+                             tr("Fatal Error"),
+                             msg,
+                             tr("Quit") );
+    }
+  }
+}
diff --git a/src/musredit_qt6/musredit/PGetMusrFTOptionsDialog.h b/src/musredit_qt6/musredit/PGetMusrFTOptionsDialog.h
new file mode 100644
index 00000000..bc2d5421
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetMusrFTOptionsDialog.h
@@ -0,0 +1,71 @@
+/****************************************************************************
+
+  PGetMusrFTOptionsDialog.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PGETMUSRFTOPTIONSDIALOG_H_
+#define _PGETMUSRFTOPTIONSDIALOG_H_
+
+#include <QDialog>
+#include <QStringList>
+
+#include "ui_PGetMusrFTOptionsDialog.h"
+
+class PGetMusrFTOptionsDialog : public QDialog, private Ui::PGetMusrFTOptionsDialog
+{
+  Q_OBJECT
+
+  public:
+    PGetMusrFTOptionsDialog(QString currentMsrFile, QStringList &prevCmd, const QString helpUrl);
+    QStringList getMusrFTOptions();
+
+  public slots:
+    void helpContent();
+
+  private slots:
+    void currentMsrFileTagChanged(int state);
+    void allMsrFileTagChanged(int state);
+    void selectMsrFileNames();
+    void clearMsrFileNames();
+    void selectDataFileNames();
+    void clearDataFileNames();
+    void createMsrFileChanged(int state);
+    void resetAll();
+    void averagedAll(int state);
+    void averagedPerDataSet(int state);
+
+  private:
+    QStringList fMsrFilePaths;   ///< list keeping all the paths from the msr-file path-name list
+    QStringList fMsrFileNames;   ///< list keeping all the names from the msr-file path-name list
+    QStringList fDataFilePaths;  ///< list keeping all the paths from the data-file path-name list
+    QStringList fDataFileNames;  ///< list keeping all the names from the data-file path-name list
+    QString fCreateMsrFileName;  ///< keeps the msr-path-file name for msr-file creation
+    QString fCurrentMsrFileName; ///< keeps the msr-path-file name of the currently active msr-file in musredit.
+    QString fHelpUrl; ///< help url for the asymmetry run block
+};
+
+#endif // _PGETMUSRFTOPTIONSDIALOG_H_
diff --git a/src/musredit_qt6/musredit/PGetNonMusrRunBlockDialog.cpp b/src/musredit_qt6/musredit/PGetNonMusrRunBlockDialog.cpp
new file mode 100644
index 00000000..4e91478c
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetNonMusrRunBlockDialog.cpp
@@ -0,0 +1,173 @@
+/****************************************************************************
+
+  PGetNonMusrRunBlockDialog.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QLineEdit>
+#include <QValidator>
+#include <QComboBox>
+#include <QMessageBox>
+#include <QDesktopServices>
+#include <QUrl>
+
+#include "PGetNonMusrRunBlockDialog.h"
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Constructor
+ *
+ * \param helpUrl help url for the NonMusr run block.
+ */
+PGetNonMusrRunBlockDialog::PGetNonMusrRunBlockDialog(const QString helpUrl) : fHelpUrl(helpUrl)
+{
+  setupUi(this);
+
+  setModal(true);
+
+  fFitRangeStart_lineEdit->setValidator( new QDoubleValidator(fFitRangeStart_lineEdit) );
+  fFitRangeEnd_lineEdit->setValidator( new QDoubleValidator(fFitRangeEnd_lineEdit) );
+
+  int idx = -1;
+  for (int i=0; i<fFileFormat_comboBox->count(); i++) {
+    if (fFileFormat_comboBox->itemText(i) == "DB") {
+      idx = i;
+      break;
+    }
+  }
+  if (idx >= 0) {
+    fFileFormat_comboBox->setCurrentIndex(idx);
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Extracts the run header information from the dialog, and returns it as a string.
+ */
+QString PGetNonMusrRunBlockDialog::getRunHeaderInfo()
+{
+  QString str;
+
+  str  = "RUN " + fRunFileName_lineEdit->text() + " ";
+  str += fBeamline_lineEdit->text().toUpper() + " ";
+  str += fInstitute_comboBox->currentText() + " ";
+  str += fFileFormat_comboBox->currentText() + "   (name beamline institute data-file-format)\n";
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Extracts the map from the dialog, and returns it as a string.
+ *
+ * \param valid flag indicating of the map is potentially being valid.
+ */
+QString PGetNonMusrRunBlockDialog::getMap(bool &valid)
+{
+  QString str = fMap_lineEdit->text().trimmed().remove(" ");
+
+  // check if potentially proper map line
+  for (int i=0; i<str.length(); i++) {
+    if (!str[i].isDigit()) {
+      valid = false;
+      break;
+    }
+  }
+
+  str = "map             " + fMap_lineEdit->text() + "\n";
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Extracts xy-data from the dialog and returns it as a string.
+ *
+ * \param valid flag showing that x/y-data are present.
+ */
+QString PGetNonMusrRunBlockDialog::getXYData(bool &valid)
+{
+  QString str = "";
+
+  if (fXData_lineEdit->text().isEmpty() || fYData_lineEdit->text().isEmpty()) {
+    valid = false;
+  } else {
+    str  = "xy-data         ";
+    str += fXData_lineEdit->text() + "   ";
+    str += fYData_lineEdit->text() + "\n";
+    valid = true;
+  }
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Extracts the fit-range from the dialog and returns it as a string. If not fit-range was given,
+ * a fit-range from 0 to 10 us will be returned and the valid flag will be set to false.
+ *
+ * \param valid flag showing if a fit-range is given.
+ */
+QString PGetNonMusrRunBlockDialog::getFitRange(bool &valid)
+{
+  QString str = "";
+
+  if (fFitRangeStart_lineEdit->text().isEmpty() || fFitRangeEnd_lineEdit->text().isEmpty()) {
+    str += "fit             0.0   10.0\n";
+    valid = false;
+  } else {
+    str += "fit             ";
+    str += fFitRangeStart_lineEdit->text() + "   ";
+    str += fFitRangeEnd_lineEdit->text() + "\n";
+    valid = true;
+  }
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Generates a help content window showing the description of the NonMusr run block.
+ */
+void PGetNonMusrRunBlockDialog::helpContent()
+{
+  if (fHelpUrl.isEmpty()) {
+    QMessageBox::information(this, "**INFO**", "Will eventually show a help window");
+  } else {
+    bool ok = QDesktopServices::openUrl(QUrl(fHelpUrl, QUrl::TolerantMode));
+    if (!ok) {
+      QString msg = QString("<p>Sorry: Couldn't open default web-browser for the help.<br>Please try: <a href=\"%1\">musrfit docu</a> in your web-browser.").arg(fHelpUrl);
+      QMessageBox::critical( nullptr,
+                             tr("Fatal Error"),
+                             msg,
+                             tr("Quit") );
+    }
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+// END
+//----------------------------------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PGetNonMusrRunBlockDialog.h b/src/musredit_qt6/musredit/PGetNonMusrRunBlockDialog.h
new file mode 100644
index 00000000..9ed00d9f
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetNonMusrRunBlockDialog.h
@@ -0,0 +1,58 @@
+/****************************************************************************
+
+  PGetNonMusrRunBlockDialog.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PGETNONMUSRRUNBLOCKDIALOG_H_
+#define _PGETNONMUSRRUNBLOCKDIALOG_H_
+
+#include "ui_PGetNonMusrRunBlockDialog.h"
+
+//-------------------------------------------------------------------------------------
+/**
+ * <p>Handles the content of the NonMusr run block dialog.
+ */
+class PGetNonMusrRunBlockDialog : public QDialog, private Ui::PGetNonMusrRunBlockDialog
+{
+  Q_OBJECT
+
+  public:
+    PGetNonMusrRunBlockDialog(const QString helpUrl = "");
+
+    QString getRunHeaderInfo();
+    QString getMap(bool &valid);
+    QString getXYData(bool &valid);
+    QString getFitRange(bool &valid);
+
+ private slots:
+    void helpContent();
+
+  private:
+    QString fHelpUrl; ///< help url address for the NonMusr run block.
+};
+
+#endif // _PGETNONMUSRRUNBLOCKDIALOG_H_
diff --git a/src/musredit_qt6/musredit/PGetParameterBlockDialog.cpp b/src/musredit_qt6/musredit/PGetParameterBlockDialog.cpp
new file mode 100644
index 00000000..5e986ebb
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetParameterBlockDialog.cpp
@@ -0,0 +1,236 @@
+/****************************************************************************
+
+  PGetParameterBlockDialog.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QLineEdit>
+#include <QValidator>
+#include <QMessageBox>
+#include <QSpinBox>
+#include <QTextEdit>
+#include <QPushButton>
+#include <QEvent>
+#include <QDesktopServices>
+#include <QUrl>
+
+#include "PGetParameterBlockDialog.h"
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Constructor.
+ *
+ * \param helpUrl help url of the PARAMETER block.
+ */
+PGetParameterBlockDialog::PGetParameterBlockDialog(const QString helpUrl) : fHelpUrl(helpUrl)
+{
+  setupUi(this);
+
+  setModal(true);
+
+  // setup event filter
+  installEventFilter(this);
+
+  fValue_lineEdit->setValidator( new QDoubleValidator(fValue_lineEdit) );
+  fStep_lineEdit->setValidator( new QDoubleValidator(fStep_lineEdit) );
+
+  fParam_plainTextEdit->setFont(QFont("Courier", 10));
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>This event filter is filtering out the return key, and if present adds the current parameters
+ * to the parameter list.
+ *
+ * \param obj object which was generating the event.
+ * \param ev event of the object.
+ */
+bool PGetParameterBlockDialog::eventFilter( QObject *obj, QEvent *ev )
+{
+  if (obj == this) {
+    if (ev->type() == QEvent::KeyPress) {
+      QKeyEvent *k = (QKeyEvent*)ev;
+      if (k->key() == Qt::Key_Return) {
+        paramAdd();
+        return true;
+      } else {
+        return false;
+      }
+    } else {
+      return false;
+    }
+  } else {
+    return false;
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Adds a parameter to the text edit window.
+ */
+void PGetParameterBlockDialog::paramAdd()
+{
+  QString param, str, spaces;
+
+  // get No
+  str = fParamNo_spinBox->text();
+  if (str.toInt() < 10)
+    param = "         " + str + " ";
+  else
+    param = "        " + str + " ";
+
+  // get name
+  str = fName_lineEdit->text();
+  if (str.isEmpty()) {
+    QMessageBox::critical(this, "**ERROR**",
+       "empty parameter name not allowed!",
+       QMessageBox::Ok, QMessageBox::NoButton);
+    return;
+  } else {
+    param += str;
+    if (str.length() < 13)
+      param += spaces.fill(' ', 13-str.length());
+    else
+      param += " ";
+  }
+
+  // get value
+  str = fValue_lineEdit->text();
+  if (str.isEmpty()) {
+    QMessageBox::critical(this, "**ERROR**",
+       "empty parameter value not allowed!",
+       QMessageBox::Ok, QMessageBox::NoButton);
+    return;
+  } else {
+    param += str;
+    if (str.length() < 10)
+      param += spaces.fill(' ', 10-str.length());
+    else
+      param += " ";
+  }
+
+  // get step
+  str = fStep_lineEdit->text();
+  if (str.isEmpty()) {
+    QMessageBox::critical(this, "**ERROR**",
+       "empty parameter step not allowed!",
+       QMessageBox::Ok, QMessageBox::NoButton);
+    return;
+  } else {
+    param += str;
+    if (str.length() < 10)
+      param += spaces.fill(' ', 10-str.length());
+    else
+      param += " ";
+  }
+
+  // add positive error none
+  param += "none       ";
+
+  if ((fLower_lineEdit->text() != "none") || (fUpper_lineEdit->text() != "none")) {
+    // get lower boundary
+    str = fLower_lineEdit->text();
+    bool ok;
+    double val = str.toDouble(&ok);
+    if (!ok && (str != "none")) {
+      QMessageBox::critical(this, "**ERROR**",
+         "invalid lower boundary! Must be a double are the key word 'none'",
+         QMessageBox::Ok, QMessageBox::NoButton);
+      return;
+    } else {
+      param += str;
+      if (str.length() < 10)
+        param += spaces.fill(' ', 10-str.length());
+      else
+        param += " ";
+    }
+
+    // get upper boundary
+    str = fUpper_lineEdit->text();
+    val = str.toDouble(&ok);
+    if (!ok && (str != "none")) {
+      QMessageBox::critical(this, "**ERROR**",
+         "invalid upper boundary! Must be a double are the key word 'none'",
+         QMessageBox::Ok, QMessageBox::NoButton);
+      return;
+    } else {
+      param += str;
+      if (str.length() < 10)
+        param += spaces.fill(' ', 10-str.length());
+      else
+        param += " ";
+    }
+  }
+
+//  param += "\n";
+
+  // write parameter string into fParam_textEdit
+  fParam_plainTextEdit->appendPlainText(param);
+
+  // increment No counter in spinBox
+  fParamNo_spinBox->stepUp();
+
+  // reset name lineEdit
+  fName_lineEdit->setText("");
+
+  // reset value lineEdit
+  fValue_lineEdit->setText("");
+
+  // reset step lineEdit
+  fStep_lineEdit->setText("");
+
+  // reset lower boundary lineEdit
+  fLower_lineEdit->setText("none");
+
+  // reset upper boundary lineEdit
+  fUpper_lineEdit->setText("none");
+
+  fName_lineEdit->setFocus();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Generates a help content window showing the description of the FITPARAMETER block.
+ */
+void PGetParameterBlockDialog::helpContent()
+{
+  if (fHelpUrl.isEmpty()) {
+    QMessageBox::information(this, "**INFO**", "Will eventually show a help window");
+  } else {
+    bool ok = QDesktopServices::openUrl(QUrl(fHelpUrl, QUrl::TolerantMode));
+    if (!ok) {
+      QString msg = QString("<p>Sorry: Couldn't open default web-browser for the help.<br>Please try: <a href=\"%1\">musrfit docu</a> in your web-browser.").arg(fHelpUrl);
+      QMessageBox::critical( nullptr,
+                             tr("Fatal Error"),
+                             msg,
+                             tr("Quit") );
+    }
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+// END
+//----------------------------------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PGetParameterBlockDialog.h b/src/musredit_qt6/musredit/PGetParameterBlockDialog.h
new file mode 100644
index 00000000..6e235bef
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetParameterBlockDialog.h
@@ -0,0 +1,59 @@
+/****************************************************************************
+
+  PGetParameterBlockDialog.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PGETPARAMETERBLOCKDIALOG_H_
+#define _PGETPARAMETERBLOCKDIALOG_H_
+
+#include "ui_PGetParameterBlockDialog.h"
+
+//-----------------------------------------------------------------------------------
+/**
+ * <p>Handles the content of the PARAMETER block dialog.
+ */
+class PGetParameterBlockDialog : public QDialog, private Ui::PGetParameterBlockDialog
+{
+  Q_OBJECT
+
+  public:
+    PGetParameterBlockDialog(const QString helpUrl);
+
+    QString getParams() { return fParam_plainTextEdit->toPlainText(); }
+
+  protected:
+    bool eventFilter( QObject *obj, QEvent *ev );
+
+  private slots:
+    void paramAdd();
+    void helpContent();
+
+  private:
+    QString fHelpUrl; ///< help url of the PARAMETER block description.
+};
+
+#endif // _PGETPARAMETERBLOCKDIALOG_H_
diff --git a/src/musredit_qt6/musredit/PGetPlotBlockDialog.cpp b/src/musredit_qt6/musredit/PGetPlotBlockDialog.cpp
new file mode 100644
index 00000000..128f3a64
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetPlotBlockDialog.cpp
@@ -0,0 +1,203 @@
+/****************************************************************************
+
+  PGetPlotBlockDialog.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QLineEdit>
+#include <QValidator>
+#include <QMessageBox>
+#include <QSpinBox>
+#include <QTextEdit>
+#include <QComboBox>
+#include <QDesktopServices>
+#include <QUrl>
+
+#include "PGetPlotBlockDialog.h"
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Constructor.
+ *
+ * \param helpUrl help url for the PLOT block.
+ */
+PGetPlotBlockDialog::PGetPlotBlockDialog(const QString helpUrl) : fHelpUrl(helpUrl)
+{
+  setupUi(this);
+
+  setModal(true);
+
+  // setup event filter
+  installEventFilter(this);
+
+  fXRangeLow_lineEdit->setValidator( new QDoubleValidator(fXRangeLow_lineEdit) );
+  fXRangeUp_lineEdit->setValidator( new QDoubleValidator(fXRangeUp_lineEdit) );
+  fYRangeLow_lineEdit->setValidator( new QDoubleValidator(fYRangeLow_lineEdit) );
+  fYRangeUp_lineEdit->setValidator( new QDoubleValidator(fYRangeUp_lineEdit) );
+
+  fPlot_plainTextEdit->setFont(QFont("Courier", 10));
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Extracts the information of the top part of the dialog, constructs a msr-file PLOT block and
+ * writes it into the text edit window.
+ */
+void PGetPlotBlockDialog::addPlot()
+{
+  QString param = "";
+  QString str = "";
+  QString spaces;
+
+  // add begining of plot block if fPlot_plainTextEdit is still empty
+  if (fPlot_plainTextEdit->toPlainText().isEmpty()) {
+    param = "###############################################################\n";
+  }
+
+  // write type
+  param += "PLOT ";
+  if (fType_comboBox->currentText() == "Single Histo") {
+    param += "0   (single histo plot)\n";
+  } else if (fType_comboBox->currentText() == "Asymmetry") {
+    param += "2   (asymmetry plot)\n";
+  } else if (fType_comboBox->currentText() == "MuMinus") {
+    param += "4   (mu minus plot)\n";
+  } else if (fType_comboBox->currentText() == "NonMusr") {
+    param += "8   (non muSR plot)\n";
+  }
+
+  // write runs
+  param += "runs     " + fRunList_lineEdit->text() + "\n";
+
+  // write range
+  param += "range    ";
+  // lower x-/time range
+  str = fXRangeLow_lineEdit->text();
+  if (str.isEmpty()) {
+    QMessageBox::critical(this, "**ERROR**",
+       "empty lower time-/x-range name not allowed!",
+       QMessageBox::Ok, QMessageBox::NoButton);
+    return;
+  }
+  param += str;
+  if (str.length() < 8)
+    param += spaces.fill(' ', 8 - str.length());
+  else
+    param += " ";
+
+  // upper x-/time range
+  str = fXRangeUp_lineEdit->text();
+  if (str.isEmpty()) {
+    QMessageBox::critical(this, "**ERROR**",
+       "empty upper time-/x-range name not allowed!",
+       QMessageBox::Ok, QMessageBox::NoButton);
+    return;
+  }
+  param += str;
+  if (str.length() < 8)
+    param += spaces.fill(' ', 8 - str.length());
+  else
+    param += " ";
+
+  // check y-range: either none given or both
+  if ((fYRangeLow_lineEdit->text().isEmpty() && !fYRangeUp_lineEdit->text().isEmpty()) ||
+      (!fYRangeLow_lineEdit->text().isEmpty() && fYRangeUp_lineEdit->text().isEmpty())) {
+      QMessageBox::critical(this, "**ERROR**",
+         "Only fully empty y-range, or give lower AND upper y-range is acceptable!\n Will ignore the y-range",
+         QMessageBox::Ok, QMessageBox::NoButton);
+  } else if (!fYRangeLow_lineEdit->text().isEmpty() && !fYRangeUp_lineEdit->text().isEmpty()) {
+      str = fYRangeLow_lineEdit->text();
+      param += str;
+      if (str.length() < 8)
+        param += spaces.fill(' ', 8 - str.length());
+      else
+        param += " ";
+      param += fYRangeUp_lineEdit->text() + "\n";
+  } else {
+    param += "\n";
+  }
+  param += "\n";
+
+  fPlot_plainTextEdit->appendPlainText(param);
+
+  // clean input
+  fRunList_lineEdit->clear();
+  fXRangeLow_lineEdit->clear();
+  fXRangeUp_lineEdit->clear();
+  fYRangeLow_lineEdit->clear();
+  fYRangeUp_lineEdit->clear();
+  fRunList_lineEdit->setFocus();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Generates a help content window showing the description of the PLOT block.
+ */
+void PGetPlotBlockDialog::helpContent()
+{
+  if (fHelpUrl.isEmpty()) {
+    QMessageBox::information(this, "**INFO**", "Will eventually show a help window");
+  } else {
+    bool ok = QDesktopServices::openUrl(QUrl(fHelpUrl, QUrl::TolerantMode));
+    if (!ok) {
+      QString msg = QString("<p>Sorry: Couldn't open default web-browser for the help.<br>Please try: <a href=\"%1\">musrfit docu</a> in your web-browser.").arg(fHelpUrl);
+      QMessageBox::critical( nullptr,
+                             tr("Fatal Error"),
+                             msg,
+                             tr("Quit") );
+    }
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>This event filter is filtering out the return key, and if present adds the current plot.
+ *
+ * \param obj object which is triggering the event
+ * \param ev the triggered event
+ */
+bool PGetPlotBlockDialog::eventFilter( QObject *obj, QEvent *ev )
+{
+  if (obj == this) {
+    if (ev->type() == QEvent::KeyPress) {
+      QKeyEvent *k = (QKeyEvent*)ev;
+      if (k->key() == Qt::Key_Return) {
+        addPlot();
+        return true;
+      } else {
+        return false;
+      }
+    } else {
+      return false;
+    }
+  } else {
+    return false;
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+// END
+//----------------------------------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PGetPlotBlockDialog.h b/src/musredit_qt6/musredit/PGetPlotBlockDialog.h
new file mode 100644
index 00000000..ba545cb9
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetPlotBlockDialog.h
@@ -0,0 +1,59 @@
+/****************************************************************************
+
+  PGetPlotBlockDialog.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PGETPLOTBLOCKDIALOG_H_
+#define _PGETPLOTBLOCKDIALOG_H_
+
+#include "ui_PGetPlotBlockDialog.h"
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Handels content of the PLOT block dialog.
+ */
+class PGetPlotBlockDialog : public QDialog, private Ui::PGetPlotBlockDialog
+{
+  Q_OBJECT
+
+  public:
+    PGetPlotBlockDialog(const QString helpUrl);
+
+    QString getPlotBlock() { return fPlot_plainTextEdit->toPlainText(); }
+
+  public slots:
+    void addPlot();
+    void helpContent();
+
+  protected:
+    bool eventFilter( QObject *obj, QEvent *ev );
+
+  private:
+    QString fHelpUrl; ///< help url for the PLOT block
+};
+
+#endif // _PGETPLOTBLOCKDIALOG_H_
diff --git a/src/musredit_qt6/musredit/PGetSingleHistoRunBlockDialog.cpp b/src/musredit_qt6/musredit/PGetSingleHistoRunBlockDialog.cpp
new file mode 100644
index 00000000..54a65a98
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetSingleHistoRunBlockDialog.cpp
@@ -0,0 +1,299 @@
+/****************************************************************************
+
+  PGetSingleHistoRunBlockDialog.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QLineEdit>
+#include <QValidator>
+#include <QComboBox>
+#include <QCheckBox>
+#include <QMessageBox>
+#include <QDesktopServices>
+#include <QUrl>
+
+#include "PGetSingleHistoRunBlockDialog.h"
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Constructor.
+ *
+ * \param helpUrl help url for the asymmetry run block
+ * \param lifetimeCorrection flag indicating if lifetime correction shall be enabled.
+ */
+PGetSingleHistoRunBlockDialog::PGetSingleHistoRunBlockDialog(const QString helpUrl,
+                                                             const bool lifetimeCorrection) : fHelpUrl(helpUrl)
+{
+  setupUi(this);
+
+  setModal(true);
+
+  fForwardHistoNo_lineEdit->setValidator( new QIntValidator(fForwardHistoNo_lineEdit) );
+  fNorm_lineEdit->setValidator( new QIntValidator(fNorm_lineEdit) );
+  fDataStart_lineEdit->setValidator( new QIntValidator(fDataStart_lineEdit) );
+  fDataEnd_lineEdit->setValidator( new QIntValidator(fDataEnd_lineEdit) );
+  fBackgroundFix_lineEdit->setValidator( new QDoubleValidator(fBackgroundFix_lineEdit) );
+  fBackgroundFit_lineEdit->setValidator( new QIntValidator(fBackgroundFit_lineEdit) );
+  fBackgroundStart_lineEdit->setValidator( new QIntValidator(fBackgroundStart_lineEdit) );
+  fBackgroundEnd_lineEdit->setValidator( new QIntValidator(fBackgroundEnd_lineEdit) );
+  fFitRangeStart_lineEdit->setValidator( new QDoubleValidator(fFitRangeStart_lineEdit) );
+  fFitRangeEnd_lineEdit->setValidator( new QDoubleValidator(fFitRangeEnd_lineEdit) );
+  fPacking_lineEdit->setValidator( new QIntValidator(fPacking_lineEdit) );
+  fT0_lineEdit->setValidator( new QIntValidator(fT0_lineEdit) );
+  fLifetime_lineEdit->setValidator( new QIntValidator(fLifetime_lineEdit) );
+  fLifetimeCorrection_checkBox->setChecked(lifetimeCorrection);
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns the run information line of the single histogram run block.
+ */
+QString PGetSingleHistoRunBlockDialog::getRunHeaderInfo()
+{
+  QString str="";
+
+  str  = "RUN " + fRunFileName_lineEdit->text() + " ";
+  str += fBeamline_lineEdit->text().toUpper() + " ";
+  str += fInstitute_comboBox->currentText() + " ";
+  str += fFileFormat_comboBox->currentText() + "   (name beamline institute data-file-format)\n";
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns the map for the single histogram run block.
+ *
+ * \param valid flag indicating if the map is potentially valid.
+ */
+QString PGetSingleHistoRunBlockDialog::getMap(bool &valid)
+{
+  QString str = fMap_lineEdit->text().trimmed().remove(" ");
+
+  // check if potentially proper map line
+  for (int i=0; i<str.length(); i++) {
+    if (!str[i].isDigit()) {
+      valid = false;
+      break;
+    }
+  }
+
+  str = "map             " + fMap_lineEdit->text() + "\n";
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns a data range (in bins) entry for the single histogram run block.
+ *
+ * \param valid flag indicating if the data entries are valid.
+ */
+QString PGetSingleHistoRunBlockDialog::getData(bool &valid)
+{
+  QString str="";
+
+  if (fDataStart_lineEdit->text().isEmpty() || fDataEnd_lineEdit->text().isEmpty()) {
+    valid = false;
+  } else {
+    str  = "data            ";
+    str += fDataStart_lineEdit->text() + "   ";
+    str += fDataEnd_lineEdit->text() + "\n";
+    valid = true;
+  }
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns the background information for the single histogram run block.
+ *
+ * \param valid flag indicating if a valid background (either backgr.fix, background, or backgr.fit is given, but only one)
+ * is present.
+ */
+QString PGetSingleHistoRunBlockDialog::getBackground(bool &valid)
+{
+  QString str="";
+
+  valid = true;
+
+  // check that either backgr.fix or background is given, but not both
+  if (fBackgroundStart_lineEdit->text().isEmpty() && fBackgroundEnd_lineEdit->text().isEmpty() &&
+      fBackgroundFix_lineEdit->text().isEmpty() &&
+      fBackgroundFit_lineEdit->text().isEmpty()) {
+    valid = false;
+    str = "background      0  10\n";
+  } else {
+    if (!fBackgroundStart_lineEdit->text().isEmpty()) { // assume the rest is given, not fool prove but ...
+      str  = "background      ";
+      str += fBackgroundStart_lineEdit->text() + "   ";
+      str += fBackgroundEnd_lineEdit->text() + "\n";
+    }
+    if (!fBackgroundFix_lineEdit->text().isEmpty()) {
+      str  = "backgr.fix      ";
+      str += fBackgroundFix_lineEdit->text() + "\n";
+    }
+    if (!fBackgroundFit_lineEdit->text().isEmpty()) {
+      str  = "backgr.fit      ";
+      str += fBackgroundFit_lineEdit->text() + "\n";
+    }
+  }
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns a fit range entry for the single histogram run block. If no fit range has been provided,
+ * a fit range [0,10] will be set and the valid flag will be set to false.
+ *
+ * \param valid flag indicating if a fit range was provided.
+ */
+QString PGetSingleHistoRunBlockDialog::getFitRange(bool &valid)
+{
+  QString str="";
+
+  if (fFitRangeStart_lineEdit->text().isEmpty() || fFitRangeEnd_lineEdit->text().isEmpty()) {
+    str += "fit             0.0   10.0\n";
+    valid = false;
+  } else {
+    str += "fit             ";
+    str += fFitRangeStart_lineEdit->text() + "   ";
+    str += fFitRangeEnd_lineEdit->text() + "\n";
+    valid = true;
+  }
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns the packing/binning of the single histogram run block. If no packing has been provided,
+ * a packing of '1' will be set and the present flag will be set to false.
+ *
+ * \param present flag indicating if a packing parameter was provided.
+ */
+QString PGetSingleHistoRunBlockDialog::getPacking(bool &present)
+{
+  QString str="";
+
+  if (fPacking_lineEdit->text().isEmpty()) {
+    present = false;
+    str += "packing         1\n";
+  } else {
+    present = true;
+    str += "packing         " + fPacking_lineEdit->text() + "\n\n";
+  }
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns a t0 parameter for the single histogram run block.
+ *
+ * \param present flag indicating if a t0 parameter is set.
+ */
+QString PGetSingleHistoRunBlockDialog::getT0(bool &present)
+{
+  QString str="";
+
+  if (!fT0_lineEdit->text().isEmpty()) {
+    str  = "t0              ";
+    str += fT0_lineEdit->text() + "\n";
+    present = true;
+  } else {
+    present = false;
+  }
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns the muon lifetime parameter if present.
+ *
+ * \param present flag indicating if a muon life time parameter has been present.
+ */
+QString PGetSingleHistoRunBlockDialog::getMuonLifetimeParam(bool &present)
+{
+  QString str="";
+
+  if (!fLifetime_lineEdit->text().isEmpty()) {
+    str  = "lifetime        ";
+    str += fLifetime_lineEdit->text() + "\n";
+    present = true;
+  } else {
+    present = false;
+  }
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns the lifetime correction flag.
+ *
+ * \param present flag showing if the lifetime correction flag should be set.
+ */
+QString PGetSingleHistoRunBlockDialog::getLifetimeCorrection(bool &present)
+{
+  QString str="";
+
+  if (fLifetimeCorrection_checkBox->isChecked()) {
+    str = "lifetimecorrection\n";
+    present = true;
+  } else {
+    present = false;
+  }
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Generates a help content window showing the description of the single histogram run block.
+ */
+void PGetSingleHistoRunBlockDialog::helpContent()
+{
+  if (fHelpUrl.isEmpty()) {
+    QMessageBox::information(this, "**INFO**", "Will eventually show a help window");
+  } else {
+    bool ok = QDesktopServices::openUrl(QUrl(fHelpUrl, QUrl::TolerantMode));
+    if (!ok) {
+      QString msg = QString("<p>Sorry: Couldn't open default web-browser for the help.<br>Please try: <a href=\"%1\">musrfit docu</a> in your web-browser.").arg(fHelpUrl);
+      QMessageBox::critical( nullptr,
+                             tr("Fatal Error"),
+                             msg,
+                             tr("Quit") );
+    }
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+// END
+//----------------------------------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PGetSingleHistoRunBlockDialog.h b/src/musredit_qt6/musredit/PGetSingleHistoRunBlockDialog.h
new file mode 100644
index 00000000..5b2701a3
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetSingleHistoRunBlockDialog.h
@@ -0,0 +1,68 @@
+/****************************************************************************
+
+  PGetSingleHistoRunBlockDialog.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PGETSINGLEHISTORUNBLOCKDIALOG_H_
+#define _PGETSINGLEHISTORUNBLOCKDIALOG_H_
+
+#include <QString>
+#include <QLineEdit>
+
+#include "ui_PGetSingleHistoRunBlockDialog.h"
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Class handling the content of the menu: Edit/Add Block/Single Histo Run Block.
+ */
+class PGetSingleHistoRunBlockDialog : public QDialog, private Ui::PGetSingleHistoRunBlockDialog
+{
+  Q_OBJECT
+
+  public:
+    PGetSingleHistoRunBlockDialog(const QString helpUrl = "", const bool lifetimeCorrection = true);
+
+    QString getRunHeaderInfo();
+    QString getMap(bool &valid);
+    QString getForward() { return QString("forward         " + fForwardHistoNo_lineEdit->text() + "\n"); }
+    QString getNorm() { return QString("norm            " + fNorm_lineEdit->text() + "\n"); }
+    QString getData(bool &valid);
+    QString getBackground(bool &valid);
+    QString getFitRange(bool &valid);
+    QString getPacking(bool &present);
+    QString getT0(bool &present);
+    QString getMuonLifetimeParam(bool &present);
+    QString getLifetimeCorrection(bool &present);
+
+  private slots:
+    void helpContent();
+
+  private:
+    QString fHelpUrl; ///< help url for the asymmetry run block
+};
+
+#endif // _PGETSINGLEHISTORUNBLOCKDIALOG_H_
diff --git a/src/musredit_qt6/musredit/PGetTheoryBlockDialog.cpp b/src/musredit_qt6/musredit/PGetTheoryBlockDialog.cpp
new file mode 100644
index 00000000..d6bf5f3b
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetTheoryBlockDialog.cpp
@@ -0,0 +1,143 @@
+/****************************************************************************
+
+  PGetTheoryBlockDialog.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QMessageBox>
+#include <QTextEdit>
+#include <QComboBox>
+#include <QPixmap>
+#include <QImage>
+#include <QDesktopServices>
+#include <QUrl>
+
+#include <QtDebug>
+
+#include "PGetTheoryBlockDialog.h"
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Constructor.
+ *
+ * \param admin pointer to the administration class object needed to extract the default theory set informations.
+ * \param helpUrl help url for the asymmetry run block
+ */
+PGetTheoryBlockDialog::PGetTheoryBlockDialog(PAdmin *admin, const QString helpUrl) :
+              fAdmin(admin),
+              fHelpUrl(helpUrl)
+{
+  setupUi(this);
+
+  setModal(true);
+
+  // feed theory function combo box
+  fTheoryFunction_comboBox->setIconSize(QSize(250, 20));
+  PTheory *theoItem;
+  QIcon *icon;
+  QString iconName;
+  for (unsigned int i=0; i<fAdmin->getTheoryCounts();  i++) {
+    theoItem = fAdmin->getTheoryItem(i);
+    if (theoItem->pixmapName.length() > 0) {
+      iconName = QString(":/latex_images/") + theoItem->pixmapName;      
+      icon = new QIcon(QPixmap(iconName));
+      fTheoryFunction_comboBox->insertItem(i, *icon, theoItem->label);
+    } else {
+      fTheoryFunction_comboBox->insertItem(i, theoItem->label);
+    }
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns the theory function string of the currently selected theory function.
+ */
+QString PGetTheoryBlockDialog::getTheoFuncString()
+{
+  QString str = "????";
+  int idx = fTheoryFunction_comboBox->currentIndex();
+  PTheory *theoItem = fAdmin->getTheoryItem(idx);
+  if (theoItem == 0)
+    return str;
+
+  // add theory function name
+  str = theoItem->name + "   ";
+  if (theoItem->name == "userFcn") {
+    str += "libMyLibrary.so  TMyFunction  ";
+  }
+  // add pseudo parameters
+  for (int i=0; i<theoItem->params; i++) {
+    str += QString("%1").arg(i+1) + "   ";
+  }
+  // add comment
+  str += theoItem->comment;
+
+  return str;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>adds the current theory function to the text field and additionally adds a '+'.
+ */
+void PGetTheoryBlockDialog::addPlus()
+{
+  QString str = getTheoFuncString() + "\n+";
+  fTheoryBlock_plainTextEdit->appendPlainText(str);
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>adds the current theory function to the text field (newline == '*').
+ */
+void PGetTheoryBlockDialog::addMultiply()
+{
+  QString str = getTheoFuncString();
+  fTheoryBlock_plainTextEdit->appendPlainText(str);
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Generates a help content window showing the description of the theory block.
+ */
+void PGetTheoryBlockDialog::helpContent()
+{
+  if (fHelpUrl.isEmpty()) {
+    QMessageBox::information(this, "**INFO**", "Will eventually show a help window");
+  } else {
+    bool ok = QDesktopServices::openUrl(QUrl(fHelpUrl, QUrl::TolerantMode));
+    if (!ok) {
+      QString msg = QString("<p>Sorry: Couldn't open default web-browser for the help.<br>Please try: <a href=\"%1\">musrfit docu</a> in your web-browser.").arg(fHelpUrl);
+      QMessageBox::critical( nullptr,
+                             tr("Fatal Error"),
+                             msg,
+                             tr("Quit") );
+    }
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+// END
+//----------------------------------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PGetTheoryBlockDialog.h b/src/musredit_qt6/musredit/PGetTheoryBlockDialog.h
new file mode 100644
index 00000000..f6d3c2d8
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetTheoryBlockDialog.h
@@ -0,0 +1,60 @@
+/****************************************************************************
+
+  PGetTheoryBlockDialog.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PGETTHEORYBLOCKDIALOG_H_
+#define _PGETTHEORYBLOCKDIALOG_H_
+
+#include "PAdmin.h"
+#include "ui_PGetTheoryBlockDialog.h"
+
+//-----------------------------------------------------------------------------
+/**
+ * <p>Class handling the content of the menu: Edit/Add Block/Theory Block.
+ */
+class PGetTheoryBlockDialog : public QDialog, private Ui::PGetTheoryBlockDialog
+{
+  Q_OBJECT
+
+  public:
+    PGetTheoryBlockDialog(PAdmin *admin = 0, const QString helpUrl = "");
+
+    QString getTheoryBlock() { return fTheoryBlock_plainTextEdit->toPlainText(); }
+
+  private slots:
+    QString getTheoFuncString();
+    void addPlus();
+    void addMultiply();
+    void helpContent();
+
+  private:
+    PAdmin *fAdmin;   ///< pointer to the administration class object needed to extract the default theory set informations.
+    QString fHelpUrl; ///< help url for the asymmetry run block
+};
+
+#endif // _PGETTHEORYBLOCKDIALOG_H_
diff --git a/src/musredit_qt6/musredit/PGetTitleBlockDialog.cpp b/src/musredit_qt6/musredit/PGetTitleBlockDialog.cpp
new file mode 100644
index 00000000..22ae3675
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetTitleBlockDialog.cpp
@@ -0,0 +1,71 @@
+/****************************************************************************
+
+  PGetTitleBlockDialog.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QMessageBox>
+#include <QDesktopServices>
+#include <QUrl>
+
+#include "PGetTitleBlockDialog.h"
+
+//---------------------------------------------------------------------------
+/**
+ * <p>Constructor.
+ *
+ * \param helpUrl help url for the title.
+ */
+PGetTitleBlockDialog::PGetTitleBlockDialog(const QString helpUrl) : fHelpUrl(helpUrl)
+{
+  setupUi(this);
+
+  setModal(true);
+}
+
+//---------------------------------------------------------------------------
+/**
+ * <p>Generates a help content window showing the description of title block.
+ */
+void PGetTitleBlockDialog::helpContent()
+{
+  if (fHelpUrl.isEmpty()) {
+    QMessageBox::information(this, "**INFO**", "Will eventually show a help window");
+  } else {
+    bool ok = QDesktopServices::openUrl(QUrl(fHelpUrl, QUrl::TolerantMode));
+    if (!ok) {
+      QString msg = QString("<p>Sorry: Couldn't open default web-browser for the help.<br>Please try: <a href=\"%1\">musrfit docu</a> in your web-browser.").arg(fHelpUrl);
+      QMessageBox::critical( nullptr,
+                             tr("Fatal Error"),
+                             msg,
+                             tr("Quit") );
+    }
+  }
+}
+
+//---------------------------------------------------------------------------
+// END
+//---------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PGetTitleBlockDialog.h b/src/musredit_qt6/musredit/PGetTitleBlockDialog.h
new file mode 100644
index 00000000..e9eb1853
--- /dev/null
+++ b/src/musredit_qt6/musredit/PGetTitleBlockDialog.h
@@ -0,0 +1,57 @@
+/****************************************************************************
+
+  PGetTitleBlockDialog.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PGETTITLEBLOCKDIALOG_H_
+#define _PGETTITLEBLOCKDIALOG_H_
+
+#include "musredit.h"
+#include "ui_PGetTitleBlockDialog.h"
+
+//--------------------------------------------------------------------------
+/**
+ * <p>Class handling the content of the menu: Edit/Add Block/Title Block.
+ */
+class PGetTitleBlockDialog : public QDialog, private Ui::PGetTitleBlockDialog
+{
+  Q_OBJECT
+
+  public:
+    PGetTitleBlockDialog(const QString helpUrl);
+    virtual ~PGetTitleBlockDialog() {}
+
+    QString getTitle() { return fTitle_lineEdit->text(); }
+
+  private slots:
+    void helpContent();
+
+  private:
+    QString fHelpUrl; ///< help url for the asymmetry run block
+};
+
+#endif // _PGETTITLEBLOCKDIALOG_H_
diff --git a/src/musredit_qt6/musredit/PMsr2DataDialog.cpp b/src/musredit_qt6/musredit/PMsr2DataDialog.cpp
new file mode 100644
index 00000000..45785f6a
--- /dev/null
+++ b/src/musredit_qt6/musredit/PMsr2DataDialog.cpp
@@ -0,0 +1,268 @@
+/****************************************************************************
+
+  PMsr2DataDialog.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QLineEdit>
+#include <QValidator>
+#include <QMessageBox>
+#include <QTextEdit>
+#include <QCheckBox>
+#include <QDesktopServices>
+#include <QUrl>
+
+#include "PMsr2DataDialog.h"
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Constructor.
+ *
+ * \param msr2DataParam data structure keeping the necessary information to feed msr2data
+ * \param helpUrl help url for msr2data
+ */
+PMsr2DataDialog::PMsr2DataDialog(PMsr2DataParam *msr2DataParam, const QString helpUrl) : fMsr2DataParam(msr2DataParam), fHelpUrl(helpUrl)
+{
+  setupUi(this);
+
+  setModal(true);
+
+  QString str;
+
+  fRunTag = -1;
+
+  if (!fMsr2DataParam->runListFileName.isEmpty()) {
+    fRunListFileName_lineEdit->setText(fMsr2DataParam->runListFileName);
+  }
+
+  if (!fMsr2DataParam->runList.isEmpty()) {
+    fRunList_lineEdit->setText(fMsr2DataParam->runList);
+  }
+
+  if (!fMsr2DataParam->msrFileExtension.isEmpty()) {
+    fMsrFileExtension_lineEdit->setText(fMsr2DataParam->msrFileExtension);
+  }
+
+  fTemplateRunNumber_lineEdit->setValidator( new QIntValidator(fTemplateRunNumber_lineEdit) );
+  if (fMsr2DataParam->templateRunNo != -1) {
+    str = QString("%1").arg(fMsr2DataParam->templateRunNo);
+    fTemplateRunNumber_lineEdit->setText(str);
+  }
+
+  if (!fMsr2DataParam->dbOutputFileName.isEmpty()) {
+    fDataOutputFileName_lineEdit->setText(fMsr2DataParam->dbOutputFileName);
+  }
+
+  if (!fMsr2DataParam->paramList.isEmpty()) {
+    fParamList_lineEdit->setText(fMsr2DataParam->paramList);
+  }
+
+  fWriteDataHeader_checkBox->setChecked(fMsr2DataParam->writeDbHeader);
+  fIgnoreDataHeaderInfo_checkBox->setChecked(fMsr2DataParam->ignoreDataHeaderInfo);
+  fKeepMinuit2Output_checkBox->setChecked(fMsr2DataParam->keepMinuit2Output);
+  fEstimateN0_checkBox->setChecked(fMsr2DataParam->estimateN0);
+  fWriteColumnData_checkBox->setChecked(fMsr2DataParam->writeColumnData);
+  fRecreateDataFile_checkBox->setChecked(fMsr2DataParam->recreateDbFile);
+  fChainFit_checkBox->setChecked(fMsr2DataParam->chainFit);
+  fOpenFilesAfterFitting_checkBox->setChecked(fMsr2DataParam->openFilesAfterFitting);
+  fWritePerRunBlockChisq_checkBox->setChecked(fMsr2DataParam->perRunBlockChisq);
+  fTitleFromData_checkBox->setChecked(fMsr2DataParam->titleFromDataFile);
+  fCreateMsrFileOnly_checkBox->setChecked(fMsr2DataParam->createMsrFileOnly);
+  fFitOnly_checkBox->setChecked(fMsr2DataParam->fitOnly);
+  fGlobal_checkBox->setChecked(fMsr2DataParam->global);
+  fGlobalPlus_checkBox->setChecked(fMsr2DataParam->globalPlus);
+
+  fOk_pushButton->setDefault(true);
+
+  connect(fGlobal_checkBox, SIGNAL(clicked(bool)), this, SLOT(globalOptionSet(bool)));
+  connect(fGlobalPlus_checkBox, SIGNAL(clicked(bool)), this, SLOT(globalPlusOptionSet(bool)));
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns the msr2data relavant parameters from the GUI.
+ */
+PMsr2DataParam* PMsr2DataDialog::getMsr2DataParam()
+{
+  fMsr2DataParam->runList  = fRunList_lineEdit->text();
+  fMsr2DataParam->runListFileName = fRunListFileName_lineEdit->text();
+  fMsr2DataParam->msrFileExtension = fMsrFileExtension_lineEdit->text();
+  if (fTemplateRunNumber_lineEdit->text().isEmpty()) {
+    fMsr2DataParam->templateRunNo = -1;
+  } else {
+    fMsr2DataParam->templateRunNo = fTemplateRunNumber_lineEdit->text().toInt();
+  }
+  fMsr2DataParam->paramList = fParamList_lineEdit->text();
+  fMsr2DataParam->dbOutputFileName = fDataOutputFileName_lineEdit->text();
+  fMsr2DataParam->writeDbHeader = fWriteDataHeader_checkBox->isChecked();
+  fMsr2DataParam->ignoreDataHeaderInfo = fIgnoreDataHeaderInfo_checkBox->isChecked();
+  fMsr2DataParam->keepMinuit2Output = fKeepMinuit2Output_checkBox->isChecked();
+  fMsr2DataParam->estimateN0 = fEstimateN0_checkBox->isChecked();
+  fMsr2DataParam->writeColumnData = fWriteColumnData_checkBox->isChecked();
+  fMsr2DataParam->recreateDbFile = fRecreateDataFile_checkBox->isChecked();
+  fMsr2DataParam->chainFit = fChainFit_checkBox->isChecked();
+  fMsr2DataParam->openFilesAfterFitting = fOpenFilesAfterFitting_checkBox->isChecked();
+  fMsr2DataParam->perRunBlockChisq = fWritePerRunBlockChisq_checkBox->isChecked();
+  fMsr2DataParam->titleFromDataFile = fTitleFromData_checkBox->isChecked();
+  fMsr2DataParam->createMsrFileOnly = fCreateMsrFileOnly_checkBox->isChecked();
+  fMsr2DataParam->fitOnly = fFitOnly_checkBox->isChecked();
+  fMsr2DataParam->global = fGlobal_checkBox->isChecked();
+  fMsr2DataParam->globalPlus = fGlobalPlus_checkBox->isChecked();
+
+  return fMsr2DataParam;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT: called when in the 'Run List Input', the 'Run List' text field is activated. It clears any
+ * entries in 'First', 'Last', and 'Run List File Name'. It furthermore sets the run tag.
+ *
+ * \param str string content of the QTextEdit field.
+ */
+void PMsr2DataDialog::runListEntered(const QString &str)
+{
+  if (str.length() == 0)
+    return;
+
+  fRunTag = 0;
+
+  if (!fRunListFileName_lineEdit->text().isEmpty())
+    fRunListFileName_lineEdit->clear();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT: called when in the 'Run List Input', the 'Run List File Name' text field is activated. It clears any
+ * entries in 'First', 'Last', and 'Run List'. It furthermore sets the run tag.
+ *
+ * \param str string content of the QTextEdit field.
+ */
+void PMsr2DataDialog::runListFileNameEntered(const QString &str)
+{
+  if (str.length() == 0)
+    return;
+
+  fRunTag = 1;
+
+  if (!fRunList_lineEdit->text().isEmpty())
+    fRunList_lineEdit->clear();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT: called when in 'Template Run Input', the 'Template Run Number' text field is activated.
+ * It set at the same time the fit-only flag to false.
+ *
+ * \param str string content of the QTextEdit field.
+ */
+void PMsr2DataDialog::templateRunEntered(const QString &str)
+{
+  if (!str.isEmpty())
+    fFitOnly_checkBox->setChecked(false);
+  fTemplateRunNumber_lineEdit->setText(str);
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT: called when the 'Create msr-File only' QCheckBox under 'Options' is activated.
+ * Sets at the same time the fit-only flag to false.
+ *
+ * \param buttonState state of the button.
+ */
+void PMsr2DataDialog::createMsrFileOnlyChanged(int buttonState)
+{
+  if (buttonState == Qt::Checked) {
+    fFitOnly_checkBox->setChecked(false);
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT: called when the 'Fit Only' QCheckBox under 'Options' is activated.
+ * Sets at the same time the create-msr-file-only and global flags to false. Clears the 'Template Run Number'
+ * field.
+ *
+ * \param buttonState state of the button.
+ */
+void PMsr2DataDialog::fitOnlyChanged(int buttonState)
+{
+  if (buttonState == Qt::Checked) {
+    fCreateMsrFileOnly_checkBox->setChecked(false);
+    fTemplateRunNumber_lineEdit->clear();
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Generates a help content window showing the description for msr2data.
+ */
+void PMsr2DataDialog::helpContent()
+{
+    if (fHelpUrl.isEmpty()) {
+      QMessageBox::information(this, "**INFO**", "Will eventually show a help window");
+    } else {
+      bool ok = QDesktopServices::openUrl(QUrl(fHelpUrl, QUrl::TolerantMode));
+      if (!ok) {
+        QString msg = QString("<p>Sorry: Couldn't open default web-browser for the help.<br>Please try: <a href=\"%1\">musrfit docu</a> in your web-browser.").arg(fHelpUrl);
+        QMessageBox::critical( nullptr,
+                               tr("Fatal Error"),
+                               msg,
+                               tr("Quit") );
+      }
+    }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Unchecks global+ if global is checked since global/global+ are excluding options
+ *
+ * \param checked true, if the check-box is checked
+ */
+void PMsr2DataDialog::globalOptionSet(bool checked)
+{
+  if (checked) {
+    if (fGlobalPlus_checkBox->isChecked())
+      fGlobalPlus_checkBox->setChecked(false);
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Unchecks global if global+ is checked  since global/global+ are excluding options
+ *
+ * \param checked true, if the check-box is checked
+ */
+void PMsr2DataDialog::globalPlusOptionSet(bool checked)
+{
+  if (checked) {
+    if (fGlobal_checkBox->isChecked())
+      fGlobal_checkBox->setChecked(false);
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+// END
+//----------------------------------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PMsr2DataDialog.h b/src/musredit_qt6/musredit/PMsr2DataDialog.h
new file mode 100644
index 00000000..88a05959
--- /dev/null
+++ b/src/musredit_qt6/musredit/PMsr2DataDialog.h
@@ -0,0 +1,71 @@
+/****************************************************************************
+
+  PMsr2DataDialog.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PMSR2DATADIALOG_H_
+#define _PMSR2DATADIALOG_H_
+
+#include <QDialog>
+#include <QString>
+
+#include "musredit.h"
+#include "ui_PMsr2DataDialog.h"
+
+/**
+ * <p>Class handling the content of the MusrFit/Msr2Data GUI. It collects the input
+ * for B.M. Wojek's msr2data program.
+ */
+class PMsr2DataDialog : public QDialog, private Ui::PMsr2DataDialog
+{
+  Q_OBJECT
+
+  public:
+    PMsr2DataDialog(PMsr2DataParam *msr2DataParam, const QString helpUrl);
+
+    virtual int getRunTag() { return fRunTag; }
+    virtual PMsr2DataParam* getMsr2DataParam();
+
+  public slots:
+    void runListEntered(const QString&);
+    void runListFileNameEntered(const QString&);
+    void templateRunEntered(const QString&);
+    void createMsrFileOnlyChanged(int);
+    void fitOnlyChanged(int);
+    void helpContent();
+
+  private slots:
+    void globalOptionSet(bool checked);
+    void globalPlusOptionSet(bool checked);
+
+  private:
+    int fRunTag; ///< -1 = not valid, 0 = run list, 1 = run list file name
+    PMsr2DataParam *fMsr2DataParam; ///< data structure used to handle the necessary input for msr2data.
+    QString fHelpUrl; ///< help url for the Fourier block
+};
+
+#endif // _PMSR2DATADIALOG_H_
diff --git a/src/musredit_qt6/musredit/PMusrEditAbout.cpp b/src/musredit_qt6/musredit/PMusrEditAbout.cpp
new file mode 100644
index 00000000..16916f0a
--- /dev/null
+++ b/src/musredit_qt6/musredit/PMusrEditAbout.cpp
@@ -0,0 +1,49 @@
+/****************************************************************************
+
+  PMusrEditAbout.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include "git-revision.h"
+#include "PMusrEditAbout.h"
+
+//---------------------------------------------------------------------------
+/**
+ * <p>Handles the musredit about popup.
+ */
+PMusrEditAbout::PMusrEditAbout(QWidget *parent) : QDialog(parent)
+{
+  setupUi(this);
+
+  fGitBranch_label->setText(QString("git-branch: %1").arg(GIT_BRANCH));
+  fGitRev_label->setText(QString("git-rev: %1").arg(GIT_CURRENT_SHA1));
+
+  setModal(true);
+}
+
+//---------------------------------------------------------------------------
+// END
+//---------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PMusrEditAbout.h b/src/musredit_qt6/musredit/PMusrEditAbout.h
new file mode 100644
index 00000000..aaa5adf8
--- /dev/null
+++ b/src/musredit_qt6/musredit/PMusrEditAbout.h
@@ -0,0 +1,46 @@
+/****************************************************************************
+
+  PMusrEditAbout.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PMUSREDITABOUT_H_
+#define _PMUSREDITABOUT_H_
+
+#include "musredit.h"
+#include "ui_PMusrEditAbout.h"
+
+class PMusrEditAbout : public QDialog, private Ui::PMusrEditAbout
+{
+  Q_OBJECT
+
+  public:
+    PMusrEditAbout(QWidget *parent = nullptr);
+    virtual ~PMusrEditAbout() {}
+
+};
+
+#endif // _PMUSREDITABOUT_H_
diff --git a/src/musredit_qt6/musredit/PPrefsDialog.cpp b/src/musredit_qt6/musredit/PPrefsDialog.cpp
new file mode 100644
index 00000000..07a1e534
--- /dev/null
+++ b/src/musredit_qt6/musredit/PPrefsDialog.cpp
@@ -0,0 +1,143 @@
+/****************************************************************************
+
+  PPrefsDialog.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include "PChangeDefaultPathsDialog.h"
+#include "PPrefsDialog.h"
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Constructor.
+ *
+ * \param fAdmin keeps all the needed flags
+ */
+PPrefsDialog::PPrefsDialog(PAdmin *admin) : fAdmin(admin)
+{
+  if (!fAdmin)
+    return;
+
+  setupUi(this);
+
+  setModal(true);
+
+  if (fAdmin->getDarkThemeIconsMenuFlag()) {
+    fDarkThemeIconsMenu_checkBox->setCheckState(Qt::Checked);
+  } else {
+    fDarkThemeIconsMenu_checkBox->setCheckState(Qt::Unchecked);
+  }
+
+  if (fAdmin->getDarkThemeIconsToolbarFlag()) {
+    fDarkThemeIconsToolbar_checkBox->setCheckState(Qt::Checked);
+  } else {
+    fDarkThemeIconsToolbar_checkBox->setCheckState(Qt::Unchecked);
+  }
+
+  fKeepMn2Output_checkBox->setChecked(fAdmin->getKeepMinuit2OutputFlag());
+
+  if (fAdmin->getDumpAsciiFlag() && !fAdmin->getDumpRootFlag()) {
+    fDumpAscii_checkBox->setChecked(true);
+    fDumpRoot_checkBox->setChecked(false);
+  } else if (!fAdmin->getDumpAsciiFlag() && fAdmin->getDumpRootFlag()) {
+    fDumpAscii_checkBox->setChecked(false);
+    fDumpRoot_checkBox->setChecked(true);
+  } else {
+    fDumpAscii_checkBox->setChecked(false);
+    fDumpRoot_checkBox->setChecked(false);
+  }
+
+  fTitleFromData_checkBox->setChecked(fAdmin->getTitleFromDataFileFlag());
+  fEnableMusrT0_checkBox->setChecked(fAdmin->getEnableMusrT0Flag());
+  fPerRunBlockChisq_checkBox->setChecked(fAdmin->getChisqPerRunBlockFlag());
+  fEstimateN0_checkBox->setChecked(fAdmin->getEstimateN0Flag());
+  fFourier_checkBox->setChecked(fAdmin->getMusrviewShowFourierFlag());
+  fAvg_checkBox->setChecked(fAdmin->getMusrviewShowAvgFlag());
+  fOneToOne_checkBox->setChecked(fAdmin->getMusrviewShowOneToOneFlag());
+
+  fTimeout_lineEdit->setText(QString("%1").arg(fAdmin->getTimeout()));
+  fTimeout_lineEdit->setValidator(new QIntValidator(fTimeout_lineEdit));
+
+  QObject::connect(fDefaultPath_pushButton, SIGNAL(clicked()), this, SLOT(handleDefaultPaths()));
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns the dump flag (see the '--dump' option of musrfit). 0 == no dump, 1 == ascii dump, 2 == root dump
+ */
+int PPrefsDialog::getDump()
+{
+  int result = 0;
+
+  if (fDumpAscii_checkBox->isChecked())
+    result = 1;
+  else if (fDumpRoot_checkBox->isChecked())
+    result = 2;
+
+  return result;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT: called when the QCheckBox 'dump ascii' is selected. Will uncheck 'dump root' since these
+ * two options are mutually exclusive.
+ */
+void PPrefsDialog::dumpAscii()
+{
+  if (fDumpAscii_checkBox->isChecked())
+    fDumpRoot_checkBox->setChecked(false);
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT: called when the QCheckBox 'dump root' is selected. Will uncheck 'dump ascii' since these
+ * two options are mutually exclusive.
+ */
+void PPrefsDialog::dumpRoot()
+{
+  if (fDumpRoot_checkBox->isChecked())
+    fDumpAscii_checkBox->setChecked(false);
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ *<p>SLOT: called when the QPushButton 'Change Default Search Paths' is clicked. Will call a
+ * dialog which allows to deal with the default search paths to look for data files.
+ */
+void PPrefsDialog::handleDefaultPaths()
+{
+  PChangeDefaultPathsDialog *dlg = new PChangeDefaultPathsDialog();
+
+  if (dlg->exec() == QDialog::Accepted) {
+
+  }
+
+  delete dlg;
+}
+
+//----------------------------------------------------------------------------------------------------
+// END
+//----------------------------------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PPrefsDialog.h b/src/musredit_qt6/musredit/PPrefsDialog.h
new file mode 100644
index 00000000..63c3c270
--- /dev/null
+++ b/src/musredit_qt6/musredit/PPrefsDialog.h
@@ -0,0 +1,72 @@
+/****************************************************************************
+
+  PPrefsDialog.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PPREFSDIALOG_H_
+#define _PPREFSDIALOG_H_
+
+#include <QCheckBox>
+
+#include <PAdmin.h>
+
+#include "ui_PPrefsDialog.h"
+
+/**
+ * <p>Class handling the content of the MusrFit/Preferences.
+ */
+class PPrefsDialog : public QDialog, private Ui::PPrefsDialog
+{
+  Q_OBJECT
+
+  public:
+    PPrefsDialog(PAdmin *admin);
+
+    bool getMusrviewShowFourierFlag() { return fFourier_checkBox->isChecked(); }
+    bool getMusrviewShowAvgFlag()   { return fAvg_checkBox->isChecked(); }
+    bool getMusrviewShowOneToOneFlag() { return fOneToOne_checkBox->isChecked(); }
+    bool getKeepMinuit2OutputFlag() { return fKeepMn2Output_checkBox->isChecked(); }
+    bool getTitleFromDataFileFlag() { return fTitleFromData_checkBox->isChecked(); }
+    bool getEnableMusrT0Flag()      { return fEnableMusrT0_checkBox->isChecked(); }
+    bool getKeepRunPerBlockChisqFlag() { return fPerRunBlockChisq_checkBox->isChecked(); }
+    bool getEstimateN0Flag()        { return fEstimateN0_checkBox->isChecked(); }
+    bool getDarkThemeIconsMenuFlag()    { return fDarkThemeIconsMenu_checkBox->isChecked(); }
+    bool getDarkThemeIconsToolbarFlag()    { return fDarkThemeIconsToolbar_checkBox->isChecked(); }
+    bool getOneToOneFlag() { return fOneToOne_checkBox->isChecked(); }
+    int  getDump();
+    int  getTimeout() { return fTimeout_lineEdit->text().toInt(); }
+
+  public slots:
+    void dumpAscii();
+    void dumpRoot();
+    void handleDefaultPaths();
+
+  private:
+    PAdmin *fAdmin;
+};
+
+#endif // _PPREFSDIALOG_H_
diff --git a/src/musredit_qt6/musredit/PReplaceConfirmationDialog.cpp b/src/musredit_qt6/musredit/PReplaceConfirmationDialog.cpp
new file mode 100644
index 00000000..42e75973
--- /dev/null
+++ b/src/musredit_qt6/musredit/PReplaceConfirmationDialog.cpp
@@ -0,0 +1,44 @@
+/****************************************************************************
+
+  PReplaceConfirmationDialog.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include "PReplaceConfirmationDialog.h"
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Constructor.
+ *
+ * \param parent pointer to the parent object
+ * \param f qt windows flags
+ */
+PReplaceConfirmationDialog::PReplaceConfirmationDialog(QWidget *parent) : QDialog(parent)
+{
+  setupUi(this);
+
+  setModal(true);
+}
diff --git a/src/musredit_qt6/musredit/PReplaceConfirmationDialog.h b/src/musredit_qt6/musredit/PReplaceConfirmationDialog.h
new file mode 100644
index 00000000..c097c067
--- /dev/null
+++ b/src/musredit_qt6/musredit/PReplaceConfirmationDialog.h
@@ -0,0 +1,47 @@
+/****************************************************************************
+
+  PReplaceConfirmationDialog.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PREPLACECONFIRMATIONDIALOG_H_
+#define _PREPLACECONFIRMATIONDIALOG_H_
+
+#include <QDialog>
+#include <QWidget>
+
+#include "ui_PReplaceConfirmationDialog.h"
+
+class PReplaceConfirmationDialog : public QDialog, public Ui::PReplaceConfirmationDialog
+{
+  Q_OBJECT
+
+  public:
+    PReplaceConfirmationDialog(QWidget *parent = nullptr);
+    virtual ~PReplaceConfirmationDialog() {}
+};
+
+#endif // _PREPLACECONFIRMATIONDIALOG_H_
diff --git a/src/musredit_qt6/musredit/PReplaceDialog.cpp b/src/musredit_qt6/musredit/PReplaceDialog.cpp
new file mode 100644
index 00000000..bc095646
--- /dev/null
+++ b/src/musredit_qt6/musredit/PReplaceDialog.cpp
@@ -0,0 +1,109 @@
+/****************************************************************************
+
+  PReplaceDialog.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QPushButton>
+#include <QComboBox>
+#include <QCheckBox>
+
+#include "PReplaceDialog.h"
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Constructor.
+ *
+ * \param data find/replace data structure
+ * \param selection if true, find/replace only of the selection
+ * \param parent pointer to the parent object
+ * \param f qt windows flag
+ */
+PReplaceDialog::PReplaceDialog(PFindReplaceData *data, const bool selection, QWidget *parent) :
+    QDialog(parent), fData(data)
+{
+  setupUi(this);
+
+  setModal(true);
+
+  // if only empty text, disable find button
+  if (fData->findText == "") {
+    fReplace_pushButton->setEnabled(false);
+  }
+
+  // if there is no selection, disable that option
+  if (!selection) {
+    fSelectedText_checkBox->setChecked(false);
+    fSelectedText_checkBox->setEnabled(false);
+  }
+
+  fFind_comboBox->setItemText(0, fData->findText);
+  fReplacementText_comboBox->setItemText(0, fData->replaceText);
+  fCaseSensitive_checkBox->setChecked(fData->caseSensitive);
+  fWholeWordsOnly_checkBox->setChecked(fData->wholeWordsOnly);
+  fFromCursor_checkBox->setChecked(fData->fromCursor);
+  fFindBackwards_checkBox->setChecked(fData->findBackwards);
+  fPromptOnReplace_checkBox->setChecked(fData->promptOnReplace);
+
+  if (selection) {
+    fSelectedText_checkBox->setChecked(fData->selectedText);
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns the pointer to the find/replace data structure which is updated from the GUI content.
+ */
+PFindReplaceData* PReplaceDialog::getData()
+{
+  fData->findText = fFind_comboBox->currentText();
+  fData->replaceText = fReplacementText_comboBox->currentText();
+  fData->caseSensitive = fCaseSensitive_checkBox->isChecked();
+  fData->wholeWordsOnly = fWholeWordsOnly_checkBox->isChecked();
+  fData->fromCursor = fFromCursor_checkBox->isChecked();
+  fData->findBackwards = fFindBackwards_checkBox->isChecked();
+  if (fSelectedText_checkBox->isEnabled())
+    fData->selectedText = fSelectedText_checkBox->isChecked();
+  fData->promptOnReplace = fPromptOnReplace_checkBox->isChecked();
+
+  return fData;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT: called on find text available.
+ */
+void PReplaceDialog::onFindTextAvailable(const QString&)
+{
+  if (fFind_comboBox->currentText() != "")
+    fReplace_pushButton->setEnabled(true);
+  else
+    fReplace_pushButton->setEnabled(false);
+}
+
+//----------------------------------------------------------------------------------------------------
+// END
+//----------------------------------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PReplaceDialog.h b/src/musredit_qt6/musredit/PReplaceDialog.h
new file mode 100644
index 00000000..5e63cccd
--- /dev/null
+++ b/src/musredit_qt6/musredit/PReplaceDialog.h
@@ -0,0 +1,53 @@
+/****************************************************************************
+
+  PReplaceDialog.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PREPLACEDIALOG_H_
+#define _PREPLACEDIALOG_H_
+
+#include "musredit.h"
+#include "ui_PReplaceDialog.h"
+
+class PReplaceDialog : public QDialog, private Ui::PReplaceDialog
+{
+  Q_OBJECT
+
+  public:
+    PReplaceDialog(PFindReplaceData *data, const bool selection, QWidget *parent = nullptr);
+    virtual ~PReplaceDialog() {}
+
+    virtual PFindReplaceData *getData();
+
+  protected slots:
+    virtual void onFindTextAvailable(const QString&);
+
+  private:
+    PFindReplaceData *fData; ///< pointer to the find/replace data
+};
+
+#endif // _PREPLACEDIALOG_H_
diff --git a/src/musredit_qt6/musredit/PSubTextEdit.cpp b/src/musredit_qt6/musredit/PSubTextEdit.cpp
new file mode 100644
index 00000000..542adf48
--- /dev/null
+++ b/src/musredit_qt6/musredit/PSubTextEdit.cpp
@@ -0,0 +1,559 @@
+/****************************************************************************
+
+  PSubTextEdit.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QAction>
+#include <QMenu>
+#include <QDateTime>
+#include <QLineEdit>
+#include <QComboBox>
+#include <QMessageBox>
+#include <QIcon>
+#include <QPixmap>
+#include <QImage>
+
+#include "PAdmin.h"
+#include "PSubTextEdit.h"
+#include "PGetTitleBlockDialog.h"
+#include "PGetParameterBlockDialog.h"
+#include "PGetTheoryBlockDialog.h"
+#include "PGetFunctionsBlockDialog.h"
+#include "PGetAsymmetryRunBlockDialog.h"
+#include "PGetSingleHistoRunBlockDialog.h"
+#include "PGetNonMusrRunBlockDialog.h"
+#include "PGetFourierBlockDialog.h"
+#include "PGetPlotBlockDialog.h"
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Constructor.
+ *
+ * \param admin pointer to the musredit internal administration object.
+ * \param parent pointer to the parent object.
+ */
+PSubTextEdit::PSubTextEdit(PAdmin *admin, QWidget *parent) :
+                           QPlainTextEdit(parent),
+                           fAdmin(admin)
+{
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * @brief PSubTextEdit::getFitType
+ * @return
+ */
+int PSubTextEdit::getFitType()
+{
+  QString str = toPlainText();
+  int idx = str.indexOf("fittype");
+  if (idx == -1)
+    return -1;
+
+  bool ok;
+  for (int i=idx+7; i<str.length(); i++) {
+    if (str[i] != ' ') {
+      idx = QString(str[i]).toInt(&ok);
+      if (!ok)
+        idx = -1;
+      break;
+    }
+  }
+
+  return idx;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Starts the msr-title input dialog window.
+ */
+void PSubTextEdit::insertTitle()
+{
+  // for the time being the url's are hard coded but should be transfered to the XML startup
+  PGetTitleBlockDialog *dlg = new PGetTitleBlockDialog(fAdmin->getHelpUrl("title"));
+
+  if (dlg == 0)
+    return;
+
+  if (dlg->exec() == QDialog::Accepted) {
+    QString title = dlg->getTitle();
+    insertPlainText(title+"\n");
+  }
+
+  delete dlg;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Starts the msr-fit-parameter input dialog window.
+ */
+void PSubTextEdit::insertParameterBlock()
+{
+  // for the time being the url's are hard coded but should be transfered to the XML startup
+  PGetParameterBlockDialog *dlg = new PGetParameterBlockDialog(fAdmin->getHelpUrl("parameters"));
+
+  if (dlg == 0)
+    return;
+
+  if (dlg->exec() == QDialog::Accepted) {
+    insertPlainText(dlg->getParams());
+  }
+
+  delete dlg;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Inserts the selected theory item.
+ *
+ * \param name of the theory item to be added.
+ */
+void PSubTextEdit::insertTheoryFunction(QString name)
+{
+  QString str = "????";
+
+  int idx = -1;
+  for (unsigned int i=0; i<fAdmin->getTheoryCounts(); i++) {
+    if (name == fAdmin->getTheoryItem(i)->label) {
+      idx = i;
+      break;
+    }
+  }
+
+  if (idx == -1)
+    return;
+
+  PTheory *theoItem = fAdmin->getTheoryItem(idx);
+  if (theoItem == 0)
+    return;
+
+  // add theory function name
+  str = theoItem->name + "   ";
+  if (theoItem->name == "userFcn") {
+    str += "libMyLibrary.so  TMyFunction  ";
+  }
+
+  // add pseudo parameters
+  for (int i=0; i<theoItem->params; i++) {
+    str += QString("%1").arg(i+1) + "   ";
+  }
+
+  // add comment
+  str += theoItem->comment;
+
+  // add newline
+  str += "\n";
+
+  insertPlainText(str);
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Starts the msr-theory input dialog window.
+ */
+void PSubTextEdit::insertTheoryBlock()
+{
+  // for the time being the url's are hard coded but should be transfered to the XML startup
+  PGetTheoryBlockDialog *dlg = new PGetTheoryBlockDialog(fAdmin, fAdmin->getHelpUrl("theory"));
+
+  if (dlg == 0)
+    return;
+
+  if (dlg->exec() == QDialog::Accepted) {
+    insertPlainText(dlg->getTheoryBlock());
+    insertPlainText("\n");
+  }
+
+  delete dlg;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Starts the msr-functions input dialog window.
+ */
+void PSubTextEdit::insertFunctionBlock()
+{
+  // for the time being the url's are hard coded but should be transfered to the XML startup
+  PGetFunctionsBlockDialog *dlg = new PGetFunctionsBlockDialog(fAdmin->getHelpUrl("functions"));
+
+  if (dlg == 0)
+    return;
+
+  if (dlg->exec() == QDialog::Accepted) {
+    insertPlainText(dlg->getFunctionsBlock());
+    insertPlainText("\n\n");
+  }
+
+  delete dlg;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Starts the msr-asymmetry-run input dialog window.
+ */
+void PSubTextEdit::insertAsymRunBlock()
+{
+  // for the time being the url's are hard coded but should be transfered to the XML startup
+  PGetAsymmetryRunBlockDialog *dlg = new PGetAsymmetryRunBlockDialog(fAdmin->getHelpUrl("run"));
+
+  if (dlg == 0)
+    return;
+
+  if (dlg->exec() == QDialog::Accepted) {
+    QString str, workStr;
+    bool valid = true, present = true;
+    // check if there is already a run block present, necessary because of the '####' line
+    // STILL MISSING
+
+    // add run line
+    str += dlg->getRunHeaderInfo();
+
+    // add fittype
+    str += "fittype         2         (asymmetry fit)\n";
+
+    // add alpha if present
+    workStr = dlg->getAlphaParameter(present);
+    if (present) {
+      str += workStr;
+    }
+
+    // add beta if present
+    workStr = dlg->getBetaParameter(present);
+    if (present) {
+      str += workStr;
+    }
+
+    // add map
+    workStr = dlg->getMap(valid);
+    if (valid) {
+      str += workStr;
+    } else {
+      QMessageBox::critical(this, "**ERROR**",
+         "Given map not valid, will add a default map line",
+         QMessageBox::Ok, QMessageBox::NoButton);
+      str += "map             0  0  0  0  0  0  0  0  0  0\n";
+    }
+
+    // add forward
+    str += dlg->getForward();
+
+    // add backward
+    str += dlg->getBackward();
+
+    // add background or backgr.fix
+    workStr = dlg->getBackground(valid);
+    str += workStr;
+    if (!valid) {
+      QMessageBox::critical(this, "**ERROR**",
+         "Either <b>background</b> or <b>backgr.fix</b> is needed!\nWill set <b>background</b> to 0..10, please correct!",
+         QMessageBox::Ok, QMessageBox::NoButton);
+    }
+
+    // add data
+    workStr = dlg->getData(valid);
+    if (valid) {
+      str += workStr;
+    } else {
+      QMessageBox::critical(this, "**ERROR**",
+         "Not all Data entries are present.Fix is needed!\nWill not set anything!",
+         QMessageBox::Ok, QMessageBox::NoButton);
+    }
+
+    // add t0 if present
+    workStr = dlg->getT0(present);
+    if (present) {
+      str += workStr;
+    } else {
+      QMessageBox::warning(this, "**ERROR**",
+         "T0's not given, assume that they are present in the data file!",
+         QMessageBox::Ok, QMessageBox::NoButton);
+    }
+
+    // add fit range
+    workStr = dlg->getFitRange(valid);
+    str += workStr;
+    if (!valid) {
+      QMessageBox::critical(this, "**ERROR**",
+         "No valid fit range is given.Fix is needed!\nWill add a default one!",
+         QMessageBox::Ok, QMessageBox::NoButton);
+    }
+
+    // add packing
+    workStr = dlg->getPacking(present);
+    str += workStr;
+    if (!present) {
+      QMessageBox::critical(this, "**ERROR**",
+         "No valid packing/binning is given.Fix is needed!\nWill add a default one!",
+         QMessageBox::Ok, QMessageBox::NoButton);
+    }
+
+    // insert Asymmetry Run Block at the current cursor position
+    insertPlainText(str);
+  }
+
+  delete dlg;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Starts the msr-single-historgram-run input dialog window.
+ */
+void PSubTextEdit::insertSingleHistRunBlock()
+{
+  // for the time being the url's are hard coded but should be transfered to the XML startup
+  PGetSingleHistoRunBlockDialog *dlg = new PGetSingleHistoRunBlockDialog(fAdmin->getHelpUrl("run"));
+
+  if (dlg == 0)
+    return;
+
+  if (dlg->exec() == QDialog::Accepted) {
+    QString str, workStr;
+    bool valid = true, present = true;
+    // check if there is already a run block present, necessary because of the '####' line
+    // STILL MISSING
+
+    // add run line
+    str += dlg->getRunHeaderInfo();
+
+    // add fittype
+    str += "fittype         0         (single histogram fit)\n";
+
+    // add map
+    workStr = dlg->getMap(valid);
+    if (valid) {
+      str += workStr;
+    } else {
+      QMessageBox::critical(this, "**ERROR**",
+         "Given map not valid, will add a default map line",
+         QMessageBox::Ok, QMessageBox::NoButton);
+      str += "map             0  0  0  0  0  0  0  0  0  0\n";
+    }
+
+    // add forward
+    str += dlg->getForward();
+
+    // add norm
+    str += dlg->getNorm();
+
+    // add lifetime parameter
+    workStr = dlg->getMuonLifetimeParam(present);
+    if (present) {
+      str += workStr;
+    }
+
+    // add lifetime correction flag if present
+    workStr = dlg->getLifetimeCorrection(present);
+    if (present) {
+      str += workStr;
+    }
+
+    // add background, backgr.fix or backgr.fit
+    workStr = dlg->getBackground(valid);
+    str += workStr;
+    if (!valid) {
+      QMessageBox::critical(this, "**ERROR**",
+         "Either <b>background</b>, <b>backgr.fix</b>, or <b>backgr.fit</b> is needed!\nWill set <b>background</b> to 0..10, please correct!",
+         QMessageBox::Ok, QMessageBox::NoButton);
+    }
+
+    // add t0 if present
+    workStr = dlg->getT0(present);
+    if (present) {
+      str += workStr;
+    } else {
+      QMessageBox::warning(this, "**ERROR**",
+         "T0's not given, assume that they are present in the data file!",
+         QMessageBox::Ok, QMessageBox::NoButton);
+    }
+
+    // add data
+    workStr = dlg->getData(valid);
+    if (valid) {
+      str += workStr;
+    } else {
+      QMessageBox::critical(this, "**ERROR**",
+         "Not all Data entries are present.Fix is needed!\nWill not set anything!",
+         QMessageBox::Ok, QMessageBox::NoButton);
+    }
+
+    // add fit range
+    workStr = dlg->getFitRange(valid);
+    str += workStr;
+    if (!valid) {
+      QMessageBox::critical(this, "**ERROR**",
+         "No valid fit range is given.Fix is needed!\nWill add a default one!",
+         QMessageBox::Ok, QMessageBox::NoButton);
+    }
+
+    // add packing
+    workStr = dlg->getPacking(present);
+    str += workStr;
+    if (!present) {
+      QMessageBox::critical(this, "**ERROR**",
+         "No valid packing/binning is given.Fix is needed!\nWill add a default one!",
+         QMessageBox::Ok, QMessageBox::NoButton);
+    }
+
+    // insert Single Histogram Run Block at the current cursor position
+    insertPlainText(str);
+  }
+
+  delete dlg;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Starts the msr-nonMusr-run input dialog window.
+ */
+void PSubTextEdit::insertNonMusrRunBlock()
+{
+  PGetNonMusrRunBlockDialog *dlg = new PGetNonMusrRunBlockDialog(fAdmin->getHelpUrl("run"));
+
+  if (dlg == 0)
+    return;
+
+  if (dlg->exec() == QDialog::Accepted) {
+    QString str, workStr;
+    bool valid = true;
+    // check if there is already a run block present, necessary because of the '####' line
+    // STILL MISSING
+
+    // add run line
+    str += dlg->getRunHeaderInfo();
+
+    // add fittype
+    str += "fittype         8         (non musr fit)\n";
+
+    // add map
+    workStr = dlg->getMap(valid);
+    if (valid) {
+      str += workStr;
+    } else {
+      QMessageBox::critical(this, "**ERROR**",
+         "Given map not valid, will add a default map line",
+         QMessageBox::Ok, QMessageBox::NoButton);
+      str += "map             0  0  0  0  0  0  0  0  0  0\n";
+    }
+
+    // add xy-data
+    workStr = dlg->getXYData(valid);
+    if (valid) {
+      str += workStr;
+    } else {
+      QMessageBox::critical(this, "**ERROR**",
+         "Not all xy-data entries are present.Fix is needed!\nWill not set anything!",
+         QMessageBox::Ok, QMessageBox::NoButton);
+    }
+
+    // add fit range
+    workStr = dlg->getFitRange(valid);
+    str += workStr;
+    if (!valid) {
+      QMessageBox::critical(this, "**ERROR**",
+         "No valid fit range is given.Fix is needed!\nWill add a default one!",
+         QMessageBox::Ok, QMessageBox::NoButton);
+    }
+
+    // add packing
+    str += "packing         1\n";
+
+    // insert NonMusr Run Block at the current cursor position
+    insertPlainText(str);
+  }
+
+  delete dlg;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Insert the command block.
+ */
+void PSubTextEdit::insertCommandBlock()
+{
+  insertPlainText("###############################################################\n");
+  insertPlainText("COMMANDS\n");
+  insertPlainText("SET BATCH\n");
+  insertPlainText("STRATEGY 1\n");
+  insertPlainText("MINIMIZE\n");
+  insertPlainText("#MINOS\n");
+  insertPlainText("SAVE\n");
+  insertPlainText("END RETURN\n\n");
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Starts the msr-Fourier input dialog window.
+ */
+void PSubTextEdit::insertFourierBlock()
+{
+  // for the time being the url's are hard coded but should be transfered to the XML startup
+  PGetFourierBlockDialog *dlg = new PGetFourierBlockDialog(fAdmin->getHelpUrl("fourier"));
+
+  if (dlg == 0)
+    return;
+
+  if (dlg->exec() == QDialog::Accepted) {
+    insertPlainText(dlg->getFourierBlock()+"\n");
+  }
+
+  delete dlg;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Starts the msr-plot input dialog window.
+ */
+void PSubTextEdit::insertPlotBlock()
+{
+  // for the time being the url's are hard coded but should be transfered to the XML startup
+  PGetPlotBlockDialog *dlg = new PGetPlotBlockDialog(fAdmin->getHelpUrl("plot"));
+
+  if (dlg == 0)
+    return;
+
+  if (dlg->exec() == QDialog::Accepted) {
+    insertPlainText(dlg->getPlotBlock()+"\n");
+  }
+
+  delete dlg;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Insert a default msr-statistics block.
+ */
+void PSubTextEdit::insertStatisticBlock()
+{
+  QDateTime dt = QDateTime::currentDateTime();
+  insertPlainText("###############################################################\n");
+  insertPlainText("STATISTIC --- " + dt.toString("yyyy-MM-dd hh:mm:ss") + "\n");
+  insertPlainText("chisq = ????, NDF = ????, chisq/NDF = ????\n\n");
+}
+
+//----------------------------------------------------------------------------------------------------
+// END
+//----------------------------------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PSubTextEdit.h b/src/musredit_qt6/musredit/PSubTextEdit.h
new file mode 100644
index 00000000..5836800c
--- /dev/null
+++ b/src/musredit_qt6/musredit/PSubTextEdit.h
@@ -0,0 +1,69 @@
+/****************************************************************************
+
+  PSubTextEdit.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2009-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PSUBTEXTEDIT_H_
+#define _PSUBTEXTEDIT_H_
+
+#include <QPlainTextEdit>
+#include <QDateTime>
+
+#include "PAdmin.h"
+
+//------------------------------------------------------------------------------------------
+/**
+ * <p>Class handling a single text edit tab within musredit.
+ */
+class PSubTextEdit : public QPlainTextEdit
+{
+    Q_OBJECT
+
+  public:
+    PSubTextEdit(PAdmin *admin = 0, QWidget *parent = 0);
+    virtual ~PSubTextEdit() {}
+    int getFitType();
+
+  public slots:
+    void insertTitle();
+    void insertParameterBlock();
+    void insertTheoryFunction(QString name);
+    void insertTheoryBlock();
+    void insertFunctionBlock();
+    void insertAsymRunBlock();
+    void insertSingleHistRunBlock();
+    void insertNonMusrRunBlock();
+    void insertCommandBlock();
+    void insertFourierBlock();
+    void insertPlotBlock();
+    void insertStatisticBlock();
+
+  private:
+    PAdmin *fAdmin;  ///< pointer to the administration object which holds working-, executable-paths etc.
+};
+
+#endif // _PSUBTEXTEDIT_H_
diff --git a/src/musredit_qt6/musredit/PTextEdit.cpp b/src/musredit_qt6/musredit/PTextEdit.cpp
new file mode 100644
index 00000000..fb519ab0
--- /dev/null
+++ b/src/musredit_qt6/musredit/PTextEdit.cpp
@@ -0,0 +1,3551 @@
+/****************************************************************************
+
+  PTextEdit.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2021 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <iostream>
+#include <fstream>
+
+#include <QString>
+#include <QStringList>
+#include <QTextEdit>
+#include <QStatusBar>
+#include <QAction>
+#include <QMenuBar>
+#include <QMenu>
+#include <QToolBar>
+#include <QTabWidget>
+#include <QApplication>
+#include <QFontDatabase>
+#include <QComboBox>
+#include <QLineEdit>
+#include <QFileInfo>
+#include <QFile>
+#include <QFileDialog>
+#include <QtPrintSupport/QPrinter>
+#include <QtPrintSupport/QPrintDialog>
+#include <QColorDialog>
+#include <QPainter>
+#include <QMessageBox>
+#include <QDialog>
+#include <QPixmap>
+#include <QTextCursor>
+#include <QTextBlock>
+#include <QTextDocumentFragment>
+#include <QTextList>
+#include <QProcess>
+#include <QFileSystemWatcher>
+#include <QDesktopServices>
+#include <QUrl>
+
+#include <QtDebug>
+
+#include "PTextEdit.h"
+#include "PSubTextEdit.h"
+#include "PAdmin.h"
+#include "PFindDialog.h"
+#include "PReplaceDialog.h"
+#include "PReplaceConfirmationDialog.h"
+#include "PFitOutputHandler.h"
+#include "PDumpOutputHandler.h"
+#include "PPrefsDialog.h"
+#include "PGetMusrFTOptionsDialog.h"
+#include "PMusrEditAbout.h"
+#include "PMsr2DataDialog.h"
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Constructor
+ *
+ * \param parent pointer to the parent object
+ * \param f qt windows flags
+ */
+PTextEdit::PTextEdit( QWidget *parent )
+    : QMainWindow( parent )
+{
+  bool gotTheme = getTheme();
+
+  // reads and manages the conents of the xml-startup (musredit_startup.xml) file
+  fAdmin = new PAdmin();
+
+  // set default setting of the fDarkMenuIconIcons only if a theme has been recognized, otherwise take the
+  // one from the xml startup file.
+  if (gotTheme) {
+    fAdmin->setDarkThemeIconsMenuFlag(fDarkMenuIcon);
+    fAdmin->setDarkThemeIconsToolbarFlag(fDarkToolBarIcon);
+  } else {
+    fDarkMenuIcon = fAdmin->getDarkThemeIconsMenuFlag();
+    fDarkToolBarIcon = fAdmin->getDarkThemeIconsToolbarFlag();
+  }
+
+  // enable file system watcher. Needed to get notification if the msr-file is changed outside of musrfit at runtime
+  fFileSystemWatcherActive = true;
+  fFileSystemWatcher = new QFileSystemWatcher();
+  if (fFileSystemWatcher == nullptr) {
+    QMessageBox::information(this, "**ERROR**", "Couldn't invoke QFileSystemWatcher!");
+  } else {
+    connect( fFileSystemWatcher, SIGNAL(fileChanged(const QString&)), this, SLOT(fileChanged(const QString&)));
+  }
+
+  // initialize stuff
+  fMusrT0Action = nullptr;
+
+  fMsr2DataParam = nullptr;
+  fFindReplaceData = nullptr;
+
+  fTabWidget = nullptr;
+
+  // setup menus
+  setupFileActions();
+  setupEditActions();
+  setupTextActions();
+  setupMusrActions();
+  setupHelpActions();
+
+  fTabWidget = new QTabWidget( this );
+  fTabWidget->setMovable(true); // allows to shuffle around tabs
+  setCentralWidget( fTabWidget );
+
+  textFamily(fAdmin->getFontName());
+  textSize(QString("%1").arg(fAdmin->getFontSize()));
+  fFontChanging = false;
+
+  QString iconName("");
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/musrfit-dark.svg");
+  else
+    iconName = QString(":/icons/musrfit-plain.svg");
+  setWindowIcon( QIcon( QPixmap(iconName) ) );
+
+  // if arguments are give, try to load those files, otherwise create an empty new file
+  if ( qApp->arguments().size() != 1 ) {
+    for ( int i = 1; i < qApp->arguments().size(); ++i )
+      load( qApp->arguments()[ i ] );
+  } else {
+    fileNew();
+  }
+
+  connect( fTabWidget, SIGNAL( currentChanged(int) ), this, SLOT( applyFontSettings(int) ));
+
+  fLastDirInUse = fAdmin->getDefaultSavePath();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>This slot is called if the main application is on the way to quit. This ensures that allocated
+ * memory indeed can be free'd.
+ */
+void PTextEdit::aboutToQuit()
+{
+  if (fAdmin) {
+    delete fAdmin;
+    fAdmin = nullptr;
+  }
+  if (fMusrT0Action) {
+    delete fMusrT0Action;
+    fMusrT0Action = nullptr;
+  }
+  if (fMsr2DataParam) {
+    delete fMsr2DataParam;
+    fMsr2DataParam = nullptr;
+  }
+  if (fFindReplaceData) {
+    delete fFindReplaceData;
+    fFindReplaceData = nullptr;
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Setup the file menu and the necessary actions.
+ */
+void PTextEdit::setupFileActions()
+{
+  QToolBar *tb = new QToolBar( this );
+  tb->setWindowTitle( "File Actions" );
+  addToolBar( tb );
+
+  QMenu *menu = new QMenu( tr( "F&ile" ), this );
+  menuBar()->addMenu( menu );
+
+  QAction *a;
+  QString iconName("");
+
+  // New
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/document-new-dark.svg");
+  else
+    iconName = QString(":/icons/document-new-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "&New..." ), this );
+  a->setShortcut( tr("Ctrl+N") );
+  a->setStatusTip( tr("Create a new msr-file") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( fileNew() ) );
+  menu->addAction(a);
+  fActions["New"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/document-new-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "&New..." ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( fileNew() ) );
+  }
+  tb->addAction(a);
+  fActions["New-tb"] = a;
+
+  // Open
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/document-open-dark.svg");
+  else
+    iconName = QString(":/icons/document-open-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Open..." ), this );
+  a->setShortcut( tr("Ctrl+O") );
+  a->setStatusTip( tr("Opens a msr-file") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( fileOpen() ) );
+  menu->addAction(a);
+  fActions["Open"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/document-open-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Open..." ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( fileOpen() ) );
+  }
+  tb->addAction(a);
+  fActions["Open-tb"] = a;
+
+  // Recent Files
+  fRecentFilesMenu = menu->addMenu( tr("Recent Files") );
+  for (int i=0; i<MAX_RECENT_FILES; i++) {
+    fRecentFilesAction[i] = new QAction(fRecentFilesMenu);
+    fRecentFilesAction[i]->setVisible(false);
+    connect( fRecentFilesAction[i], SIGNAL(triggered()), this, SLOT(fileOpenRecent()));
+    fRecentFilesMenu->addAction(fRecentFilesAction[i]);
+  }
+  fillRecentFiles();
+
+  // Reload
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/view-refresh-dark.svg");
+  else
+    iconName = QString(":/icons/view-refresh-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "Reload..." ), this );
+  a->setShortcut( tr("F5") );
+  a->setStatusTip( tr("Reload msr-file") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( fileReload() ) );
+  menu->addAction(a);
+  fActions["Reload"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/view-refresh-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "Reload..." ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( fileReload() ) );
+  }
+  tb->addAction(a);
+  fActions["Reload-tb"] = a;
+
+  a = new QAction( tr( "Open Prefs..." ), this);
+  connect( a, SIGNAL( triggered() ), this, SLOT( fileOpenPrefs() ) );
+  menu->addAction(a);
+
+  menu->addSeparator();
+
+  // Save
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/document-save-dark.svg");
+  else
+    iconName = QString(":/icons/document-save-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Save..." ), this );
+  a->setShortcut( tr("Ctrl+S") );
+  a->setStatusTip( tr("Save msr-file") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( fileSave() ) );
+  menu->addAction(a);
+  fActions["Save"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/document-save-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Save..." ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( fileSave() ) );
+  }
+  tb->addAction(a);
+  fActions["Save-tb"] = a;
+
+  // Save As
+  a = new QAction( tr( "Save &As..." ), this );
+  a->setStatusTip( tr("Save msr-file As") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( fileSaveAs() ) );
+  menu->addAction(a);
+
+  // Save Prefs
+  a = new QAction( tr( "Save Prefs..." ), this );
+  connect( a, SIGNAL( triggered() ), this, SLOT( fileSavePrefs() ) );
+  menu->addAction(a);
+
+  menu->addSeparator();
+
+  // Print
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/document-print-dark.svg");
+  else
+    iconName = QString(":/icons/document-print-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Print..." ), this );
+  a->setShortcut( tr("Ctrl+P") );
+  a->setStatusTip( tr("Print msr-file") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( filePrint() ) );
+  menu->addAction(a);
+  fActions["Print"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/document-print-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Print..." ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( filePrint() ) );
+  }
+  tb->addAction(a);
+  fActions["Print-tb"] = a;
+
+  menu->addSeparator();
+
+  // Close
+  a = new QAction( tr( "&Close" ), this );
+  a->setShortcut( tr("Ctrl+W") );
+  a->setStatusTip( tr("Close msr-file") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( fileClose() ) );
+  menu->addAction(a);
+
+  // Close All
+  a = new QAction( tr( "Close &All" ), this );
+  connect( a, SIGNAL( triggered() ), this, SLOT( fileCloseAll() ) );
+  menu->addAction(a);
+
+  // Close All Others
+  a = new QAction( tr( "Clo&se All Others" ), this );
+  a->setShortcut( tr("Ctrl+Shift+W") );
+  a->setStatusTip( tr("Close All Other Tabs") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( fileCloseAllOthers() ) );
+  menu->addAction(a);
+
+  menu->addSeparator();
+
+  // Exit
+  a = new QAction( tr( "E&xit" ), this );
+  a->setShortcut( tr("Ctrl+Q") );
+  a->setStatusTip( tr("Exit Program") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( fileExit() ) );
+  menu->addAction(a);
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Setup the edit menu and the necessary actions.
+ */
+void PTextEdit::setupEditActions()
+{
+  QToolBar *tb = new QToolBar( this );
+  tb->setWindowTitle( "Edit Actions" );
+  addToolBar( tb );
+
+  QMenu *menu = new QMenu( tr( "&Edit" ), this );
+  menuBar()->addMenu( menu );
+
+  QAction *a;
+  QString iconName("");
+
+  // Undo
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/edit-undo-dark.svg");
+  else
+    iconName = QString(":/icons/edit-undo-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Undo" ), this );
+  a->setShortcut( tr("Ctrl+Z") );
+  a->setStatusTip( tr("Edit Undo") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( editUndo() ) );
+  menu->addAction(a);
+  fActions["Undo"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/edit-undo-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Undo" ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( editUndo() ) );
+  }
+  tb->addAction(a);
+  fActions["Undo-tb"] = a;
+
+  // Redo
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/edit-redo-dark.svg");
+  else
+    iconName = QString(":/icons/edit-redo-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Redo" ), this );
+  a->setShortcut( tr("Ctrl+Y") );
+  a->setStatusTip( tr("Edit Redo") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( editRedo() ) );
+  menu->addAction(a);
+  fActions["Redo"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/edit-redo-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Redo" ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( editRedo() ) );
+  }
+  tb->addAction(a);
+  fActions["Redo-tb"] = a;
+
+  menu->addSeparator();
+
+  // Select All
+  a = new QAction( tr( "Select &All" ), this );
+  a->setShortcut( tr("Ctrl+A") );
+  a->setStatusTip( tr("Edit Select All") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( editSelectAll() ) );
+  menu->addAction(a);
+
+  menu->addSeparator();
+  tb->addSeparator();
+
+  // Copy
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/edit-copy-dark.svg");
+  else
+    iconName = QString(":/icons/edit-copy-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Copy" ), this );
+  a->setShortcut( tr("Ctrl+C") );
+  a->setStatusTip( tr("Edit Copy") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( editCopy() ) );
+  menu->addAction(a);
+  fActions["Copy"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/edit-copy-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Copy" ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( editCopy() ) );
+  }
+  tb->addAction(a);
+  fActions["Copy-tb"] = a;
+
+  // Cut
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/edit-cut-dark.svg");
+  else
+    iconName = QString(":/icons/edit-cut-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "Cu&t" ), this );
+  a->setShortcut( tr("Ctrl+X") );
+  a->setStatusTip( tr("Edit Cut") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( editCut() ) );
+  menu->addAction(a);
+  fActions["Cut"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/edit-cut-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "Cu&t" ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( editCut() ) );
+  }
+  tb->addAction(a);
+  fActions["Cut-tb"] = a;
+
+  // Paste
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/edit-paste-dark.svg");
+  else
+    iconName = QString(":/icons/edit-paste-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Paste" ), this );
+  a->setShortcut( tr("Ctrl+V") );
+  a->setStatusTip( tr("Edit Paste") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( editPaste() ) );
+  menu->addAction(a);
+  fActions["Paste"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/edit-paste-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Paste" ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( editPaste() ) );
+  }
+  tb->addAction(a);
+  fActions["Paste-tb"] = a;
+
+  menu->addSeparator();
+  tb->addSeparator();
+
+  // Find
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/edit-find-dark.svg");
+  else
+    iconName = QString(":/icons/edit-find-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Find" ), this );
+  a->setShortcut( tr("Ctrl+F") );
+  a->setStatusTip( tr("Edit Find") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( editFind() ) );
+  menu->addAction(a);
+  fActions["Find"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/edit-find-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Find" ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( editFind() ) );
+  }
+  tb->addAction(a);
+  fActions["Find-tb"] = a;
+
+  // Find Next
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/go-next-use-dark.svg");
+  else
+    iconName = QString(":/icons/go-next-use-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "Find &Next" ), this );
+  a->setShortcut( tr("F3") );
+  a->setStatusTip( tr("Edit Find Next") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( editFindNext() ) );
+  menu->addAction(a);
+  fActions["Find Next"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/go-next-use-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "Find &Next" ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( editFindNext() ) );
+  }
+  tb->addAction(a);
+  fActions["Find Next-tb"] = a;
+
+  // Find Previous
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/go-previous-use-dark.svg");
+  else
+    iconName = QString(":/icons/go-previous-use-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ) , tr( "Find Pre&vious" ), this );
+  a->setShortcut( tr("Shift+F4") );
+  a->setStatusTip( tr("Edit Find Previous") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( editFindPrevious() ) );
+  menu->addAction(a);
+  fActions["Find Previous"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/go-previous-use-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "Find Pre&vious" ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( editFindPrevious() ) );
+  }
+  tb->addAction(a);
+  fActions["Find Previous-tb"] = a;
+
+  // Replace
+  a = new QAction( tr( "Replace..." ), this );
+  a->setShortcut( tr("Ctrl+R") );
+  a->setStatusTip( tr("Edit Replace") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( editFindAndReplace() ) );
+  menu->addAction(a);
+  menu->addSeparator();
+
+  QMenu *addSubMenu = new QMenu( tr ("Add Block"), this);
+
+  a = new QAction( tr("Title Block"), this );
+  a->setStatusTip( tr("Invokes MSR Title Block Dialog") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( insertTitle() ));
+  addSubMenu->addAction(a);
+
+  a = new QAction( tr("Parameter Block"), this );
+  a->setStatusTip( tr("Invokes MSR Parameter Block Dialog") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( insertParameterBlock() ));
+  addSubMenu->addAction(a);
+
+  a = new QAction( tr("Theory Block"), this );
+  a->setStatusTip( tr("Invokes MSR Theory Block Dialog") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( insertTheoryBlock() ));
+  addSubMenu->addAction(a);
+
+  a = new QAction( tr("Function Block"), this );
+  a->setStatusTip( tr("Invokes MSR Function Block Dialog") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( insertFunctionBlock() ));
+  addSubMenu->addAction(a);
+
+  // feed the theoryFunctions popup menu
+  QMenu *theoryFunctions = new QMenu( tr("Add Theory Function"), this );  
+  for (unsigned int i=0; i<fAdmin->getTheoryCounts(); i++) {
+    PTheory *theoryItem = fAdmin->getTheoryItem(i);
+    a = new QAction( theoryItem->label, this);
+    theoryFunctions->addAction(a);
+  }
+  connect( theoryFunctions, SIGNAL( triggered(QAction*)), this, SLOT( insertTheoryFunction(QAction*) ) );
+
+  a = new QAction( tr("Asymmetry Run Block"), this );
+  a->setStatusTip( tr("Invokes MSR Asymmetry Run Block Dialog") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( insertAsymRunBlock() ));
+  addSubMenu->addAction(a);
+
+  a = new QAction( tr("Single Histo Run Block"), this );
+  a->setStatusTip( tr("Invokes MSR Single Histo Run Block Dialog") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( insertSingleHistRunBlock() ));
+  addSubMenu->addAction(a);
+
+  a = new QAction( tr("NonMuSR Run Block"), this );
+  a->setStatusTip( tr("Invokes MSR NonMuSR Run Block Dialog") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( insertNonMusrRunBlock() ));
+  addSubMenu->addAction(a);
+
+  a = new QAction( tr("Command Block"), this );
+  a->setStatusTip( tr("Invokes MSR Command Block Dialog") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( insertCommandBlock() ));
+  addSubMenu->addAction(a);
+
+  a = new QAction( tr("Fourier Block"), this );
+  a->setStatusTip( tr("Invokes MSR Fourier Block Dialog") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( insertFourierBlock() ));
+  addSubMenu->addAction(a);
+
+  a = new QAction( tr("Plot Block"), this );
+  a->setStatusTip( tr("Invokes MSR Plot Block Dialog") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( insertPlotBlock() ));
+  addSubMenu->addAction(a);
+
+  a = new QAction( tr("Statistic Block"), this );
+  a->setStatusTip( tr("Invokes MSR Statistic Block Dialog") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( insertStatisticBlock() ));
+  addSubMenu->addAction(a);
+
+  menu->addMenu(addSubMenu);
+  menu->addMenu(theoryFunctions);
+  menu->addSeparator();
+
+  a = new QAction( tr( "Co&mment" ), this );
+  a->setShortcut( tr("Ctrl+M") );
+  a->setStatusTip( tr("Edit Comment Selected Lines") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( editComment() ) );
+  menu->addAction(a);
+
+  a = new QAction( tr( "Unco&mment" ), this );
+  a->setShortcut( tr("Ctrl+Shift+M") );
+  a->setStatusTip( tr("Edit Uncomment Selected Lines") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( editUncomment() ) );
+  menu->addAction(a);
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Setup the font/font size menu.
+ */
+void PTextEdit::setupTextActions()
+{
+  QToolBar *tb = new QToolBar( this );
+  tb->setWindowTitle( "Format Actions" );
+  addToolBar( tb );
+
+  fComboFont = new QComboBox();
+  fComboFont->setEditable(true);
+  QFontDatabase db;
+  fComboFont->addItems( db.families() );
+  connect( fComboFont, SIGNAL( currentTextChanged( const QString & ) ),
+           this, SLOT( textFamily( const QString & ) ) );
+  QLineEdit *edit = fComboFont->lineEdit();
+  if (edit == nullptr) {
+    return;
+  }
+  edit->setText( fAdmin->getFontName() );
+  tb->addWidget(fComboFont);
+
+  fComboSize = new QComboBox( tb );
+  fComboSize->setEditable(true);
+  QList<int> sizes = db.standardSizes();
+  QList<int>::Iterator it = sizes.begin();
+  for ( ; it != sizes.end(); ++it )
+    fComboSize->addItem( QString::number( *it ) );
+  connect( fComboSize, SIGNAL( currentTextChanged( const QString & ) ),
+           this, SLOT( textSize( const QString & ) ) );
+  edit = fComboSize->lineEdit();
+  if (edit == nullptr) {
+    return;
+  }
+  edit->setText( QString("%1").arg(fAdmin->getFontSize()) );
+  tb->addWidget(fComboSize);
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Setup the musrfit menu and the necessary actions.
+ */
+void PTextEdit::setupMusrActions()
+{
+  addToolBarBreak();
+
+  QToolBar *tb = new QToolBar( this );
+  tb->setWindowTitle( "Musr Actions" );
+  addToolBar( tb );
+
+  QMenu *menu = new QMenu( tr( "&MusrFit" ), this );
+  menuBar()->addMenu( menu );
+
+  QAction *a;
+  QString iconName("");
+
+  // musrWiz
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/musrWiz-32x32-dark.svg");
+  else
+    iconName = QString(":/icons/musrWiz-32x32.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "musr&Wiz" ), this );
+  a->setShortcut( tr("Alt+W") );
+  a->setStatusTip( tr("Call musrWiz which helps to create msr-files") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( musrWiz() ) );
+  menu->addAction(a);
+  fActions["musrWiz"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/musrWiz-32x32.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "musr&Wiz" ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( musrWiz() ) );
+  }
+  tb->addAction(a);
+  fActions["musrWiz-tb"] = a;
+
+  menu->addSeparator();
+  tb->addSeparator();
+
+  // Calculate Chisq
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/musrchisq-dark.svg");
+  else
+    iconName = QString(":/icons/musrchisq-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "Calculate &Chisq" ), this );
+  a->setShortcut( tr("Alt+C") );
+  a->setStatusTip( tr("Calculate Chi Square (Log Max Likelihood)") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( musrCalcChisq() ) );
+  menu->addAction(a);
+  fActions["calcChisq"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/musrchisq-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "Calculate &Chisq" ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( musrCalcChisq() ) );
+  }
+  tb->addAction(a);
+  fActions["calcChisq-tb"] = a;
+
+  // musrfit
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/musrfit-dark.svg");
+  else
+    iconName = QString(":/icons/musrfit-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Fit" ), this );
+  a->setShortcut( tr("Alt+F") );
+  a->setStatusTip( tr("Fit") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( musrFit() ) );
+  menu->addAction(a);
+  fActions["musrfit"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/musrfit-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Fit" ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( musrFit() ) );
+  }
+  tb->addAction(a);
+  fActions["musrfit-tb"] = a;
+
+  // Swap Msr/Mlog
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/musrswap-dark.svg");
+  else
+    iconName = QString(":/icons/musrswap-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Swap Msr <-> Mlog" ), this );
+  a->setShortcut( tr("Alt+S") );
+  a->setStatusTip( tr("Swap msr-file <-> mlog-file") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( musrSwapMsrMlog() ) );
+  menu->addAction(a);
+  fActions["Swap Msr/Mlog"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/musrswap-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Swap Msr <-> Mlog" ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( musrSwapMsrMlog() ) );
+  }
+  tb->addAction(a);
+  fActions["Swap Msr/Mlog-tb"] = a;
+
+  // musrStep
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/musrStep-32x32-dark.svg");
+  else
+    iconName = QString(":/icons/musrStep-32x32.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "Set Ste&ps" ), this );
+  a->setShortcut( tr("Alt+P") );
+  a->setStatusTip( tr("Set Steps") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( musrSetSteps() ) );
+  menu->addAction(a);
+  fActions["musrStep"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/musrStep-32x32.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "Set Ste&ps" ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( musrSetSteps() ) );
+  }
+  tb->addAction(a);
+  fActions["musrStep-tb"] = a;
+
+  // msr2data
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/msr2data-dark.svg");
+  else
+    iconName = QString(":/icons/msr2data-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "Msr&2Data" ), this );
+  a->setShortcut( tr("Alt+2") );
+  a->setStatusTip( tr("Start msr2data interface") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( musrMsr2Data() ) );
+  menu->addAction(a);
+  fActions["msr2data"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/msr2data-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Msr2Data" ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( musrMsr2Data() ) );
+  }
+  tb->addAction(a);
+  fActions["msr2data-tb"] = a;
+
+  // mupp
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/mupp-dark.svg");
+  else
+    iconName = QString(":/icons/mupp-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "m&upp" ), this );
+  a->setShortcut( tr("Alt+U") );
+  a->setStatusTip( tr("Start mupp, the muSR parameter plotter") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( mupp() ) );
+  menu->addAction(a);
+  fActions["mupp"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/mupp-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "m&upp" ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( mupp() ) );
+  }
+  tb->addAction(a);
+  fActions["mupp-tb"] = a;
+
+  menu->addSeparator();
+  tb->addSeparator();
+
+  // musrview
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/musrview-dark.svg");
+  else
+    iconName = QString(":/icons/musrview-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "&View" ), this );
+  a->setShortcut( tr("Alt+V") );
+  a->setStatusTip( tr("Start musrview") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( musrView() ) );
+  menu->addAction(a);
+  fActions["musrview"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/musrview-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "&View" ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( musrView() ) );
+  }
+  tb->addAction(a);
+  fActions["musrview-tb"] = a;
+
+  // musrt0
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/musrt0-dark.svg");
+  else
+    iconName = QString(":/icons/musrt0-plain.svg");
+  fMusrT0Action = new QAction( QIcon( QPixmap(iconName) ), tr( "&T0" ), this );
+  fMusrT0Action->setStatusTip( tr("Start musrt0") );
+  connect( fMusrT0Action, SIGNAL( triggered() ), this, SLOT( musrT0() ) );
+  menu->addAction(fMusrT0Action);
+  fActions["musrt0"] = fMusrT0Action;
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/musrt0-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "&T0" ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( musrT0() ) );
+  }
+  tb->addAction(fMusrT0Action);
+  fMusrT0Action->setEnabled(fAdmin->getEnableMusrT0Flag());
+  fActions["musrt0-tb"] = fMusrT0Action;
+
+  // musrFT
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/musrFT-dark.svg");
+  else
+    iconName = QString(":/icons/musrFT-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "Raw Fourier" ), this );
+  a->setStatusTip( tr("Start musrFT") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( musrFT() ) );
+  menu->addAction(a);
+  fActions["musrFT"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/musrFT-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "Raw Fourier" ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( musrFT() ) );
+  }
+  tb->addAction(a);
+  fActions["musrFT-tb"] = a;
+
+  // musrprefs
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/musrprefs-dark.svg");
+  else
+    iconName = QString(":/icons/musrprefs-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Preferences" ), this );
+  a->setStatusTip( tr("Show Preferences") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( musrPrefs() ) );
+  menu->addAction(a);
+  fActions["musrprefs"] = a;
+
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/musrprefs-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Preferences" ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( musrPrefs() ) );
+  }
+  tb->addAction(a);
+  fActions["musrprefs-tb"] = a;
+
+  menu->addSeparator();
+  tb->addSeparator();
+
+  // musrdump
+  if (fDarkMenuIcon)
+    iconName = QString(":/icons/musrdump-dark.svg");
+  else
+    iconName = QString(":/icons/musrdump-plain.svg");
+  a = new QAction( QIcon( QPixmap(iconName)), tr( "&Dump Header"), this);
+  a->setStatusTip( tr("Dumps muSR File Header Information") );
+  connect( a, SIGNAL(triggered()), this, SLOT(musrDump()));
+  menu->addAction(a);
+  fActions["musrdump"] = a;
+  if (!fDarkToolBarIcon) { // tool bar icon is not dark, even though the theme is (ubuntu)
+    iconName = QString(":/icons/musrdump-plain.svg");
+    a = new QAction( QIcon( QPixmap(iconName) ), tr( "&Dump Header" ), this );
+    connect( a, SIGNAL( triggered() ), this, SLOT( musrDump() ) );
+  }
+  tb->addAction(a);
+  fActions["musrdump-tb"] = a;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Setup the help menu and the necessary actions.
+ */
+void PTextEdit::setupHelpActions()
+{
+  QMenu *menu = new QMenu( tr( "&Help" ), this );
+  menuBar()->addMenu( menu);
+
+  QAction *a;
+  a = new QAction(tr( "Contents ..." ), this );
+  a->setStatusTip( tr("Help Contents") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( helpContents() ));
+  menu->addAction(a);
+
+  a = new QAction(tr( "Author(s) ..." ), this );
+  a->setStatusTip( tr("Help About") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( helpAbout() ));
+  menu->addAction(a);
+
+  a = new QAction(tr( "About Qt..." ), this );
+  a->setStatusTip( tr("Help About Qt") );
+  connect( a, SIGNAL( triggered() ), this, SLOT( helpAboutQt() ));
+  menu->addAction(a);
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>load a msr-file.
+ *
+ * \param f filename
+ * \param index if == -1, add the file as a new tab, otherwise, replace the contents of the tab at index.
+ */
+void PTextEdit::load( const QString &f, const int index )
+{
+  // check if the file exists
+  if ( !QFile::exists( f ) )
+    return;
+
+  // create a new text edit object
+  PSubTextEdit *edit = new PSubTextEdit( fAdmin );
+  edit->setFont(QFont(fAdmin->getFontName(), fAdmin->getFontSize()));
+
+  // place the text edit object at the appropriate tab position
+  if (index == -1)
+    fTabWidget->addTab( edit, QFileInfo( f ).fileName() );
+  else
+    fTabWidget->insertTab( index, edit, QFileInfo( f ).fileName() );
+  QFile file( f );
+  if ( !file.open( QIODevice::ReadOnly ) )
+    return;
+
+  // add file name to recent file names
+  fAdmin->addRecentFile(f); // keep it in admin
+  fillRecentFiles();        // update menu
+
+  // add the msr-file to the file system watchersssss
+  fFileSystemWatcher->addPath(f);
+
+  // read the file
+  QTextStream ts( &file );
+  QString txt = ts.readAll();
+  edit->setPlainText( txt );
+  doConnections( edit ); // add all necessary signal/slot connections
+
+  // set the tab widget to the current tab
+  fTabWidget->setCurrentIndex(fTabWidget->indexOf(edit));
+  edit->viewport()->setFocus();
+
+  // update the filename mapper
+  fFilenames.remove( edit );
+  fFilenames.insert( edit, f );
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>returns the currently tab selected textedit object.
+ */
+PSubTextEdit *PTextEdit::currentEditor() const
+{
+  if (fTabWidget == nullptr)
+    return nullptr;
+
+  if ( fTabWidget->currentWidget() ) {
+    if (fTabWidget->currentWidget()->inherits( "PSubTextEdit" )) {
+      return dynamic_cast<PSubTextEdit*>(fTabWidget->currentWidget());
+    }
+  }
+
+  return nullptr;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Setup the necessray signal/slot connections for the textedit object.
+ *
+ * \param e textedit object
+ */
+void PTextEdit::doConnections( PSubTextEdit *e )
+{
+//  connect( e, SIGNAL( currentFontChanged( const QFont & ) ),
+//           this, SLOT( fontChanged( const QFont & ) ) );
+
+  connect( e, SIGNAL( textChanged() ), this, SLOT( textChanged() ));
+
+  connect( e, SIGNAL( cursorPositionChanged() ), this, SLOT( currentCursorPosition() ));
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Start the dialog to enter a msr-file title. See also http://lmu.web.psi.ch/musrfit/user/html/user-manual.html#the-title
+ */
+void PTextEdit::insertTitle()
+{
+  currentEditor()->insertTitle();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Start the dialog to enter a msr-file fit-parameter block. See also http://lmu.web.psi.ch/musrfit/user/html/user-manual.html#the-fitparameter-block
+ */
+void PTextEdit::insertParameterBlock()
+{
+  currentEditor()->insertParameterBlock();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Start the dialog to enter a msr-file theory block. See also http://lmu.web.psi.ch/musrfit/user/html/user-manual.html#the-theory-block
+ */
+void PTextEdit::insertTheoryBlock()
+{
+  currentEditor()->insertTheoryBlock();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Insert a selected theory function. See also http://lmu.web.psi.ch/musrfit/user/html/user-manual.html#the-theory-block
+ *
+ * \param a action of the selected theory function
+ */
+void PTextEdit::insertTheoryFunction(QAction *a)
+{
+  currentEditor()->insertTheoryFunction(a->text());
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Start the dialog to enter a msr-file function block. See also http://lmu.web.psi.ch/musrfit/user/html/user-manual.html#the-functions-block
+ */
+void PTextEdit::insertFunctionBlock()
+{
+  currentEditor()->insertFunctionBlock();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Start the dialog to enter a msr-file asymmetry run block. See also http://lmu.web.psi.ch/musrfit/user/html/user-manual.html#the-run-block
+ */
+void PTextEdit::insertAsymRunBlock()
+{
+  currentEditor()->insertAsymRunBlock();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Start the dialog to enter a msr-file single histogram run block. See also http://lmu.web.psi.ch/musrfit/user/html/user-manual.html#the-run-block
+ */
+void PTextEdit::insertSingleHistRunBlock()
+{
+  currentEditor()->insertSingleHistRunBlock();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Start the dialog to enter a msr-file nonMusr run block. See also http://lmu.web.psi.ch/musrfit/user/html/user-manual.html#the-run-block
+ */
+void PTextEdit::insertNonMusrRunBlock()
+{
+  currentEditor()->insertNonMusrRunBlock();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Inserts a default command block. See also http://lmu.web.psi.ch/musrfit/user/html/user-manual.html#the-commands-block
+ */
+void PTextEdit::insertCommandBlock()
+{
+  currentEditor()->insertCommandBlock();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Start the dialog to enter a msr-file Fourier block. See also http://lmu.web.psi.ch/musrfit/user/html/user-manual.html#the-fourier-block
+ */
+void PTextEdit::insertFourierBlock()
+{
+  currentEditor()->insertFourierBlock();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Start the dialog to enter a msr-file plot block. See also http://lmu.web.psi.ch/musrfit/user/html/user-manual.html#the-plot-block
+ */
+void PTextEdit::insertPlotBlock()
+{
+  currentEditor()->insertPlotBlock();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Inserts a default statistics block. See also http://lmu.web.psi.ch/musrfit/user/html/user-manual.html#the-statistic-block
+ */
+void PTextEdit::insertStatisticBlock()
+{
+  currentEditor()->insertStatisticBlock();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT: called when File/New is selected. Will generate an empty tab-textedit field in musredit.
+ */
+void PTextEdit::fileNew()
+{
+  PSubTextEdit *edit = new PSubTextEdit( fAdmin );
+  edit->setFont(QFont(fAdmin->getFontName(), fAdmin->getFontSize()));
+  doConnections( edit );
+  fTabWidget->addTab( edit, tr( "noname" ) );
+  fTabWidget->setCurrentIndex(fTabWidget->indexOf(edit));
+  fFilenames.insert(edit, tr("noname"));
+  edit->viewport()->setFocus();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT: called when File/Open is selected. Will open an msr-/mlog-file. It checks if the file is
+ * already open, and if so will just select the current tab. If you want to reload the file use the
+ * fileReload() slot.
+ */
+void PTextEdit::fileOpen()
+{
+  QStringList flns = QFileDialog::getOpenFileNames( this, tr("Open msr-/mlog-File"),
+                        fLastDirInUse,
+                        tr( "msr-Files (*.msr);;msr-Files (*.msr *.mlog);;All Files (*)" ));
+
+  QStringList::Iterator it = flns.begin();
+  QFileInfo finfo1;
+  bool alreadyOpen = false;
+  int idx;
+
+  // if flns are present, keep the corresponding directory
+  if (flns.size() > 0) {
+    finfo1.setFile(flns.at(0));
+    fLastDirInUse = finfo1.absoluteFilePath();
+  }
+
+  while( it != flns.end() ) {    
+    // check if the file is not already open
+    finfo1.setFile(*it);
+    alreadyOpen = fileAlreadyOpen(finfo1, idx);
+
+    if (!alreadyOpen) {
+      load(*it);
+    } else {
+      fTabWidget->setCurrentIndex(idx);
+      fileReload();
+    }
+
+    ++it;
+  }
+
+  // in case there is a 1st empty tab "noname", remove it
+  QString tabStr = fTabWidget->tabText(0);
+  tabStr.remove('&'); // this is needed since the QTabWidget adds short-cut info as '&' to the tab name
+  if (tabStr == "noname") { // has to be the first, otherwise do nothing
+    fFileSystemWatcher->removePath("noname");
+
+    delete fTabWidget->widget(0);
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>This slot will open the file from the recent file list. If already open, it will reload it.
+ */
+void PTextEdit::fileOpenRecent()
+{
+  QAction *action = qobject_cast<QAction *>(sender());
+
+  if (action) {
+    // check if this file is already open and if so, switch the tab
+    QFileInfo finfo1, finfo2;
+    QString tabFln;
+    bool alreadyOpen = false;
+    QString fln = action->text();
+    fln.remove('&');
+    finfo1.setFile(fln);
+
+    for (int i=0; i<fTabWidget->count(); i++) {
+      tabFln = *fFilenames.find( dynamic_cast<PSubTextEdit*>(fTabWidget->widget(i)));
+      finfo2.setFile(tabFln);
+      if (finfo1.absoluteFilePath() == finfo2.absoluteFilePath()) {
+        alreadyOpen = true;
+        fTabWidget->setCurrentIndex(i);
+        break;
+      }
+    }
+
+    if (!alreadyOpen) {
+      // make sure the file exists
+      if (!finfo1.exists()) {
+        QMessageBox::critical(this, "ERROR", QString("File '%1' does not exist.\nWill not do anything.").arg(fln));
+        return;
+      }
+      load(fln);
+    } else {
+      fileReload();
+    }
+
+    // in case there is a 1st empty tab "noname", remove it
+    fln = fTabWidget->tabText(0);
+    fln.remove("&");
+    if (fln == "noname") { // has to be the first, otherwise do nothing
+      fFileSystemWatcher->removePath("noname");
+
+      delete fTabWidget->widget(0);
+    }
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Will reload the currently selected msr-file.
+ */
+void PTextEdit::fileReload()
+{
+  if ( fFilenames.find( currentEditor() ) == fFilenames.end() ) {
+    QMessageBox::critical(this, "**ERROR**", "Cannot reload a file not previously saved ;-)");
+  } else {
+    int index = fTabWidget->currentIndex();
+    QString fln = *fFilenames.find( currentEditor() );
+    fileClose(false);
+    load(fln, index);
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Will save the currently selected file.
+ */
+void PTextEdit::fileOpenPrefs()
+{
+  QString fln("");
+  QString msg("");
+  QMessageBox msgBox;
+  msgBox.setText("Which Preferences do you want to open?");
+  msgBox.addButton("Default", QMessageBox::AcceptRole);
+  msgBox.addButton("Custom", QMessageBox::AcceptRole);
+  msgBox.setStandardButtons(QMessageBox::Cancel);
+  int result = msgBox.exec();
+  if (result == QMessageBox::Cancel) {
+    return;
+  } else if (result == 0) { // default dir
+    fln = fAdmin->getDefaultPrefPathName();
+    msg = QString("Current Default Preferences Path-Name:\n") + fln;
+    if (QMessageBox::information(this, "Info", msg, QMessageBox::Ok, QMessageBox::Cancel) == QMessageBox::Cancel)
+      return;
+  } else if (result == 1) { // custom dir
+    fln = QFileDialog::getOpenFileName( this, tr("Open Prefs"),
+                        fLastDirInUse,
+                        tr( "xml-Files (*.xml);; All Files (*)" ));
+  }
+
+  if (fAdmin->loadPrefs(fln)) {
+    msg = QString("Prefs from '") + fln + QString("' loaded.");
+    QMessageBox::information(nullptr, "Info", msg);
+  }
+
+  // make sure that dark/plain icon scheme is properly loaded
+  if (getTheme()) {
+    switchMenuIcons();
+    switchToolbarIcons();
+  }
+
+  if (fAdmin->getDarkThemeIconsMenuFlag() != fDarkMenuIcon) {
+    fDarkMenuIcon = !fDarkMenuIcon;
+    switchMenuIcons();
+  }
+
+  if (fAdmin->getDarkThemeIconsToolbarFlag() != fDarkToolBarIcon) {
+    fDarkToolBarIcon = !fDarkToolBarIcon;
+    switchToolbarIcons();
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Will save the currently selected file.
+ */
+void PTextEdit::fileSave()
+{
+  if ( !currentEditor() )
+    return;
+
+  fFileSystemWatcherActive = false;
+
+  if ( *fFilenames.find( currentEditor() ) == QString("noname") ) {
+    fileSaveAs();
+  } else {
+    QFile file( *fFilenames.find( currentEditor() ) );
+    if ( !file.open( QIODevice::WriteOnly ) ) {
+      QMessageBox::critical(this, "**ERROR**", "Couldn't save the file!\nDisk full?\nNo write access?");
+      return;
+    }
+    QTextStream ts( &file );
+    ts << currentEditor()->toPlainText();
+
+    // remove trailing '*' modification indicators
+    QString fln = *fFilenames.find( currentEditor() );
+    fTabWidget->setTabText(fTabWidget->indexOf( currentEditor() ), QFileInfo(fln).fileName());
+  }
+
+  fileSystemWatcherActivation(); // delayed activation of fFileSystemWatcherActive
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Will open a file selector dialog to obtain a file name, and then save the file under the newly
+ * selected file name.
+ */
+void PTextEdit::fileSaveAs()
+{
+  if ( !currentEditor() )
+    return;
+
+  fFileSystemWatcherActive = false;
+
+  QString fn = QFileDialog::getSaveFileName( this,
+                    tr( "Save msr-/mlog-file As" ), *fFilenames.find( currentEditor() ),
+                    tr( "msr-Files (*.msr *.mlog);;All Files (*)" ) );
+  if ( !fn.isEmpty() ) {
+    fFilenames.remove( currentEditor() );
+    fFilenames.insert( currentEditor(), fn );
+    fileSave();
+  }
+
+  fileSystemWatcherActivation(); // delayed activation of fFileSystemWatcherActive
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Will save the current preferences.
+ */
+void PTextEdit::fileSavePrefs()
+{
+  QString fln("");
+  QString msg("");
+  QMessageBox msgBox;
+  msgBox.setText("Which Preferences do you want to open?");
+  msgBox.addButton("Default", QMessageBox::AcceptRole);
+  msgBox.addButton("Custom", QMessageBox::AcceptRole);
+  msgBox.setStandardButtons(QMessageBox::Cancel);
+  int result = msgBox.exec();
+  if (result == QMessageBox::Cancel) {
+    return;
+  } else if (result == 0) { // default dir
+    fln = fAdmin->getDefaultPrefPathName();
+    msg = QString("Current Default Preferences Path-Name:\n") + fln;
+    if (QMessageBox::information(this, "Info", msg, QMessageBox::Ok, QMessageBox::Cancel) == QMessageBox::Cancel)
+      return;
+  } else if (result == 1) { // custom dir
+    fln = QFileDialog::getSaveFileName( this,
+                    tr( "Save Prefs As" ), "musredit_startup.xml",
+                    tr( "xml-Files (*.xml);;All Files (*)" ) );
+  }
+
+  if ( !fln.isEmpty() ) {
+    fAdmin->savePrefs(fln);
+    msg = QString("Prefs to '") + fln + QString("' saved.");
+    QMessageBox::information(nullptr, "Info", msg);
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Will call a print dialog and print the msr-file.
+ */
+void PTextEdit::filePrint()
+{
+  if ( !currentEditor() )
+    return;
+#ifndef QT_NO_PRINTER
+  QPrinter printer( QPrinter::HighResolution );
+  printer.setFullPage(true);
+  QPrintDialog dialog(&printer, this);
+  if (dialog.exec()) { // printer dialog
+    statusBar()->showMessage( "Printing..." );
+
+    QPainter p( &printer );
+    // Check that there is a valid device to print to.
+    if ( !p.device() )
+      return;
+
+    QFont font( currentEditor()->QWidget::font() );
+    font.setPointSize( 10 ); // we define 10pt to be a nice base size for printing
+    p.setFont( font );
+
+    int yPos        = 0;                  // y-position for each line
+    QFontMetrics fm = p.fontMetrics();
+    int dpiy = printer.logicalDpiY();
+    int margin = static_cast<int>( (2/2.54)*dpiy ); // 2 cm margins
+
+    // print msr-file
+    QString fln = *fFilenames.find(currentEditor());
+    QString header1(fln);
+    QFileInfo flnInfo(fln);
+    QString header2 = QString("last modified: ") + flnInfo.lastModified().toString("dd.MM.yyyy - hh:mm:ss");
+    QString line("-------------------------------------");
+    QStringList strList = currentEditor()->toPlainText().split("\n");
+    for (QStringList::Iterator it = strList.begin(); it != strList.end(); ++it) {
+      // new page needed?
+      if ( margin + yPos > printer.height() - margin ) {
+        printer.newPage();             // no more room on this page
+        yPos = 0;                      // back to top of page
+      }
+
+      if (yPos == 0) { // print header
+        font.setPointSize( 8 );
+        p.setFont( font );
+
+        p.drawText(margin, margin+yPos, printer.width(), fm.lineSpacing(),
+                   Qt::TextExpandTabs | Qt::TextDontClip, header1);
+        yPos += fm.lineSpacing();
+        p.drawText(margin, margin+yPos, printer.width(), fm.lineSpacing(),
+                   Qt::TextExpandTabs | Qt::TextDontClip, header2);
+        yPos += fm.lineSpacing();
+        p.drawText(margin, margin+yPos, printer.width(), fm.lineSpacing(),
+                   Qt::TextExpandTabs | Qt::TextDontClip, line);
+        yPos += 1.5*fm.lineSpacing();
+
+        font.setPointSize( 10 );
+        p.setFont( font );
+      }
+
+      // print data
+      p.drawText(margin, margin+yPos, printer.width(), fm.lineSpacing(),
+                 Qt::TextExpandTabs | Qt::TextDontClip, *it);
+      yPos += fm.lineSpacing();
+    }
+
+    p.end();
+  }
+#endif
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Will remove a textedit tab from musredit. Depending on check it will done with or without checking
+ * if the file has been saved before.
+ *
+ * \param check if set to true, a warning dialog will popup if the file is not saved yet.
+ */
+void PTextEdit::fileClose(const bool check)
+{
+  // first check if there is any tab present
+  if (fTabWidget->count()==0) // no tabs present
+    return;
+
+  // check if the has modification
+  int idx = fTabWidget->currentIndex();
+
+  if ((fTabWidget->tabText(idx).indexOf("*")>0) && check) {
+    int result = QMessageBox::warning(this, "**WARNING**", 
+                   "Do you really want to close this file.\nChanges will be lost",
+                   "Close", "Cancel");
+    if (result == 1) // Cancel
+      return;
+  }
+
+  QString str = *fFilenames.find(currentEditor());
+  fFileSystemWatcher->removePath(str);
+
+  delete currentEditor();
+
+  if ( currentEditor() )
+    currentEditor()->viewport()->setFocus();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Removes all textedit tabs from musredit. It checks if the files haven't been saved, and if so it will
+ * popup a warning dialog.
+ */
+void PTextEdit::fileCloseAll()
+{
+  // check if any editor tab is present, if not: get out of here
+  if ( !currentEditor() )
+    return;
+
+  // check if there are any unsaved tabs
+  for (int i=0; i<fTabWidget->count(); i++) {
+    if (fTabWidget->tabText(i).indexOf("*") > 0) {
+      int result = QMessageBox::warning(this, "**WARNING**",
+                     "Do you really want to close all files.\nChanges of unsaved files will be lost",
+                     "Close", "Cancel");
+      if (result == 1) // Cancel
+        return;
+      break;
+    }
+  }
+
+  // close all editor tabs
+  QString str;
+  do {
+    // remove file from file system watcher
+    str = *fFilenames.find(currentEditor());
+    fFileSystemWatcher->removePath(str);
+
+    delete currentEditor();
+
+    if ( currentEditor() )
+      currentEditor()->viewport()->setFocus();
+  } while ( currentEditor() );
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Will close all textedit tabs but the selected one. It checks if the files haven't been saved, and if so it will
+ * popup a warning dialog.
+ */
+void PTextEdit::fileCloseAllOthers()
+{
+  // check if any editor tab is present, if not: get out of here
+  if ( !currentEditor() )
+    return;
+
+  // check if there are any unsaved tabs
+  for (int i=0; i<fTabWidget->count(); i++) {
+    if (fTabWidget->tabText(i).indexOf("*") > 0) {
+      int result = QMessageBox::warning(this, "**WARNING**",
+                     "Do you really want to close all files.\nChanges of unsaved files will be lost",
+                     "Close", "Cancel");
+      if (result == 1) // Cancel
+        return;
+      break;
+    }
+  }
+
+  // keep label of the current editor
+  QString label = fTabWidget->tabText(fTabWidget->currentIndex());
+
+  // check if only the current editor is present. If yes: nothing to be done
+  if (fTabWidget->count() == 1)
+    return;
+
+  // close all editor tabs
+  int i=0;
+  QString str;
+  do {
+    if (fTabWidget->tabText(i) != label) {
+      // remove file from file system watcher
+      str = *fFilenames.find(dynamic_cast<PSubTextEdit*>(fTabWidget->widget(i)));
+      fFileSystemWatcher->removePath(str);
+
+      delete fTabWidget->widget(i);
+    } else {
+      i++;
+    }
+  } while ( fTabWidget->count() > 1 );
+
+  currentEditor()->viewport()->setFocus();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Will quit musredit.
+ */
+void PTextEdit::fileExit()
+{
+  // check if there are still some modified files open
+  for (int i=0; i < fTabWidget->count(); i++) {
+    if (fTabWidget->tabText(i).indexOf("*") > 0) {
+      int result = QMessageBox::warning(this, "**WARNING**", 
+                     "Do you really want to exit from the applcation.\nChanges will be lost",
+                     "Exit", "Cancel");
+      if (result == 1) // Cancel
+        return;
+      break;
+    }
+  }
+
+  qApp->quit();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Text undo of the current textedit tab.
+ */
+void PTextEdit::editUndo()
+{
+  if ( !currentEditor() )
+    return;
+  currentEditor()->undo();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Text redo of the current textedit tab
+ */
+void PTextEdit::editRedo()
+{
+  if ( !currentEditor() )
+    return;
+  currentEditor()->redo();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Select all text of the current textedit tab.
+ */
+void PTextEdit::editSelectAll()
+{
+  if ( !currentEditor() )
+    return;
+  currentEditor()->selectAll();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Cut the selection of the current textedit tab.
+ */
+void PTextEdit::editCut()
+{
+  if ( !currentEditor() )
+    return;
+  currentEditor()->cut();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Copy the selection of the current textedit tab.
+ */
+void PTextEdit::editCopy()
+{
+  if ( !currentEditor() )
+    return;
+  currentEditor()->copy();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Paste at the cursor position of the current textedit tab.
+ */
+void PTextEdit::editPaste()
+{
+  if ( !currentEditor() )
+    return;
+  currentEditor()->paste();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Starts a find dialog, and searches for a find string.
+ */
+void PTextEdit::editFind()
+{
+  if ( !currentEditor() )
+    return;
+
+  // check if first time called, and if yes create find and replace data structure
+  if (fFindReplaceData == nullptr) {
+    fFindReplaceData = new PFindReplaceData();
+    fFindReplaceData->findText = QString("");
+    fFindReplaceData->replaceText = QString("");
+    fFindReplaceData->caseSensitive = true;
+    fFindReplaceData->wholeWordsOnly = false;
+    fFindReplaceData->fromCursor = true;
+    fFindReplaceData->findBackwards = false;
+    fFindReplaceData->selectedText = false;
+    fFindReplaceData->promptOnReplace = true;
+  }
+
+  if (fFindReplaceData == nullptr) {
+    QMessageBox::critical(this, "**ERROR**", "Couldn't invoke find data structure, sorry :-(", QMessageBox::Ok, QMessageBox::NoButton);
+    return;
+  }
+
+  PFindDialog *dlg = new PFindDialog(fFindReplaceData, currentEditor()->textCursor().hasSelection());
+  if (dlg == nullptr) {
+    QMessageBox::critical(this, "**ERROR**", "Couldn't invoke find dialog, sorry :-(", QMessageBox::Ok, QMessageBox::NoButton);
+    return;
+  }
+
+  dlg->exec();
+
+  if (dlg->result() != QDialog::Accepted) {
+    delete dlg;
+    return;
+  }
+
+  fFindReplaceData = dlg->getData();
+
+  delete dlg;
+  dlg = nullptr;
+
+  // try to find the search text
+  if (!fFindReplaceData->fromCursor)
+    currentEditor()->textCursor().setPosition(0);
+
+  QTextDocument::FindFlags flags;
+  if (fFindReplaceData->caseSensitive)
+    flags |= QTextDocument::FindCaseSensitively;
+  else if (fFindReplaceData->findBackwards)
+    flags |= QTextDocument::FindBackward;
+  else if (fFindReplaceData->wholeWordsOnly)
+    flags |= QTextDocument::FindWholeWords;
+
+  currentEditor()->find(fFindReplaceData->findText, flags);
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Searches for a find string in the forward direction.
+ */
+void PTextEdit::editFindNext()
+{
+  QTextDocument::FindFlags flags;
+  if (fFindReplaceData->caseSensitive)
+    flags |= QTextDocument::FindCaseSensitively;
+  else if (fFindReplaceData->wholeWordsOnly)
+    flags |= QTextDocument::FindWholeWords;
+
+  currentEditor()->find(fFindReplaceData->findText, flags);
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Searches for a find string in the backward direction.
+ */
+void PTextEdit::editFindPrevious()
+{
+  QTextDocument::FindFlags flags;
+  if (fFindReplaceData->caseSensitive)
+    flags |= QTextDocument::FindCaseSensitively;
+  else if (fFindReplaceData->wholeWordsOnly)
+    flags |= QTextDocument::FindWholeWords;
+
+  flags |= QTextDocument::FindBackward;
+
+  currentEditor()->find(fFindReplaceData->findText, flags);
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Starts a find/replace dialog, and searches for a find string and replaces it depending of the replace options.
+ */
+void PTextEdit::editFindAndReplace()
+{
+  if ( !currentEditor() )
+    return;
+
+  // check if first time called, and if yes create find and replace data structure
+  if (fFindReplaceData == nullptr) {
+    fFindReplaceData = new PFindReplaceData();
+    fFindReplaceData->findText = QString("");
+    fFindReplaceData->replaceText = QString("");
+    fFindReplaceData->caseSensitive = true;
+    fFindReplaceData->wholeWordsOnly = false;
+    fFindReplaceData->fromCursor = true;
+    fFindReplaceData->findBackwards = false;
+    fFindReplaceData->selectedText = false;
+    fFindReplaceData->promptOnReplace = true;
+  }
+
+  if (fFindReplaceData == nullptr) {
+    QMessageBox::critical(this, "**ERROR**", "Couldn't invoke find&replace data structure, sorry :-(", QMessageBox::Ok, QMessageBox::NoButton);
+    return;
+  }
+
+  PReplaceDialog *dlg = new PReplaceDialog(fFindReplaceData, currentEditor()->textCursor().hasSelection());
+  if (dlg == nullptr) {
+    QMessageBox::critical(this, "**ERROR**", "Couldn't invoke find&replace dialog, sorry :-(", QMessageBox::Ok, QMessageBox::NoButton);
+    return;
+  }
+
+  dlg->exec();
+
+  if (dlg->result() != QDialog::Accepted) {
+    delete dlg;
+    return;
+  }
+
+  fFindReplaceData = dlg->getData();
+
+  delete dlg;
+  dlg = nullptr;
+
+  if (fFindReplaceData->promptOnReplace)  {
+    editFindNext();
+
+    PReplaceConfirmationDialog confirmDlg(this);
+
+    // connect all the necessary signals/slots
+    QObject::connect(confirmDlg.fReplace_pushButton, SIGNAL(clicked()), this, SLOT(replace()));
+    QObject::connect(confirmDlg.fReplaceAndClose_pushButton, SIGNAL(clicked()), this, SLOT(replaceAndClose()));
+    QObject::connect(confirmDlg.fReplaceAll_pushButton, SIGNAL(clicked()), this, SLOT(replaceAll()));
+    QObject::connect(confirmDlg.fFindNext_pushButton, SIGNAL(clicked()), this, SLOT(editFindNext()));
+    QObject::connect(this, SIGNAL(close()), &confirmDlg, SLOT(accept()));
+
+    confirmDlg.exec();
+  } else {
+    replaceAll();
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Comment a selection, i.e. add a '#' character in front of each line of the selection.
+ * (Multiple selections not yet supported).
+ */
+void PTextEdit::editComment()
+{
+  if ( !currentEditor() )
+    return;
+
+  
+  QTextCursor curs = currentEditor()->textCursor();
+  
+  if (curs.hasComplexSelection()) { // multiple selections
+    // multiple selections (STILL MISSING)
+  } else if (curs.hasSelection()) { // simple selection
+    int pos = curs.position();
+    int secStart = curs.selectionStart(); // keep start position of the selection
+    int secEnd = curs.selectionEnd();     // keep end position of the selection
+    curs.clearSelection();
+    curs.setPosition(secStart);           // set the anchor to the start of the selection
+    curs.movePosition(QTextCursor::StartOfBlock);
+    do {
+      curs.insertText("#");
+    } while (curs.movePosition(QTextCursor::NextBlock) && (curs.position() <= secEnd));
+    curs.setPosition(pos+1);
+  } else { // no selection
+    int pos = curs.position();
+    curs.clearSelection();
+    curs.movePosition(QTextCursor::StartOfLine);
+    curs.insertText("#");
+    curs.setPosition(pos+1);
+  }  
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Uncomment a selection, i.e. remove a '#' character in front of each line of the selection.
+ * (Multiple selections not yet supported).
+ */
+void PTextEdit::editUncomment()
+{
+  if ( !currentEditor() )
+    return;
+
+
+  QTextCursor curs = currentEditor()->textCursor();
+
+  if (curs.hasComplexSelection()) {
+    // multiple selections (STILL MISSING)
+  } else if (curs.hasSelection()) {
+    int pos = curs.position();
+    int secStart = curs.selectionStart(); // keep start position of the selection
+    int secEnd = curs.selectionEnd();     // keep end position of the selection
+    curs.clearSelection();
+    curs.setPosition(secStart);           // set the anchor to the start of the selection
+    curs.movePosition(QTextCursor::StartOfBlock);
+    while (curs.position() < secEnd) {
+      QString line = curs.block().text();
+      if (line.startsWith("#")) {
+        line.remove(0, 1);
+        curs.select(QTextCursor::BlockUnderCursor);
+        curs.removeSelectedText();        
+        curs.insertText("\n"+line);
+        pos -= 1;
+      }
+      curs.movePosition(QTextCursor::NextBlock);
+    }
+    curs.setPosition(pos);
+    currentEditor()->setTextCursor(curs); // needed to update document cursor
+  } else { // no selection
+    int pos = curs.position();
+    curs.clearSelection();
+    curs.movePosition(QTextCursor::StartOfLine, QTextCursor::MoveAnchor, 1);
+    QString line = curs.block().text();
+    if (line.startsWith("#")) {
+      line.remove(0, 1);
+      curs.select(QTextCursor::BlockUnderCursor);
+      curs.removeSelectedText();
+      if (currentEditor()->textCursor().columnNumber() == 0)
+        curs.insertText(line);
+      else
+        curs.insertText("\n"+line);
+      pos -= 1;
+    }
+    curs.setPosition(pos);
+    currentEditor()->setTextCursor(curs); // needed to update document cursor
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Changes the font.
+ *
+ * \param f font name
+ */
+void PTextEdit::textFamily( const QString &f )
+{
+  fAdmin->setFontName(f);
+
+  if ( currentEditor() == nullptr )
+    return;
+
+  currentEditor()->setFont(QFont(f,fAdmin->getFontSize()));
+  currentEditor()->viewport()->setFocus();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Changes the font size.
+ *
+ * \param p font size in points.
+ */
+void PTextEdit::textSize( const QString &p )
+{
+  fAdmin->setFontSize(p.toInt());
+
+  if ( currentEditor() == nullptr)
+    return;
+
+  currentEditor()->setFont(QFont(fAdmin->getFontName(), p.toInt()));
+  currentEditor()->viewport()->setFocus();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * @brief PTextEdit::musrWiz
+ */
+void PTextEdit::musrWiz()
+{
+  QString cmd = fAdmin->getExecPath() + "/musrWiz";
+#if defined(Q_OS_DARWIN) || defined(Q_OS_MAC)
+  cmd = QString("/Applications/musrWiz.app/Contents/MacOS/musrWiz");
+#endif
+  QString workDir = "./"; // think about it!!
+  QStringList arg;
+  arg << "--log";
+
+  QProcess *proc = new QProcess(this);
+  if (proc == nullptr) {
+    QMessageBox::critical(nullptr, "**ERROR**", "Couldn't invoke QProcess!");
+    return;
+  }
+
+  // handle return status of musrWiz
+  connect(proc, static_cast<void(QProcess::*)(int, QProcess::ExitStatus)>(&QProcess::finished),
+          [=](int exitCode, QProcess::ExitStatus exitStatus){ exitStatusMusrWiz(exitCode, exitStatus); });
+
+  // make sure that the system environment variables are properly set
+  QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+  env.insert("LD_LIBRARY_PATH", env.value("ROOTSYS") + "/lib:" + env.value("LD_LIBRARY_PATH"));
+  proc->setProcessEnvironment(env);
+  proc->setWorkingDirectory(workDir);
+  proc->start(cmd, arg);
+  if (!proc->waitForStarted()) {
+    // error handling
+    QString msg(tr("Could not execute the output command: ")+cmd[0]);
+    QMessageBox::critical( nullptr,
+                           tr("Fatal error"),
+                           msg,
+                           tr("Quit") );
+    return;
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>calls musrfit --chisq-only <msr-file>.
+ */
+void PTextEdit::musrCalcChisq()
+{
+  if ( !currentEditor() )
+    return;
+
+  int result = 0;
+  int fittype = currentEditor()->getFitType();
+  if (fAdmin->getEstimateN0Flag() && ((fittype==0) || (fittype==4)))
+    result = QMessageBox::question(this, "Estimate N0 active",
+                           "Do you wish a chisq/mlh evaluation with an automatic N0 estimate?");
+
+  QString tabLabel = fTabWidget->tabText(fTabWidget->currentIndex());
+  if (tabLabel == "noname") {
+    QMessageBox::critical(this, "**ERROR**", "For a fit a real msr-file is needed.");
+    return;
+  } else if (tabLabel == "noname*") {
+    fileSaveAs();
+  } else if (tabLabel.indexOf("*") > 0) {
+    fileSave();
+  }
+
+  QVector<QString> cmd;
+  QString str;
+  str = fAdmin->getExecPath() + "/musrfit";
+
+  cmd.append(str);
+  cmd.append(QFileInfo(*fFilenames.find( currentEditor())).fileName() );
+  cmd.append("--chisq-only");
+  if (fAdmin->getEstimateN0Flag() && (result == QMessageBox::Yes) && ((fittype==0) || (fittype==4)))
+    cmd.append("--estimateN0");
+  PFitOutputHandler fitOutputHandler(QFileInfo(*fFilenames.find( currentEditor() )).absolutePath(), cmd);
+  fitOutputHandler.setModal(true);
+  fitOutputHandler.exec();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>calls musrfit <options> <msr-file>. <options> can be set in the MusrFit/Preferences.
+ */
+void PTextEdit::musrFit()
+{
+  if ( !currentEditor() )
+    return;
+
+  QString tabLabel = fTabWidget->tabText(fTabWidget->currentIndex());
+  if (tabLabel == "noname") {
+    QMessageBox::critical(this, "**ERROR**", "For a fit a real msr-file is needed.");
+    return;
+  } else if (tabLabel == "noname*") {
+    fileSaveAs();
+  } else if (tabLabel.indexOf("*") > 0) {
+    fileSave();
+  }
+
+  QVector<QString> cmd;
+  QString str;
+  str = fAdmin->getExecPath() + "/musrfit";
+
+  cmd.append(str);
+  cmd.append(QFileInfo(*fFilenames.find( currentEditor())).fileName() );
+
+  // check if keep minuit2 output is wished
+  if (fAdmin->getKeepMinuit2OutputFlag())
+    cmd.append("--keep-mn2-output");
+
+  // check if title of the data file should be used to replace the msr-file title
+  if (fAdmin->getTitleFromDataFileFlag())
+    cmd.append("--title-from-data-file");
+
+  // check if dump files are wished
+  if (fAdmin->getDumpAsciiFlag()) {
+    cmd.append("--dump");
+    cmd.append("ascii");
+  }
+  if (fAdmin->getDumpRootFlag()) {
+    cmd.append("--dump");
+    cmd.append("root");
+  }
+
+  // check estimate N0 flag
+  if (fAdmin->getEstimateN0Flag()) {
+    cmd.append("--estimateN0");
+  }
+
+  // check per-run-block-chisq flag
+  if (fAdmin->getChisqPerRunBlockFlag()) {
+    cmd.append("--per-run-block-chisq");
+  }
+
+  // add timeout
+  cmd.append("--timeout");
+  QString numStr;
+  numStr.setNum(fAdmin->getTimeout());
+  cmd.append(numStr);
+
+  PFitOutputHandler fitOutputHandler(QFileInfo(*fFilenames.find( currentEditor() )).absolutePath(), cmd);
+  fitOutputHandler.setModal(true);
+  fFileSystemWatcherActive = false;
+  fitOutputHandler.exec();
+
+  // handle the reloading of the files
+
+  // get current file name
+  QString currentFileName = *fFilenames.find( currentEditor() );
+  QString complementFileName;
+  // check if it is a msr-, mlog-, or another file
+  int idx;
+  if ((idx = currentFileName.indexOf(".msr")) > 0) { // msr-file
+    complementFileName = currentFileName;
+    complementFileName.replace(idx, 5, ".mlog");
+  } else if ((idx = currentFileName.indexOf(".mlog")) > 0) { // mlog-file
+    complementFileName = currentFileName;
+    complementFileName.replace(idx, 5, ".msr ");
+    complementFileName = complementFileName.trimmed();
+  } else { // neither a msr- nor a mlog-file
+    QMessageBox::information( this, "musrFit",
+    "This is neither a msr- nor a mlog-file, hence no idea what to be done.\n",
+    QMessageBox::Ok );
+    return;
+  }
+
+  int currentIdx = fTabWidget->currentIndex();
+
+  // reload current file
+  fileClose();
+  load(currentFileName, currentIdx);
+
+  // check if swap file is open as well, and if yes, reload it
+  idx = -1;
+  for (int i=0; i<fTabWidget->count(); i++) {
+    if (fTabWidget->tabText(i).indexOf(complementFileName) >= 0) {
+      idx = i;
+      break;
+    }
+  }
+  if (idx >= 0) { // complement file is open
+    fTabWidget->setCurrentIndex(idx);
+    fileClose();
+    load(complementFileName, idx);
+    fTabWidget->setCurrentIndex(currentIdx);
+  }
+
+  fileSystemWatcherActivation();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Starts a msr2data input dialog which collects all the necessary data before calling msr2data.
+ */
+void PTextEdit::musrMsr2Data()
+{
+  if (fMsr2DataParam == nullptr) {
+    fMsr2DataParam = new PMsr2DataParam();
+    *fMsr2DataParam = fAdmin->getMsr2DataParam();
+  }
+
+  // init fMsr2DataParam
+  fMsr2DataParam->keepMinuit2Output = fAdmin->getKeepMinuit2OutputFlag();
+  fMsr2DataParam->titleFromDataFile = fAdmin->getTitleFromDataFileFlag();
+  fMsr2DataParam->estimateN0 = fAdmin->getEstimateN0Flag();
+  fMsr2DataParam->perRunBlockChisq = fAdmin->getChisqPerRunBlockFlag();
+
+  PMsr2DataDialog *dlg = new PMsr2DataDialog(fMsr2DataParam, fAdmin->getHelpUrl("msr2data"));
+
+  if (dlg == nullptr) {
+    QMessageBox::critical(this, "**ERROR**", "Couldn't invoke msr2data dialog, sorry :-(", QMessageBox::Ok, QMessageBox::NoButton);
+    return;
+  }
+
+  if (dlg->exec() == QDialog::Accepted) {
+    QString runList;
+    QString runListFileName;
+    QFileInfo fi;
+    QString str;
+    int i, end;   
+    QStringList list;
+    bool ok;
+
+    fMsr2DataParam = dlg->getMsr2DataParam();
+    fAdmin->setKeepMinuit2OutputFlag(fMsr2DataParam->keepMinuit2Output);
+    fAdmin->setTitleFromDataFileFlag(fMsr2DataParam->titleFromDataFile);
+    fAdmin->setEstimateN0Flag(fMsr2DataParam->estimateN0);
+    fAdmin->setChisqPerRunBlockFlag(fMsr2DataParam->perRunBlockChisq);
+
+    // analyze parameters
+    switch (dlg->getRunTag()) {
+      case -1: // not valid
+        QMessageBox::critical(this, "**ERROR**",
+           "No valid run list input found :-(\nCannot do anything.",
+           QMessageBox::Ok, QMessageBox::NoButton);
+        return;
+        break;
+      case 0:  // run list
+        runList = fMsr2DataParam->runList;
+        break;
+      case 1:  // run list file name
+        runListFileName = fMsr2DataParam->runListFileName;
+        fi.setFile(QFileInfo(*fFilenames.find( currentEditor() )).absolutePath() + "/" + runListFileName);
+        if (!fi.exists()) {
+          str = QString("Run List File '%1' doesn't exist.").arg(runListFileName);
+          QMessageBox::critical(this, "**ERROR**",
+                str, QMessageBox::Ok, QMessageBox::NoButton);
+          return;
+        }
+        break;
+      default: // never should reach this point
+        QMessageBox::critical(this, "**ERROR**",
+           "No idea how you could reach this point.\nPlease contact the developers.",
+           QMessageBox::Ok, QMessageBox::NoButton);
+        return;
+        break;
+    }
+
+    // form command
+    QVector<QString> cmd;
+
+    str = fAdmin->getExecPath() + "/msr2data";
+    cmd.append(str);
+
+    // run list argument
+    switch (dlg->getRunTag()) {
+      case 0:
+        end = 0;
+        while (!runList.section(' ', end, end, QString::SectionSkipEmpty).isEmpty()) {
+          end++;
+        }
+        // first element
+        if (end == 1) {
+          str = "[" + runList + "]";
+          cmd.append(str);
+        } else {
+          str = "[" + runList.section(' ', 0, 0, QString::SectionSkipEmpty);
+          cmd.append(str);
+          // middle elements
+          for (i=1; i<end-1; i++) {
+            cmd.append(runList.section(' ', i, i, QString::SectionSkipEmpty));
+          }
+          // last element
+          str = runList.section(' ', end-1, end-1, QString::SectionSkipEmpty) + "]";
+          cmd.append(str);
+        }
+        break;
+      case 1:
+        cmd.append(runListFileName);
+        break;
+      default:
+        break;
+    }
+
+    // file extension
+    str = fMsr2DataParam->msrFileExtension;
+    if (str.isEmpty())
+      cmd.append("");
+    else
+      cmd.append(str);
+
+    // options
+
+    // parameter export list
+    if (!fMsr2DataParam->paramList.isEmpty()) {
+      cmd.append("paramList");
+      QStringList list = fMsr2DataParam->paramList.split(' ');
+      for (int i=0; i<list.size(); i++)
+        cmd.append(list[i]);
+    }
+
+    // no header flag?
+    if (!fMsr2DataParam->writeDbHeader)
+      cmd.append("noheader");
+
+    // ignore data header info flag present?
+    if (fMsr2DataParam->ignoreDataHeaderInfo)
+      cmd.append("nosummary");
+
+    // template run no fitting but: (i) no fit only flag, (ii) no create msr-file only flag
+    if ((fMsr2DataParam->templateRunNo != -1) && !fMsr2DataParam->fitOnly && !fMsr2DataParam->createMsrFileOnly) {
+      str = QString("%1").arg(fMsr2DataParam->templateRunNo);
+      str = "fit-" + str;
+      if (!fMsr2DataParam->chainFit) {
+        str += "!";
+      }
+      cmd.append(str);
+    }
+
+    // template run no AND create msr-file only flag
+    if ((fMsr2DataParam->templateRunNo != -1) && fMsr2DataParam->createMsrFileOnly) {
+      str = QString("%1").arg(fMsr2DataParam->templateRunNo);
+      str = "msr-" + str;
+      cmd.append(str);
+    }
+
+    // fit only
+    if (fMsr2DataParam->fitOnly) {
+      str = "fit";
+      cmd.append(str);
+    }
+
+    // keep minuit2 output
+    if (fMsr2DataParam->keepMinuit2Output) {
+      cmd.append("-k");
+    }
+
+    // replace msr-file title by data file title. Add flag only if a fit is done
+    if (fMsr2DataParam->titleFromDataFile && (fMsr2DataParam->fitOnly || fMsr2DataParam->templateRunNo != -1)) {
+      cmd.append("-t");
+    }
+
+    // estimate N0 (makes sence for single histo and muMinus fits only). Add flag only if a fit is done
+    if (fMsr2DataParam->estimateN0 && (fMsr2DataParam->fitOnly || fMsr2DataParam->templateRunNo != -1)) {
+      cmd.append("-e");
+    }
+
+    // write per-run-block chisq. Add flag only if a fit is done
+    if (fMsr2DataParam->perRunBlockChisq && (fMsr2DataParam->fitOnly || fMsr2DataParam->templateRunNo != -1)) {
+      cmd.append("-p");
+    }
+
+    // DB output wished
+    if (!fMsr2DataParam->dbOutputFileName.isEmpty()) {
+      str = "-o" + fMsr2DataParam->dbOutputFileName;
+      cmd.append(str);
+    }
+
+    // write column data
+    if (fMsr2DataParam->writeColumnData) {
+      cmd.append("data");
+    }
+
+    // global flag check
+    if (fMsr2DataParam->global) {
+      cmd.append("global");
+    }
+
+    // global+ flag check
+    if (fMsr2DataParam->globalPlus) {
+      if (fMsr2DataParam->chainFit) {
+        cmd.append("global+");
+      } else {
+        cmd.append("global+!");
+      }
+    }
+
+    // recreate db file
+    if (fMsr2DataParam->recreateDbFile) {
+      cmd.append("new");
+    }
+
+    // if NO tab is present use the local directory
+    QString workDir = QString("./");
+    if (fTabWidget->count() != 0) {
+      workDir = QFileInfo(*fFilenames.find( currentEditor() )).absolutePath();
+    }
+    PFitOutputHandler fitOutputHandler(workDir, cmd);
+    fitOutputHandler.setModal(true);
+    fFileSystemWatcherActive = false;
+    fitOutputHandler.exec();
+
+    // check if it is necessary to load msr-files
+    if (fMsr2DataParam->openFilesAfterFitting) {
+      QString fln;
+      QFile *file;
+      QTextStream *stream;
+      QFileInfo finfo;
+      bool alreadOpen=false;
+      int idx=0;
+
+      if (!fMsr2DataParam->global) { // standard fits
+        switch(dlg->getRunTag()) {
+          case 0: // run list
+            list = getRunList(runList, ok);
+            if (!ok)
+              return;
+            for (int i=0; i<list.size(); i++) {
+              fln = list[i];
+              if (fMsr2DataParam->msrFileExtension.isEmpty())
+                fln += ".msr";
+              else
+                fln += fMsr2DataParam->msrFileExtension + ".msr";
+
+              workDir = QString("./");
+              if (fTabWidget->count() != 0) {
+                workDir = QFileInfo(*fFilenames.find( currentEditor() )).absolutePath();
+              }
+              finfo.setFile(workDir + "/" + fln);
+              alreadOpen = fileAlreadyOpen(finfo, idx);
+              if (!alreadOpen) {
+                load(workDir + "/" + fln);
+              } else {
+                fTabWidget->setCurrentIndex(idx);
+                fileReload();
+              }
+            }
+            break;
+          case 1: // run list file
+            file = new QFile(QFileInfo(*fFilenames.find( currentEditor() )).absolutePath() + "/" + fMsr2DataParam->runListFileName);
+            if (!file->open(QIODevice::ReadOnly)) {
+              str = QString("Couldn't open run list file %1, sorry.").arg(fMsr2DataParam->runListFileName);
+              QMessageBox::critical(this, "**ERROR**", str.toLatin1(), QMessageBox::Ok, QMessageBox::NoButton);
+              return;
+            }
+
+            stream = new QTextStream(file);
+            while ( !stream->atEnd() ) {
+              str = stream->readLine(); // line of text excluding '\n'
+              str = str.trimmed();
+              if (!str.isEmpty() && !str.startsWith("#") && !str.startsWith("run", Qt::CaseInsensitive)) {
+                fln = str.section(' ', 0, 0, QString::SectionSkipEmpty);
+                if (fMsr2DataParam->msrFileExtension.isEmpty())
+                  fln += ".msr";
+                else
+                  fln += fMsr2DataParam->msrFileExtension + ".msr";
+
+                workDir = QString("./");
+                if (fTabWidget->count() != 0) {
+                  workDir = QFileInfo(*fFilenames.find( currentEditor() )).absolutePath();
+                }
+                finfo.setFile(workDir + "/" + fln);
+                alreadOpen = fileAlreadyOpen(finfo, idx);
+                if (!alreadOpen) {
+                  load(workDir + "/" + fln);
+                } else {
+                  fTabWidget->setCurrentIndex(idx);
+                  fileReload();
+                }
+              }
+            }
+
+            file->close();
+
+            // clean up
+            delete stream;
+            delete file;
+            break;
+          default:
+            break;
+        }
+      } else { // global tag set
+        // get the first run number needed to build the global fit file name
+        fln = QString("");
+        switch(dlg->getRunTag()) {
+          case 0: // run list
+            fln = runList.section(" ", 0, 0, QString::SectionSkipEmpty) + QString("+global") + fMsr2DataParam->msrFileExtension + QString(".msr");
+            break;
+          case 1: // run list file name
+            file = new QFile(QFileInfo(*fFilenames.find( currentEditor() )).absolutePath() + "/" + fMsr2DataParam->runListFileName);
+            if (!file->open(QIODevice::ReadOnly)) {
+              str = QString("Couldn't open run list file %1, sorry.").arg(fMsr2DataParam->runListFileName);
+              QMessageBox::critical(this, "**ERROR**", str.toLatin1(), QMessageBox::Ok, QMessageBox::NoButton);
+              return;
+            }
+
+            stream = new QTextStream(file);
+            while ( !stream->atEnd() ) {
+              str = stream->readLine(); // line of text excluding '\n'
+              str = str.trimmed();
+              if (!str.isEmpty() && !str.startsWith("#") && !str.startsWith("run", Qt::CaseInsensitive)) {
+                fln = str.section(' ', 0, 0, QString::SectionSkipEmpty);
+                break;
+              }
+            }
+
+            file->close();
+
+            fln += QString("+global") + fMsr2DataParam->msrFileExtension + QString(".msr");
+
+            // clean up
+            delete stream;
+            delete file;
+            break;
+          default:
+            break;
+        }
+
+        load(QFileInfo(*fFilenames.find( currentEditor() )).absolutePath() + "/" + fln);
+      }
+    }
+  }
+
+  delete dlg;
+  dlg = nullptr;
+
+  fileSystemWatcherActivation();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Calls musrview <msr-file>.
+ */
+void PTextEdit::musrView()
+{
+  if ( !currentEditor() )
+    return;
+
+  QString tabLabel = fTabWidget->tabText(fTabWidget->currentIndex());
+  if (tabLabel == "noname") {
+    QMessageBox::critical(this, "**ERROR**", "For a view a real mlog/msr-file is needed.");
+    return;
+  } else if (tabLabel == "noname*") {
+    fileSaveAs();
+  } else if (tabLabel.indexOf("*") > 0) {
+    fileSave();
+  }
+
+  QString cmd = fAdmin->getExecPath() + "/musrview";
+  QString workDir = QFileInfo(*fFilenames.find( currentEditor() )).absolutePath();
+  QStringList arg;
+  QString str;
+
+  // file name
+  str = *fFilenames.find( currentEditor() );
+  int pos = str.lastIndexOf("/");
+  if (pos != -1)
+    str.remove(0, pos+1);
+  arg << str;
+
+  // timeout
+  str.setNum(fAdmin->getTimeout());
+  arg << "--timeout" << str;
+
+  // start with Fourier?
+  if (fAdmin->getMusrviewShowFourierFlag())
+    arg << "-f";
+
+  // start with averaged data/Fourier?
+  if (fAdmin->getMusrviewShowAvgFlag())
+    arg << "-a";
+
+  // check if theory shall only be calculated at the data points
+  if (fAdmin->getMusrviewShowOneToOneFlag())
+    arg << "-1";
+
+  QProcess *proc = new QProcess(this);
+  connect(proc, SIGNAL(finished(int, QProcess::ExitStatus)), this, SLOT(musrViewFinished(int, QProcess::ExitStatus)));
+
+  // make sure that the system environment variables are properly set
+  QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+  env.insert("LD_LIBRARY_PATH", env.value("ROOTSYS") + "/lib:" + env.value("LD_LIBRARY_PATH"));
+  proc->setProcessEnvironment(env);
+  proc->setWorkingDirectory(workDir);
+  proc->start(cmd, arg);
+  if (!proc->waitForStarted()) {
+    // error handling
+    QString msg(tr("Could not execute the output command: ")+cmd[0]);
+    QMessageBox::critical( nullptr,
+                           tr("Fatal error"),
+                           msg,
+                           tr("Quit") );
+    return;
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Checks if musrview terminated with error, and if yes pop up a message box.
+ * @param exitCode
+ */
+void PTextEdit::musrViewFinished(int exitCode, QProcess::ExitStatus)
+{
+  if (exitCode != 0) {
+    QString msg = QString("musrview failed. Possible reasons:\n");
+    msg += QString("* corrupted msr-file.\n");
+    msg += QString("* cannot read data-file.\n");
+    msg += QString("* many more things can go wrong.\n");
+    msg += QString("Please check!");
+    QMessageBox::critical(nullptr, tr("Fatal Error"), msg, tr("Quit"));
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Calls musrt0 <msr-file>.
+ */
+void PTextEdit::musrT0()
+{
+  if ( !currentEditor() )
+    return;
+
+  QString tabLabel = fTabWidget->tabText(fTabWidget->currentIndex());
+  if (tabLabel == "noname") {
+    QMessageBox::critical(this, "**ERROR**", "For a view a real mlog/msr-file is needed.");
+    return;
+  } else if (tabLabel == "noname*") {
+    fileSaveAs();
+  } else if (tabLabel.indexOf("*") > 0) {
+    fileSave();
+  }
+
+  QString cmd = fAdmin->getExecPath() + "/musrt0";
+  QString workDir = QFileInfo(*fFilenames.find( currentEditor() )).absolutePath();
+  QStringList arg;
+  QString str;
+
+  // file name
+  str = *fFilenames.find( currentEditor() );
+  int pos = str.lastIndexOf("/");
+  if (pos != -1)
+    str.remove(0, pos+1);
+  arg << str;
+
+  // timeout
+  str.setNum(fAdmin->getTimeout());
+  arg << "--timeout" << str;
+
+  QProcess *proc = new QProcess(this);
+
+  // make sure that the system environment variables are properly set
+  QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+  env.insert("LD_LIBRARY_PATH", env.value("ROOTSYS") + "/lib:" + env.value("LD_LIBRARY_PATH"));
+  proc->setProcessEnvironment(env);
+  proc->setWorkingDirectory(workDir);
+  proc->start(cmd, arg);
+  if (!proc->waitForStarted()) {
+    // error handling
+    QString msg(tr("Could not execute the output command: ")+cmd[0]);
+    QMessageBox::critical( nullptr,
+                           tr("Fatal error"),
+                           msg,
+                           tr("Quit") );
+    return;
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Calls musrFT via selection/option dialog. It will ask the user if he/she wants to overwrite some
+ * of the default settings.
+ */
+void PTextEdit::musrFT()
+{
+
+  PGetMusrFTOptionsDialog *dlg = new PGetMusrFTOptionsDialog(*fFilenames.find( currentEditor() ), fMusrFTPrevCmd, fAdmin->getHelpUrl("musrFT"));
+
+  if (dlg == nullptr) {
+    QMessageBox::critical(this, "**ERROR** musrFT", "Couldn't invoke musrFT Options Dialog.");
+    return;
+  }
+
+  if (dlg->exec() == QDialog::Accepted) {
+    fMusrFTPrevCmd = dlg->getMusrFTOptions();
+    QProcess *proc = new QProcess(this);
+    proc->setStandardOutputFile("musrFT.log");
+    proc->setStandardErrorFile("musrFT.log");
+    QString cmd = fAdmin->getExecPath() + "/musrFT";
+    QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+    env.insert("LD_LIBRARY_PATH", env.value("ROOTSYS") + "/lib:" + env.value("LD_LIBRARY_PATH"));
+    proc->setProcessEnvironment(env);
+    proc->start(cmd, fMusrFTPrevCmd);
+    if (!proc->waitForStarted()) {
+      // error handling
+      QString msg(tr("Could not execute the output command: ")+cmd[0]);
+      QMessageBox::critical( nullptr,
+                             tr("Fatal error"),
+                             msg,
+                             tr("Quit") );
+      return;
+    }
+  }
+
+  delete dlg;
+  dlg = nullptr;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Calls the preferences dialog which is used to set some global options.
+ */
+void PTextEdit::musrPrefs()
+{
+  PPrefsDialog *dlg = new PPrefsDialog(fAdmin);
+
+  if (dlg == nullptr) {
+    QMessageBox::critical(this, "**ERROR** musrPrefs", "Couldn't invoke Preferences Dialog.");
+    return;
+  }
+
+  if (dlg->exec() == QDialog::Accepted) {
+    fAdmin->setDarkThemeIconsMenuFlag(dlg->getDarkThemeIconsMenuFlag());
+    fAdmin->setDarkThemeIconsToolbarFlag(dlg->getDarkThemeIconsToolbarFlag());
+    fAdmin->setMusrviewShowFourierFlag(dlg->getMusrviewShowFourierFlag());
+    fAdmin->setMusrviewShowAvgFlag(dlg->getMusrviewShowAvgFlag());
+    fAdmin->setMusrviewShowOneToOneFlag(dlg->getMusrviewShowOneToOneFlag());
+    fAdmin->setKeepMinuit2OutputFlag(dlg->getKeepMinuit2OutputFlag());
+    fAdmin->setTitleFromDataFileFlag(dlg->getTitleFromDataFileFlag());
+    fAdmin->setEnableMusrT0Flag(dlg->getEnableMusrT0Flag());
+    fMusrT0Action->setEnabled(fAdmin->getEnableMusrT0Flag());
+    if (dlg->getDump() == 1) {
+      fAdmin->setDumpAsciiFlag(true);
+      fAdmin->setDumpRootFlag(false);
+    } else if (dlg->getDump() == 2) {
+      fAdmin->setDumpAsciiFlag(false);
+      fAdmin->setDumpRootFlag(true);
+    } else {
+      fAdmin->setDumpAsciiFlag(false);
+      fAdmin->setDumpRootFlag(false);
+    }
+    fAdmin->setTimeout(dlg->getTimeout());
+    fAdmin->setChisqPerRunBlockFlag(dlg->getKeepRunPerBlockChisqFlag());
+    fAdmin->setEstimateN0Flag(dlg->getEstimateN0Flag());
+  }
+
+  delete dlg;
+  dlg = nullptr;
+
+  // check if the dark theme menu icons flag has changed
+  if (fAdmin->getDarkThemeIconsMenuFlag() != fDarkMenuIcon) {
+    fDarkMenuIcon = !fDarkMenuIcon;
+    switchMenuIcons();
+  }
+  // check if the dark theme toolbar icons flag has changed
+  if (fAdmin->getDarkThemeIconsToolbarFlag() != fDarkToolBarIcon) {
+    fDarkToolBarIcon = !fDarkToolBarIcon;
+    switchToolbarIcons();
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * @brief PTextEdit::musrSetSteps
+ */
+void PTextEdit::musrSetSteps()
+{
+  if ( !currentEditor() )
+    return;
+
+  // make sure I have a saved msr-file to work on
+  QString tabLabel = fTabWidget->tabText(fTabWidget->currentIndex());
+  if (tabLabel == "noname") {
+    QMessageBox::critical(this, "**ERROR**", "For musrStep a real mlog/msr-file is needed.");
+    return;
+  } else if (tabLabel == "noname*") {
+    fileSaveAs();
+  } else if (tabLabel.indexOf("*") > 0) {
+    fileSave();
+  }
+
+  // fill the command queue
+  QString cmd = fAdmin->getExecPath() + "/musrStep";
+#if defined(Q_OS_DARWIN) || defined(Q_OS_MAC)
+  cmd = QString("/Applications/musrStep.app/Contents/MacOS/musrStep");
+#endif
+  QString workDir = QFileInfo(*fFilenames.find( currentEditor() )).absolutePath();
+  QStringList arg;
+  QString str;
+
+  // get file name and feed it to the command queue
+  str = *fFilenames.find( currentEditor() );
+  int pos = str.lastIndexOf("/");
+  if (pos != -1)
+    str.remove(0, pos+1);
+  arg << str;
+
+  QProcess *proc = new QProcess(this);
+  if (proc == nullptr) {
+    QMessageBox::critical(nullptr, "**ERROR**", "Couldn't invoke QProcess!");
+    return;
+  }
+
+  // handle return status of musrStep
+  connect(proc, static_cast<void(QProcess::*)(int, QProcess::ExitStatus)>(&QProcess::finished),
+          [=](int exitCode, QProcess::ExitStatus exitStatus){ exitStatusMusrSetSteps(exitCode, exitStatus); });
+
+  // make sure that the system environment variables are properly set
+  QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+  env.insert("LD_LIBRARY_PATH", env.value("ROOTSYS") + "/lib:" + env.value("LD_LIBRARY_PATH"));
+  proc->setProcessEnvironment(env);
+  proc->setWorkingDirectory(workDir);
+  proc->start(cmd, arg);
+  if (!proc->waitForStarted()) {
+    // error handling
+    QString msg(tr("Could not execute the output command: ")+cmd[0]);
+    QMessageBox::critical( nullptr,
+                           tr("Fatal error"),
+                           msg,
+                           tr("Quit") );
+    return;
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Swaps the currently open msr-file with its mlog-file (if present) and updates musredit accordingly.
+ */
+void PTextEdit::musrSwapMsrMlog()
+{
+  if ( !currentEditor() )
+    return;
+
+  // get current file name
+  QString currentFileName = *fFilenames.find( currentEditor() );
+  QString swapFileName;
+  QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+  QString tempFileName = QString("%1/.musrfit/__swap__.msr").arg(env.value("HOME"));
+
+  // check if it is a msr-, mlog-, or another file
+  int idx;
+  if ((idx = currentFileName.indexOf(".msr")) > 0) { // msr-file
+    swapFileName = currentFileName;
+    swapFileName.replace(idx, 5, ".mlog");
+  } else if ((idx = currentFileName.indexOf(".mlog")) > 0) { // mlog-file
+    swapFileName = currentFileName;
+    swapFileName.replace(idx, 5, ".msr ");
+    swapFileName = swapFileName.trimmed();
+  } else { // neither a msr- nor a mlog-file
+    QMessageBox::information( this, "musrSwapMsrMlog",
+    "This is neither a msr- nor a mlog-file, hence nothing to be swapped.\n",
+    QMessageBox::Ok );
+    return;
+  }
+
+  // check if the swapFile exists
+  if (!QFile::exists(swapFileName)) {
+    QString msg = "swap file '" + swapFileName + "' doesn't exist.\nCannot swap anything.";
+    QMessageBox::warning( this, "musrSwapMsrMlog",
+                          msg, QMessageBox::Ok, QMessageBox::NoButton );
+    return;
+  }
+
+  // check if the file needs to be saved
+  if (fTabWidget->tabText(fTabWidget->currentIndex()).indexOf("*") > 0) { // needs to be saved first
+    fileSave();
+  }
+
+  QMessageBox::information(nullptr, "INFO", QString("Will now swap files: %1 <-> %2").arg(currentFileName).arg(swapFileName));
+
+  // swap files
+
+  // copy currentFile -> tempFile
+  if (QFile::exists(tempFileName)) {
+    if (!QFile::remove(tempFileName)) {
+      QMessageBox::critical(nullptr, "ERROR", QString("failed to remove %1").arg(tempFileName));
+      return;
+    }
+  }
+  if (!QFile::copy(currentFileName, tempFileName)) {
+    QMessageBox::critical(nullptr, "ERROR", QString("failed to copy %1 -> %2").arg(currentFileName).arg(tempFileName));
+    return;
+  }
+  // copy swapFile -> currentFile
+  if (!QFile::remove(currentFileName)) {
+    QMessageBox::critical(nullptr, "ERROR", QString("failed to remove %1").arg(currentFileName));
+    return;
+  }
+  if (!QFile::copy(swapFileName, currentFileName)) {
+    QMessageBox::critical(nullptr, "ERROR", QString("failed to copy %1 -> %2").arg(swapFileName).arg(currentFileName));
+    return;
+  }
+  // copy tempFile -> swapFile
+  if (!QFile::remove(swapFileName)) {
+    QMessageBox::critical(nullptr, "ERROR", QString("failed to remove %1").arg(swapFileName));
+    return;
+  }
+  if (!QFile::copy(tempFileName, swapFileName)) {
+    QMessageBox::critical(nullptr, "ERROR", QString("failed to copy %1 -> %2").arg(tempFileName).arg(swapFileName));
+    return;
+  }
+  // clean up
+  if (!QFile::remove(tempFileName)) {
+    QMessageBox::critical(nullptr, "ERROR", QString("failed to remove %1").arg(tempFileName));
+    return;
+  }
+
+  int currentIdx = fTabWidget->currentIndex();
+
+  // reload current file
+  fileClose();
+  load(currentFileName);
+
+  // check if swap file is open as well, and if yes, reload it
+  idx = -1;
+  for (int i=0; i<fTabWidget->count(); i++) {
+    if (fTabWidget->tabText(i).indexOf(swapFileName) >= 0) {
+      idx = i;
+      break;
+    }
+  }
+  if (idx >= 0) { // swap file is open
+    fTabWidget->setCurrentIndex(idx);
+    fileClose();
+    load(swapFileName);
+    fTabWidget->setCurrentIndex(currentIdx);
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Dumps the run header information of a selected muSR data file.
+ */
+void PTextEdit::musrDump()
+{
+  // select a muSR data filename
+  QString fileName = QFileDialog::getOpenFileName(this, tr("Select muSR Data File"), "./", tr("muSR Data Files (*.root *.bin *.msr *.nxs)"));
+  if (fileName.isEmpty())
+    return;
+
+  QVector<QString> cmd;
+  QString str = fAdmin->getExecPath() + "/dump_header";
+  cmd.append(str);
+  cmd.append("-fn");
+  cmd.append(fileName);
+
+  PDumpOutputHandler dumpOutputHandler(cmd);
+  dumpOutputHandler.setModal(false);
+  dumpOutputHandler.exec();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * @brief PTextEdit::mupp
+ * <p>Calls mupp, the muSR parameter plotter.
+ */
+void PTextEdit::mupp()
+{
+  QString cmd("");
+  cmd = fAdmin->getExecPath() + "/mupp";
+#if defined(Q_OS_DARWIN) || defined(Q_OS_MAC)
+  cmd = QString("/Applications/mupp.app/Contents/MacOS/mupp");
+#endif
+
+  QStringList arg;
+
+  QProcess *proc = new QProcess(this);
+
+  QString workDir = QFileInfo(*fFilenames.find( currentEditor() )).absolutePath();
+
+  // make sure that the system environment variables are properly set
+  QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+  env.insert("LD_LIBRARY_PATH", env.value("ROOTSYS") + "/lib:" + env.value("LD_LIBRARY_PATH"));
+  proc->setProcessEnvironment(env);
+  proc->setWorkingDirectory(workDir);
+  proc->start(cmd, arg);
+  if (!proc->waitForStarted()) {
+    // error handling
+    QString msg(tr("Could not execute the output command: ")+cmd);
+    QMessageBox::critical( nullptr,
+                           tr("Fatal error"),
+                           msg,
+                           tr("Quit") );
+    return;
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Starts the help content browser.
+ */
+void PTextEdit::helpContents()
+{
+  bool ok = QDesktopServices::openUrl(QUrl(fAdmin->getHelpUrl("main"), QUrl::TolerantMode));
+  if (!ok) {
+    QString msg = QString("<p>Sorry: Couldn't open default web-browser for the help.<br>Please try: <a href=\"%1\">musrfit docu</a> in your web-browser.").arg(fAdmin->getHelpUrl("main"));
+    QMessageBox::critical( nullptr,
+                           tr("Fatal Error"),
+                           msg,
+                           tr("Quit") );
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Starts the help about info box.
+ */
+void PTextEdit::helpAbout()
+{
+  PMusrEditAbout *about = new PMusrEditAbout();
+  about->show();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Starts the help about Qt info box.
+ */
+void PTextEdit::helpAboutQt()
+{
+  QMessageBox::aboutQt(this);
+}
+
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * @brief PTextEdit::exitStatusMusrWiz
+ * @param exitCode
+ * @param exitStatus
+ */
+void PTextEdit::exitStatusMusrWiz(int exitCode, QProcess::ExitStatus exitStatus)
+{
+  if (exitStatus == QProcess::CrashExit) {
+    QMessageBox::critical(nullptr, "**FATAL**", "musrWiz returned CrashExit.");
+    return;
+  }
+
+  // dialog finished with reject
+  if (exitCode == 0)
+    return;
+
+  // read .musrWiz.log
+  QProcessEnvironment procEnv = QProcessEnvironment::systemEnvironment();
+  QString pathName = procEnv.value("HOME", "");
+  pathName += "/.musrfit/musredit/musrWiz.log";
+  QString errMsg;
+  std::ifstream fin(pathName.toLatin1().data(), std::ifstream::in);
+  if (!fin.is_open()) {
+    errMsg = QString("PTextEdit::exitStatusMusrWiz: couldn't read %1 file.").arg(pathName);
+    QMessageBox::critical(nullptr, "**ERROR**", errMsg);
+    return;
+  }
+  char line[128];
+  bool musrT0tag = false;
+  QString str, pathFileName("");
+  while (fin.good()) {
+    fin.getline(line, 128);
+    str = line;
+    if (str.startsWith("path-file-name:")) {
+      pathFileName = str.mid(16);
+    } else if (str.startsWith("musrt0-tag: yes")) {
+      musrT0tag = true;
+    }
+  }
+  fin.close();
+
+  load(pathFileName);
+
+  // in case there is a 1st empty tab "noname", remove it
+  QString tabStr = fTabWidget->tabText(0);
+  tabStr.remove('&'); // this is needed since the QTabWidget adds short-cut info as '&' to the tab name
+  if (tabStr == "noname") { // has to be the first, otherwise do nothing
+    fFileSystemWatcher->removePath("noname");
+
+    delete fTabWidget->widget(0);
+  }
+
+  if (musrT0tag)
+    musrT0();
+  
+  // remove musrWiz.log file
+  QFile logFile(pathName);
+  if (!logFile.remove()) {
+    errMsg = QString("PTextEdit::exitStatusMusrWiz: couldn't delete %1 file.").arg(pathName);
+    QMessageBox::critical(nullptr, "**ERROR**", errMsg);
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * @brief PTextEdit::existStatusMusrSetSteps
+ * @param exitCode
+ * @param exitStatus
+ */
+void PTextEdit::exitStatusMusrSetSteps(int exitCode, QProcess::ExitStatus exitStatus)
+{
+  if (exitStatus == QProcess::CrashExit) {
+    QMessageBox::critical(nullptr, "**FATAL**", "musrStep returned CrashExit.");
+    return;
+  }
+
+  // dialog finished with reject
+  if (exitCode == 0)
+    return;
+
+  // dialog finished with save and quite, i.e. accept, hence reload
+  QString fln = *fFilenames.find( currentEditor() );
+  int idx = fTabWidget->currentIndex();
+
+  fileClose();
+  load(fln, idx);
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT: called when the font shall be changed.
+ *
+ * \param f font object
+ */
+void PTextEdit::fontChanged( const QFont &f )
+{
+  fFontChanging = true;
+  fComboFont->lineEdit()->setText( f.family() );
+  fComboSize->lineEdit()->setText( QString::number( f.pointSize() ) );
+
+  if (!currentEditor())
+    return;
+
+  currentEditor()->setFont(f);
+  currentEditor()->setWindowModified(false);
+  currentEditor()->viewport()->setFocus();
+  fFontChanging = false;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT: called when the text of the document has changed. It adds a star to the tab label if the
+ * document has been modified.
+ *
+ * \param forced
+ */
+void PTextEdit::textChanged(const bool forced)
+{
+
+  if (!currentEditor())
+    return;
+
+  if (fFontChanging)
+    return;
+
+  QString tabLabel = fTabWidget->tabText(fTabWidget->currentIndex());
+
+  if ((fTabWidget->tabText(fTabWidget->currentIndex()).indexOf("*") > 0) &&
+      !currentEditor()->document()->isModified()) {
+    tabLabel.truncate(tabLabel.length()-1);
+    fTabWidget->setTabText(fTabWidget->currentIndex(), tabLabel);
+  }
+
+  if ((fTabWidget->tabText(fTabWidget->currentIndex()).indexOf("*") < 0) &&
+      currentEditor()->document()->isModified()) {
+    fTabWidget->setTabText(fTabWidget->currentIndex(), tabLabel+"*");
+  }
+
+  if ((fTabWidget->tabText(fTabWidget->currentIndex()).indexOf("*") < 0) &&
+      forced)
+    fTabWidget->setTabText(fTabWidget->currentIndex(), tabLabel+"*");
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT: called when the cursor position has changed. Updates the status bar with the current
+ * cursor position.
+ */
+void PTextEdit::currentCursorPosition()
+{
+  QString str;
+  int line=0, pos=0;
+  
+  pos = currentEditor()->textCursor().columnNumber();
+  line = currentEditor()->textCursor().blockNumber();
+
+  str = QString("cursor pos: %1, %2").arg(line+1).arg(pos+1);
+  statusBar()->showMessage(str);
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT: handles the replaced command.
+ */
+void PTextEdit::replace()
+{
+  currentEditor()->insertPlainText(fFindReplaceData->replaceText);
+
+  editFindNext();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT: handles the repalce and close command.
+ */
+void PTextEdit::replaceAndClose()
+{
+  currentEditor()->insertPlainText(fFindReplaceData->replaceText);
+
+  emit close();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT: handles the replace all command.
+ */
+void PTextEdit::replaceAll()
+{
+  // set the cursor to the start of the document
+  currentEditor()->moveCursor(QTextCursor::Start);
+
+  // construct search flags
+  QTextDocument::FindFlags flags;
+  if (fFindReplaceData->caseSensitive)
+    flags |= QTextDocument::FindCaseSensitively;
+  else if (fFindReplaceData->findBackwards)
+    flags |= QTextDocument::FindBackward;
+  else if (fFindReplaceData->wholeWordsOnly)
+    flags |= QTextDocument::FindWholeWords;
+
+  while (currentEditor()->find(fFindReplaceData->findText, flags)) {
+    currentEditor()->insertPlainText(fFindReplaceData->replaceText);
+  }
+
+  emit close();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>SLOT: updates the fonts if the textedit tab has changed.
+ */
+void PTextEdit::applyFontSettings(int)
+{
+  QFont font(fAdmin->getFontName(), fAdmin->getFontSize());
+  fontChanged(font);
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Called when an open file is changing outside the editor (SLOT).
+ *
+ * \param fileName file name of the changed file.
+ */
+void PTextEdit::fileChanged(const QString &fileName)
+{
+  if (!fFileSystemWatcherActive)
+    return;
+
+  fFileSystemWatcherActive = false;
+
+  QString str = "File '" + fileName + "' changed on the system.\nDo you want to reload it?";
+  int result = QMessageBox::question(this, "**INFO**", str, QMessageBox::Yes, QMessageBox::No);
+  if (result == QMessageBox::Yes) {
+    // find correct file
+    int idx = -1;
+    for (int i=0; i<fTabWidget->count(); i++) {
+      if (fTabWidget->tabText(i) == QFileInfo(fileName).fileName()) {
+        idx = i;
+        break;
+      }
+    }
+
+    if (idx == -1) {
+      fileSystemWatcherActivation();
+      return;
+    }
+
+    // remove file from file system watcher
+    fFileSystemWatcher->removePath(fileName);
+
+    // close tab
+    fTabWidget->removeTab(idx);
+    // load it
+    load(fileName, idx);
+  }
+
+  fileSystemWatcherActivation();
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Delayed reactivation of file system watcher, needed when saving files. At the moment the delay
+ * is set to 2000 ms.
+ */
+void PTextEdit::fileSystemWatcherActivation()
+{
+  if (fFileSystemWatcherTimeout.isActive())
+    return;
+
+  fFileSystemWatcherTimeout.singleShot(2000, this, SLOT(setFileSystemWatcherActive()));
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>slot needed to reactivate the file system watcher. It is called by PTextEdit::fileSystemWatcherActivation()
+ * after some given timeout.
+ */
+void PTextEdit::setFileSystemWatcherActive()
+{
+  fFileSystemWatcherActive = true;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * @brief PTextEdit::getTheme
+ */
+bool PTextEdit::getTheme()
+{
+  fDarkMenuIcon = false; // true if theme is dark
+  fDarkToolBarIcon = false; // needed for ubuntu dark since there the menu icons are dark, however the toolbar icons are plain!
+
+  QString str = QIcon::themeName();
+
+  if (str.isEmpty()) { // this is ugly and eventually needs to be fixed in a more coherent way
+    str = QProcessEnvironment::systemEnvironment().value("HOME", QString("??"));
+    str += "/.kde4/share/config/kdeglobals";
+    bool done = false;
+    if (QFile::exists(str)) {
+      QFile fln(str);
+      fln.open(QIODevice::ReadOnly | QIODevice::Text);
+      QTextStream fin(&fln);
+      QString line("");
+      while (!fin.atEnd() && !done) {
+        line = fin.readLine();
+        if (line.contains("ColorScheme")) {
+          if (line.contains("dark", Qt::CaseInsensitive)) {
+            fDarkMenuIcon = true;
+            fDarkToolBarIcon = true;
+          }
+          done = true;
+        }
+      }
+      fln.close();
+    }
+    return done;
+  }
+
+  if (str.contains("dark", Qt::CaseInsensitive)) {
+    fDarkMenuIcon = true;
+    if (str.contains("ubuntu", Qt::CaseInsensitive)) {
+      fDarkMenuIcon = false;
+      fDarkToolBarIcon = false;
+    } else if (str.contains("xfce", Qt::CaseInsensitive)) {
+      fDarkMenuIcon = false;
+      fDarkToolBarIcon = false;
+    } else {
+      fDarkToolBarIcon = true;
+    }
+  }
+  
+  return true;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>fill the recent file list in the menu.
+ */
+void PTextEdit::fillRecentFiles()
+{
+  for (int i=0; i<fAdmin->getNumRecentFiles(); i++) {
+    fRecentFilesAction[i]->setText(fAdmin->getRecentFile(i));
+    fRecentFilesAction[i]->setVisible(true);
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p> run list is split (space separated) and expanded (start-end -> start, start+1, ..., end) to a list
+ *
+ * \param runListStr list to be split and expanded
+ * \param ok true if everything is fine; false if an error has been encountered
+ *
+ * \return fully expanded run list
+ */
+QStringList PTextEdit::getRunList(QString runListStr, bool &ok)
+{
+  QStringList result;
+  bool isInt;
+  QString str;
+
+  ok = true;
+
+  // first split space separated parts
+  QStringList tok = runListStr.split(' ', Qt::SkipEmptyParts);
+  for (int i=0; i<tok.size(); i++) {
+    if (tok[i].contains('-')) { // list given, hence need to expand
+      QStringList runListTok = tok[i].split('-', Qt::SkipEmptyParts);
+      if (runListTok.size() != 2) { // error
+        ok = false;
+        result.clear();
+        return result;
+      }
+      int start=0, end=0;
+      start = runListTok[0].toInt(&isInt);
+      if (!isInt) {
+        ok = false;
+        result.clear();
+        return result;
+      }
+      end = runListTok[1].toInt(&isInt);
+      if (!isInt) {
+        ok = false;
+        result.clear();
+        return result;
+      }
+      for (int i=start; i<=end; i++) {
+        str = QString("%1").arg(i);
+        result << str;
+      }
+    } else { // keep it
+      result << tok[i];
+    }
+  }
+
+  return result;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * @brief PTextEdit::fileAlreadyOpen
+ * @param finfo
+ * @param idx
+ * @return
+ */
+bool PTextEdit::fileAlreadyOpen(QFileInfo &finfo, int &idx)
+{
+  bool result = false;
+  QFileInfo finfo2;
+  QString tabFln;
+
+  for (int i=0; i<fTabWidget->count(); i++) {
+    tabFln = *fFilenames.find( dynamic_cast<PSubTextEdit*>(fTabWidget->widget(i)));
+    finfo2.setFile(tabFln);
+    if (finfo.absoluteFilePath() == finfo2.absoluteFilePath()) {
+      result = true;
+      idx = i;
+      break;
+    }
+  }
+
+  return result;
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Switch menu icons according to the fAdmin settings
+ */
+void PTextEdit::switchMenuIcons()
+{
+  if (fAdmin->getDarkThemeIconsMenuFlag()) { // dark theme icons
+    fActions["New"]->setIcon(QIcon(QPixmap(":/icons/document-new-dark.svg")));
+    fActions["Open"]->setIcon(QIcon(QPixmap(":/icons/document-open-dark.svg")));
+    fActions["Reload"]->setIcon(QIcon(QPixmap(":/icons/view-refresh-dark.svg")));
+    fActions["Save"]->setIcon(QIcon(QPixmap(":/icons/document-save-dark.svg")));
+    fActions["Print"]->setIcon(QIcon(QPixmap(":/icons/document-print-dark.svg")));
+    fActions["Undo"]->setIcon(QIcon(QPixmap(":/icons/edit-undo-dark.svg")));
+    fActions["Redo"]->setIcon(QIcon(QPixmap(":/icons/edit-redo-dark.svg")));
+    fActions["Copy"]->setIcon(QIcon(QPixmap(":/icons/edit-copy-dark.svg")));
+    fActions["Cut"]->setIcon(QIcon(QPixmap(":/icons/edit-cut-dark.svg")));
+    fActions["Paste"]->setIcon(QIcon(QPixmap(":/icons/edit-paste-dark.svg")));
+    fActions["Find"]->setIcon(QIcon(QPixmap(":/icons/edit-find-dark.svg")));
+    fActions["Find Next"]->setIcon(QIcon(QPixmap(":/icons/go-next-use-dark.svg")));
+    fActions["Find Previous"]->setIcon(QIcon(QPixmap(":/icons/go-previous-use-dark.svg")));
+    fActions["musrWiz"]->setIcon(QIcon(QPixmap(":/icons/musrWiz-32x32-dark.svg")));
+    fActions["calcChisq"]->setIcon(QIcon(QPixmap(":/icons/musrchisq-dark.svg")));
+    fActions["musrfit"]->setIcon(QIcon(QPixmap(":/icons/musrfit-dark.svg")));
+    fActions["Swap Msr/Mlog"]->setIcon(QIcon(QPixmap(":/icons/musrswap-dark.svg")));
+    fActions["musrStep"]->setIcon(QIcon(QPixmap(":/icons/musrStep-32x32-dark.svg")));
+    fActions["msr2data"]->setIcon(QIcon(QPixmap(":/icons/msr2data-dark.svg")));
+    fActions["mupp"]->setIcon(QIcon(QPixmap(":/icons/mupp-dark.svg")));
+    fActions["musrview"]->setIcon(QIcon(QPixmap(":/icons/musrview-dark.svg")));
+    fActions["musrt0"]->setIcon(QIcon(QPixmap(":/icons/musrt0-dark.svg")));
+    fActions["musrFT"]->setIcon(QIcon(QPixmap(":/icons/musrFT-dark.svg")));
+    fActions["musrprefs"]->setIcon(QIcon(QPixmap(":/icons/musrprefs-dark.svg")));
+    fActions["musrdump"]->setIcon(QIcon(QPixmap(":/icons/musrdump-dark.svg")));
+  } else { // plain theme icons
+    fActions["New"]->setIcon(QIcon(QPixmap(":/icons/document-new-plain.svg")));
+    fActions["Open"]->setIcon(QIcon(QPixmap(":/icons/document-open-plain.svg")));
+    fActions["Reload"]->setIcon(QIcon(QPixmap(":/icons/view-refresh-plain.svg")));
+    fActions["Save"]->setIcon(QIcon(QPixmap(":/icons/document-save-plain.svg")));
+    fActions["Print"]->setIcon(QIcon(QPixmap(":/icons/document-print-plain.svg")));
+    fActions["Undo"]->setIcon(QIcon(QPixmap(":/icons/edit-undo-plain.svg")));
+    fActions["Redo"]->setIcon(QIcon(QPixmap(":/icons/edit-redo-plain.svg")));
+    fActions["Copy"]->setIcon(QIcon(QPixmap(":/icons/edit-copy-plain.svg")));
+    fActions["Cut"]->setIcon(QIcon(QPixmap(":/icons/edit-cut-plain.svg")));
+    fActions["Paste"]->setIcon(QIcon(QPixmap(":/icons/edit-paste-plain.svg")));
+    fActions["Find"]->setIcon(QIcon(QPixmap(":/icons/edit-find-plain.svg")));
+    fActions["Find Next"]->setIcon(QIcon(QPixmap(":/icons/go-next-use-plain.svg")));
+    fActions["Find Previous"]->setIcon(QIcon(QPixmap(":/icons/go-previous-use-plain.svg")));
+    fActions["musrWiz"]->setIcon(QIcon(QPixmap(":/icons/musrWiz-32x32.svg")));
+    fActions["calcChisq"]->setIcon(QIcon(QPixmap(":/icons/musrchisq-plain.svg")));
+    fActions["musrfit"]->setIcon(QIcon(QPixmap(":/icons/musrfit-plain.svg")));
+    fActions["Swap Msr/Mlog"]->setIcon(QIcon(QPixmap(":/icons/musrswap-plain.svg")));
+    fActions["musrStep"]->setIcon(QIcon(QPixmap(":/icons/musrStep-32x32.svg")));
+    fActions["msr2data"]->setIcon(QIcon(QPixmap(":/icons/msr2data-plain.svg")));
+    fActions["mupp"]->setIcon(QIcon(QPixmap(":/icons/mupp-plain.svg")));
+    fActions["musrview"]->setIcon(QIcon(QPixmap(":/icons/musrview-plain.svg")));
+    fActions["musrt0"]->setIcon(QIcon(QPixmap(":/icons/musrt0-plain.svg")));
+    fActions["musrFT"]->setIcon(QIcon(QPixmap(":/icons/musrFT-plain.svg")));
+    fActions["musrprefs"]->setIcon(QIcon(QPixmap(":/icons/musrprefs-plain.svg")));
+    fActions["musrdump"]->setIcon(QIcon(QPixmap(":/icons/musrdump-plain.svg")));
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+/**
+ * <p>Switch toolbar icons according to the fAdmin settings
+ */
+void PTextEdit::switchToolbarIcons()
+{
+  if (fAdmin->getDarkThemeIconsToolbarFlag()) { // dark theme icons
+    fActions["New-tb"]->setIcon(QIcon(QPixmap(":/icons/document-new-dark.svg")));
+    fActions["Open-tb"]->setIcon(QIcon(QPixmap(":/icons/document-open-dark.svg")));
+    fActions["Reload-tb"]->setIcon(QIcon(QPixmap(":/icons/view-refresh-dark.svg")));
+    fActions["Save-tb"]->setIcon(QIcon(QPixmap(":/icons/document-save-dark.svg")));
+    fActions["Print-tb"]->setIcon(QIcon(QPixmap(":/icons/document-print-dark.svg")));
+    fActions["Undo-tb"]->setIcon(QIcon(QPixmap(":/icons/edit-undo-dark.svg")));
+    fActions["Redo-tb"]->setIcon(QIcon(QPixmap(":/icons/edit-redo-dark.svg")));
+    fActions["Copy-tb"]->setIcon(QIcon(QPixmap(":/icons/edit-copy-dark.svg")));
+    fActions["Cut-tb"]->setIcon(QIcon(QPixmap(":/icons/edit-cut-dark.svg")));
+    fActions["Paste-tb"]->setIcon(QIcon(QPixmap(":/icons/edit-paste-dark.svg")));
+    fActions["Find-tb"]->setIcon(QIcon(QPixmap(":/icons/edit-find-dark.svg")));
+    fActions["Find Next-tb"]->setIcon(QIcon(QPixmap(":/icons/go-next-use-dark.svg")));
+    fActions["Find Previous-tb"]->setIcon(QIcon(QPixmap(":/icons/go-previous-use-dark.svg")));
+    fActions["musrWiz-tb"]->setIcon(QIcon(QPixmap(":/icons/musrWiz-32x32-dark.svg")));
+    fActions["calcChisq-tb"]->setIcon(QIcon(QPixmap(":/icons/musrchisq-dark.svg")));
+    fActions["musrfit-tb"]->setIcon(QIcon(QPixmap(":/icons/musrfit-dark.svg")));
+    fActions["Swap Msr/Mlog-tb"]->setIcon(QIcon(QPixmap(":/icons/musrswap-dark.svg")));
+    fActions["musrStep-tb"]->setIcon(QIcon(QPixmap(":/icons/musrStep-32x32-dark.svg")));
+    fActions["msr2data-tb"]->setIcon(QIcon(QPixmap(":/icons/msr2data-dark.svg")));
+    fActions["mupp-tb"]->setIcon(QIcon(QPixmap(":/icons/mupp-dark.svg")));
+    fActions["musrview-tb"]->setIcon(QIcon(QPixmap(":/icons/musrview-dark.svg")));
+    fActions["musrt0-tb"]->setIcon(QIcon(QPixmap(":/icons/musrt0-dark.svg")));
+    fActions["musrFT-tb"]->setIcon(QIcon(QPixmap(":/icons/musrFT-dark.svg")));
+    fActions["musrprefs-tb"]->setIcon(QIcon(QPixmap(":/icons/musrprefs-dark.svg")));
+    fActions["musrdump-tb"]->setIcon(QIcon(QPixmap(":/icons/musrdump-dark.svg")));
+  } else { // plain theme icons
+    fActions["New-tb"]->setIcon(QIcon(QPixmap(":/icons/document-new-plain.svg")));
+    fActions["Open-tb"]->setIcon(QIcon(QPixmap(":/icons/document-open-plain.svg")));
+    fActions["Reload-tb"]->setIcon(QIcon(QPixmap(":/icons/view-refresh-plain.svg")));
+    fActions["Save-tb"]->setIcon(QIcon(QPixmap(":/icons/document-save-plain.svg")));
+    fActions["Print-tb"]->setIcon(QIcon(QPixmap(":/icons/document-print-plain.svg")));
+    fActions["Undo-tb"]->setIcon(QIcon(QPixmap(":/icons/edit-undo-plain.svg")));
+    fActions["Redo-tb"]->setIcon(QIcon(QPixmap(":/icons/edit-redo-plain.svg")));
+    fActions["Copy-tb"]->setIcon(QIcon(QPixmap(":/icons/edit-copy-plain.svg")));
+    fActions["Cut-tb"]->setIcon(QIcon(QPixmap(":/icons/edit-cut-plain.svg")));
+    fActions["Paste-tb"]->setIcon(QIcon(QPixmap(":/icons/edit-paste-plain.svg")));
+    fActions["Find-tb"]->setIcon(QIcon(QPixmap(":/icons/edit-find-plain.svg")));
+    fActions["Find Next-tb"]->setIcon(QIcon(QPixmap(":/icons/go-next-use-plain.svg")));
+    fActions["Find Previous-tb"]->setIcon(QIcon(QPixmap(":/icons/go-previous-use-plain.svg")));
+    fActions["musrWiz-tb"]->setIcon(QIcon(QPixmap(":/icons/musrWiz-32x32.svg")));
+    fActions["calcChisq-tb"]->setIcon(QIcon(QPixmap(":/icons/musrchisq-plain.svg")));
+    fActions["musrfit-tb"]->setIcon(QIcon(QPixmap(":/icons/musrfit-plain.svg")));
+    fActions["Swap Msr/Mlog-tb"]->setIcon(QIcon(QPixmap(":/icons/musrswap-plain.svg")));
+    fActions["musrStep-tb"]->setIcon(QIcon(QPixmap(":/icons/musrStep-32x32.svg")));
+    fActions["msr2data-tb"]->setIcon(QIcon(QPixmap(":/icons/msr2data-plain.svg")));
+    fActions["mupp-tb"]->setIcon(QIcon(QPixmap(":/icons/mupp-plain.svg")));
+    fActions["musrview-tb"]->setIcon(QIcon(QPixmap(":/icons/musrview-plain.svg")));
+    fActions["musrt0-tb"]->setIcon(QIcon(QPixmap(":/icons/musrt0-plain.svg")));
+    fActions["musrFT-tb"]->setIcon(QIcon(QPixmap(":/icons/musrFT-plain.svg")));
+    fActions["musrprefs-tb"]->setIcon(QIcon(QPixmap(":/icons/musrprefs-plain.svg")));
+    fActions["musrdump-tb"]->setIcon(QIcon(QPixmap(":/icons/musrdump-plain.svg")));
+  }
+}
+
+//----------------------------------------------------------------------------------------------------
+// END
+//----------------------------------------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/PTextEdit.h b/src/musredit_qt6/musredit/PTextEdit.h
new file mode 100644
index 00000000..37651141
--- /dev/null
+++ b/src/musredit_qt6/musredit/PTextEdit.h
@@ -0,0 +1,200 @@
+/****************************************************************************
+
+  PTextEdit.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _PTEXTEDIT_H_
+#define _PTEXTEDIT_H_
+
+#include <QMainWindow>
+#include <QString>
+#include <QStringList>
+#include <QMap>
+#include <QTimer>
+#include <QString>
+#include <QVector>
+#include <QProcess>
+#include <QFileInfo>
+#include <QByteArray>
+
+#include <QtDebug>
+
+
+#include "musredit.h"
+
+class PSubTextEdit;
+class PAdmin;
+class QFileSystemWatcher;
+class QAction;
+class QComboBox;
+class QTabWidget;
+class QTextEdit;
+class QMenu;
+
+//----------------------------------------------------------------------------------------------
+/**
+ * <p>Main class for musredit.
+ */
+class PTextEdit : public QMainWindow
+{
+  Q_OBJECT
+
+public:
+  PTextEdit( QWidget *parent = nullptr );
+  virtual ~PTextEdit() {}
+
+public slots:
+  void aboutToQuit();
+
+signals:
+  void close();
+
+private:
+  void setupFileActions();
+  void setupEditActions();
+  void setupTextActions();
+  void setupMusrActions();
+  void setupHelpActions();
+  void load( const QString &f, const int index=-1 );
+  PSubTextEdit *currentEditor() const;
+  void doConnections( PSubTextEdit *e );
+  void fileSystemWatcherActivation();
+
+private slots:
+  void insertTitle();
+  void insertParameterBlock();
+  void insertTheoryBlock();
+  void insertTheoryFunction(QAction *a);
+  void insertFunctionBlock();
+  void insertAsymRunBlock();
+  void insertSingleHistRunBlock();
+  void insertNonMusrRunBlock();
+  void insertCommandBlock();
+  void insertFourierBlock();
+  void insertPlotBlock();
+  void insertStatisticBlock();
+
+  void fileNew();
+  void fileOpen();
+  void fileOpenRecent();
+  void fileReload();
+  void fileOpenPrefs();
+  void fileSave();
+  void fileSaveAs();
+  void fileSavePrefs();
+  void filePrint();
+  void fileClose( const bool check = true );
+  void fileCloseAll();
+  void fileCloseAllOthers();
+  void fileExit();
+
+  void editUndo();
+  void editRedo();
+  void editSelectAll();
+  void editCut();
+  void editCopy();
+  void editPaste();
+  void editFind();
+  void editFindNext();
+  void editFindPrevious();
+  void editFindAndReplace();
+  void editComment();
+  void editUncomment();
+
+  void textFamily( const QString &f );
+  void textSize( const QString &p );
+
+  void musrWiz();
+  void musrCalcChisq();
+  void musrFit();
+  void musrMsr2Data();
+  void musrView();
+  void musrViewFinished(int, QProcess::ExitStatus);
+  void musrT0();
+  void musrFT();
+  void musrPrefs();
+  void musrSwapMsrMlog();
+  void musrSetSteps();
+  void musrDump();
+  void mupp();
+
+  void helpContents();
+  void helpAboutQt();
+  void helpAbout();
+
+  void exitStatusMusrWiz(int exitCode, QProcess::ExitStatus exitStatus);
+  void exitStatusMusrSetSteps(int exitCode, QProcess::ExitStatus exitStatus);
+
+  void fontChanged( const QFont &f );
+  void textChanged(const bool forced = false);
+  void currentCursorPosition();
+
+  void replace();
+  void replaceAndClose();
+  void replaceAll();
+
+  void applyFontSettings(int);
+  void fileChanged(const QString &fileName);
+  void setFileSystemWatcherActive();
+
+private:
+  bool fDarkMenuIcon; ///< flag indicating if a dark or plain icon shall be used in the menu pull-downs
+  bool fDarkToolBarIcon; ///< flag indicating if a dark or plain icon shall be used in the toolbar
+  PAdmin *fAdmin; ///< pointer to the xml-startup file informations. Needed for different purposes like default working- and executable directories etc.
+  QFileSystemWatcher *fFileSystemWatcher; ///< checks if msr-files are changing on the disk while being open in musredit.
+  bool fFileSystemWatcherActive; ///< flag to enable/disable the file system watcher
+  QTimer fFileSystemWatcherTimeout; ///< timer used to re-enable file system watcher. Needed to delay the re-enabling
+  QString fLastDirInUse; ///< string holding the path from where the last file was loaded.
+  QStringList fMusrFTPrevCmd;
+
+  QMap<QString, QAction*> fActions;
+  QAction *fMusrT0Action;
+
+  PMsr2DataParam *fMsr2DataParam; ///< structure holding the necessary input information for msr2data
+  PFindReplaceData *fFindReplaceData; ///< structure holding the ncessary input for find/replace
+
+  QComboBox *fComboFont; ///< combo box for the font selector
+  QComboBox *fComboSize; ///< combo box for the font size
+  bool fFontChanging; ///< flag needed to prevent some textChanged feature to occure when only the font changed
+
+  QTabWidget *fTabWidget; ///< tab widget in which the text editor(s) are placed
+  QMap<PSubTextEdit*, QString> fFilenames; ///< mapper between tab widget object and filename
+
+  QMenu *fRecentFilesMenu;   ///< recent file menu
+  QAction *fRecentFilesAction[MAX_RECENT_FILES]; ///< array of the recent file actions
+
+  bool getTheme();
+  void fillRecentFiles();
+  QStringList getRunList(QString runListStr, bool &ok);
+  bool fileAlreadyOpen(QFileInfo &finfo, int &idx);
+
+  void switchMenuIcons();
+  void switchToolbarIcons();
+};
+
+
+#endif // _PTEXTEDIT_H_
diff --git a/src/musredit_qt6/musredit/README b/src/musredit_qt6/musredit/README
new file mode 100644
index 00000000..061bb915
--- /dev/null
+++ b/src/musredit_qt6/musredit/README
@@ -0,0 +1,10 @@
+#---------------------------------------------------------------------
+# README
+# Andreas Suter, 2015/10/26
+#---------------------------------------------------------------------
+
+musredit_qt5 requires Qt 5.4.x or newer.
+
+#---------------------------------------------------------------------
+# this is the end ...
+#---------------------------------------------------------------------
diff --git a/src/musredit_qt6/musredit/forms/PChangeDefaultPathsDialog.ui b/src/musredit_qt6/musredit/forms/PChangeDefaultPathsDialog.ui
new file mode 100644
index 00000000..08f553af
--- /dev/null
+++ b/src/musredit_qt6/musredit/forms/PChangeDefaultPathsDialog.ui
@@ -0,0 +1,114 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PChangeDefaultPathsDialog</class>
+ <widget class="QDialog" name="PChangeDefaultPathsDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>528</width>
+    <height>363</height>
+   </rect>
+  </property>
+  <property name="sizePolicy">
+   <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+    <horstretch>0</horstretch>
+    <verstretch>0</verstretch>
+   </sizepolicy>
+  </property>
+  <property name="windowTitle">
+   <string>Dialog</string>
+  </property>
+  <widget class="QWidget" name="">
+   <property name="geometry">
+    <rect>
+     <x>9</x>
+     <y>10</y>
+     <width>512</width>
+     <height>341</height>
+    </rect>
+   </property>
+   <layout class="QVBoxLayout" name="verticalLayout">
+    <item>
+     <widget class="QListWidget" name="fSearchPath_listWidget"/>
+    </item>
+    <item>
+     <layout class="QHBoxLayout" name="horizontalLayout">
+      <item>
+       <spacer name="horizontalSpacer">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>328</width>
+          <height>20</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+      <item>
+       <widget class="QPushButton" name="fAdd_pushButton">
+        <property name="text">
+         <string>Add</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QPushButton" name="fDelete_pushButton">
+        <property name="text">
+         <string>Delete</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </item>
+    <item>
+     <widget class="QDialogButtonBox" name="buttonBox">
+      <property name="orientation">
+       <enum>Qt::Horizontal</enum>
+      </property>
+      <property name="standardButtons">
+       <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+      </property>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>PChangeDefaultPathsDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>228</x>
+     <y>332</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>PChangeDefaultPathsDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>296</x>
+     <y>338</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff --git a/src/musredit_qt6/musredit/forms/PFindDialog.ui b/src/musredit_qt6/musredit/forms/PFindDialog.ui
new file mode 100644
index 00000000..b47be748
--- /dev/null
+++ b/src/musredit_qt6/musredit/forms/PFindDialog.ui
@@ -0,0 +1,215 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PFindDialog</class>
+ <widget class="QDialog" name="PFindDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>349</width>
+    <height>271</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Find Text - musredit</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../musredit.qrc">
+    <normaloff>:/images/musrfit.xpm</normaloff>:/images/musrfit.xpm</iconset>
+  </property>
+  <widget class="QWidget" name="">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>342</width>
+     <height>264</height>
+    </rect>
+   </property>
+   <layout class="QVBoxLayout" name="verticalLayout_2">
+    <item>
+     <widget class="QGroupBox" name="fFind_groupBox">
+      <property name="title">
+       <string>Find</string>
+      </property>
+      <layout class="QFormLayout" name="formLayout_2">
+       <item row="0" column="0" colspan="2">
+        <layout class="QVBoxLayout" name="verticalLayout">
+         <item>
+          <widget class="QLabel" name="fFind_label">
+           <property name="text">
+            <string>Text to find:</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QComboBox" name="fFind_comboBox">
+           <property name="editable">
+            <bool>true</bool>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </item>
+      </layout>
+     </widget>
+    </item>
+    <item>
+     <widget class="QGroupBox" name="fOptions_groupBox">
+      <property name="title">
+       <string>Options</string>
+      </property>
+      <property name="alignment">
+       <set>Qt::AlignBottom|Qt::AlignLeading|Qt::AlignLeft</set>
+      </property>
+      <layout class="QFormLayout" name="formLayout">
+       <item row="0" column="0" colspan="2">
+        <layout class="QGridLayout" name="gridLayout">
+         <item row="0" column="0">
+          <widget class="QCheckBox" name="fCaseSensitive_checkBox">
+           <property name="text">
+            <string>C&amp;ase Sensitive</string>
+           </property>
+          </widget>
+         </item>
+         <item row="0" column="1">
+          <widget class="QCheckBox" name="fFindBackwards_checkBox">
+           <property name="text">
+            <string>Find &amp;backwards</string>
+           </property>
+          </widget>
+         </item>
+         <item row="1" column="0">
+          <widget class="QCheckBox" name="fWholeWordsOnly_checkBox">
+           <property name="text">
+            <string>&amp;Whole words only</string>
+           </property>
+          </widget>
+         </item>
+         <item row="1" column="1">
+          <widget class="QCheckBox" name="fSelectedText_checkBox">
+           <property name="text">
+            <string>&amp;Selected text</string>
+           </property>
+          </widget>
+         </item>
+         <item row="2" column="0">
+          <widget class="QCheckBox" name="fFromCursor_checkBox">
+           <property name="text">
+            <string>From c&amp;ursor</string>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </item>
+      </layout>
+     </widget>
+    </item>
+    <item>
+     <widget class="Line" name="line">
+      <property name="orientation">
+       <enum>Qt::Horizontal</enum>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <layout class="QHBoxLayout" name="horizontalLayout">
+      <item>
+       <spacer name="horizontalSpacer">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>168</width>
+          <height>20</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+      <item>
+       <widget class="QPushButton" name="fFind_pushButton">
+        <property name="text">
+         <string>&amp;Find</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QPushButton" name="fClose_pushButton">
+        <property name="text">
+         <string>&amp;Close</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <tabstops>
+  <tabstop>fFind_comboBox</tabstop>
+  <tabstop>fCaseSensitive_checkBox</tabstop>
+  <tabstop>fWholeWordsOnly_checkBox</tabstop>
+  <tabstop>fFromCursor_checkBox</tabstop>
+  <tabstop>fFindBackwards_checkBox</tabstop>
+  <tabstop>fSelectedText_checkBox</tabstop>
+  <tabstop>fFind_pushButton</tabstop>
+  <tabstop>fClose_pushButton</tabstop>
+ </tabstops>
+ <resources>
+  <include location="../musredit.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>fClose_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PFindDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>287</x>
+     <y>205</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>344</x>
+     <y>228</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fFind_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PFindDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>208</x>
+     <y>211</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>171</x>
+     <y>211</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fFind_comboBox</sender>
+   <signal>editTextChanged(QString)</signal>
+   <receiver>PFindDialog</receiver>
+   <slot>onFindTextAvailable(QString)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>126</x>
+     <y>58</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>105</x>
+     <y>218</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+ <slots>
+  <slot>onFindTextAvailable(QString)</slot>
+ </slots>
+</ui>
diff --git a/src/musredit_qt6/musredit/forms/PGetAsymmetryRunBlockDialog.ui b/src/musredit_qt6/musredit/forms/PGetAsymmetryRunBlockDialog.ui
new file mode 100644
index 00000000..8a7053cf
--- /dev/null
+++ b/src/musredit_qt6/musredit/forms/PGetAsymmetryRunBlockDialog.ui
@@ -0,0 +1,707 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PGetAsymmetryRunBlockDialog</class>
+ <widget class="QDialog" name="PGetAsymmetryRunBlockDialog">
+  <property name="windowModality">
+   <enum>Qt::WindowModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>462</width>
+    <height>506</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Get Asymmetry Run Block Parameters</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../musredit.qrc">
+    <normaloff>:/images/musrfit.xpm</normaloff>:/images/musrfit.xpm</iconset>
+  </property>
+  <widget class="QGroupBox" name="fRunHeaderInfo_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>0</y>
+     <width>441</width>
+     <height>121</height>
+    </rect>
+   </property>
+   <property name="title">
+    <string>Run Header Info</string>
+   </property>
+   <widget class="QLabel" name="fRunFileName_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>30</y>
+      <width>91</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Run File Name</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fBeamline_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>60</y>
+      <width>71</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Beamline</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fInstitute_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>90</y>
+      <width>56</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Institute</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fFileFormat_label">
+    <property name="geometry">
+     <rect>
+      <x>260</x>
+      <y>90</y>
+      <width>91</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>File Format</string>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fRunFileName_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>120</x>
+      <y>26</y>
+      <width>311</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fBeamline_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>120</x>
+      <y>56</y>
+      <width>113</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QComboBox" name="fInstitute_comboBox">
+    <property name="geometry">
+     <rect>
+      <x>120</x>
+      <y>86</y>
+      <width>77</width>
+      <height>25</height>
+     </rect>
+    </property>
+    <item>
+     <property name="text">
+      <string>PSI</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>RAL</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>TRIUMF</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>JPARC</string>
+     </property>
+    </item>
+   </widget>
+   <widget class="QComboBox" name="fFileFormat_comboBox">
+    <property name="geometry">
+     <rect>
+      <x>336</x>
+      <y>86</y>
+      <width>91</width>
+      <height>25</height>
+     </rect>
+    </property>
+    <item>
+     <property name="text">
+      <string>NeXuS</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>ROOT-NPP</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>ROOT-PPC</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>PSI-BIN</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>PSI-MDU</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>MUD</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>MDU-ASCII</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>ASCII</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>DB</string>
+     </property>
+    </item>
+   </widget>
+  </widget>
+  <widget class="QGroupBox" name="fRequiredEntries_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>120</y>
+     <width>441</width>
+     <height>241</height>
+    </rect>
+   </property>
+   <property name="title">
+    <string>Required Entries</string>
+   </property>
+   <widget class="QLabel" name="fMap_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>30</y>
+      <width>56</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Map</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fForwardHistoNo_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>60</y>
+      <width>111</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Forward Histo No</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fBackwardHistoNo_label">
+    <property name="geometry">
+     <rect>
+      <x>240</x>
+      <y>60</y>
+      <width>121</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Backward Histo No</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fDataRange_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>90</y>
+      <width>81</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Data  Range</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fBackgroundFix_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>120</y>
+      <width>111</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Background Fix</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fOr_label">
+    <property name="geometry">
+     <rect>
+      <x>310</x>
+      <y>120</y>
+      <width>31</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="font">
+     <font>
+      <weight>75</weight>
+      <bold>true</bold>
+     </font>
+    </property>
+    <property name="text">
+     <string>OR</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fBackgroundRange_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>150</y>
+      <width>121</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Background Range</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fFitRange_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>180</y>
+      <width>71</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Fit Range</string>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fMap_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>60</x>
+      <y>26</y>
+      <width>371</width>
+      <height>26</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>0  0  0  0  0  0  0  0  0</string>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fForwardHistoNo_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>150</x>
+      <y>56</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fBackwardHistoNo_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>360</x>
+      <y>56</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fDataForwardStart_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>150</x>
+      <y>86</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fDataForwardEnd_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>220</x>
+      <y>86</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fDataBackwardStart_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>290</x>
+      <y>86</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fDataBackwardEnd_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>360</x>
+      <y>86</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fBackgroundForwardFix_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>150</x>
+      <y>116</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fBackgroundBackwardFix_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>220</x>
+      <y>116</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fBackgroundForwardStart_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>150</x>
+      <y>146</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fBackgroundForwardEnd_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>220</x>
+      <y>146</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fBackgroundBackwardStart_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>290</x>
+      <y>146</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fBackgroundBackwardEnd_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>360</x>
+      <y>146</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fFitRangeStart_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>150</x>
+      <y>176</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fFitRangeEnd_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>220</x>
+      <y>176</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fPacking_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>150</x>
+      <y>206</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>1</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fPacking_textLabel">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>210</y>
+      <width>111</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Packing/Binning</string>
+    </property>
+   </widget>
+  </widget>
+  <widget class="QGroupBox" name="fOptionalEntries_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>360</y>
+     <width>441</width>
+     <height>91</height>
+    </rect>
+   </property>
+   <property name="title">
+    <string>Optional Entries</string>
+   </property>
+   <widget class="QLabel" name="fAplha_textLabel">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>30</y>
+      <width>131</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Alpha (default = 1.0)</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fBeta_label">
+    <property name="geometry">
+     <rect>
+      <x>240</x>
+      <y>30</y>
+      <width>121</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Beta (default = 1.0)</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fT0_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>60</y>
+      <width>241</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>t0 (reqired if not given in the data file)</string>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fAlpha_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>150</x>
+      <y>26</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string/>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fBeta_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>360</x>
+      <y>26</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string/>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fT0Forward_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>290</x>
+      <y>56</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fT0Backward_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>360</x>
+      <y>56</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+  </widget>
+  <widget class="QWidget" name="layoutWidget">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>460</y>
+     <width>441</width>
+     <height>39</height>
+    </rect>
+   </property>
+   <layout class="QVBoxLayout" name="verticalLayout">
+    <item>
+     <widget class="Line" name="line">
+      <property name="orientation">
+       <enum>Qt::Horizontal</enum>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <layout class="QHBoxLayout" name="horizontalLayout">
+      <item>
+       <widget class="QPushButton" name="fHelp_pushButton">
+        <property name="text">
+         <string>&amp;Help</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <spacer name="horizontalSpacer">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>188</width>
+          <height>20</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+      <item>
+       <widget class="QPushButton" name="fOk_pushButton">
+        <property name="text">
+         <string>&amp;OK</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QPushButton" name="fCancel_pushButton">
+        <property name="text">
+         <string>&amp;Cancel</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <resources>
+  <include location="../musredit.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>fCancel_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetAsymmetryRunBlockDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>458</x>
+     <y>434</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>471</x>
+     <y>415</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fOk_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetAsymmetryRunBlockDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>394</x>
+     <y>438</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>407</x>
+     <y>406</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fHelp_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetAsymmetryRunBlockDialog</receiver>
+   <slot>helpContent()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>47</x>
+     <y>437</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>70</x>
+     <y>398</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+ <slots>
+  <slot>helpContent()</slot>
+ </slots>
+</ui>
diff --git a/src/musredit_qt6/musredit/forms/PGetFourierBlockDialog.ui b/src/musredit_qt6/musredit/forms/PGetFourierBlockDialog.ui
new file mode 100644
index 00000000..fb742e99
--- /dev/null
+++ b/src/musredit_qt6/musredit/forms/PGetFourierBlockDialog.ui
@@ -0,0 +1,399 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PGetFourierBlockDialog</class>
+ <widget class="QDialog" name="PGetFourierBlockDialog">
+  <property name="windowModality">
+   <enum>Qt::WindowModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>367</width>
+    <height>269</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Get Fourier</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../musredit.qrc">
+    <normaloff>:/images/musrfit.xpm</normaloff>:/images/musrfit.xpm</iconset>
+  </property>
+  <widget class="QWidget" name="layoutWidget">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>230</y>
+     <width>351</width>
+     <height>32</height>
+    </rect>
+   </property>
+   <layout class="QHBoxLayout" name="horizontalLayout">
+    <item>
+     <widget class="QPushButton" name="fHelp_pushButton">
+      <property name="text">
+       <string>&amp;Help</string>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <spacer name="horizontalSpacer">
+      <property name="orientation">
+       <enum>Qt::Horizontal</enum>
+      </property>
+      <property name="sizeHint" stdset="0">
+       <size>
+        <width>118</width>
+        <height>20</height>
+       </size>
+      </property>
+     </spacer>
+    </item>
+    <item>
+     <widget class="QPushButton" name="fOk_pushButton">
+      <property name="text">
+       <string>&amp;OK</string>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <widget class="QPushButton" name="fCancel_pushButton">
+      <property name="text">
+       <string>&amp;Cancel</string>
+      </property>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+  <widget class="QLabel" name="fUnits_label">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>10</y>
+     <width>61</width>
+     <height>17</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>Units</string>
+   </property>
+  </widget>
+  <widget class="QLabel" name="fFourierPower_label">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>45</y>
+     <width>91</width>
+     <height>17</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>Fourier Power</string>
+   </property>
+  </widget>
+  <widget class="QLabel" name="fApodization_label">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>75</y>
+     <width>141</width>
+     <height>17</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>Apodization</string>
+   </property>
+  </widget>
+  <widget class="QLabel" name="fPlot_label">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>110</y>
+     <width>61</width>
+     <height>17</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>Plot</string>
+   </property>
+  </widget>
+  <widget class="QLabel" name="fPhase_label">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>140</y>
+     <width>61</width>
+     <height>17</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>Phase</string>
+   </property>
+  </widget>
+  <widget class="QLabel" name="fPhaseCorrectionRange_label">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>160</y>
+     <width>111</width>
+     <height>41</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
+p, li { white-space: pre-wrap; }
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'MS Shell Dlg 2'; font-size:8.25pt; font-weight:400; font-style:normal;&quot;&gt;
+&lt;p align=&quot;center&quot; style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Lucida Grande'; font-size:8pt;&quot;&gt;Phase Correction&lt;/span&gt;&lt;/p&gt;
+&lt;p align=&quot;center&quot; style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Lucida Grande'; font-size:8pt;&quot;&gt;Range&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+   </property>
+  </widget>
+  <widget class="QLabel" name="fRange_label">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>200</y>
+     <width>61</width>
+     <height>17</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>Range</string>
+   </property>
+  </widget>
+  <widget class="QComboBox" name="fUnits_comboBox">
+   <property name="geometry">
+    <rect>
+     <x>130</x>
+     <y>5</y>
+     <width>111</width>
+     <height>26</height>
+    </rect>
+   </property>
+   <item>
+    <property name="text">
+     <string>Gauss</string>
+    </property>
+   </item>
+   <item>
+    <property name="text">
+     <string>Tesla</string>
+    </property>
+   </item>
+   <item>
+    <property name="text">
+     <string>MHz</string>
+    </property>
+   </item>
+   <item>
+    <property name="text">
+     <string>Mc/s</string>
+    </property>
+   </item>
+  </widget>
+  <widget class="QLineEdit" name="fFourierPower_lineEdit">
+   <property name="geometry">
+    <rect>
+     <x>130</x>
+     <y>40</y>
+     <width>113</width>
+     <height>22</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QComboBox" name="fApodization_comboBox">
+   <property name="geometry">
+    <rect>
+     <x>130</x>
+     <y>70</y>
+     <width>111</width>
+     <height>26</height>
+    </rect>
+   </property>
+   <item>
+    <property name="text">
+     <string>None</string>
+    </property>
+   </item>
+   <item>
+    <property name="text">
+     <string>Weak</string>
+    </property>
+   </item>
+   <item>
+    <property name="text">
+     <string>Medium</string>
+    </property>
+   </item>
+   <item>
+    <property name="text">
+     <string>Strong</string>
+    </property>
+   </item>
+  </widget>
+  <widget class="QComboBox" name="fPlot_comboBox">
+   <property name="geometry">
+    <rect>
+     <x>130</x>
+     <y>105</y>
+     <width>111</width>
+     <height>26</height>
+    </rect>
+   </property>
+   <item>
+    <property name="text">
+     <string>Power</string>
+    </property>
+   </item>
+   <item>
+    <property name="text">
+     <string>Real</string>
+    </property>
+   </item>
+   <item>
+    <property name="text">
+     <string>Imag</string>
+    </property>
+   </item>
+   <item>
+    <property name="text">
+     <string>Real &amp; Imag</string>
+    </property>
+   </item>
+   <item>
+    <property name="text">
+     <string>Phase</string>
+    </property>
+   </item>
+  </widget>
+  <widget class="QLineEdit" name="fPhase_lineEdit">
+   <property name="geometry">
+    <rect>
+     <x>130</x>
+     <y>140</y>
+     <width>113</width>
+     <height>22</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QLineEdit" name="fPhaseCorrectionRangeLow_lineEdit">
+   <property name="geometry">
+    <rect>
+     <x>130</x>
+     <y>170</y>
+     <width>113</width>
+     <height>22</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QLineEdit" name="fPhaseCorrectionRangeUp_lineEdit">
+   <property name="geometry">
+    <rect>
+     <x>250</x>
+     <y>170</y>
+     <width>113</width>
+     <height>22</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QLineEdit" name="fRangeLow_lineEdit">
+   <property name="geometry">
+    <rect>
+     <x>130</x>
+     <y>200</y>
+     <width>113</width>
+     <height>22</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QLineEdit" name="fRangeUp_lineEdit">
+   <property name="geometry">
+    <rect>
+     <x>250</x>
+     <y>200</y>
+     <width>113</width>
+     <height>22</height>
+    </rect>
+   </property>
+  </widget>
+ </widget>
+ <tabstops>
+  <tabstop>fOk_pushButton</tabstop>
+  <tabstop>fCancel_pushButton</tabstop>
+  <tabstop>fHelp_pushButton</tabstop>
+ </tabstops>
+ <resources>
+  <include location="../musredit.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>fCancel_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetFourierBlockDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>337</x>
+     <y>272</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>355</x>
+     <y>225</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fOk_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetFourierBlockDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>286</x>
+     <y>265</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>243</x>
+     <y>227</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fHelp_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetFourierBlockDialog</receiver>
+   <slot>helpContent()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>50</x>
+     <y>273</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>115</x>
+     <y>221</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fOk_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetFourierBlockDialog</receiver>
+   <slot>fillFourierBlock()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>247</x>
+     <y>274</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>175</x>
+     <y>264</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+ <slots>
+  <slot>helpContent()</slot>
+  <slot>fillFourierBlock()</slot>
+ </slots>
+</ui>
diff --git a/src/musredit_qt6/musredit/forms/PGetFunctionsBlockDialog.ui b/src/musredit_qt6/musredit/forms/PGetFunctionsBlockDialog.ui
new file mode 100644
index 00000000..2b0913a6
--- /dev/null
+++ b/src/musredit_qt6/musredit/forms/PGetFunctionsBlockDialog.ui
@@ -0,0 +1,259 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PGetFunctionsBlockDialog</class>
+ <widget class="QDialog" name="PGetFunctionsBlockDialog">
+  <property name="windowModality">
+   <enum>Qt::WindowModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>636</width>
+    <height>604</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Get Functions</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../musredit.qrc">
+    <normaloff>:/images/musrfit.xpm</normaloff>:/images/musrfit.xpm</iconset>
+  </property>
+  <widget class="QWidget" name="layoutWidget">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>570</y>
+     <width>631</width>
+     <height>32</height>
+    </rect>
+   </property>
+   <layout class="QHBoxLayout" name="horizontalLayout">
+    <item>
+     <widget class="QPushButton" name="fHelp_pushButton">
+      <property name="text">
+       <string>&amp;Help</string>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <spacer name="horizontalSpacer">
+      <property name="orientation">
+       <enum>Qt::Horizontal</enum>
+      </property>
+      <property name="sizeHint" stdset="0">
+       <size>
+        <width>118</width>
+        <height>20</height>
+       </size>
+      </property>
+     </spacer>
+    </item>
+    <item>
+     <widget class="QPushButton" name="fOk_pushButton">
+      <property name="text">
+       <string>&amp;OK</string>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <widget class="QPushButton" name="fCancel_pushButton">
+      <property name="text">
+       <string>&amp;Cancel</string>
+      </property>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+  <widget class="QTextEdit" name="fHelp_textEdit">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>10</y>
+     <width>631</width>
+     <height>201</height>
+    </rect>
+   </property>
+   <property name="readOnly">
+    <bool>true</bool>
+   </property>
+   <property name="html">
+    <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
+p, li { white-space: pre-wrap; }
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Sans Serif'; font-size:9pt; font-weight:400; font-style:normal;&quot;&gt;
+&lt;table style=&quot;-qt-table-type: root; margin-top:4px; margin-bottom:4px; margin-left:4px; margin-right:4px;&quot;&gt;
+&lt;tr&gt;
+&lt;td style=&quot;border: none;&quot;&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Lucida Grande'; font-size:10pt;&quot;&gt;Supported basic arithmetics: &lt;/span&gt;&lt;span style=&quot; font-family:'Courier New,courier'; font-size:10pt;&quot;&gt;+, -, *, /, ()&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Lucida Grande'; font-size:10pt;&quot;&gt;Supported built-in functions; &lt;/span&gt;&lt;span style=&quot; font-family:'Courier New,courier'; font-size:10pt;&quot;&gt;cos(), sin(), tan(), acos(), asin(), atan(), cosh(), sinh(), tanh(), acosh(), asinh(), atanh(), exp(), log(), ln()&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Lucida Grande'; font-size:10pt;&quot;&gt;Supported pre-defined constants&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Courier New,courier'; font-size:10pt;&quot;&gt;gamma_mu = 0.0135538817 (MHz/G)&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Courier New,courier'; font-size:10pt;&quot;&gt;pi = 3.1415926535897932846&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Lucida Grande'; font-size:10pt;&quot;&gt;Parameters and Maps are reached via parX, mapY, where X, Y are numbers, e.g. par1, map3&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Lucida Grande'; font-size:10pt;&quot;&gt;Examples:&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Courier New,courier'; font-size:10pt;&quot;&gt;fun1 = gamma_mu * par3&lt;/span&gt;&lt;span style=&quot; font-family:'Lucida Grande'; font-size:10pt;&quot;&gt; valid&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Courier New,courier'; font-size:10pt;&quot;&gt;fun2 = par2/map4 * sin(par3*par5)&lt;/span&gt;&lt;span style=&quot; font-family:'Lucida Grande'; font-size:10pt;&quot;&gt; valid&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Courier New,courier'; font-size:10pt;&quot;&gt;fun3 = fun1 + par6&lt;/span&gt;&lt;span style=&quot; font-family:'Lucida Grande'; font-size:10pt;&quot;&gt; invalid, since functions cannot be used with the functions definition&lt;/span&gt;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/body&gt;&lt;/html&gt;</string>
+   </property>
+  </widget>
+  <widget class="QGroupBox" name="fInput_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>210</y>
+     <width>631</width>
+     <height>101</height>
+    </rect>
+   </property>
+   <property name="title">
+    <string>Input</string>
+   </property>
+   <widget class="QLineEdit" name="fFunctionInput_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>90</x>
+      <y>30</y>
+      <width>521</width>
+      <height>22</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fFunction_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>30</y>
+      <width>71</width>
+      <height>17</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Function:</string>
+    </property>
+   </widget>
+   <widget class="QPushButton" name="fAdd_pushButton">
+    <property name="geometry">
+     <rect>
+      <x>500</x>
+      <y>60</y>
+      <width>113</width>
+      <height>32</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Add</string>
+    </property>
+   </widget>
+  </widget>
+  <widget class="QPlainTextEdit" name="fFunctionBlock_plainTextEdit">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>310</y>
+     <width>631</width>
+     <height>251</height>
+    </rect>
+   </property>
+   <property name="plainText">
+    <string>#####################################################
+FUNCTIONS</string>
+   </property>
+  </widget>
+ </widget>
+ <tabstops>
+  <tabstop>fOk_pushButton</tabstop>
+  <tabstop>fCancel_pushButton</tabstop>
+  <tabstop>fHelp_pushButton</tabstop>
+ </tabstops>
+ <resources>
+  <include location="../musredit.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>fCancel_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetFunctionsBlockDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>629</x>
+     <y>584</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>368</x>
+     <y>565</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fOk_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetFunctionsBlockDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>538</x>
+     <y>577</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>265</x>
+     <y>583</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fHelp_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetFunctionsBlockDialog</receiver>
+   <slot>helpContent()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>41</x>
+     <y>585</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>111</x>
+     <y>582</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fAdd_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetFunctionsBlockDialog</receiver>
+   <slot>addFunction()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>555</x>
+     <y>289</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>410</x>
+     <y>591</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fFunctionInput_lineEdit</sender>
+   <signal>returnPressed()</signal>
+   <receiver>PGetFunctionsBlockDialog</receiver>
+   <slot>addFunction()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>399</x>
+     <y>252</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>413</x>
+     <y>570</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+ <slots>
+  <slot>helpContent()</slot>
+  <slot>addFunction()</slot>
+ </slots>
+</ui>
diff --git a/src/musredit_qt6/musredit/forms/PGetMusrFTOptionsDialog.ui b/src/musredit_qt6/musredit/forms/PGetMusrFTOptionsDialog.ui
new file mode 100644
index 00000000..3b958e65
--- /dev/null
+++ b/src/musredit_qt6/musredit/forms/PGetMusrFTOptionsDialog.ui
@@ -0,0 +1,863 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PGetMusrFTOptionsDialog</class>
+ <widget class="QDialog" name="PGetMusrFTOptionsDialog">
+  <property name="windowModality">
+   <enum>Qt::WindowModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>711</width>
+    <height>650</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>musrFT Options</string>
+  </property>
+  <widget class="QGroupBox" name="fFourier_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>20</x>
+     <y>400</y>
+     <width>671</width>
+     <height>201</height>
+    </rect>
+   </property>
+   <property name="font">
+    <font>
+     <weight>75</weight>
+     <bold>true</bold>
+    </font>
+   </property>
+   <property name="title">
+    <string> Fourier </string>
+   </property>
+   <widget class="QWidget" name="">
+    <property name="geometry">
+     <rect>
+      <x>21</x>
+      <y>31</y>
+      <width>641</width>
+      <height>156</height>
+     </rect>
+    </property>
+    <layout class="QVBoxLayout" name="verticalLayout_2">
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_22">
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_13">
+         <item>
+          <widget class="QLabel" name="fFourierOptions_label">
+           <property name="text">
+            <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
+p, li { white-space: pre-wrap; }
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Sans Serif'; font-size:10pt; font-weight:400; font-style:normal;&quot;&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-weight:600;&quot;&gt;Options&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QComboBox" name="fFourierOption_comboBox">
+           <item>
+            <property name="text">
+             <string>UnDef</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>real</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>imag</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>real+imag</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>power</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>phase</string>
+            </property>
+           </item>
+          </widget>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <spacer name="horizontalSpacer_6">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>218</width>
+           <height>20</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_14">
+         <item>
+          <widget class="QLabel" name="fFourierUnits_label">
+           <property name="text">
+            <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
+p, li { white-space: pre-wrap; }
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Sans Serif'; font-size:10pt; font-weight:400; font-style:normal;&quot;&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-weight:600;&quot;&gt;Units&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QComboBox" name="fFourierUnits_comboBox">
+           <item>
+            <property name="text">
+             <string>UnDef</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Gauss</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Tesla</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>MHz</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Mc/s</string>
+            </property>
+           </item>
+          </widget>
+         </item>
+        </layout>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_23">
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_19">
+         <item>
+          <widget class="QLabel" name="fFourierPower_label">
+           <property name="text">
+            <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
+p, li { white-space: pre-wrap; }
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Sans Serif'; font-size:10pt; font-weight:400; font-style:normal;&quot;&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-weight:600;&quot;&gt;Power&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QLineEdit" name="fFourierPower_lineEdit"/>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <spacer name="horizontalSpacer_5">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>88</width>
+           <height>20</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_17">
+         <item>
+          <widget class="QLabel" name="fLifetimeCorrection_label">
+           <property name="text">
+            <string>Lifetime Correction</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QLineEdit" name="fLifetimeCorrection_lineEdit"/>
+         </item>
+        </layout>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_20">
+       <item>
+        <widget class="QLabel" name="fFourierRange_label">
+         <property name="text">
+          <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
+p, li { white-space: pre-wrap; }
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Sans Serif'; font-size:10pt; font-weight:400; font-style:normal;&quot;&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-weight:600;&quot;&gt;Range&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_16">
+         <item>
+          <widget class="QLabel" name="fFourierRangeStart_label">
+           <property name="text">
+            <string>Start</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QLineEdit" name="fFourierRangeStart_lineEdit"/>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_15">
+         <item>
+          <widget class="QLabel" name="fFourierRangeEnd_label">
+           <property name="text">
+            <string>End</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QLineEdit" name="fFourierRangeEnd_lineEdit"/>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <spacer name="horizontalSpacer_3">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>118</width>
+           <height>20</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_18">
+       <item>
+        <widget class="QCheckBox" name="fAveragedView_checkBox">
+         <property name="text">
+          <string>Average All</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="fAveragePerDataSet_checkBox">
+         <property name="text">
+          <string>Average per Data Set</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <spacer name="horizontalSpacer_7">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>88</width>
+           <height>20</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="fCreateMsrFile_checkBox">
+         <property name="text">
+          <string>Create msr-File</string>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_21">
+       <item>
+        <widget class="QLabel" name="fFourierTitle_label">
+         <property name="text">
+          <string>Title</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QLineEdit" name="fFourierTitle_lineEdit"/>
+       </item>
+      </layout>
+     </item>
+    </layout>
+   </widget>
+  </widget>
+  <widget class="QGroupBox" name="fHistoInfo_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>20</x>
+     <y>160</y>
+     <width>671</width>
+     <height>231</height>
+    </rect>
+   </property>
+   <property name="font">
+    <font>
+     <weight>75</weight>
+     <bold>true</bold>
+    </font>
+   </property>
+   <property name="title">
+    <string> Histo Info </string>
+   </property>
+   <widget class="QWidget" name="layoutWidget_0">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>30</y>
+      <width>641</width>
+      <height>188</height>
+     </rect>
+    </property>
+    <layout class="QVBoxLayout" name="verticalLayout">
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_3">
+       <item>
+        <widget class="QLabel" name="fBkgRange_label">
+         <property name="font">
+          <font>
+           <weight>75</weight>
+           <bold>true</bold>
+          </font>
+         </property>
+         <property name="text">
+          <string>Background Range (in Bins)</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout">
+         <item>
+          <widget class="QLabel" name="fBkgStartBin_label">
+           <property name="text">
+            <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
+p, li { white-space: pre-wrap; }
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Sans Serif'; font-size:10pt; font-weight:600; font-style:normal;&quot;&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;StartBin&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QLineEdit" name="fBkgRangeStartBin_lineEdit"/>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_2">
+         <item>
+          <widget class="QLabel" name="fBkgEndBin_label">
+           <property name="text">
+            <string>EndBin:</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QLineEdit" name="fBkgRangeEndBin_lineEdit"/>
+         </item>
+        </layout>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_4">
+       <item>
+        <widget class="QLabel" name="fBkgList_label">
+         <property name="text">
+          <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
+p, li { white-space: pre-wrap; }
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Sans Serif'; font-size:10pt; font-weight:400; font-style:normal;&quot;&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-weight:600;&quot;&gt;Background List&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QLineEdit" name="fBkgList_lineEdit"/>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_7">
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_6">
+         <item>
+          <widget class="QLabel" name="fApodization_label">
+           <property name="text">
+            <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
+p, li { white-space: pre-wrap; }
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Sans Serif'; font-size:10pt; font-weight:400; font-style:normal;&quot;&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-weight:600;&quot;&gt;Apodization&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QComboBox" name="fApodization_comboBox">
+           <item>
+            <property name="text">
+             <string>none</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>weak</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>medium</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>strong</string>
+            </property>
+           </item>
+          </widget>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_5">
+         <item>
+          <widget class="QLabel" name="fPacking_label">
+           <property name="text">
+            <string>Packing</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QLineEdit" name="fPacking_lineEdit"/>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <spacer name="horizontalSpacer">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>168</width>
+           <height>20</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_10">
+       <item>
+        <widget class="QLabel" name="fTimeRange_label">
+         <property name="text">
+          <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
+p, li { white-space: pre-wrap; }
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Sans Serif'; font-size:10pt; font-weight:600; font-style:normal;&quot;&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;Time Range (usec)&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <spacer name="horizontalSpacer_2">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>40</width>
+           <height>20</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_9">
+         <item>
+          <widget class="QLabel" name="fTimeRangeStart_label">
+           <property name="text">
+            <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
+p, li { white-space: pre-wrap; }
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Sans Serif'; font-size:10pt; font-weight:600; font-style:normal;&quot;&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;Start&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QLineEdit" name="fTimeRangeStart_lineEdit"/>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_8">
+         <item>
+          <widget class="QLabel" name="fTimeRangeEnd_label">
+           <property name="text">
+            <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
+p, li { white-space: pre-wrap; }
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Sans Serif'; font-size:10pt; font-weight:600; font-style:normal;&quot;&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;End&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QLineEdit" name="fTimeRangeEnd_lineEdit"/>
+         </item>
+        </layout>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_11">
+       <item>
+        <widget class="QLabel" name="fHistoList_label">
+         <property name="text">
+          <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
+p, li { white-space: pre-wrap; }
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Sans Serif'; font-size:10pt; font-weight:600; font-style:normal;&quot;&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;Histo List&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QLineEdit" name="fHistoList_lineEdit"/>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_12">
+       <item>
+        <widget class="QLabel" name="fT0_label">
+         <property name="text">
+          <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
+p, li { white-space: pre-wrap; }
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Sans Serif'; font-size:10pt; font-weight:600; font-style:normal;&quot;&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;T0's&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QLineEdit" name="fT0_lineEdit"/>
+       </item>
+      </layout>
+     </item>
+    </layout>
+   </widget>
+  </widget>
+  <widget class="QGroupBox" name="fFileSelection_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>20</x>
+     <y>10</y>
+     <width>671</width>
+     <height>141</height>
+    </rect>
+   </property>
+   <property name="font">
+    <font>
+     <weight>75</weight>
+     <bold>true</bold>
+    </font>
+   </property>
+   <property name="title">
+    <string>File Selection</string>
+   </property>
+   <widget class="QWidget" name="layoutWidget_1">
+    <property name="geometry">
+     <rect>
+      <x>19</x>
+      <y>31</y>
+      <width>641</width>
+      <height>96</height>
+     </rect>
+    </property>
+    <layout class="QVBoxLayout" name="verticalLayout_3">
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_27">
+       <item>
+        <widget class="QCheckBox" name="fCurrentMsrFile_checkBox">
+         <property name="text">
+          <string>Current msr-File</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="fAllMsrFiles_checkBox">
+         <property name="text">
+          <string>ALL msr-Files</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <spacer name="horizontalSpacer_8">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>318</width>
+           <height>20</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_25">
+       <item>
+        <widget class="QPushButton" name="fMsrFileSelector_pushButton">
+         <property name="text">
+          <string>Select msr-File(s)</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QLineEdit" name="fMsrFileSelector_lineEdit">
+         <property name="minimumSize">
+          <size>
+           <width>0</width>
+           <height>23</height>
+          </size>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QPushButton" name="fMsrFileNameClear_pushButton">
+         <property name="toolTip">
+          <string>clear msr-file name list</string>
+         </property>
+         <property name="text">
+          <string>Clear</string>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_26">
+       <item>
+        <widget class="QPushButton" name="fDataFileSelector_pushButton">
+         <property name="text">
+          <string>Select data-File(s)</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QLineEdit" name="fDataFileSelector_lineEdit">
+         <property name="minimumSize">
+          <size>
+           <width>0</width>
+           <height>23</height>
+          </size>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QPushButton" name="fDataFileNameClear_pushButton">
+         <property name="toolTip">
+          <string>clear data-file name list</string>
+         </property>
+         <property name="text">
+          <string>Clear</string>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+    </layout>
+   </widget>
+  </widget>
+  <widget class="QWidget" name="layoutWidget_3">
+   <property name="geometry">
+    <rect>
+     <x>20</x>
+     <y>610</y>
+     <width>671</width>
+     <height>29</height>
+    </rect>
+   </property>
+   <layout class="QHBoxLayout" name="horizontalLayout_24">
+    <item>
+     <widget class="QPushButton" name="fHelp_pushButton">
+      <property name="text">
+       <string>Help</string>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <spacer name="horizontalSpacer_4">
+      <property name="orientation">
+       <enum>Qt::Horizontal</enum>
+      </property>
+      <property name="sizeHint" stdset="0">
+       <size>
+        <width>78</width>
+        <height>20</height>
+       </size>
+      </property>
+     </spacer>
+    </item>
+    <item>
+     <widget class="QPushButton" name="fResetAll_pushButton">
+      <property name="font">
+       <font>
+        <weight>75</weight>
+        <bold>true</bold>
+       </font>
+      </property>
+      <property name="text">
+       <string>Reset All</string>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <spacer name="horizontalSpacer_9">
+      <property name="orientation">
+       <enum>Qt::Horizontal</enum>
+      </property>
+      <property name="sizeHint" stdset="0">
+       <size>
+        <width>40</width>
+        <height>20</height>
+       </size>
+      </property>
+     </spacer>
+    </item>
+    <item>
+     <widget class="QDialogButtonBox" name="buttonBox">
+      <property name="orientation">
+       <enum>Qt::Horizontal</enum>
+      </property>
+      <property name="standardButtons">
+       <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+      </property>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <tabstops>
+  <tabstop>fCurrentMsrFile_checkBox</tabstop>
+  <tabstop>fAllMsrFiles_checkBox</tabstop>
+  <tabstop>fMsrFileSelector_pushButton</tabstop>
+  <tabstop>fMsrFileSelector_lineEdit</tabstop>
+  <tabstop>fMsrFileNameClear_pushButton</tabstop>
+  <tabstop>fDataFileSelector_pushButton</tabstop>
+  <tabstop>fDataFileSelector_lineEdit</tabstop>
+  <tabstop>fDataFileNameClear_pushButton</tabstop>
+  <tabstop>fBkgRangeStartBin_lineEdit</tabstop>
+  <tabstop>fBkgRangeEndBin_lineEdit</tabstop>
+  <tabstop>fBkgList_lineEdit</tabstop>
+  <tabstop>fApodization_comboBox</tabstop>
+  <tabstop>fPacking_lineEdit</tabstop>
+  <tabstop>fTimeRangeStart_lineEdit</tabstop>
+  <tabstop>fTimeRangeEnd_lineEdit</tabstop>
+  <tabstop>fHistoList_lineEdit</tabstop>
+  <tabstop>fT0_lineEdit</tabstop>
+  <tabstop>fFourierOption_comboBox</tabstop>
+  <tabstop>fFourierUnits_comboBox</tabstop>
+  <tabstop>fFourierPower_lineEdit</tabstop>
+  <tabstop>fLifetimeCorrection_lineEdit</tabstop>
+  <tabstop>fFourierRangeStart_lineEdit</tabstop>
+  <tabstop>fFourierRangeEnd_lineEdit</tabstop>
+  <tabstop>fAveragedView_checkBox</tabstop>
+  <tabstop>fCreateMsrFile_checkBox</tabstop>
+  <tabstop>fFourierTitle_lineEdit</tabstop>
+  <tabstop>fResetAll_pushButton</tabstop>
+  <tabstop>fHelp_pushButton</tabstop>
+  <tabstop>buttonBox</tabstop>
+ </tabstops>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>PGetMusrFTOptionsDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>683</x>
+     <y>611</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>PGetMusrFTOptionsDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>689</x>
+     <y>611</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fHelp_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetMusrFTOptionsDialog</receiver>
+   <slot>helpContent()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>85</x>
+     <y>627</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>147</x>
+     <y>624</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+ <slots>
+  <slot>helpContent()</slot>
+ </slots>
+</ui>
diff --git a/src/musredit_qt6/musredit/forms/PGetNonMusrRunBlockDialog.ui b/src/musredit_qt6/musredit/forms/PGetNonMusrRunBlockDialog.ui
new file mode 100644
index 00000000..026fa8d1
--- /dev/null
+++ b/src/musredit_qt6/musredit/forms/PGetNonMusrRunBlockDialog.ui
@@ -0,0 +1,465 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PGetNonMusrRunBlockDialog</class>
+ <widget class="QDialog" name="PGetNonMusrRunBlockDialog">
+  <property name="windowModality">
+   <enum>Qt::WindowModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>419</width>
+    <height>307</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Get NonMusr Run Block Parameters</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../musredit.qrc">
+    <normaloff>:/images/musrfit.xpm</normaloff>:/images/musrfit.xpm</iconset>
+  </property>
+  <widget class="QGroupBox" name="fRunHeaderInfo_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>0</y>
+     <width>401</width>
+     <height>131</height>
+    </rect>
+   </property>
+   <property name="title">
+    <string>Run Header Info</string>
+   </property>
+   <widget class="QWidget" name="layoutWidget_0">
+    <property name="geometry">
+     <rect>
+      <x>10</x>
+      <y>30</y>
+      <width>381</width>
+      <height>28</height>
+     </rect>
+    </property>
+    <layout class="QHBoxLayout" name="horizontalLayout_2">
+     <item>
+      <widget class="QLabel" name="fRunFileName_label">
+       <property name="text">
+        <string>Run File Name</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QLineEdit" name="fRunFileName_lineEdit"/>
+     </item>
+    </layout>
+   </widget>
+   <widget class="QWidget" name="layoutWidget_1">
+    <property name="geometry">
+     <rect>
+      <x>11</x>
+      <y>60</y>
+      <width>381</width>
+      <height>28</height>
+     </rect>
+    </property>
+    <layout class="QHBoxLayout" name="horizontalLayout_3">
+     <item>
+      <widget class="QLabel" name="fBeamline_label">
+       <property name="text">
+        <string>Beamline</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_3">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeType">
+        <enum>QSizePolicy::Fixed</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>23</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QLineEdit" name="fBeamline_lineEdit"/>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_2">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+    </layout>
+   </widget>
+   <widget class="QWidget" name="layoutWidget_2">
+    <property name="geometry">
+     <rect>
+      <x>10</x>
+      <y>91</y>
+      <width>381</width>
+      <height>27</height>
+     </rect>
+    </property>
+    <layout class="QHBoxLayout" name="horizontalLayout_4">
+     <item>
+      <widget class="QLabel" name="fInstitute_label">
+       <property name="text">
+        <string>Institute</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_4">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeType">
+        <enum>QSizePolicy::Fixed</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>34</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QComboBox" name="fInstitute_comboBox">
+       <item>
+        <property name="text">
+         <string>PSI</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>RAL</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>TRIUMF</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>JPARC</string>
+        </property>
+       </item>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_5">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QLabel" name="fFileFormat_label">
+       <property name="text">
+        <string>File Format</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QComboBox" name="fFileFormat_comboBox">
+       <item>
+        <property name="text">
+         <string>ASCII</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>DB</string>
+        </property>
+       </item>
+      </widget>
+     </item>
+    </layout>
+   </widget>
+  </widget>
+  <widget class="QGroupBox" name="fReqiredEntries_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>130</y>
+     <width>401</width>
+     <height>131</height>
+    </rect>
+   </property>
+   <property name="title">
+    <string>Required Entries</string>
+   </property>
+   <widget class="QWidget" name="layoutWidget_3">
+    <property name="geometry">
+     <rect>
+      <x>10</x>
+      <y>30</y>
+      <width>381</width>
+      <height>28</height>
+     </rect>
+    </property>
+    <layout class="QHBoxLayout" name="horizontalLayout_5">
+     <item>
+      <widget class="QLabel" name="fMap_label">
+       <property name="text">
+        <string>Map</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QLineEdit" name="fMap_lineEdit">
+       <property name="text">
+        <string>0  0  0  0  0  0  0  0  0  0</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </widget>
+   <widget class="QWidget" name="layoutWidget_4">
+    <property name="geometry">
+     <rect>
+      <x>11</x>
+      <y>60</y>
+      <width>281</width>
+      <height>28</height>
+     </rect>
+    </property>
+    <layout class="QHBoxLayout" name="horizontalLayout_6">
+     <item>
+      <widget class="QLabel" name="fXYData_label">
+       <property name="text">
+        <string>xy-Data</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_6">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>37</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QLineEdit" name="fXData_lineEdit"/>
+     </item>
+     <item>
+      <widget class="QLineEdit" name="fYData_lineEdit"/>
+     </item>
+    </layout>
+   </widget>
+   <widget class="QWidget" name="layoutWidget_5">
+    <property name="geometry">
+     <rect>
+      <x>10</x>
+      <y>92</y>
+      <width>291</width>
+      <height>28</height>
+     </rect>
+    </property>
+    <layout class="QHBoxLayout" name="horizontalLayout_7">
+     <item>
+      <widget class="QLabel" name="fFitRange_label">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string>Fit Range</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QLineEdit" name="fFitRangeStart_lineEdit">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="minimumSize">
+        <size>
+         <width>105</width>
+         <height>0</height>
+        </size>
+       </property>
+       <property name="maximumSize">
+        <size>
+         <width>105</width>
+         <height>16777215</height>
+        </size>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QLineEdit" name="fFitRangeEnd_lineEdit">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="minimumSize">
+        <size>
+         <width>105</width>
+         <height>0</height>
+        </size>
+       </property>
+       <property name="maximumSize">
+        <size>
+         <width>105</width>
+         <height>16777215</height>
+        </size>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </widget>
+  </widget>
+  <widget class="QWidget" name="layoutWidget_6">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>270</y>
+     <width>401</width>
+     <height>27</height>
+    </rect>
+   </property>
+   <layout class="QHBoxLayout" name="horizontalLayout">
+    <item>
+     <widget class="QPushButton" name="fHelp_pushButton">
+      <property name="text">
+       <string>&amp;Help</string>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <spacer name="horizontalSpacer">
+      <property name="orientation">
+       <enum>Qt::Horizontal</enum>
+      </property>
+      <property name="sizeHint" stdset="0">
+       <size>
+        <width>40</width>
+        <height>20</height>
+       </size>
+      </property>
+     </spacer>
+    </item>
+    <item>
+     <widget class="QPushButton" name="fOk_pushButton">
+      <property name="text">
+       <string>&amp;OK</string>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <widget class="QPushButton" name="fCancel_pushButton">
+      <property name="text">
+       <string>&amp;Cancel</string>
+      </property>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <tabstops>
+  <tabstop>fRunFileName_lineEdit</tabstop>
+  <tabstop>fBeamline_lineEdit</tabstop>
+  <tabstop>fInstitute_comboBox</tabstop>
+  <tabstop>fFileFormat_comboBox</tabstop>
+  <tabstop>fMap_lineEdit</tabstop>
+  <tabstop>fXData_lineEdit</tabstop>
+  <tabstop>fYData_lineEdit</tabstop>
+  <tabstop>fFitRangeStart_lineEdit</tabstop>
+  <tabstop>fFitRangeEnd_lineEdit</tabstop>
+  <tabstop>fOk_pushButton</tabstop>
+  <tabstop>fCancel_pushButton</tabstop>
+  <tabstop>fHelp_pushButton</tabstop>
+ </tabstops>
+ <resources>
+  <include location="../musredit.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>fCancel_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetNonMusrRunBlockDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>337</x>
+     <y>281</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>364</x>
+     <y>216</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fOk_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetNonMusrRunBlockDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>289</x>
+     <y>277</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>238</x>
+     <y>220</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fHelp_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetNonMusrRunBlockDialog</receiver>
+   <slot>helpContent()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>37</x>
+     <y>286</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>78</x>
+     <y>229</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+ <slots>
+  <slot>helpContent()</slot>
+ </slots>
+</ui>
diff --git a/src/musredit_qt6/musredit/forms/PGetParameterBlockDialog.ui b/src/musredit_qt6/musredit/forms/PGetParameterBlockDialog.ui
new file mode 100644
index 00000000..399a7ff0
--- /dev/null
+++ b/src/musredit_qt6/musredit/forms/PGetParameterBlockDialog.ui
@@ -0,0 +1,347 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PGetParameterBlockDialog</class>
+ <widget class="QDialog" name="PGetParameterBlockDialog">
+  <property name="windowModality">
+   <enum>Qt::WindowModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>656</width>
+    <height>476</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Get Parameter</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../musredit.qrc">
+    <normaloff>:/images/musrfit.xpm</normaloff>:/images/musrfit.xpm</iconset>
+  </property>
+  <widget class="QWidget" name="layoutWidget">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>430</y>
+     <width>631</width>
+     <height>32</height>
+    </rect>
+   </property>
+   <layout class="QHBoxLayout" name="horizontalLayout">
+    <item>
+     <widget class="QPushButton" name="fHelp_pushButton">
+      <property name="text">
+       <string>&amp;Help</string>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <spacer name="horizontalSpacer">
+      <property name="orientation">
+       <enum>Qt::Horizontal</enum>
+      </property>
+      <property name="sizeHint" stdset="0">
+       <size>
+        <width>118</width>
+        <height>20</height>
+       </size>
+      </property>
+     </spacer>
+    </item>
+    <item>
+     <widget class="QPushButton" name="fOk_pushButton">
+      <property name="text">
+       <string>&amp;OK</string>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <widget class="QPushButton" name="fCancel_pushButton">
+      <property name="text">
+       <string>&amp;Cancel</string>
+      </property>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+  <widget class="QPlainTextEdit" name="fParam_plainTextEdit">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>90</y>
+     <width>631</width>
+     <height>331</height>
+    </rect>
+   </property>
+   <property name="plainText">
+    <string>###############################################################
+FITPARAMETER
+#      Nr. Name        Value     Step      Pos_Error  Boundaries</string>
+   </property>
+  </widget>
+  <widget class="QPushButton" name="fAdd_pushButton">
+   <property name="geometry">
+    <rect>
+     <x>560</x>
+     <y>50</y>
+     <width>75</width>
+     <height>23</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>&amp;Add</string>
+   </property>
+  </widget>
+  <widget class="QLabel" name="fParamNo_label">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>30</y>
+     <width>31</width>
+     <height>13</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>No.</string>
+   </property>
+  </widget>
+  <widget class="QLabel" name="fName_label">
+   <property name="geometry">
+    <rect>
+     <x>60</x>
+     <y>30</y>
+     <width>46</width>
+     <height>13</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>Name</string>
+   </property>
+  </widget>
+  <widget class="QLabel" name="fValue_label">
+   <property name="geometry">
+    <rect>
+     <x>180</x>
+     <y>30</y>
+     <width>46</width>
+     <height>13</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>Value</string>
+   </property>
+  </widget>
+  <widget class="QLabel" name="fStep_label">
+   <property name="geometry">
+    <rect>
+     <x>270</x>
+     <y>30</y>
+     <width>46</width>
+     <height>13</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>Step</string>
+   </property>
+  </widget>
+  <widget class="QGroupBox" name="fBoundaries_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>370</x>
+     <y>10</y>
+     <width>171</width>
+     <height>71</height>
+    </rect>
+   </property>
+   <property name="title">
+    <string>Boundaries</string>
+   </property>
+   <widget class="QLabel" name="fLower_label">
+    <property name="geometry">
+     <rect>
+      <x>10</x>
+      <y>20</y>
+      <width>46</width>
+      <height>13</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Lower</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fUpper_label">
+    <property name="geometry">
+     <rect>
+      <x>90</x>
+      <y>20</y>
+      <width>46</width>
+      <height>13</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Upper</string>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fLower_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>10</x>
+      <y>40</y>
+      <width>71</width>
+      <height>20</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>none</string>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fUpper_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>90</x>
+      <y>40</y>
+      <width>71</width>
+      <height>20</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>none</string>
+    </property>
+   </widget>
+  </widget>
+  <widget class="QSpinBox" name="fParamNo_spinBox">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>50</y>
+     <width>42</width>
+     <height>22</height>
+    </rect>
+   </property>
+   <property name="minimum">
+    <number>1</number>
+   </property>
+   <property name="maximum">
+    <number>999</number>
+   </property>
+  </widget>
+  <widget class="QLineEdit" name="fName_lineEdit">
+   <property name="geometry">
+    <rect>
+     <x>60</x>
+     <y>50</y>
+     <width>113</width>
+     <height>20</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QLineEdit" name="fValue_lineEdit">
+   <property name="geometry">
+    <rect>
+     <x>180</x>
+     <y>50</y>
+     <width>81</width>
+     <height>20</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QLineEdit" name="fStep_lineEdit">
+   <property name="geometry">
+    <rect>
+     <x>270</x>
+     <y>50</y>
+     <width>81</width>
+     <height>20</height>
+    </rect>
+   </property>
+  </widget>
+ </widget>
+ <tabstops>
+  <tabstop>fParamNo_spinBox</tabstop>
+  <tabstop>fName_lineEdit</tabstop>
+  <tabstop>fValue_lineEdit</tabstop>
+  <tabstop>fStep_lineEdit</tabstop>
+  <tabstop>fLower_lineEdit</tabstop>
+  <tabstop>fUpper_lineEdit</tabstop>
+  <tabstop>fAdd_pushButton</tabstop>
+  <tabstop>fOk_pushButton</tabstop>
+  <tabstop>fCancel_pushButton</tabstop>
+  <tabstop>fParam_plainTextEdit</tabstop>
+  <tabstop>fHelp_pushButton</tabstop>
+ </tabstops>
+ <resources>
+  <include location="../musredit.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>fCancel_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetParameterBlockDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>639</x>
+     <y>434</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>338</x>
+     <y>429</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fOk_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetParameterBlockDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>548</x>
+     <y>436</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>448</x>
+     <y>438</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fAdd_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetParameterBlockDialog</receiver>
+   <slot>paramAdd()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>594</x>
+     <y>59</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>562</x>
+     <y>16</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fHelp_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetParameterBlockDialog</receiver>
+   <slot>helpContent()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>62</x>
+     <y>447</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>148</x>
+     <y>443</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+ <slots>
+  <slot>helpContent()</slot>
+  <slot>paramAdd()</slot>
+ </slots>
+</ui>
diff --git a/src/musredit_qt6/musredit/forms/PGetPlotBlockDialog.ui b/src/musredit_qt6/musredit/forms/PGetPlotBlockDialog.ui
new file mode 100644
index 00000000..575b3f35
--- /dev/null
+++ b/src/musredit_qt6/musredit/forms/PGetPlotBlockDialog.ui
@@ -0,0 +1,269 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PGetPlotBlockDialog</class>
+ <widget class="QDialog" name="PGetPlotBlockDialog">
+  <property name="windowModality">
+   <enum>Qt::WindowModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>719</width>
+    <height>312</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Get Plot</string>
+  </property>
+  <property name="windowIcon">
+   <iconset>
+    <normaloff>:/musredit/musrfit.xpm</normaloff>:/musredit/musrfit.xpm</iconset>
+  </property>
+  <widget class="QWidget" name="">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>10</y>
+     <width>702</width>
+     <height>292</height>
+    </rect>
+   </property>
+   <layout class="QVBoxLayout" name="verticalLayout">
+    <item>
+     <layout class="QHBoxLayout" name="horizontalLayout_2">
+      <item>
+       <layout class="QGridLayout" name="gridLayout_2">
+        <item row="0" column="0">
+         <widget class="QLabel" name="fType_label">
+          <property name="font">
+           <font>
+            <pointsize>9</pointsize>
+            <weight>75</weight>
+            <bold>true</bold>
+           </font>
+          </property>
+          <property name="text">
+           <string>Type</string>
+          </property>
+         </widget>
+        </item>
+        <item row="0" column="1">
+         <widget class="QComboBox" name="fType_comboBox">
+          <item>
+           <property name="text">
+            <string>Single Histo</string>
+           </property>
+          </item>
+          <item>
+           <property name="text">
+            <string>Asymmetry</string>
+           </property>
+          </item>
+          <item>
+           <property name="text">
+            <string>MuMinus</string>
+           </property>
+          </item>
+          <item>
+           <property name="text">
+            <string>NonMusr</string>
+           </property>
+          </item>
+         </widget>
+        </item>
+        <item row="1" column="0">
+         <widget class="QLabel" name="fRunList_label">
+          <property name="font">
+           <font>
+            <pointsize>9</pointsize>
+            <weight>75</weight>
+            <bold>true</bold>
+           </font>
+          </property>
+          <property name="text">
+           <string>Run List</string>
+          </property>
+         </widget>
+        </item>
+        <item row="1" column="1">
+         <widget class="QLineEdit" name="fRunList_lineEdit"/>
+        </item>
+       </layout>
+      </item>
+      <item>
+       <layout class="QGridLayout" name="gridLayout">
+        <item row="0" column="0">
+         <widget class="QLabel" name="fXRange_label">
+          <property name="font">
+           <font>
+            <pointsize>9</pointsize>
+            <weight>75</weight>
+            <bold>true</bold>
+           </font>
+          </property>
+          <property name="text">
+           <string>Time-/x-Range</string>
+          </property>
+         </widget>
+        </item>
+        <item row="0" column="1">
+         <widget class="QLineEdit" name="fXRangeLow_lineEdit"/>
+        </item>
+        <item row="0" column="2">
+         <widget class="QLineEdit" name="fXRangeUp_lineEdit"/>
+        </item>
+        <item row="1" column="0">
+         <widget class="QLabel" name="fYRange_label">
+          <property name="font">
+           <font>
+            <pointsize>9</pointsize>
+            <weight>75</weight>
+            <bold>true</bold>
+           </font>
+          </property>
+          <property name="text">
+           <string>y-Range</string>
+          </property>
+         </widget>
+        </item>
+        <item row="1" column="1">
+         <widget class="QLineEdit" name="fYRangeLow_lineEdit"/>
+        </item>
+        <item row="1" column="2">
+         <widget class="QLineEdit" name="fYRangeUp_lineEdit"/>
+        </item>
+       </layout>
+      </item>
+      <item>
+       <widget class="QPushButton" name="fAdd_pushButton">
+        <property name="text">
+         <string>&amp;Add</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </item>
+    <item>
+     <widget class="QPlainTextEdit" name="fPlot_plainTextEdit"/>
+    </item>
+    <item>
+     <layout class="QHBoxLayout" name="horizontalLayout">
+      <item>
+       <widget class="QPushButton" name="fHelp_pushButton">
+        <property name="text">
+         <string>&amp;Help</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <spacer name="horizontalSpacer">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>118</width>
+          <height>20</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+      <item>
+       <widget class="QPushButton" name="fOk_pushButton">
+        <property name="text">
+         <string>&amp;OK</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QPushButton" name="fCancel_pushButton">
+        <property name="text">
+         <string>&amp;Cancel</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <tabstops>
+  <tabstop>fOk_pushButton</tabstop>
+  <tabstop>fCancel_pushButton</tabstop>
+  <tabstop>fHelp_pushButton</tabstop>
+ </tabstops>
+ <resources>
+  <include location="../musredit.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>fCancel_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetPlotBlockDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>579</x>
+     <y>311</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>355</x>
+     <y>225</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fOk_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetPlotBlockDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>488</x>
+     <y>311</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>243</x>
+     <y>227</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fHelp_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetPlotBlockDialog</receiver>
+   <slot>helpContent()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>51</x>
+     <y>311</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>115</x>
+     <y>221</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fAdd_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetPlotBlockDialog</receiver>
+   <slot>addPlot()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>536</x>
+     <y>36</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>291</x>
+     <y>316</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+ <slots>
+  <slot>helpContent()</slot>
+  <slot>addPlot()</slot>
+ </slots>
+</ui>
diff --git a/src/musredit_qt6/musredit/forms/PGetSingleHistoRunBlockDialog.ui b/src/musredit_qt6/musredit/forms/PGetSingleHistoRunBlockDialog.ui
new file mode 100644
index 00000000..7d823aa3
--- /dev/null
+++ b/src/musredit_qt6/musredit/forms/PGetSingleHistoRunBlockDialog.ui
@@ -0,0 +1,654 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PGetSingleHistoRunBlockDialog</class>
+ <widget class="QDialog" name="PGetSingleHistoRunBlockDialog">
+  <property name="windowModality">
+   <enum>Qt::WindowModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>440</width>
+    <height>592</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Get Single Histogram Run Block Parameters</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../musredit.qrc">
+    <normaloff>:/images/musrfit.xpm</normaloff>:/images/musrfit.xpm</iconset>
+  </property>
+  <widget class="QGroupBox" name="fRunHeaderInfo_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>0</y>
+     <width>421</width>
+     <height>121</height>
+    </rect>
+   </property>
+   <property name="title">
+    <string>Run Header Info</string>
+   </property>
+   <widget class="QLabel" name="fRunFileName_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>30</y>
+      <width>91</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Run File Name</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fBeamline_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>60</y>
+      <width>71</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Beamline</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fInstitute_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>90</y>
+      <width>56</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Institute</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fFileFormat_label">
+    <property name="geometry">
+     <rect>
+      <x>240</x>
+      <y>90</y>
+      <width>91</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>File Format</string>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fRunFileName_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>120</x>
+      <y>26</y>
+      <width>291</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fBeamline_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>120</x>
+      <y>56</y>
+      <width>113</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QComboBox" name="fInstitute_comboBox">
+    <property name="geometry">
+     <rect>
+      <x>120</x>
+      <y>86</y>
+      <width>77</width>
+      <height>25</height>
+     </rect>
+    </property>
+    <item>
+     <property name="text">
+      <string>PSI</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>RAL</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>TRIUMF</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>JPARC</string>
+     </property>
+    </item>
+   </widget>
+   <widget class="QComboBox" name="fFileFormat_comboBox">
+    <property name="geometry">
+     <rect>
+      <x>316</x>
+      <y>86</y>
+      <width>91</width>
+      <height>25</height>
+     </rect>
+    </property>
+    <item>
+     <property name="text">
+      <string>NeXuS</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>ROOT-NPP</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>ROOT-PPC</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>PSI-BIN</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>PSI-MDU</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>MUD</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>MDU-ASCII</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>ASCII</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>DB</string>
+     </property>
+    </item>
+   </widget>
+  </widget>
+  <widget class="QGroupBox" name="fRequiredEntries_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>120</y>
+     <width>421</width>
+     <height>301</height>
+    </rect>
+   </property>
+   <property name="title">
+    <string>Required Entries</string>
+   </property>
+   <widget class="QLabel" name="fMap_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>30</y>
+      <width>56</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Map</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fForwardHistoNo_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>60</y>
+      <width>111</width>
+      <height>20</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Forward Histo No</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fDataRange_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>120</y>
+      <width>81</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Data  Range</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fBackgroundFix_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>150</y>
+      <width>111</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Background Fix</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fOr_label">
+    <property name="geometry">
+     <rect>
+      <x>240</x>
+      <y>150</y>
+      <width>31</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="font">
+     <font>
+      <weight>75</weight>
+      <bold>true</bold>
+     </font>
+    </property>
+    <property name="text">
+     <string>OR</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fBackgroundRange_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>210</y>
+      <width>121</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Background Range</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fFitRange_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>240</y>
+      <width>71</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Fit Range</string>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fMap_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>60</x>
+      <y>26</y>
+      <width>351</width>
+      <height>26</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>0  0  0  0  0  0  0  0  0</string>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fForwardHistoNo_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>150</x>
+      <y>56</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fDataStart_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>150</x>
+      <y>116</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fDataEnd_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>220</x>
+      <y>116</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fBackgroundFix_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>150</x>
+      <y>146</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fBackgroundStart_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>150</x>
+      <y>206</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fBackgroundEnd_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>220</x>
+      <y>206</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fFitRangeStart_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>150</x>
+      <y>236</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fFitRangeEnd_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>220</x>
+      <y>236</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fPacking_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>150</x>
+      <y>266</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>1</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fPacking_textLabel">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>270</y>
+      <width>111</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Packing/Binning</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fNorm_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>90</y>
+      <width>56</width>
+      <height>20</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Norm</string>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fNorm_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>150</x>
+      <y>86</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fBackgroundFit_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>180</y>
+      <width>101</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Background Fit</string>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fBackgroundFit_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>150</x>
+      <y>176</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+  </widget>
+  <widget class="QGroupBox" name="fOptionalEntries_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>420</y>
+     <width>421</width>
+     <height>121</height>
+    </rect>
+   </property>
+   <property name="title">
+    <string>Optional Entries</string>
+   </property>
+   <widget class="QLabel" name="fT0_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>30</y>
+      <width>241</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>t0 (reqired if not given in the data file)</string>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fT0_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>260</x>
+      <y>26</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLabel" name="fMuonLifetimeParameter_label">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>60</y>
+      <width>211</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Muon Lifetime Parameter</string>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fLifetime_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>180</x>
+      <y>56</y>
+      <width>71</width>
+      <height>26</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QCheckBox" name="fLifetimeCorrection_checkBox">
+    <property name="geometry">
+     <rect>
+      <x>18</x>
+      <y>90</y>
+      <width>151</width>
+      <height>23</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Lifetime Correction</string>
+    </property>
+   </widget>
+  </widget>
+  <widget class="QWidget" name="layoutWidget">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>545</y>
+     <width>421</width>
+     <height>39</height>
+    </rect>
+   </property>
+   <layout class="QVBoxLayout" name="verticalLayout">
+    <item>
+     <widget class="Line" name="line">
+      <property name="orientation">
+       <enum>Qt::Horizontal</enum>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <layout class="QHBoxLayout" name="horizontalLayout">
+      <item>
+       <widget class="QPushButton" name="fHelp_pushButton">
+        <property name="text">
+         <string>&amp;Help</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <spacer name="horizontalSpacer">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>188</width>
+          <height>20</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+      <item>
+       <widget class="QPushButton" name="fOk_pushButton">
+        <property name="text">
+         <string>&amp;OK</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QPushButton" name="fCancel_pushButton">
+        <property name="text">
+         <string>&amp;Cancel</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <resources>
+  <include location="../musredit.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>fCancel_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetSingleHistoRunBlockDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>458</x>
+     <y>434</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>471</x>
+     <y>415</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fOk_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetSingleHistoRunBlockDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>394</x>
+     <y>438</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>407</x>
+     <y>406</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fHelp_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetSingleHistoRunBlockDialog</receiver>
+   <slot>helpContent()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>47</x>
+     <y>437</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>70</x>
+     <y>398</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+ <slots>
+  <slot>helpContent()</slot>
+ </slots>
+</ui>
diff --git a/src/musredit_qt6/musredit/forms/PGetTheoryBlockDialog.ui b/src/musredit_qt6/musredit/forms/PGetTheoryBlockDialog.ui
new file mode 100644
index 00000000..5dce995a
--- /dev/null
+++ b/src/musredit_qt6/musredit/forms/PGetTheoryBlockDialog.ui
@@ -0,0 +1,264 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PGetTheoryBlockDialog</class>
+ <widget class="QDialog" name="PGetTheoryBlockDialog">
+  <property name="windowModality">
+   <enum>Qt::WindowModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>698</width>
+    <height>546</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Get Theory</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../musredit.qrc">
+    <normaloff>:/images/musrfit.xpm</normaloff>:/images/musrfit.xpm</iconset>
+  </property>
+  <widget class="QTextEdit" name="fDescription_textEdit">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>10</y>
+     <width>681</width>
+     <height>211</height>
+    </rect>
+   </property>
+   <property name="readOnly">
+    <bool>true</bool>
+   </property>
+   <property name="html">
+    <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
+p, li { white-space: pre-wrap; }
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Sans Serif'; font-size:9pt; font-weight:400; font-style:normal;&quot;&gt;
+&lt;table border=&quot;0&quot; style=&quot;-qt-table-type: root; margin-top:4px; margin-bottom:4px; margin-left:4px; margin-right:4px;&quot;&gt;
+&lt;tr&gt;
+&lt;td style=&quot;border: none;&quot;&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;Every theory function has to be written on a single line. It starts with the theory function name or its abbreviation followed by the parameters. Consecutive lines of theory functions will be multiplied. If theory functions need to be added, a line with a '+' has to separate them. The parameters are given as the numbers assigned to them in the FITPARAMETER-block.&lt;/p&gt;
+&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;Example:&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;asymmetry 2&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;simplExpo 3&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;TFieldCos map1 fun2&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;+&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;asymmetry 6&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;simplExpo 7&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/body&gt;&lt;/html&gt;</string>
+   </property>
+  </widget>
+  <widget class="QGroupBox" name="fTheoryInput_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>220</y>
+     <width>681</width>
+     <height>71</height>
+    </rect>
+   </property>
+   <property name="title">
+    <string>Theory Input Line</string>
+   </property>
+   <widget class="QComboBox" name="fTheoryFunction_comboBox">
+    <property name="geometry">
+     <rect>
+      <x>10</x>
+      <y>20</y>
+      <width>541</width>
+      <height>41</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QPushButton" name="fPlus_pushButton">
+    <property name="geometry">
+     <rect>
+      <x>560</x>
+      <y>30</y>
+      <width>51</width>
+      <height>25</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>+</string>
+    </property>
+   </widget>
+   <widget class="QPushButton" name="fMultiply_pushButton">
+    <property name="geometry">
+     <rect>
+      <x>620</x>
+      <y>30</y>
+      <width>51</width>
+      <height>25</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>*</string>
+    </property>
+   </widget>
+  </widget>
+  <widget class="QPlainTextEdit" name="fTheoryBlock_plainTextEdit">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>300</y>
+     <width>681</width>
+     <height>201</height>
+    </rect>
+   </property>
+   <property name="plainText">
+    <string>#####################################################
+THEORY</string>
+   </property>
+  </widget>
+  <widget class="QWidget" name="layoutWidget">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>510</y>
+     <width>681</width>
+     <height>29</height>
+    </rect>
+   </property>
+   <layout class="QHBoxLayout" name="horizontalLayout">
+    <item>
+     <widget class="QPushButton" name="fHelp_pushButton">
+      <property name="text">
+       <string>&amp;Help</string>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <spacer name="horizontalSpacer">
+      <property name="orientation">
+       <enum>Qt::Horizontal</enum>
+      </property>
+      <property name="sizeHint" stdset="0">
+       <size>
+        <width>178</width>
+        <height>20</height>
+       </size>
+      </property>
+     </spacer>
+    </item>
+    <item>
+     <widget class="QPushButton" name="fOk_pushButton">
+      <property name="text">
+       <string>&amp;OK</string>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <widget class="QPushButton" name="fCancel_pushButton">
+      <property name="text">
+       <string>&amp;Cancel</string>
+      </property>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <tabstops>
+  <tabstop>fTheoryFunction_comboBox</tabstop>
+  <tabstop>fPlus_pushButton</tabstop>
+  <tabstop>fMultiply_pushButton</tabstop>
+  <tabstop>fTheoryBlock_plainTextEdit</tabstop>
+  <tabstop>fOk_pushButton</tabstop>
+  <tabstop>fCancel_pushButton</tabstop>
+  <tabstop>fHelp_pushButton</tabstop>
+  <tabstop>fDescription_textEdit</tabstop>
+ </tabstops>
+ <resources>
+  <include location="../musredit.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>fCancel_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetTheoryBlockDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>539</x>
+     <y>502</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>492</x>
+     <y>411</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fOk_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetTheoryBlockDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>458</x>
+     <y>502</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>380</x>
+     <y>472</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fHelp_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetTheoryBlockDialog</receiver>
+   <slot>helpContent()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>45</x>
+     <y>502</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>90</x>
+     <y>440</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fPlus_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetTheoryBlockDialog</receiver>
+   <slot>addPlus()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>434</x>
+     <y>257</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>173</x>
+     <y>500</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fMultiply_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetTheoryBlockDialog</receiver>
+   <slot>addMultiply()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>500</x>
+     <y>263</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>256</x>
+     <y>504</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+ <slots>
+  <slot>helpContent()</slot>
+  <slot>addPlus()</slot>
+  <slot>addMultiply()</slot>
+ </slots>
+</ui>
diff --git a/src/musredit_qt6/musredit/forms/PGetTitleBlockDialog.ui b/src/musredit_qt6/musredit/forms/PGetTitleBlockDialog.ui
new file mode 100644
index 00000000..64d0086f
--- /dev/null
+++ b/src/musredit_qt6/musredit/forms/PGetTitleBlockDialog.ui
@@ -0,0 +1,166 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PGetTitleBlockDialog</class>
+ <widget class="QDialog" name="PGetTitleBlockDialog">
+  <property name="windowModality">
+   <enum>Qt::WindowModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>556</width>
+    <height>90</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Get Title</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../musredit.qrc">
+    <normaloff>:/images/musrfit.xpm</normaloff>:/images/musrfit.xpm</iconset>
+  </property>
+  <widget class="QLabel" name="fTitle_label">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>10</y>
+     <width>31</width>
+     <height>16</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>Title</string>
+   </property>
+  </widget>
+  <widget class="QLineEdit" name="fTitle_lineEdit">
+   <property name="geometry">
+    <rect>
+     <x>50</x>
+     <y>6</y>
+     <width>501</width>
+     <height>26</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QWidget" name="layoutWidget">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>40</y>
+     <width>541</width>
+     <height>47</height>
+    </rect>
+   </property>
+   <layout class="QVBoxLayout" name="verticalLayout">
+    <item>
+     <widget class="Line" name="line">
+      <property name="orientation">
+       <enum>Qt::Horizontal</enum>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <layout class="QHBoxLayout" name="horizontalLayout">
+      <item>
+       <widget class="QPushButton" name="fHelp_pushButton">
+        <property name="text">
+         <string>&amp;Help</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <spacer name="horizontalSpacer">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>138</width>
+          <height>20</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+      <item>
+       <widget class="QPushButton" name="fOk_pushButton">
+        <property name="text">
+         <string>&amp;OK</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QPushButton" name="fCancel_pushButton">
+        <property name="text">
+         <string>&amp;Cancel</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <tabstops>
+  <tabstop>fTitle_lineEdit</tabstop>
+  <tabstop>fOk_pushButton</tabstop>
+  <tabstop>fCancel_pushButton</tabstop>
+  <tabstop>fHelp_pushButton</tabstop>
+ </tabstops>
+ <resources>
+  <include location="../musredit.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>fOk_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetTitleBlockDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>467</x>
+     <y>78</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>221</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fCancel_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetTitleBlockDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>548</x>
+     <y>78</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>350</x>
+     <y>219</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fHelp_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PGetTitleBlockDialog</receiver>
+   <slot>helpContent()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>59</x>
+     <y>64</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>149</x>
+     <y>49</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+ <slots>
+  <slot>helpContent()</slot>
+ </slots>
+</ui>
diff --git a/src/musredit_qt6/musredit/forms/PMsr2DataDialog.ui b/src/musredit_qt6/musredit/forms/PMsr2DataDialog.ui
new file mode 100644
index 00000000..32178f4f
--- /dev/null
+++ b/src/musredit_qt6/musredit/forms/PMsr2DataDialog.ui
@@ -0,0 +1,742 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PMsr2DataDialog</class>
+ <widget class="QDialog" name="PMsr2DataDialog">
+  <property name="windowModality">
+   <enum>Qt::WindowModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>585</width>
+    <height>594</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>msr2data input</string>
+  </property>
+  <property name="windowIcon">
+   <iconset>
+    <normaloff>:/images/musrmsr2data.xpm</normaloff>:/images/musrmsr2data.xpm</iconset>
+  </property>
+  <widget class="QGroupBox" name="fRunListInput_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>581</width>
+     <height>111</height>
+    </rect>
+   </property>
+   <property name="font">
+    <font>
+     <weight>50</weight>
+     <bold>false</bold>
+    </font>
+   </property>
+   <property name="title">
+    <string>Run List Input</string>
+   </property>
+   <property name="flat">
+    <bool>false</bool>
+   </property>
+   <property name="checkable">
+    <bool>false</bool>
+   </property>
+   <widget class="QWidget" name="layoutWidget_0">
+    <property name="geometry">
+     <rect>
+      <x>10</x>
+      <y>30</y>
+      <width>561</width>
+      <height>70</height>
+     </rect>
+    </property>
+    <layout class="QVBoxLayout" name="verticalLayout_2">
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_3">
+       <item>
+        <widget class="QLabel" name="fRunList_label">
+         <property name="text">
+          <string>Run List</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QLineEdit" name="fRunList_lineEdit">
+         <property name="whatsThis">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;The run list consists of a collection of run number. Accepted input formats are:&lt;/p&gt;&lt;p&gt;(i) &amp;lt;run0&amp;gt; &amp;lt;run1&amp;gt; ... &amp;lt;runN&amp;gt;, e.g. 124 126 129&lt;/p&gt;&lt;p&gt;(ii) &amp;lt;run0&amp;gt;-&amp;lt;runN&amp;gt;, e.g. 124-126, i.e. 124 125 126&lt;/p&gt;&lt;p&gt;(iii) &amp;lt;run0&amp;gt;:&amp;lt;runN&amp;gt;:&amp;lt;step&amp;gt;, e.g 124:128:2, i.e. 124 126 128&lt;/p&gt;&lt;p&gt;or combination of those three.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <spacer name="horizontalSpacer_4">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+         <property name="sizeType">
+          <enum>QSizePolicy::Minimum</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>28</width>
+           <height>20</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+       <item>
+        <widget class="QLabel" name="fOrRunList_label">
+         <property name="text">
+          <string>&lt;b&gt;OR&lt;/b&gt;</string>
+         </property>
+         <property name="textFormat">
+          <enum>Qt::AutoText</enum>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_4">
+       <item>
+        <widget class="QLabel" name="fRunListFileName_label">
+         <property name="text">
+          <string>Run List File Name</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QLineEdit" name="fRunListFileName_lineEdit">
+         <property name="whatsThis">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;an ASCII file containing a list of run numbers and optional external parameters is passed to msr2data. &lt;/p&gt;&lt;p&gt;For details see the online documentation.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <spacer name="horizontalSpacer_5">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+         <property name="sizeType">
+          <enum>QSizePolicy::Fixed</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>52</width>
+           <height>20</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+      </layout>
+     </item>
+    </layout>
+   </widget>
+  </widget>
+  <widget class="QGroupBox" name="fMsrFileExtension_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>110</y>
+     <width>581</width>
+     <height>71</height>
+    </rect>
+   </property>
+   <property name="title">
+    <string>msr File Extension</string>
+   </property>
+   <widget class="QWidget" name="layoutWidget_1">
+    <property name="geometry">
+     <rect>
+      <x>10</x>
+      <y>30</y>
+      <width>561</width>
+      <height>31</height>
+     </rect>
+    </property>
+    <layout class="QHBoxLayout" name="horizontalLayout_5">
+     <item>
+      <widget class="QLabel" name="fExtension_label">
+       <property name="text">
+        <string>Extension</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_6">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeType">
+        <enum>QSizePolicy::Fixed</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>30</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QLineEdit" name="fMsrFileExtension_lineEdit">
+       <property name="whatsThis">
+        <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;the extension will be used together with the run number to generate the msr-file name. For example: the run number being 123 and the extension _tf_h13, an msr-file name 123_tf_h13.msr will result.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_7">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+    </layout>
+   </widget>
+  </widget>
+  <widget class="QGroupBox" name="fTemplateRunInput_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>180</y>
+     <width>581</width>
+     <height>80</height>
+    </rect>
+   </property>
+   <property name="title">
+    <string>Template Run Input</string>
+   </property>
+   <widget class="QWidget" name="layoutWidget_2">
+    <property name="geometry">
+     <rect>
+      <x>10</x>
+      <y>30</y>
+      <width>561</width>
+      <height>31</height>
+     </rect>
+    </property>
+    <layout class="QHBoxLayout" name="horizontalLayout_6">
+     <item>
+      <widget class="QLabel" name="fTemplateRunNumber_label">
+       <property name="text">
+        <string>Template Run Number</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QLineEdit" name="fTemplateRunNumber_lineEdit">
+       <property name="whatsThis">
+        <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;the run number given here will be used as a msr-file template number to generate/fit the run's given in the 'Run List Input'.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QCheckBox" name="fChainFit_checkBox">
+       <property name="whatsThis">
+        <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;unselected means: all msr-files generated and fitted will start from the given template.&lt;/p&gt;&lt;p&gt;selected means: the msr-files generated and fitted will use the previously fitted msr-file as an input. This makes sense if the run list given has continously changing parameters, e.g. as function of the temperature.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+       </property>
+       <property name="text">
+        <string>Chain Fit</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_8">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+    </layout>
+   </widget>
+  </widget>
+  <widget class="QGroupBox" name="fDataOutputFileName_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>260</y>
+     <width>581</width>
+     <height>80</height>
+    </rect>
+   </property>
+   <property name="title">
+    <string>Parameter Output File Name</string>
+   </property>
+   <widget class="QWidget" name="layoutWidget_3">
+    <property name="geometry">
+     <rect>
+      <x>10</x>
+      <y>30</y>
+      <width>561</width>
+      <height>31</height>
+     </rect>
+    </property>
+    <layout class="QHBoxLayout" name="horizontalLayout_7">
+     <item>
+      <widget class="QLabel" name="fDataOutputFileName_label">
+       <property name="text">
+        <string>Parameters Output File Name</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QLineEdit" name="fDataOutputFileName_lineEdit">
+       <property name="whatsThis">
+        <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;db- or dat-output file name for the parameter files.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_9">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeType">
+        <enum>QSizePolicy::Preferred</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+    </layout>
+   </widget>
+  </widget>
+  <widget class="QGroupBox" name="fOptions_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>340</y>
+     <width>581</width>
+     <height>191</height>
+    </rect>
+   </property>
+   <property name="title">
+    <string>Options</string>
+   </property>
+   <widget class="QWidget" name="layoutWidget_4">
+    <property name="geometry">
+     <rect>
+      <x>6</x>
+      <y>20</y>
+      <width>560</width>
+      <height>131</height>
+     </rect>
+    </property>
+    <layout class="QHBoxLayout" name="horizontalLayout_9">
+     <item>
+      <layout class="QVBoxLayout" name="verticalLayout_3">
+       <item>
+        <widget class="QCheckBox" name="fWriteDataHeader_checkBox">
+         <property name="whatsThis">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;For db-files, a Data Header will be written.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="text">
+          <string>Write Data Header</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="fIgnoreDataHeaderInfo_checkBox">
+         <property name="whatsThis">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;This tag is used in conjunction with LEM. If &lt;span style=&quot; font-weight:600;&quot;&gt;not&lt;/span&gt; selected, it will try to extract experiment specific parameters from the data file like implantation energy, transport HV settings, etc.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="text">
+          <string>Ignore Data Header Info</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="fKeepMinuit2Output_checkBox">
+         <property name="whatsThis">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;selected: for each run fitted, two additional files will be written, namely a &amp;lt;msr-filename&amp;gt;-mn2.output and &amp;lt;msr-filename&amp;gt;-mn2.root, which contain a richer set of information about fit, i.e. the covariance matrix, the correlation coefficients, etc.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="text">
+          <string>Keep Minuit2 Output</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="fEstimateN0_checkBox">
+         <property name="text">
+          <string>Estimate N0</string>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QVBoxLayout" name="verticalLayout_4">
+       <item>
+        <widget class="QCheckBox" name="fWriteColumnData_checkBox">
+         <property name="whatsThis">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;unselected: the output parameter file is written in so called db-format.&lt;/p&gt;&lt;p&gt;selected: the output parameter file is written in column like ascii-format.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="text">
+          <string>Write Column Data</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="fRecreateDataFile_checkBox">
+         <property name="whatsThis">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;unselected: if the parameter output file already exists, the parameters will be appended.&lt;/p&gt;&lt;p&gt;selected: if the parameter output file already exists: it will be deleted and a new one will be written.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="text">
+          <string>Recreate Data File</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="fOpenFilesAfterFitting_checkBox">
+         <property name="whatsThis">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;selected: the newly generated msr-files will be opened in musredit after the fit took place.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="text">
+          <string>Open Files after Fitting</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="fWritePerRunBlockChisq_checkBox">
+         <property name="text">
+          <string>Write per-run-block Chisq</string>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QVBoxLayout" name="verticalLayout_5">
+       <item>
+        <widget class="QCheckBox" name="fTitleFromData_checkBox">
+         <property name="whatsThis">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;if selected: the run title of the generated msr-file will be the one given in the muSR data file.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="text">
+          <string>Take Data File Title</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="fCreateMsrFileOnly_checkBox">
+         <property name="whatsThis">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;if selected: the msr-files will be created, but &lt;span style=&quot; font-weight:600;&quot;&gt;no &lt;/span&gt;fitting will take place.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="text">
+          <string>Create msr-File only</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="fFitOnly_checkBox">
+         <property name="whatsThis">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;selected: it is assumed that the msr-files already exist, and only musrfit is called.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="text">
+          <string>Fit Only</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_8">
+         <item>
+          <widget class="QCheckBox" name="fGlobal_checkBox">
+           <property name="whatsThis">
+            <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;selected: will generate a msr-file for a global fit. Please check the online documentation for further details.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+           </property>
+           <property name="text">
+            <string>Global</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QCheckBox" name="fGlobalPlus_checkBox">
+           <property name="whatsThis">
+            <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;selected: will generate a msr-file for a global fit. The difference between Global and Global+ is that for Global+ the input parameters of the msr-file are originating from the single run fits. Please check the online documentation for further details.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+           </property>
+           <property name="text">
+            <string>Global+</string>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </item>
+      </layout>
+     </item>
+    </layout>
+   </widget>
+   <widget class="QLabel" name="fParamList_label">
+    <property name="geometry">
+     <rect>
+      <x>9</x>
+      <y>160</y>
+      <width>141</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="whatsThis">
+     <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;parameter numbers to be exported, e.g. 1-16, or 1 3-7, etc.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+    </property>
+    <property name="text">
+     <string>Parameter Export List</string>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="fParamList_lineEdit">
+    <property name="geometry">
+     <rect>
+      <x>164</x>
+      <y>157</y>
+      <width>401</width>
+      <height>23</height>
+     </rect>
+    </property>
+    <property name="whatsThis">
+     <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;parameter numbers to be exported, e.g. 1-16, or 1 3-7, etc.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+    </property>
+   </widget>
+  </widget>
+  <widget class="QWidget" name="layoutWidget_5">
+   <property name="geometry">
+    <rect>
+     <x>5</x>
+     <y>540</y>
+     <width>571</width>
+     <height>51</height>
+    </rect>
+   </property>
+   <layout class="QVBoxLayout" name="verticalLayout">
+    <item>
+     <widget class="Line" name="line">
+      <property name="orientation">
+       <enum>Qt::Horizontal</enum>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <layout class="QHBoxLayout" name="horizontalLayout">
+      <item>
+       <widget class="QPushButton" name="fHelp_pushButton">
+        <property name="text">
+         <string>&amp;Help</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <spacer name="horizontalSpacer">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>178</width>
+          <height>20</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+      <item>
+       <widget class="QPushButton" name="fOk_pushButton">
+        <property name="text">
+         <string>&amp;OK</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QPushButton" name="fCancel_pushButton">
+        <property name="text">
+         <string>&amp;Cancel</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <tabstops>
+  <tabstop>fRunList_lineEdit</tabstop>
+  <tabstop>fRunListFileName_lineEdit</tabstop>
+  <tabstop>fMsrFileExtension_lineEdit</tabstop>
+  <tabstop>fTemplateRunNumber_lineEdit</tabstop>
+  <tabstop>fChainFit_checkBox</tabstop>
+  <tabstop>fDataOutputFileName_lineEdit</tabstop>
+  <tabstop>fWriteDataHeader_checkBox</tabstop>
+  <tabstop>fIgnoreDataHeaderInfo_checkBox</tabstop>
+  <tabstop>fKeepMinuit2Output_checkBox</tabstop>
+  <tabstop>fWriteColumnData_checkBox</tabstop>
+  <tabstop>fRecreateDataFile_checkBox</tabstop>
+  <tabstop>fOpenFilesAfterFitting_checkBox</tabstop>
+  <tabstop>fTitleFromData_checkBox</tabstop>
+  <tabstop>fCreateMsrFileOnly_checkBox</tabstop>
+  <tabstop>fFitOnly_checkBox</tabstop>
+  <tabstop>fGlobal_checkBox</tabstop>
+  <tabstop>fGlobalPlus_checkBox</tabstop>
+  <tabstop>fParamList_lineEdit</tabstop>
+  <tabstop>fCancel_pushButton</tabstop>
+  <tabstop>fHelp_pushButton</tabstop>
+  <tabstop>fOk_pushButton</tabstop>
+ </tabstops>
+ <resources>
+  <include location="../musredit.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>fCancel_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PMsr2DataDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>538</x>
+     <y>534</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>508</x>
+     <y>358</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fOk_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PMsr2DataDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>456</x>
+     <y>541</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>380</x>
+     <y>364</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fHelp_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PMsr2DataDialog</receiver>
+   <slot>helpContent()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>59</x>
+     <y>534</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>96</x>
+     <y>370</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fRunList_lineEdit</sender>
+   <signal>textChanged(QString)</signal>
+   <receiver>PMsr2DataDialog</receiver>
+   <slot>runListEntered(QString)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>151</x>
+     <y>77</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>183</x>
+     <y>515</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fRunListFileName_lineEdit</sender>
+   <signal>textChanged(QString)</signal>
+   <receiver>PMsr2DataDialog</receiver>
+   <slot>runListFileNameEntered(QString)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>295</x>
+     <y>115</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>332</x>
+     <y>492</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fTemplateRunNumber_lineEdit</sender>
+   <signal>textChanged(QString)</signal>
+   <receiver>PMsr2DataDialog</receiver>
+   <slot>templateRunEntered(QString)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>190</x>
+     <y>245</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>137</x>
+     <y>516</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fFitOnly_checkBox</sender>
+   <signal>stateChanged(int)</signal>
+   <receiver>PMsr2DataDialog</receiver>
+   <slot>fitOnlyChanged(int)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>544</x>
+     <y>445</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>301</x>
+     <y>484</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fCreateMsrFileOnly_checkBox</sender>
+   <signal>stateChanged(int)</signal>
+   <receiver>PMsr2DataDialog</receiver>
+   <slot>createMsrFileOnlyChanged(int)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>544</x>
+     <y>423</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>150</x>
+     <y>487</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+ <slots>
+  <slot>helpContent()</slot>
+  <slot>fitOnlyChanged(int)</slot>
+  <slot>createMsrFileOnlyChanged(int)</slot>
+  <slot>runFirstEntered(QString)</slot>
+  <slot>runLastEntered(QString)</slot>
+  <slot>runListEntered(QString)</slot>
+  <slot>runListFileNameEntered(QString)</slot>
+  <slot>templateRunEntered(QString)</slot>
+  <slot>globalChanged(int)</slot>
+ </slots>
+</ui>
diff --git a/src/musredit_qt6/musredit/forms/PMusrEditAbout.ui b/src/musredit_qt6/musredit/forms/PMusrEditAbout.ui
new file mode 100644
index 00000000..95858b64
--- /dev/null
+++ b/src/musredit_qt6/musredit/forms/PMusrEditAbout.ui
@@ -0,0 +1,128 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PMusrEditAbout</class>
+ <widget class="QDialog" name="PMusrEditAbout">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>395</width>
+    <height>225</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Musr Edit About</string>
+  </property>
+  <property name="windowIcon">
+   <iconset>
+    <normaloff>:/images/musrfit.xpm</normaloff>:/images/musrfit.xpm</iconset>
+  </property>
+  <widget class="QWidget" name="layoutWidget">
+   <property name="geometry">
+    <rect>
+     <x>13</x>
+     <y>13</y>
+     <width>371</width>
+     <height>201</height>
+    </rect>
+   </property>
+   <layout class="QVBoxLayout" name="verticalLayout">
+    <item>
+     <widget class="QLabel" name="fMusrEditAbout_label">
+      <property name="font">
+       <font>
+        <pointsize>24</pointsize>
+        <weight>50</weight>
+        <italic>true</italic>
+        <bold>false</bold>
+       </font>
+      </property>
+      <property name="text">
+       <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
+p, li { white-space: pre-wrap; }
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Sans Serif'; font-size:24pt; font-weight:400; font-style:italic;&quot;&gt;
+&lt;p align=&quot;center&quot; style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;musredit ...&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <widget class="QLabel" name="fGitBranch_label">
+      <property name="font">
+       <font>
+        <weight>75</weight>
+        <italic>true</italic>
+        <bold>true</bold>
+       </font>
+      </property>
+      <property name="text">
+       <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;&lt;span style=&quot; font-weight:600; font-style:italic;&quot;&gt;git-branch: &lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+      </property>
+      <property name="alignment">
+       <set>Qt::AlignCenter</set>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <widget class="QLabel" name="fGitRev_label">
+      <property name="font">
+       <font>
+        <weight>75</weight>
+        <italic>true</italic>
+        <bold>true</bold>
+       </font>
+      </property>
+      <property name="text">
+       <string>git-rev:</string>
+      </property>
+      <property name="alignment">
+       <set>Qt::AlignCenter</set>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <widget class="QLabel" name="fDetails_label">
+      <property name="text">
+       <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
+p, li { white-space: pre-wrap; }
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Sans Serif'; font-size:10pt; font-weight:400; font-style:normal;&quot;&gt;
+&lt;p align=&quot;center&quot; style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;by Andreas Suter&lt;/p&gt;
+&lt;p align=&quot;center&quot; style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;andreas.suter@psi.ch&lt;/p&gt;
+&lt;p align=&quot;center&quot; style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;Paul Scherrer Institute&lt;/p&gt;
+&lt;p align=&quot;center&quot; style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;Switzerland&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <widget class="QPushButton" name="fOk_pushButton">
+      <property name="text">
+       <string>&amp;OK</string>
+      </property>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <resources>
+  <include location="../musredit.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>fOk_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PMusrEditAbout</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>178</x>
+     <y>271</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>226</x>
+     <y>228</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff --git a/src/musredit_qt6/musredit/forms/PPrefsDialog.ui b/src/musredit_qt6/musredit/forms/PPrefsDialog.ui
new file mode 100644
index 00000000..b1eb78f0
--- /dev/null
+++ b/src/musredit_qt6/musredit/forms/PPrefsDialog.ui
@@ -0,0 +1,344 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PPrefsDialog</class>
+ <widget class="QDialog" name="PPrefsDialog">
+  <property name="windowModality">
+   <enum>Qt::WindowModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>452</width>
+    <height>180</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Preferences</string>
+  </property>
+  <property name="windowIcon">
+   <iconset>
+    <normaloff>:/images/musrfit.xpm</normaloff>:/images/musrfit.xpm</iconset>
+  </property>
+  <widget class="QWidget" name="layoutWidget_0">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>5</y>
+     <width>451</width>
+     <height>171</height>
+    </rect>
+   </property>
+   <layout class="QVBoxLayout" name="verticalLayout">
+    <item>
+     <widget class="QTabWidget" name="fTabWidget">
+      <property name="currentIndex">
+       <number>2</number>
+      </property>
+      <widget class="QWidget" name="fGeneral_tab">
+       <attribute name="title">
+        <string>general</string>
+       </attribute>
+       <widget class="QPushButton" name="fDefaultPath_pushButton">
+        <property name="geometry">
+         <rect>
+          <x>10</x>
+          <y>70</y>
+          <width>421</width>
+          <height>31</height>
+         </rect>
+        </property>
+        <property name="text">
+         <string>Change Default Search Paths</string>
+        </property>
+       </widget>
+       <widget class="QWidget" name="layoutWidget">
+        <property name="geometry">
+         <rect>
+          <x>12</x>
+          <y>10</y>
+          <width>415</width>
+          <height>62</height>
+         </rect>
+        </property>
+        <layout class="QHBoxLayout" name="horizontalLayout_2">
+         <item>
+          <widget class="QLineEdit" name="fTimeout_lineEdit"/>
+         </item>
+         <item>
+          <widget class="QLabel" name="fTimeout_label">
+           <property name="text">
+            <string>timeout</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <spacer name="horizontalSpacer_2">
+           <property name="orientation">
+            <enum>Qt::Horizontal</enum>
+           </property>
+           <property name="sizeHint" stdset="0">
+            <size>
+             <width>38</width>
+             <height>30</height>
+            </size>
+           </property>
+          </spacer>
+         </item>
+         <item>
+          <layout class="QVBoxLayout" name="verticalLayout_2">
+           <item>
+            <widget class="QCheckBox" name="fDarkThemeIconsMenu_checkBox">
+             <property name="text">
+              <string>Dark Theme Icons Menu</string>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <widget class="QCheckBox" name="fDarkThemeIconsToolbar_checkBox">
+             <property name="text">
+              <string>Dark Theme Icons Toolbar</string>
+             </property>
+            </widget>
+           </item>
+          </layout>
+         </item>
+        </layout>
+       </widget>
+      </widget>
+      <widget class="QWidget" name="fMusrfit_tab">
+       <attribute name="title">
+        <string>musrfit</string>
+       </attribute>
+       <widget class="QCheckBox" name="fKeepMn2Output_checkBox">
+        <property name="geometry">
+         <rect>
+          <x>10</x>
+          <y>10</y>
+          <width>161</width>
+          <height>23</height>
+         </rect>
+        </property>
+        <property name="text">
+         <string>keep minuit2 output</string>
+        </property>
+       </widget>
+       <widget class="QCheckBox" name="fDumpAscii_checkBox">
+        <property name="geometry">
+         <rect>
+          <x>10</x>
+          <y>35</y>
+          <width>151</width>
+          <height>23</height>
+         </rect>
+        </property>
+        <property name="text">
+         <string>dump ascii</string>
+        </property>
+       </widget>
+       <widget class="QCheckBox" name="fDumpRoot_checkBox">
+        <property name="geometry">
+         <rect>
+          <x>10</x>
+          <y>60</y>
+          <width>131</width>
+          <height>23</height>
+         </rect>
+        </property>
+        <property name="text">
+         <string>dump root</string>
+        </property>
+       </widget>
+       <widget class="QCheckBox" name="fTitleFromData_checkBox">
+        <property name="geometry">
+         <rect>
+          <x>190</x>
+          <y>10</y>
+          <width>241</width>
+          <height>23</height>
+         </rect>
+        </property>
+        <property name="text">
+         <string>take title from data file</string>
+        </property>
+       </widget>
+       <widget class="QCheckBox" name="fPerRunBlockChisq_checkBox">
+        <property name="geometry">
+         <rect>
+          <x>190</x>
+          <y>35</y>
+          <width>241</width>
+          <height>22</height>
+         </rect>
+        </property>
+        <property name="text">
+         <string>keep per run block chisq</string>
+        </property>
+       </widget>
+       <widget class="QCheckBox" name="fEstimateN0_checkBox">
+        <property name="geometry">
+         <rect>
+          <x>190</x>
+          <y>60</y>
+          <width>241</width>
+          <height>22</height>
+         </rect>
+        </property>
+        <property name="text">
+         <string>estimate N0</string>
+        </property>
+       </widget>
+      </widget>
+      <widget class="QWidget" name="fMusrview_tab">
+       <attribute name="title">
+        <string>musrview</string>
+       </attribute>
+       <widget class="QCheckBox" name="fFourier_checkBox">
+        <property name="geometry">
+         <rect>
+          <x>10</x>
+          <y>10</y>
+          <width>421</width>
+          <height>22</height>
+         </rect>
+        </property>
+        <property name="text">
+         <string>start with Fourier</string>
+        </property>
+       </widget>
+       <widget class="QCheckBox" name="fAvg_checkBox">
+        <property name="geometry">
+         <rect>
+          <x>10</x>
+          <y>40</y>
+          <width>421</width>
+          <height>21</height>
+         </rect>
+        </property>
+        <property name="text">
+         <string>start with averaged data/Fourier</string>
+        </property>
+       </widget>
+       <widget class="QCheckBox" name="fOneToOne_checkBox">
+        <property name="geometry">
+         <rect>
+          <x>260</x>
+          <y>10</y>
+          <width>181</width>
+          <height>26</height>
+         </rect>
+        </property>
+        <property name="text">
+         <string>theo at data points only</string>
+        </property>
+       </widget>
+      </widget>
+      <widget class="QWidget" name="fMusrt0_tab">
+       <attribute name="title">
+        <string>musrt0</string>
+       </attribute>
+       <widget class="QCheckBox" name="fEnableMusrT0_checkBox">
+        <property name="geometry">
+         <rect>
+          <x>10</x>
+          <y>10</y>
+          <width>131</width>
+          <height>23</height>
+         </rect>
+        </property>
+        <property name="text">
+         <string>enable it</string>
+        </property>
+       </widget>
+      </widget>
+     </widget>
+    </item>
+    <item>
+     <layout class="QHBoxLayout" name="horizontalLayout">
+      <item>
+       <widget class="QPushButton" name="fHelp_pushButton">
+        <property name="text">
+         <string>&amp;Help</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <spacer name="horizontalSpacer">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>88</width>
+          <height>20</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+      <item>
+       <widget class="QPushButton" name="fOk_pushButton">
+        <property name="text">
+         <string>&amp;OK</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QPushButton" name="fCancel_pushButton">
+        <property name="text">
+         <string>&amp;Cancel</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <tabstops>
+  <tabstop>fTabWidget</tabstop>
+  <tabstop>fKeepMn2Output_checkBox</tabstop>
+  <tabstop>fDumpAscii_checkBox</tabstop>
+  <tabstop>fDumpRoot_checkBox</tabstop>
+  <tabstop>fTitleFromData_checkBox</tabstop>
+  <tabstop>fOk_pushButton</tabstop>
+  <tabstop>fCancel_pushButton</tabstop>
+  <tabstop>fHelp_pushButton</tabstop>
+ </tabstops>
+ <resources>
+  <include location="../musredit.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>fCancel_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PPrefsDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>391</x>
+     <y>198</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>422</x>
+     <y>142</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>fOk_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PPrefsDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>331</x>
+     <y>199</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>293</x>
+     <y>144</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff --git a/src/musredit_qt6/musredit/forms/PReplaceConfirmationDialog.ui b/src/musredit_qt6/musredit/forms/PReplaceConfirmationDialog.ui
new file mode 100644
index 00000000..3765321c
--- /dev/null
+++ b/src/musredit_qt6/musredit/forms/PReplaceConfirmationDialog.ui
@@ -0,0 +1,136 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PReplaceConfirmationDialog</class>
+ <widget class="QDialog" name="PReplaceConfirmationDialog">
+  <property name="windowModality">
+   <enum>Qt::WindowModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>513</width>
+    <height>65</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Replace Confirmation - musredit</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../musredit.qrc">
+    <normaloff>:/images/musrfit.xpm</normaloff>:/images/musrfit.xpm</iconset>
+  </property>
+  <widget class="QLabel" name="fTextLabel">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>10</y>
+     <width>461</width>
+     <height>16</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>Found an occurrence of your search term.What do you want to do?</string>
+   </property>
+  </widget>
+  <widget class="Line" name="line">
+   <property name="geometry">
+    <rect>
+     <x>7</x>
+     <y>20</y>
+     <width>521</width>
+     <height>20</height>
+    </rect>
+   </property>
+   <property name="orientation">
+    <enum>Qt::Horizontal</enum>
+   </property>
+  </widget>
+  <widget class="QPushButton" name="fReplace_pushButton">
+   <property name="geometry">
+    <rect>
+     <x>7</x>
+     <y>35</y>
+     <width>81</width>
+     <height>25</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>&amp;Replace</string>
+   </property>
+  </widget>
+  <widget class="QPushButton" name="fReplaceAndClose_pushButton">
+   <property name="geometry">
+    <rect>
+     <x>87</x>
+     <y>35</y>
+     <width>131</width>
+     <height>25</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>Re&amp;place and Close</string>
+   </property>
+  </widget>
+  <widget class="QPushButton" name="fReplaceAll_pushButton">
+   <property name="geometry">
+    <rect>
+     <x>217</x>
+     <y>35</y>
+     <width>97</width>
+     <height>25</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>Replace &amp;All</string>
+   </property>
+  </widget>
+  <widget class="QPushButton" name="fFindNext_pushButton">
+   <property name="geometry">
+    <rect>
+     <x>317</x>
+     <y>35</y>
+     <width>91</width>
+     <height>25</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>&amp;Find Next</string>
+   </property>
+  </widget>
+  <widget class="QPushButton" name="fClose_pushButton">
+   <property name="geometry">
+    <rect>
+     <x>407</x>
+     <y>35</y>
+     <width>97</width>
+     <height>25</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>&amp;Close</string>
+   </property>
+  </widget>
+ </widget>
+ <resources>
+  <include location="../musredit.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>fClose_pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>PReplaceConfirmationDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>457</x>
+     <y>58</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>468</x>
+     <y>71</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff --git a/src/musredit_qt6/musredit/forms/PReplaceDialog.ui b/src/musredit_qt6/musredit/forms/PReplaceDialog.ui
new file mode 100644
index 00000000..11131623
--- /dev/null
+++ b/src/musredit_qt6/musredit/forms/PReplaceDialog.ui
@@ -0,0 +1,300 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PReplaceDialog</class>
+ <widget class="QDialog" name="PReplaceDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>345</width>
+    <height>315</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Replace Text - musredit</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../musredit.qrc">
+    <normaloff>:/images/musrfit.xpm</normaloff>:/images/musrfit.xpm</iconset>
+  </property>
+  <widget class="QGroupBox" name="fFind_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>341</width>
+     <height>81</height>
+    </rect>
+   </property>
+   <property name="title">
+    <string>Find</string>
+   </property>
+   <widget class="QLabel" name="fFind_label">
+    <property name="geometry">
+     <rect>
+      <x>10</x>
+      <y>20</y>
+      <width>91</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Text to find:</string>
+    </property>
+   </widget>
+   <widget class="QComboBox" name="fFind_comboBox">
+    <property name="geometry">
+     <rect>
+      <x>10</x>
+      <y>40</y>
+      <width>321</width>
+      <height>31</height>
+     </rect>
+    </property>
+    <property name="editable">
+     <bool>true</bool>
+    </property>
+   </widget>
+  </widget>
+  <widget class="QPushButton" name="fReplace_pushButton">
+   <property name="geometry">
+    <rect>
+     <x>190</x>
+     <y>290</y>
+     <width>71</width>
+     <height>25</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>&amp;Replace</string>
+   </property>
+  </widget>
+  <widget class="QPushButton" name="fClose_pushButton">
+   <property name="geometry">
+    <rect>
+     <x>270</x>
+     <y>290</y>
+     <width>71</width>
+     <height>25</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>&amp;Close</string>
+   </property>
+  </widget>
+  <widget class="QGroupBox" name="fOptions_groupBox">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>160</y>
+     <width>341</width>
+     <height>121</height>
+    </rect>
+   </property>
+   <property name="title">
+    <string>Options</string>
+   </property>
+   <property name="alignment">
+    <set>Qt::AlignBottom|Qt::AlignLeading|Qt::AlignLeft</set>
+   </property>
+   <widget class="QCheckBox" name="fCaseSensitive_checkBox">
+    <property name="geometry">
+     <rect>
+      <x>10</x>
+      <y>30</y>
+      <width>141</width>
+      <height>23</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>C&amp;ase Sensitive</string>
+    </property>
+   </widget>
+   <widget class="QCheckBox" name="fWholeWordsOnly_checkBox">
+    <property name="geometry">
+     <rect>
+      <x>10</x>
+      <y>60</y>
+      <width>141</width>
+      <height>23</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>&amp;Whole words only</string>
+    </property>
+   </widget>
+   <widget class="QCheckBox" name="fFromCursor_checkBox">
+    <property name="geometry">
+     <rect>
+      <x>10</x>
+      <y>90</y>
+      <width>141</width>
+      <height>23</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>From c&amp;ursor</string>
+    </property>
+   </widget>
+   <widget class="QCheckBox" name="fFindBackwards_checkBox">
+    <property name="geometry">
+     <rect>
+      <x>180</x>
+      <y>30</y>
+      <width>141</width>
+      <height>23</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Find &amp;backwards</string>
+    </property>
+   </widget>
+   <widget class="QCheckBox" name="fSelectedText_checkBox">
+    <property name="geometry">
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+      <y>60</y>
+      <width>141</width>
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+     <string>&amp;Selected text</string>
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+      <y>20</y>
+      <width>111</width>
+      <height>16</height>
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+  <include location="../musredit.qrc"/>
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+   <signal>editTextChanged(QString)</signal>
+   <receiver>PReplaceDialog</receiver>
+   <slot>onFindTextAvailable(QString)</slot>
+   <hints>
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+   </hints>
+  </connection>
+ </connections>
+ <slots>
+  <slot>onFindTextAvailable(QString)</slot>
+ </slots>
+</ui>
diff --git a/src/musredit_qt6/musredit/icons/MuonSpin-Avatar.gif b/src/musredit_qt6/musredit/icons/MuonSpin-Avatar.gif
new file mode 100644
index 00000000..c87243be
Binary files /dev/null and b/src/musredit_qt6/musredit/icons/MuonSpin-Avatar.gif differ
diff --git a/src/musredit_qt6/musredit/icons/MuonSpin-Avatar.nb b/src/musredit_qt6/musredit/icons/MuonSpin-Avatar.nb
new file mode 100644
index 00000000..8d33b60c
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/MuonSpin-Avatar.nb
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+}, Open  ]]
+},
+WindowSize->{740, 867},
+WindowMargins->{{146, Automatic}, {Automatic, 27}},
+FrontEndVersion->"8.0 for Linux x86 (64-bit) (October 10, 2011)",
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+]
+(* End of Notebook Content *)
+
+(* Internal cache information *)
+(*CellTagsOutline
+CellTagsIndex->{}
+*)
+(*CellTagsIndex
+CellTagsIndex->{}
+*)
+(*NotebookFileOutline
+Notebook[{
+Cell[CellGroupData[{
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+}, Open  ]],
+Cell[CellGroupData[{
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+}
+]
+*)
+
+(* End of internal cache information *)
+
diff --git a/src/musredit_qt6/musredit/icons/document-new-dark.svg b/src/musredit_qt6/musredit/icons/document-new-dark.svg
new file mode 100644
index 00000000..f56bdeb8
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/document-new-dark.svg
@@ -0,0 +1,14 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 22 22">
+  <defs id="defs3051">
+    <style type="text/css" id="current-color-scheme">
+      .ColorScheme-Text {
+        color:#f2f2f2;
+      }
+      </style>
+  </defs>
+ <path 
+    style="fill:currentColor;fill-opacity:1;stroke:none" 
+  d="m4 3v16h1 8 1v-.009766l.007812.009766 3.992188-3.992188v-.007812-1.40625-10.59375h-1-12-1m1 1h12v10h-4v1 3h-8v-14"
+    class="ColorScheme-Text"
+    />
+</svg>
diff --git a/src/musredit_qt6/musredit/icons/document-new-plain.svg b/src/musredit_qt6/musredit/icons/document-new-plain.svg
new file mode 100644
index 00000000..1327e7fd
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/document-new-plain.svg
@@ -0,0 +1,75 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   viewBox="0 0 22 22"
+   version="1.1"
+   id="svg2"
+   height="22"
+   width="22">
+  <defs
+     id="defs4">
+    <style
+       id="current-color-scheme"
+       type="text/css">
+      .ColorScheme-Text {
+        color:#4d4d4d;
+      }
+      .ColorScheme-Background {
+        color:#eff0f1;
+      }
+      .ColorScheme-Highlight {
+        color:#3daee9;
+      }
+      .ColorScheme-ViewText {
+        color:#31363b;
+      }
+      .ColorScheme-ViewBackground {
+        color:#fcfcfc;
+      }
+      .ColorScheme-ViewHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ViewFocus{
+        color:#3daee9;
+      }
+      .ColorScheme-ButtonText {
+        color:#31363b;
+      }
+      .ColorScheme-ButtonBackground {
+        color:#eff0f1;
+      }
+      .ColorScheme-ButtonHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ButtonFocus{
+        color:#3daee9;
+      }
+      </style>
+  </defs>
+  <metadata
+     id="metadata7">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(0,-1030.3622)"
+     id="layer1">
+    <path
+       class="ColorScheme-Text"
+       id="rect4139"
+       transform="translate(0,1030.3622)"
+       d="M 4 3 L 4 19 L 5 19 L 13 19 L 14 19 L 14 18.990234 L 14.007812 19 L 18 15.007812 L 18 15 L 18 13.59375 L 18 3 L 17 3 L 5 3 L 4 3 z M 5 4 L 17 4 L 17 14 L 13 14 L 13 15 L 13 18 L 5 18 L 5 4 z "
+       style="fill:currentColor;fill-opacity:1;stroke:none" />
+  </g>
+</svg>
diff --git a/src/musredit_qt6/musredit/icons/document-open-dark.svg b/src/musredit_qt6/musredit/icons/document-open-dark.svg
new file mode 100644
index 00000000..ef9cbb30
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/document-open-dark.svg
@@ -0,0 +1,14 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 22 22">
+  <defs id="defs3051">
+    <style type="text/css" id="current-color-scheme">
+      .ColorScheme-Text {
+        color:#f2f2f2;
+      }
+      </style>
+  </defs>
+ <path 
+    style="fill:currentColor;fill-opacity:1;stroke:none" 
+	d="m3 3v1 15h1 15v-1-13h-6.992188l-2-2-.007812.007813v-.007813h-6-1m6.00781 5h8.992188v10h-14v-8h3v-.007813l.007813.007813 2-2"
+    class="ColorScheme-Text"
+    />
+</svg>
diff --git a/src/musredit_qt6/musredit/icons/document-open-plain.svg b/src/musredit_qt6/musredit/icons/document-open-plain.svg
new file mode 100644
index 00000000..bcd7478d
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/document-open-plain.svg
@@ -0,0 +1,75 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   viewBox="0 0 22 22"
+   version="1.1"
+   id="svg2"
+   height="22"
+   width="22">
+  <defs
+     id="defs4">
+    <style
+       id="current-color-scheme"
+       type="text/css">
+      .ColorScheme-Text {
+        color:#4d4d4d;
+      }
+      .ColorScheme-Background {
+        color:#eff0f1;
+      }
+      .ColorScheme-Highlight {
+        color:#3daee9;
+      }
+      .ColorScheme-ViewText {
+        color:#31363b;
+      }
+      .ColorScheme-ViewBackground {
+        color:#fcfcfc;
+      }
+      .ColorScheme-ViewHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ViewFocus{
+        color:#3daee9;
+      }
+      .ColorScheme-ButtonText {
+        color:#31363b;
+      }
+      .ColorScheme-ButtonBackground {
+        color:#eff0f1;
+      }
+      .ColorScheme-ButtonHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ButtonFocus{
+        color:#3daee9;
+      }
+      </style>
+  </defs>
+  <metadata
+     id="metadata7">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(0,-1030.3622)"
+     id="layer1">
+    <path
+       class="ColorScheme-Text"
+       id="rect4069"
+       transform="translate(0,1030.3622)"
+       d="M 3 3 L 3 4 L 3 19 L 4 19 L 19 19 L 19 18 L 19 5 L 12.007812 5 L 10.007812 3 L 10 3.0078125 L 10 3 L 4 3 L 3 3 z M 9.0078125 8 L 18 8 L 18 18 L 4 18 L 4 10 L 7 10 L 7 9.9921875 L 7.0078125 10 L 9.0078125 8 z "
+       style="fill:currentColor;fill-opacity:1;stroke:none" />
+  </g>
+</svg>
diff --git a/src/musredit_qt6/musredit/icons/document-print-dark.svg b/src/musredit_qt6/musredit/icons/document-print-dark.svg
new file mode 100644
index 00000000..6eb876ee
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/document-print-dark.svg
@@ -0,0 +1,14 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 22 22">
+  <defs id="defs3051">
+    <style type="text/css" id="current-color-scheme">
+      .ColorScheme-Text {
+        color:#f2f2f2;
+      }
+      </style>
+  </defs>
+ <path 
+    style="fill:currentColor;fill-opacity:1;stroke:none" 
+	d="m5 3v1 4h-2v1 7h1 3v2 1h8v-1-2h4v-1-6-1h-2v-4-1h-12m1 1h10v4h-1v-1h-8v1h-1v-4m1 1v1h8v-1h-8m-3 4h14v6h-2v-2h-10v2h-2v-6m10 1v1h3v-1h-3m-6 6h6v2h-6v-2"
+    class="ColorScheme-Text"
+    />
+</svg>
diff --git a/src/musredit_qt6/musredit/icons/document-print-plain.svg b/src/musredit_qt6/musredit/icons/document-print-plain.svg
new file mode 100644
index 00000000..41c4fcff
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/document-print-plain.svg
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.1"
+   id="svg3404"
+   height="22"
+   width="22">
+  <defs
+     id="defs3406">
+    <style
+       id="current-color-scheme"
+       type="text/css">
+      .ColorScheme-Text {
+        color:#4d4d4d;
+      }
+      .ColorScheme-Background {
+        color:#eff0f1;
+      }
+      .ColorScheme-Highlight {
+        color:#3daee9;
+      }
+      .ColorScheme-ViewText {
+        color:#31363b;
+      }
+      .ColorScheme-ViewBackground {
+        color:#fcfcfc;
+      }
+      .ColorScheme-ViewHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ViewFocus{
+        color:#3daee9;
+      }
+      .ColorScheme-ButtonText {
+        color:#31363b;
+      }
+      .ColorScheme-ButtonBackground {
+        color:#eff0f1;
+      }
+      .ColorScheme-ButtonHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ButtonFocus{
+        color:#3daee9;
+      }
+      </style>
+  </defs>
+  <metadata
+     id="metadata3409">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(-384.57143,-482.93361)"
+     id="layer1">
+    <path
+       class="ColorScheme-Text"
+       id="rect4145"
+       transform="translate(384.57143,482.93361)"
+       d="M 5 3 L 5 4 L 5 8 L 3 8 L 3 9 L 3 16 L 4 16 L 7 16 L 7 18 L 7 19 L 15 19 L 15 18 L 15 16 L 19 16 L 19 15 L 19 9 L 19 8 L 17 8 L 17 4 L 17 3 L 5 3 z M 6 4 L 16 4 L 16 8 L 15 8 L 15 7 L 7 7 L 7 8 L 6 8 L 6 4 z M 7 5 L 7 6 L 15 6 L 15 5 L 7 5 z M 4 9 L 18 9 L 18 15 L 16 15 L 16 13 L 6 13 L 6 15 L 4 15 L 4 9 z M 14 10 L 14 11 L 17 11 L 17 10 L 14 10 z M 8 16 L 14 16 L 14 18 L 8 18 L 8 16 z "
+       style="opacity:1;fill:currentColor;fill-opacity:1;stroke:none" />
+  </g>
+</svg>
diff --git a/src/musredit_qt6/musredit/icons/document-save-dark.svg b/src/musredit_qt6/musredit/icons/document-save-dark.svg
new file mode 100644
index 00000000..3df75d57
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/document-save-dark.svg
@@ -0,0 +1,14 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 22 22">
+  <defs id="defs3051">
+    <style type="text/css" id="current-color-scheme">
+      .ColorScheme-Text {
+        color:#f2f2f2;
+      }
+      </style>
+  </defs>
+ <path 
+    style="fill:currentColor;fill-opacity:1;stroke:none" 
+    d="M 3 2.9980469 L 3 3 L 3 4 L 3 19 L 4 19 L 19 19 L 19 18 L 19 7 L 19 6.3007812 L 18.992188 6.3007812 L 19 6.2910156 L 15.707031 2.9980469 L 15.699219 3.0078125 L 15.699219 2.9980469 L 15 2.9980469 L 3 2.9980469 z M 4 4 L 7 4 L 7 8 L 7 9 L 15 9 L 15 8 L 15 4 L 15.292969 4 L 18 6.7070312 L 18 7 L 18 18 L 16 18 L 16 11 L 15 11 L 7 11 L 6 11 L 6 18 L 4 18 L 4 4 z M 8 4 L 11.900391 4 L 11.900391 8 L 8 8 L 8 4 z M 7 12 L 15 12 L 15 18 L 7 18 L 7 12 z "
+    class="ColorScheme-Text"
+    />  
+</svg>
diff --git a/src/musredit_qt6/musredit/icons/document-save-plain.svg b/src/musredit_qt6/musredit/icons/document-save-plain.svg
new file mode 100644
index 00000000..01669b54
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/document-save-plain.svg
@@ -0,0 +1,95 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   viewBox="0 0 22 22"
+   version="1.1"
+   id="svg2"
+   height="22"
+   width="22">
+  <title
+     id="title4152">I REALLY hate this icon</title>
+  <defs
+     id="defs4">
+    <style
+       id="current-color-scheme"
+       type="text/css">
+      .ColorScheme-Text {
+        color:#4d4d4d;
+      }
+      .ColorScheme-Background {
+        color:#eff0f1;
+      }
+      .ColorScheme-Highlight {
+        color:#3daee9;
+      }
+      .ColorScheme-ViewText {
+        color:#31363b;
+      }
+      .ColorScheme-ViewBackground {
+        color:#fcfcfc;
+      }
+      .ColorScheme-ViewHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ViewFocus{
+        color:#3daee9;
+      }
+      .ColorScheme-ButtonText {
+        color:#31363b;
+      }
+      .ColorScheme-ButtonBackground {
+        color:#eff0f1;
+      }
+      .ColorScheme-ButtonHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ButtonFocus{
+        color:#3daee9;
+      }
+      </style>
+  </defs>
+  <metadata
+     id="metadata7">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title>I REALLY hate this icon</dc:title>
+        <dc:description>Migh as well use Tango... for crying out loud. This damn icon has to die, but no because obviously we're still using floppies therefore it is still relevant in 2014.</dc:description>
+        <dc:language>English</dc:language>
+        <dc:rights>
+          <cc:Agent>
+            <dc:title />
+          </cc:Agent>
+        </dc:rights>
+        <dc:creator>
+          <cc:Agent>
+            <dc:title>Uri Herrera</dc:title>
+          </cc:Agent>
+        </dc:creator>
+        <dc:date>November 20th 2014</dc:date>
+        <cc:license
+           rdf:resource="" />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(0,-1030.3622)"
+     id="layer1">
+    <g
+       id="layer1-7">
+      <path
+         class="ColorScheme-Text"
+         style="fill:currentColor;fill-opacity:1;stroke:none"
+         d="m 3,3 0,1 0,15 1,0 15,0 0,-1 0,-11 0,-0.6992188 -0.0078,0 L 19,6.2929688 15.707031,3 15.699231,3.00781 15.699231,3 15,3 3,3 Z M 4,4 7,4 7,8 7,9 15,9 15,8 15,4 15.292969,4 18,6.7070312 18,7 l 0,11 -2,0 0,-7 -1,0 -8,0 -1,0 0,7 -2,0 0,-14 z m 4,0 3.900391,0 0,4 L 8,8 8,4 Z m -1,8 8,0 0,6 -8,0 0,-6 z"
+         transform="translate(0,1030.3622)"
+         id="rect4126" />
+    </g>
+  </g>
+</svg>
diff --git a/src/musredit_qt6/musredit/icons/edit-copy-dark.svg b/src/musredit_qt6/musredit/icons/edit-copy-dark.svg
new file mode 100644
index 00000000..6de6a598
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/edit-copy-dark.svg
@@ -0,0 +1,14 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 22 22">
+  <defs id="defs3051">
+    <style type="text/css" id="current-color-scheme">
+      .ColorScheme-Text {
+        color:#f2f2f2;
+      }
+      </style>
+  </defs>
+ <path 
+    style="fill:currentColor;fill-opacity:1;stroke:none" 
+	d="m4 3v1 13h1 2 1v1 1h6l4-4v-1-7-1h-2v-3h-1-10-1m1 1h10v2h-7v1 9h-1-2v-12m4 3h8v7h-3-1v1 3h-4v-11"
+    class="ColorScheme-Text"
+    />  
+</svg>
diff --git a/src/musredit_qt6/musredit/icons/edit-copy-plain.svg b/src/musredit_qt6/musredit/icons/edit-copy-plain.svg
new file mode 100644
index 00000000..af0fe5fc
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/edit-copy-plain.svg
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.1"
+   id="svg3979"
+   height="22"
+   width="22">
+  <defs
+     id="defs3981">
+    <style
+       id="current-color-scheme"
+       type="text/css">
+      .ColorScheme-Text {
+        color:#4d4d4d;
+      }
+      .ColorScheme-Background {
+        color:#eff0f1;
+      }
+      .ColorScheme-Highlight {
+        color:#3daee9;
+      }
+      .ColorScheme-ViewText {
+        color:#31363b;
+      }
+      .ColorScheme-ViewBackground {
+        color:#fcfcfc;
+      }
+      .ColorScheme-ViewHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ViewFocus{
+        color:#3daee9;
+      }
+      .ColorScheme-ButtonText {
+        color:#31363b;
+      }
+      .ColorScheme-ButtonBackground {
+        color:#eff0f1;
+      }
+      .ColorScheme-ButtonHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ButtonFocus{
+        color:#3daee9;
+      }
+      </style>
+  </defs>
+  <metadata
+     id="metadata3984">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(-601.71428,-517.21933)"
+     id="layer1">
+    <path
+       class="ColorScheme-Text"
+       id="rect4147"
+       transform="translate(601.71428,517.21933)"
+       d="M 4 3 L 4 4 L 4 17 L 5 17 L 7 17 L 8 17 L 8 18 L 8 19 L 14 19 L 18 15 L 18 14 L 18 7 L 18 6 L 16 6 L 16 3 L 15 3 L 5 3 L 4 3 z M 5 4 L 15 4 L 15 6 L 8 6 L 8 7 L 8 16 L 7 16 L 5 16 L 5 4 z M 9 7 L 17 7 L 17 14 L 14 14 L 13 14 L 13 15 L 13 18 L 9 18 L 9 7 z "
+       style="opacity:1;fill:currentColor;fill-opacity:1;stroke:none" />
+  </g>
+</svg>
diff --git a/src/musredit_qt6/musredit/icons/edit-cut-dark.svg b/src/musredit_qt6/musredit/icons/edit-cut-dark.svg
new file mode 100644
index 00000000..99ab04ef
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/edit-cut-dark.svg
@@ -0,0 +1,14 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 22 22">
+  <defs id="defs3051">
+    <style type="text/css" id="current-color-scheme">
+      .ColorScheme-Text {
+        color:#f2f2f2;
+      }
+      </style>
+  </defs>
+ <path 
+    style="fill:currentColor;fill-opacity:1;stroke:none" 
+	d="m7.01172 3c-.57735 1-.878131 1-.300781 2l3.541016 6.140625-2.058594 3.527344c-.445257-.411453-1.036498-.667969-1.693359-.667969-1.385 0-2.5 1.115-2.5 2.5 0 1.385 1.115 2.5 2.5 2.5 1.385 0 2.5-1.115 2.5-2.5 0-.167103-.01785-.330523-.048828-.488281l1.162109-2.01367c.780419-.001.878798-.774603 1.333985-.785156l1.603515 2.78125c-.033193.163037-.050781.332734-.050781.505859 0 1.385 1.115 2.5 2.5 2.5 1.385 0 2.5-1.115 2.5-2.5 0-1.385-1.115-2.5-2.5-2.5-.653333 0-1.241072.254586-1.685547.662109l-2.054687-3.521484 3.541015-6.140625c.57735-1 .276569-1-.300781-2l-3.994141 6.847656-3.99414-6.847656m3.988281 8c.277 0 .5.223.5.5 0 .277-.223.5-.5.5-.277 0-.5-.223-.5-.5 0-.277.223-.5.5-.5zm-4.5 4c.831 0 1.5.669 1.5 1.5 0 .831-.669 1.5-1.5 1.5-.831 0-1.5-.669-1.5-1.5 0-.831.669-1.5 1.5-1.5m9 0c.831 0 1.5.669 1.5 1.5 0 .831-.669 1.5-1.5 1.5-.831 0-1.5-.669-1.5-1.5 0-.831.669-1.5 1.5-1.5"
+    class="ColorScheme-Text"
+    />  
+</svg>
diff --git a/src/musredit_qt6/musredit/icons/edit-cut-plain.svg b/src/musredit_qt6/musredit/icons/edit-cut-plain.svg
new file mode 100644
index 00000000..1f9c5024
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/edit-cut-plain.svg
@@ -0,0 +1,104 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   viewBox="0 0 22 22"
+   version="1.1"
+   id="svg3815"
+   height="22"
+   width="22">
+  <title
+     id="title4252">I hate this icon</title>
+  <defs
+     id="defs3817">
+    <style
+       id="current-color-scheme"
+       type="text/css">
+      .ColorScheme-Text {
+        color:#4d4d4d;
+      }
+      .ColorScheme-Background {
+        color:#eff0f1;
+      }
+      .ColorScheme-Highlight {
+        color:#3daee9;
+      }
+      .ColorScheme-ViewText {
+        color:#31363b;
+      }
+      .ColorScheme-ViewBackground {
+        color:#fcfcfc;
+      }
+      .ColorScheme-ViewHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ViewFocus{
+        color:#3daee9;
+      }
+      .ColorScheme-ButtonText {
+        color:#31363b;
+      }
+      .ColorScheme-ButtonBackground {
+        color:#eff0f1;
+      }
+      .ColorScheme-ButtonHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ButtonFocus{
+        color:#3daee9;
+      }
+      </style>
+  </defs>
+  <metadata
+     id="metadata3820">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title>I hate this icon</dc:title>
+        <dc:date>October 19th 2014</dc:date>
+        <dc:creator>
+          <cc:Agent>
+            <dc:title>Uri Herrera</dc:title>
+          </cc:Agent>
+        </dc:creator>
+        <dc:rights>
+          <cc:Agent>
+            <dc:title />
+          </cc:Agent>
+        </dc:rights>
+        <dc:language>English</dc:language>
+        <dc:description>An icon I absolutely don't like, and that represents exactly the kind of things why I choose CC licenses.</dc:description>
+        <dc:contributor>
+          <cc:Agent>
+            <dc:title>Everyone</dc:title>
+          </cc:Agent>
+        </dc:contributor>
+        <cc:license
+           rdf:resource="" />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <path
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+     id="HATE_THIS" />
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+     id="BG_MESSAGE"
+     width="18"
+     height="19.000021"
+     x="23.000004"
+     y="2.1484375e-05"
+     ry="0" />
+  <path
+     style="font-style:normal;font-variant:normal;font-weight:300;font-stretch:normal;font-size:medium;line-height:125%;font-family:Canter;-inkscape-font-specification:'Canter Light';letter-spacing:0px;word-spacing:0px;fill:#52d563;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
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+</svg>
diff --git a/src/musredit_qt6/musredit/icons/edit-find-dark.svg b/src/musredit_qt6/musredit/icons/edit-find-dark.svg
new file mode 100644
index 00000000..fb62e414
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/edit-find-dark.svg
@@ -0,0 +1,14 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 22 22">
+  <defs id="defs3051">
+    <style type="text/css" id="current-color-scheme">
+      .ColorScheme-Text {
+        color:#f2f2f2;
+      }
+      </style>
+  </defs>
+ <path 
+    style="fill:currentColor;fill-opacity:1;stroke:none" 
+    d="M 9 3 C 5.6759952 3 3 5.6759952 3 9 C 3 12.324005 5.6759952 15 9 15 C 10.481205 15 11.830584 14.465318 12.875 13.582031 L 18.292969 19 L 19 18.292969 L 13.582031 12.875 C 14.465318 11.830584 15 10.481205 15 9 C 15 5.6759952 12.324005 3 9 3 z M 9 4 C 11.770005 4 14 6.2299952 14 9 C 14 11.770005 11.770005 14 9 14 C 6.2299952 14 4 11.770005 4 9 C 4 6.2299952 6.2299952 4 9 4 z "
+    class="ColorScheme-Text"
+    />  
+</svg>
diff --git a/src/musredit_qt6/musredit/icons/edit-find-plain.svg b/src/musredit_qt6/musredit/icons/edit-find-plain.svg
new file mode 100644
index 00000000..7098f1c9
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/edit-find-plain.svg
@@ -0,0 +1,79 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.1"
+   id="svg952"
+   height="22"
+   width="22">
+  <defs
+     id="defs954">
+    <style
+       id="current-color-scheme"
+       type="text/css">
+      .ColorScheme-Text {
+        color:#4d4d4d;
+      }
+      .ColorScheme-Background {
+        color:#eff0f1;
+      }
+      .ColorScheme-Highlight {
+        color:#3daee9;
+      }
+      .ColorScheme-ViewText {
+        color:#31363b;
+      }
+      .ColorScheme-ViewBackground {
+        color:#fcfcfc;
+      }
+      .ColorScheme-ViewHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ViewFocus{
+        color:#3daee9;
+      }
+      .ColorScheme-ButtonText {
+        color:#31363b;
+      }
+      .ColorScheme-ButtonBackground {
+        color:#eff0f1;
+      }
+      .ColorScheme-ButtonHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ButtonFocus{
+        color:#3daee9;
+      }
+      </style>
+  </defs>
+  <metadata
+     id="metadata957">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(0,-1030.3622)"
+     id="layer1">
+    <path
+       class="ColorScheme-Text"
+       id="path4146"
+       d="m 12.29286,1043.3622 0.707107,-0.7071 6.000032,6 -0.707075,0.7071 z"
+       style="fill:currentColor;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;fill-opacity:1" />
+    <path
+       class="ColorScheme-Text"
+       id="rect4095"
+       transform="translate(0,1030.3622)"
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+       style="fill:currentColor;fill-opacity:1;stroke:none" />
+  </g>
+</svg>
diff --git a/src/musredit_qt6/musredit/icons/edit-paste-dark.svg b/src/musredit_qt6/musredit/icons/edit-paste-dark.svg
new file mode 100644
index 00000000..ba4f3cb5
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/edit-paste-dark.svg
@@ -0,0 +1,14 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 22 22">
+  <defs id="defs3051">
+    <style type="text/css" id="current-color-scheme">
+      .ColorScheme-Text {
+        color:#f2f2f2;
+      }
+      </style>
+  </defs>
+ <path 
+     style="fill:currentColor;fill-opacity:1;stroke:none" 
+     d="M 7 3 L 7 5 L 5 5 L 4 5 L 4 19 L 5 19 L 18 19 L 18 18 L 18 5 L 17 5 L 15 5 L 15 3 L 7 3 z M 5 6 L 6 6 L 6 8 L 16 8 L 16 6 L 17 6 L 17 18 L 5 18 L 5 6 z M 7 9 L 7 10 L 15 10 L 15 9 L 7 9 z M 7 12 L 7 13 L 13 13 L 13 12 L 7 12 z M 7 15 L 7 16 L 10 16 L 10 15 L 7 15 z "
+     class="ColorScheme-Text"
+     />
+</svg>
diff --git a/src/musredit_qt6/musredit/icons/edit-paste-plain.svg b/src/musredit_qt6/musredit/icons/edit-paste-plain.svg
new file mode 100644
index 00000000..4f5e81dd
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/edit-paste-plain.svg
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.1"
+   id="svg3815"
+   height="22"
+   width="22">
+  <defs
+     id="defs3817">
+    <style
+       id="current-color-scheme"
+       type="text/css">
+      .ColorScheme-Text {
+        color:#4d4d4d;
+      }
+      .ColorScheme-Background {
+        color:#eff0f1;
+      }
+      .ColorScheme-Highlight {
+        color:#3daee9;
+      }
+      .ColorScheme-ViewText {
+        color:#31363b;
+      }
+      .ColorScheme-ViewBackground {
+        color:#fcfcfc;
+      }
+      .ColorScheme-ViewHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ViewFocus{
+        color:#3daee9;
+      }
+      .ColorScheme-ButtonText {
+        color:#31363b;
+      }
+      .ColorScheme-ButtonBackground {
+        color:#eff0f1;
+      }
+      .ColorScheme-ButtonHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ButtonFocus{
+        color:#3daee9;
+      }
+      </style>
+  </defs>
+  <metadata
+     id="metadata3820">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(-461.71429,-525.79075)"
+     id="layer1">
+    <path
+       class="ColorScheme-Text"
+       id="rect3381"
+       transform="translate(461.71429,525.79075)"
+       d="M 7 3 L 7 5 L 5 5 L 4 5 L 4 19 L 5 19 L 18 19 L 18 18 L 18 5 L 17 5 L 15 5 L 15 3 L 7 3 z M 5 6 L 6 6 L 6 8 L 16 8 L 16 6 L 17 6 L 17 18 L 5 18 L 5 6 z M 7 9 L 7 10 L 15 10 L 15 9 L 7 9 z M 7 12 L 7 13 L 13 13 L 13 12 L 7 12 z M 7 15 L 7 16 L 10 16 L 10 15 L 7 15 z "
+       style="opacity:1;fill:currentColor;fill-opacity:1;stroke:none" />
+  </g>
+</svg>
diff --git a/src/musredit_qt6/musredit/icons/edit-redo-dark.svg b/src/musredit_qt6/musredit/icons/edit-redo-dark.svg
new file mode 100644
index 00000000..19d34158
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/edit-redo-dark.svg
@@ -0,0 +1,14 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 22 22">
+  <defs id="defs3051">
+    <style type="text/css" id="current-color-scheme">
+      .ColorScheme-Text {
+        color:#f2f2f2;
+      }
+      </style>
+  </defs>
+ <path 
+    style="fill:currentColor;fill-opacity:1;stroke:none" 
+	d="m13.699219 3l-.707031.707031 2.292968 2.292969h-2.285156-1.00781-.492188c-3.601 0-6.5 2.899-6.5 6.5 0 3.601 2.899 6.5 6.5 6.5h1.5v-1h-1.5c-3.047 0-5.5-2.453-5.5-5.5 0-3.047 2.453-5.5 5.5-5.5h.492188 1.00781 2.285156l-2.292968 2.292969.707031.707031 3.292969-3.292969.207031-.207031-.207031-.207031-3.292969-3.292969" 
+    class="ColorScheme-Text"
+    />  
+</svg>
diff --git a/src/musredit_qt6/musredit/icons/edit-redo-plain.svg b/src/musredit_qt6/musredit/icons/edit-redo-plain.svg
new file mode 100644
index 00000000..d2d70ab8
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/edit-redo-plain.svg
@@ -0,0 +1,75 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   viewBox="0 0 22 22"
+   version="1.1"
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+   height="22"
+   width="22">
+  <defs
+     id="defs4">
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+        color:#3daee9;
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+      .ColorScheme-ViewText {
+        color:#31363b;
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+      .ColorScheme-ViewBackground {
+        color:#fcfcfc;
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+      .ColorScheme-ViewHover {
+        color:#93cee9;
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+      .ColorScheme-ViewFocus{
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+      .ColorScheme-ButtonText {
+        color:#31363b;
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+      .ColorScheme-ButtonBackground {
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+      .ColorScheme-ButtonHover {
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+      .ColorScheme-ButtonFocus{
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new file mode 100644
index 00000000..7ab68cf0
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/edit-undo-dark.svg
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new file mode 100644
index 00000000..4169593c
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/edit-undo-plain.svg
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new file mode 100644
index 00000000..6c188cf0
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/go-next-use-dark.svg
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+    class="ColorScheme-Text"
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diff --git a/src/musredit_qt6/musredit/icons/go-next-use-plain.svg b/src/musredit_qt6/musredit/icons/go-next-use-plain.svg
new file mode 100644
index 00000000..4bbeff5c
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/go-next-use-plain.svg
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new file mode 100644
index 00000000..01ef7277
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/go-previous-use-dark.svg
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+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 22 22">
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new file mode 100644
index 00000000..06c4b0c5
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/go-previous-use-plain.svg
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new file mode 100644
index 00000000..2a46e85e
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+++ b/src/musredit_qt6/musredit/icons/inkscape/document-new.svg
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new file mode 100644
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new file mode 100644
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+  <defs id="defs3406">
+    <style type="text/css" id="current-color-scheme">
+      .ColorScheme-Text {
+        color:#4d4d4d;
+      }
+      .ColorScheme-Background {
+        color:#eff0f1;
+      }
+      .ColorScheme-Highlight {
+        color:#3daee9;
+      }
+      .ColorScheme-ViewText {
+        color:#31363b;
+      }
+      .ColorScheme-ViewBackground {
+        color:#fcfcfc;
+      }
+      .ColorScheme-ViewHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ViewFocus{
+        color:#3daee9;
+      }
+      .ColorScheme-ButtonText {
+        color:#31363b;
+      }
+      .ColorScheme-ButtonBackground {
+        color:#eff0f1;
+      }
+      .ColorScheme-ButtonHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ButtonFocus{
+        color:#3daee9;
+      }
+      </style>
+  </defs>
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+    <inkscape:grid type="xygrid" id="grid4117"/>
+    <sodipodi:guide position="2.0000117,19.999986" orientation="18,0" id="guide4123"/>
+    <sodipodi:guide position="2.0000117,1.9999857" orientation="0,18" id="guide4125"/>
+    <sodipodi:guide position="20.000012,1.9999857" orientation="-18,0" id="guide4127"/>
+    <sodipodi:guide position="20.000012,19.999986" orientation="0,-18" id="guide4129"/>
+    <sodipodi:guide position="3.0000117,18.999986" orientation="16,0" id="guide4131"/>
+    <sodipodi:guide position="3.0000117,2.9999857" orientation="0,16" id="guide4133"/>
+    <sodipodi:guide position="19.000012,2.9999857" orientation="-16,0" id="guide4135"/>
+    <sodipodi:guide position="19.000012,18.999986" orientation="0,-16" id="guide4137"/>
+  </sodipodi:namedview>
+  <metadata id="metadata3409">
+    <rdf:RDF>
+      <cc:Work rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
+        <dc:title/>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g inkscape:label="Capa 1" inkscape:groupmode="layer" id="layer1" transform="translate(-384.57143,-482.93361)">
+    <path style="opacity:1;fill:currentColor;fill-opacity:1;stroke:none" d="M 5 3 L 5 4 L 5 8 L 3 8 L 3 9 L 3 16 L 4 16 L 7 16 L 7 18 L 7 19 L 15 19 L 15 18 L 15 16 L 19 16 L 19 15 L 19 9 L 19 8 L 17 8 L 17 4 L 17 3 L 5 3 z M 6 4 L 16 4 L 16 8 L 15 8 L 15 7 L 7 7 L 7 8 L 6 8 L 6 4 z M 7 5 L 7 6 L 15 6 L 15 5 L 7 5 z M 4 9 L 18 9 L 18 15 L 16 15 L 16 13 L 6 13 L 6 15 L 4 15 L 4 9 z M 14 10 L 14 11 L 17 11 L 17 10 L 14 10 z M 8 16 L 14 16 L 14 18 L 8 18 L 8 16 z " transform="translate(384.57143,482.93361)" id="rect4145" class="ColorScheme-Text"/>
+  </g>
+</svg>
diff --git a/src/musredit_qt6/musredit/icons/inkscape/document-save.svg b/src/musredit_qt6/musredit/icons/inkscape/document-save.svg
new file mode 100644
index 00000000..a725304a
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/inkscape/document-save.svg
@@ -0,0 +1,83 @@
+<?xml version="1.0"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+<svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:cc="http://creativecommons.org/ns#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd" xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape" width="22" height="22" id="svg2" version="1.1" inkscape:version="0.91+devel r" viewBox="0 0 22 22" sodipodi:docname="document-save.svg">
+  <title id="title4152">I REALLY hate this icon</title>
+  <defs id="defs4">
+    <style type="text/css" id="current-color-scheme">
+      .ColorScheme-Text {
+        color:#4d4d4d;
+      }
+      .ColorScheme-Background {
+        color:#eff0f1;
+      }
+      .ColorScheme-Highlight {
+        color:#3daee9;
+      }
+      .ColorScheme-ViewText {
+        color:#31363b;
+      }
+      .ColorScheme-ViewBackground {
+        color:#fcfcfc;
+      }
+      .ColorScheme-ViewHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ViewFocus{
+        color:#3daee9;
+      }
+      .ColorScheme-ButtonText {
+        color:#31363b;
+      }
+      .ColorScheme-ButtonBackground {
+        color:#eff0f1;
+      }
+      .ColorScheme-ButtonHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ButtonFocus{
+        color:#3daee9;
+      }
+      </style>
+  </defs>
+  <sodipodi:namedview id="base" pagecolor="#ffffff" bordercolor="#666666" borderopacity="1.0" inkscape:pageopacity="0.0" inkscape:pageshadow="2" inkscape:zoom="16" inkscape:cx="-32.057533" inkscape:cy="11.442155" inkscape:document-units="px" inkscape:current-layer="layer1" showgrid="true" inkscape:showpageshadow="false" borderlayer="true" inkscape:window-width="2560" inkscape:window-height="957" inkscape:window-x="-4" inkscape:window-y="29" inkscape:window-maximized="1" units="px">
+    <sodipodi:guide position="2,20.000017" orientation="18,0" id="guide4085"/>
+    <sodipodi:guide position="2,2.0000174" orientation="0,18" id="guide4087"/>
+    <sodipodi:guide position="20,2.0000174" orientation="-18,0" id="guide4089"/>
+    <sodipodi:guide position="20,20.000017" orientation="0,-18" id="guide4091"/>
+    <sodipodi:guide position="3,19.000017" orientation="16,0" id="guide4093"/>
+    <sodipodi:guide position="3,3.0000174" orientation="0,16" id="guide4095"/>
+    <sodipodi:guide position="19,3.0000174" orientation="-16,0" id="guide4097"/>
+    <sodipodi:guide position="19,19.000017" orientation="0,-16" id="guide4099"/>
+    <inkscape:grid type="xygrid" id="grid4101"/>
+  </sodipodi:namedview>
+  <metadata id="metadata7">
+    <rdf:RDF>
+      <cc:Work rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
+        <dc:title>I REALLY hate this icon</dc:title>
+        <dc:description>Migh as well use Tango... for crying out loud. This damn icon has to die, but no because obviously we're still using floppies therefore it is still relevant in 2014.</dc:description>
+        <dc:language>English</dc:language>
+        <dc:rights>
+          <cc:Agent>
+            <dc:title/>
+          </cc:Agent>
+        </dc:rights>
+        <dc:creator>
+          <cc:Agent>
+            <dc:title>Uri Herrera</dc:title>
+          </cc:Agent>
+        </dc:creator>
+        <dc:date>November 20th 2014</dc:date>
+        <cc:license rdf:resource=""/>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g inkscape:label="Capa 1" inkscape:groupmode="layer" id="layer1" transform="translate(0,-1030.3622)">
+    <g id="layer1-7" inkscape:label="Capa 1">
+      <path id="rect4126" transform="translate(0,1030.3622)" d="m 3,3 0,1 0,15 1,0 15,0 0,-1 0,-11 0,-0.6992188 -0.0078,0 L 19,6.2929688 15.707031,3 15.699231,3.00781 15.699231,3 15,3 3,3 Z M 4,4 7,4 7,8 7,9 15,9 15,8 15,4 15.292969,4 18,6.7070312 18,7 l 0,11 -2,0 0,-7 -1,0 -8,0 -1,0 0,7 -2,0 0,-14 z m 4,0 3.900391,0 0,4 L 8,8 8,4 Z m -1,8 8,0 0,6 -8,0 0,-6 z" style="fill:currentColor;fill-opacity:1;stroke:none" inkscape:connector-curvature="0" class="ColorScheme-Text"/>
+    </g>
+    <rect ry="0" y="1032.3622" x="-23.999996" height="19.000021" width="18" id="BG_MESSAGE" style="color:#000000;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;white-space:normal;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;fill:#1a1a1a;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"/>
+    <path inkscape:connector-curvature="0" id="MESSAGE" d="m -17.800781,1035.5594 0,2.8536 0.138672,0 0,-2.8536 -0.138672,0 z m 3.173828,3.0235 0,0.125 0.5,0 0,3.375 0.06445,0 0,0.6426 c 0.005,0.31 0.289219,0.4962 0.574219,0.6562 0.285,0.16 0.566406,0.2706 0.566406,0.5606 l 0,0.2441 c 0,0.32 -0.166094,0.5645 -0.496094,0.5645 -0.0332,0 -0.06385,0 -0.09375,-0.01 l -0.03906,-0.1133 -0.138672,0 0,0.047 c -0.16373,-0.1012 -0.245161,-0.2934 -0.238281,-0.5 l 0,-0.3007 -0.134766,0 0,0.3007 c -0.004,0.3138 0.143357,0.5471 0.373047,0.6485 l 0,3.3047 0.138672,0 0,-3.0743 1.05664,3.0743 0.134766,0 0,-3.5 -0.134766,0 0,3.1113 -0.970703,-2.8613 c 0.0159,10e-4 0.03057,0 0.04687,0 0.43,0 0.63086,-0.3203 0.63086,-0.6953 l 0,-0.2657 c 0,-0.33 -0.34625,-0.489 -0.65625,-0.664 -0.245,-0.14 -0.463516,-0.261 -0.478516,-0.541 l 0,-0.7149 c 0,-0.37 0.188984,-0.5488 0.458984,-0.5488 0.15442,0 0.262525,0.058 0.333985,0.1504 l 0,0.4804 0.111328,0 0,0.3223 0.134766,0 0,-0.3223 0.878906,0 0,-0.1308 -0.88086,0 c -0.005,-0.1434 -0.0408,-0.2715 -0.103515,-0.375 l 0,-0.459 0.779297,0 0,-0.125 -0.779297,0 0,-2.2852 0.984375,0 0,-0.125 -1.125,0 0,2.836 c -0.0893,-0.066 -0.201175,-0.1035 -0.333985,-0.1035 -0.26702,0 -0.440546,0.1328 -0.529297,0.332 l 0,-2.9395 0.5,0 0,-0.125 -1.134765,0 z m -3.173828,0.029 0,0.4472 0,2.2813 -0.195313,0 0,0.125 0.195313,0 0,0.6172 0.138672,0 0,-0.6172 0.166015,0 0,3.375 0.134766,0 0,-3.375 0.5,0 0,-0.125 -0.800781,0 0,-0.1836 0.996093,0 0,0.9258 0.134766,0 0,-3.4707 -0.134766,0 0,2.416 -0.996093,0 0,-1.9688 0,-0.4472 -0.138672,0 z m 2.207031,0 -0.537109,3.4707 0.140625,0 0.144531,-0.9649 0.714844,0 0.15039,0.9649 0.140625,0 -0.550781,-3.4707 -0.203125,0 z m 0.103516,0.1758 0.339843,2.1953 -0.673828,0 0.333985,-2.1953 z m -1.001954,2.5527 0,3.2715 c -0.0117,-5e-4 -0.02326,0 -0.03516,0 -0.39,0 -0.640625,0.319 -0.640625,0.709 l 0,2.1406 c 0,0.39 0.240391,0.7051 0.650391,0.7051 0.43,0 0.625,-0.3543 0.625,-0.6993 l 0,-0.2558 -0.134766,0 0,0.2558 c 0,0.3 -0.155234,0.5645 -0.490234,0.5645 -0.34,0 -0.509766,-0.2853 -0.509766,-0.5703 l 0,-2.1406 c 0,-0.36 0.209766,-0.5743 0.509766,-0.5743 0.009,0 0.01709,0 0.02539,0 l 0,0.094 0.138672,0 0,-0.068 c 0.21578,0.075 0.326172,0.2987 0.326172,0.5469 l 0.0039,0.2754 0.13086,0 0,-0.2793 c 0,-0.3271 -0.177118,-0.6016 -0.460938,-0.6816 l 0,-0.7188 0.996094,0 0,0.9258 0.03711,0 c -0.0921,0.1238 -0.138672,0.2832 -0.138672,0.4492 l 0,2.1856 c 0,0.38 0.239531,0.6894 0.644531,0.6894 0.42,0 0.625,-0.3403 0.625,-0.6953 l 0,-2.1738 c 0,-0.2799 -0.128282,-0.5302 -0.357422,-0.6387 l 0,-3.3164 -0.138672,0 0,3.2715 c -0.0405,-0.01 -0.08417,-0.012 -0.128906,-0.012 -0.16949,0 -0.304873,0.053 -0.408203,0.1386 l 0,-3.3984 -0.134766,0 0,2.4453 -0.996094,0 0,-2.4453 -0.138672,0 z m -1.308593,3.2891 0,3.5 0.138672,0 0,-3.5 -0.138672,0 z m 2.986328,0.1 c 0.0461,0 0.08977,0.01 0.128906,0.016 l 0,0.096 0.138672,0 0,-0.029 c 0.1511,0.1039 0.222656,0.2941 0.222656,0.4844 l 0,2.1738 c 0,0.305 -0.160234,0.5605 -0.490234,0.5605 -0.345,0 -0.503906,-0.2597 -0.503906,-0.5547 l 0,-2.1855 c 0,-0.31 0.158906,-0.5605 0.503906,-0.5605 z" style="font-style:normal;font-variant:normal;font-weight:300;font-stretch:normal;font-size:medium;line-height:125%;font-family:Canter;-inkscape-font-specification:'Canter Light';letter-spacing:0px;word-spacing:0px;fill:#52d563;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"/>
+  </g>
+</svg>
diff --git a/src/musredit_qt6/musredit/icons/inkscape/edit-copy.svg b/src/musredit_qt6/musredit/icons/inkscape/edit-copy.svg
new file mode 100644
index 00000000..6edb0571
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/inkscape/edit-copy.svg
@@ -0,0 +1,64 @@
+<?xml version="1.0"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+<svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:cc="http://creativecommons.org/ns#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd" xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape" width="22" height="22" id="svg3979" version="1.1" inkscape:version="0.48+devel r" sodipodi:docname="edit-copy.svg">
+  <defs id="defs3981">
+    <style type="text/css" id="current-color-scheme">
+      .ColorScheme-Text {
+        color:#4d4d4d;
+      }
+      .ColorScheme-Background {
+        color:#eff0f1;
+      }
+      .ColorScheme-Highlight {
+        color:#3daee9;
+      }
+      .ColorScheme-ViewText {
+        color:#31363b;
+      }
+      .ColorScheme-ViewBackground {
+        color:#fcfcfc;
+      }
+      .ColorScheme-ViewHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ViewFocus{
+        color:#3daee9;
+      }
+      .ColorScheme-ButtonText {
+        color:#31363b;
+      }
+      .ColorScheme-ButtonBackground {
+        color:#eff0f1;
+      }
+      .ColorScheme-ButtonHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ButtonFocus{
+        color:#3daee9;
+      }
+      </style>
+  </defs>
+  <sodipodi:namedview id="base" pagecolor="#ffffff" bordercolor="#666666" borderopacity="1.0" inkscape:pageopacity="0.0" inkscape:pageshadow="2" inkscape:zoom="23.967943" inkscape:cx="4.1761278" inkscape:cy="11.472414" inkscape:document-units="px" inkscape:current-layer="layer1" showgrid="true" fit-margin-top="0" fit-margin-left="0" fit-margin-right="0" fit-margin-bottom="0" inkscape:window-width="1366" inkscape:window-height="669" inkscape:window-x="-4" inkscape:window-y="25" inkscape:window-maximized="1" inkscape:showpageshadow="false" showguides="true">
+    <inkscape:grid type="xygrid" id="grid4125"/>
+    <sodipodi:guide position="2.0000144,19.99997" orientation="18,0" id="guide4131"/>
+    <sodipodi:guide position="2.0000144,1.9999696" orientation="0,18" id="guide4133"/>
+    <sodipodi:guide position="20.000014,1.9999696" orientation="-18,0" id="guide4135"/>
+    <sodipodi:guide position="20.000014,19.99997" orientation="0,-18" id="guide4137"/>
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+    <sodipodi:guide position="19.000014,2.9999696" orientation="-16,0" id="guide4143"/>
+    <sodipodi:guide position="19.000014,18.99997" orientation="0,-16" id="guide4145"/>
+  </sodipodi:namedview>
+  <metadata id="metadata3984">
+    <rdf:RDF>
+      <cc:Work rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
+        <dc:title/>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g inkscape:label="Capa 1" inkscape:groupmode="layer" id="layer1" transform="translate(-601.71428,-517.21933)">
+    <path style="opacity:1;fill:currentColor;fill-opacity:1;stroke:none" d="M 4 3 L 4 4 L 4 17 L 5 17 L 7 17 L 8 17 L 8 18 L 8 19 L 14 19 L 18 15 L 18 14 L 18 7 L 18 6 L 16 6 L 16 3 L 15 3 L 5 3 L 4 3 z M 5 4 L 15 4 L 15 6 L 8 6 L 8 7 L 8 16 L 7 16 L 5 16 L 5 4 z M 9 7 L 17 7 L 17 14 L 14 14 L 13 14 L 13 15 L 13 18 L 9 18 L 9 7 z " transform="translate(601.71428,517.21933)" id="rect4147" class="ColorScheme-Text"/>
+  </g>
+</svg>
diff --git a/src/musredit_qt6/musredit/icons/inkscape/edit-cut.svg b/src/musredit_qt6/musredit/icons/inkscape/edit-cut.svg
new file mode 100644
index 00000000..1f77c268
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/inkscape/edit-cut.svg
@@ -0,0 +1,84 @@
+<?xml version="1.0"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+<svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:cc="http://creativecommons.org/ns#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd" xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape" width="22" height="22" id="svg3815" version="1.1" inkscape:version="0.91+devel r" sodipodi:docname="edit-cut.svg" viewBox="0 0 22 22">
+  <title id="title4252">I hate this icon</title>
+  <defs id="defs3817">
+    <style type="text/css" id="current-color-scheme">
+      .ColorScheme-Text {
+        color:#4d4d4d;
+      }
+      .ColorScheme-Background {
+        color:#eff0f1;
+      }
+      .ColorScheme-Highlight {
+        color:#3daee9;
+      }
+      .ColorScheme-ViewText {
+        color:#31363b;
+      }
+      .ColorScheme-ViewBackground {
+        color:#fcfcfc;
+      }
+      .ColorScheme-ViewHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ViewFocus{
+        color:#3daee9;
+      }
+      .ColorScheme-ButtonText {
+        color:#31363b;
+      }
+      .ColorScheme-ButtonBackground {
+        color:#eff0f1;
+      }
+      .ColorScheme-ButtonHover {
+        color:#93cee9;
+      }
+      .ColorScheme-ButtonFocus{
+        color:#3daee9;
+      }
+      </style>
+  </defs>
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+      <cc:Work rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
+        <dc:title>I hate this icon</dc:title>
+        <dc:date>October 19th 2014</dc:date>
+        <dc:creator>
+          <cc:Agent>
+            <dc:title>Uri Herrera</dc:title>
+          </cc:Agent>
+        </dc:creator>
+        <dc:rights>
+          <cc:Agent>
+            <dc:title/>
+          </cc:Agent>
+        </dc:rights>
+        <dc:language>English</dc:language>
+        <dc:description>An icon I absolutely don't like, and that represents exactly the kind of things why I choose CC licenses.</dc:description>
+        <dc:contributor>
+          <cc:Agent>
+            <dc:title>Everyone</dc:title>
+          </cc:Agent>
+        </dc:contributor>
+        <cc:license rdf:resource=""/>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
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diff --git a/src/musredit_qt6/musredit/icons/inkscape/edit-find.svg b/src/musredit_qt6/musredit/icons/inkscape/edit-find.svg
new file mode 100644
index 00000000..7694d71d
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/inkscape/edit-find.svg
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new file mode 100644
index 00000000..49233e35
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/inkscape/edit-paste.svg
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new file mode 100644
index 00000000..8f221de0
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new file mode 100644
index 00000000..67add4f4
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/inkscape/edit-undo.svg
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new file mode 100644
index 00000000..04c85bd1
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/inkscape/go-next-use.svg
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+<?xml version="1.0"?>
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new file mode 100644
index 00000000..15facb2f
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/inkscape/go-previous-use.svg
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new file mode 100644
index 00000000..9f4cab35
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/inkscape/msr2data.svg
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new file mode 100644
index 00000000..05704d7c
--- /dev/null
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new file mode 100644
index 00000000..e4d7b3b2
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+++ b/src/musredit_qt6/musredit/icons/inkscape/musrprefs.svg
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new file mode 100644
index 00000000..c92078f3
--- /dev/null
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new file mode 100644
index 00000000..f81adb2f
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/musrdump-plain.svg
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diff --git a/src/musredit_qt6/musredit/icons/musredit.icns b/src/musredit_qt6/musredit/icons/musredit.icns
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index 00000000..ee2fe513
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diff --git a/src/musredit_qt6/musredit/icons/musredit.ico b/src/musredit_qt6/musredit/icons/musredit.ico
new file mode 100644
index 00000000..1fd7720d
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diff --git a/src/musredit_qt6/musredit/icons/musrfit-16x16.gif b/src/musredit_qt6/musredit/icons/musrfit-16x16.gif
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diff --git a/src/musredit_qt6/musredit/icons/musrfit-16x16.ico b/src/musredit_qt6/musredit/icons/musrfit-16x16.ico
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index 00000000..247a09df
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diff --git a/src/musredit_qt6/musredit/icons/musrfit-16x16.png b/src/musredit_qt6/musredit/icons/musrfit-16x16.png
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index 00000000..076937f1
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diff --git a/src/musredit_qt6/musredit/icons/musrfit-16x16.xpm b/src/musredit_qt6/musredit/icons/musrfit-16x16.xpm
new file mode 100644
index 00000000..7826f514
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/musrfit-16x16.xpm
@@ -0,0 +1,22 @@
+/* XPM */
+static char * musrfit_16x16_xpm[] = {
+"16 16 3 1",
+" 	c None",
+".	c #FF0000",
+"+	c #000000",
+"     ...        ",
+"    +... .      ",
+"  .+ ...+.      ",
+" ...  . ...     ",
+" ...    ...     ",
+" ...    ...     ",
+"+ .      .+     ",
+"         .+     ",
+"           .    ",
+"          ...   ",
+"+++ + +++ ...   ",
+"+   +  +  ...+  ",
+"+++ +  +   .  + ",
+"+   +  +    ...+",
+"+   +  +    ... ",
+"            ... "};
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new file mode 100644
index 00000000..45a532c6
--- /dev/null
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diff --git a/src/musredit_qt6/musredit/icons/view-refresh-dark.svg b/src/musredit_qt6/musredit/icons/view-refresh-dark.svg
new file mode 100644
index 00000000..0b66cbef
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/view-refresh-dark.svg
@@ -0,0 +1,17 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 22 22">
+  <defs id="defs3051">
+    <style type="text/css" id="current-color-scheme">
+      .ColorScheme-Text {
+        color:#f2f2f2;
+      }
+      .ColorScheme-Highlight {
+        color:#3daee9;
+      }
+      </style>
+  </defs>
+ <path 
+     style="fill:currentColor;fill-opacity:1;stroke:none" 
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+     class="ColorScheme-Text"
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+</svg>
diff --git a/src/musredit_qt6/musredit/icons/view-refresh-plain.svg b/src/musredit_qt6/musredit/icons/view-refresh-plain.svg
new file mode 100644
index 00000000..c78579d9
--- /dev/null
+++ b/src/musredit_qt6/musredit/icons/view-refresh-plain.svg
@@ -0,0 +1,91 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.1"
+   id="svg4183"
+   height="22"
+   width="22">
+  <defs
+     id="defs4185">
+    <style
+       id="current-color-scheme"
+       type="text/css">
+      .ColorScheme-Text {
+        color:#4d4d4d;
+      }
+      .ColorScheme-Background {
+        color:#eff0f1;
+      }
+      .ColorScheme-Highlight {
+        color:#3daee9;
+      }
+      .ColorScheme-ViewText {
+        color:#31363b;
+      }
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+        color:#93cee9;
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+      .ColorScheme-ButtonText {
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+    </rdf:RDF>
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diff --git a/src/musredit_qt6/musredit/latex_images/abragam.png b/src/musredit_qt6/musredit/latex_images/abragam.png
new file mode 100644
index 00000000..d3c11151
Binary files /dev/null and b/src/musredit_qt6/musredit/latex_images/abragam.png differ
diff --git a/src/musredit_qt6/musredit/latex_images/abragam.tex b/src/musredit_qt6/musredit/latex_images/abragam.tex
new file mode 100644
index 00000000..372a9a38
--- /dev/null
+++ b/src/musredit_qt6/musredit/latex_images/abragam.tex
@@ -0,0 +1,9 @@
+\documentclass[12pt]{article}
+\pagestyle{empty}
+\begin{document}
+
+\begin{displaymath}
+\exp\left[ -(\sigma/\gamma)^2 \left( e^{-\gamma t} - 1 + \gamma t\right) \right]
+\end{displaymath}
+
+\end{document}
\ No newline at end of file
diff --git a/src/musredit_qt6/musredit/latex_images/asymmetry.png b/src/musredit_qt6/musredit/latex_images/asymmetry.png
new file mode 100644
index 00000000..8d54c017
Binary files /dev/null and b/src/musredit_qt6/musredit/latex_images/asymmetry.png differ
diff --git a/src/musredit_qt6/musredit/latex_images/asymmetry.tex b/src/musredit_qt6/musredit/latex_images/asymmetry.tex
new file mode 100644
index 00000000..f21bd2aa
--- /dev/null
+++ b/src/musredit_qt6/musredit/latex_images/asymmetry.tex
@@ -0,0 +1,9 @@
+\documentclass[12pt]{article}
+\pagestyle{empty}
+\begin{document}
+
+\begin{displaymath}
+A
+\end{displaymath}
+
+\end{document}
\ No newline at end of file
diff --git a/src/musredit_qt6/musredit/latex_images/bessel.png b/src/musredit_qt6/musredit/latex_images/bessel.png
new file mode 100644
index 00000000..d0801169
Binary files /dev/null and b/src/musredit_qt6/musredit/latex_images/bessel.png differ
diff --git a/src/musredit_qt6/musredit/latex_images/bessel.tex b/src/musredit_qt6/musredit/latex_images/bessel.tex
new file mode 100644
index 00000000..0b372d7b
--- /dev/null
+++ b/src/musredit_qt6/musredit/latex_images/bessel.tex
@@ -0,0 +1,9 @@
+\documentclass[12pt]{article}
+\pagestyle{empty}
+\begin{document}
+
+\begin{displaymath}
+j_0(2\pi\nu t + \phi \pi/180)
+\end{displaymath}
+
+\end{document}
\ No newline at end of file
diff --git a/src/musredit_qt6/musredit/latex_images/combiLGKT.png b/src/musredit_qt6/musredit/latex_images/combiLGKT.png
new file mode 100644
index 00000000..01734338
Binary files /dev/null and b/src/musredit_qt6/musredit/latex_images/combiLGKT.png differ
diff --git a/src/musredit_qt6/musredit/latex_images/combiLGKT.tex b/src/musredit_qt6/musredit/latex_images/combiLGKT.tex
new file mode 100644
index 00000000..49213056
--- /dev/null
+++ b/src/musredit_qt6/musredit/latex_images/combiLGKT.tex
@@ -0,0 +1,9 @@
+\documentclass[12pt]{article}
+\pagestyle{empty}
+\begin{document}
+
+\begin{displaymath}
+1/3 \left[ 1 + 2\, \left\{ 1 - (\sigma t)^2 - \lambda t\right\}\right]\, e^{-(\sigma t)^2/2 - \lambda t}
+\end{displaymath}
+
+\end{document}
\ No newline at end of file
diff --git a/src/musredit_qt6/musredit/latex_images/generalExp.png b/src/musredit_qt6/musredit/latex_images/generalExp.png
new file mode 100644
index 00000000..6cdc0248
Binary files /dev/null and b/src/musredit_qt6/musredit/latex_images/generalExp.png differ
diff --git a/src/musredit_qt6/musredit/latex_images/generalExp.tex b/src/musredit_qt6/musredit/latex_images/generalExp.tex
new file mode 100644
index 00000000..d99ea317
--- /dev/null
+++ b/src/musredit_qt6/musredit/latex_images/generalExp.tex
@@ -0,0 +1,9 @@
+\documentclass[12pt]{article}
+\pagestyle{empty}
+\begin{document}
+
+\begin{displaymath}
+\exp\left[-(\lambda t)^\beta\right]
+\end{displaymath}
+
+\end{document}
\ No newline at end of file
diff --git a/src/musredit_qt6/musredit/latex_images/internalBessel.png b/src/musredit_qt6/musredit/latex_images/internalBessel.png
new file mode 100644
index 00000000..0220ead7
Binary files /dev/null and b/src/musredit_qt6/musredit/latex_images/internalBessel.png differ
diff --git a/src/musredit_qt6/musredit/latex_images/internalBessel.tex b/src/musredit_qt6/musredit/latex_images/internalBessel.tex
new file mode 100644
index 00000000..934d2b17
--- /dev/null
+++ b/src/musredit_qt6/musredit/latex_images/internalBessel.tex
@@ -0,0 +1,9 @@
+\documentclass[12pt]{article}
+\pagestyle{empty}
+\begin{document}
+
+\begin{displaymath}
+\alpha j_0\left(2\pi\nu t + \phi\pi/180\right) e^{-\lambda_{\rm T} t} + (1-\alpha) e^{-\lambda_{\rm L} t}
+\end{displaymath}
+
+\end{document}
\ No newline at end of file
diff --git a/src/musredit_qt6/musredit/latex_images/internalField.png b/src/musredit_qt6/musredit/latex_images/internalField.png
new file mode 100644
index 00000000..a75823cf
Binary files /dev/null and b/src/musredit_qt6/musredit/latex_images/internalField.png differ
diff --git a/src/musredit_qt6/musredit/latex_images/internalField.tex b/src/musredit_qt6/musredit/latex_images/internalField.tex
new file mode 100644
index 00000000..57606995
--- /dev/null
+++ b/src/musredit_qt6/musredit/latex_images/internalField.tex
@@ -0,0 +1,20 @@
+\documentclass[12pt]{article}
+\pagestyle{empty}
+\begin{document}
+
+% internal field, delta-B
+\begin{displaymath}
+\alpha \cos\left(2\pi\nu t + \phi\pi/180\right) e^{-\lambda_{\rm T} t} + (1-\alpha) e^{-\lambda_{\rm L} t}
+\end{displaymath}
+
+% internal field, Gaussian broadened
+\begin{displaymath}
+\alpha \left[\cos(2\pi\nu t) -\frac{\sigma^2 t}{2\pi\nu}\sin(2\pi\nu t)\right] e^{-(\sigma t)^2/2} + (1-\alpha) e^{-(\lambda t)^\beta}
+\end{displaymath}
+
+% internal field, Lorentzian broadened
+\begin{displaymath}
+\alpha \left[\cos(2\pi\nu t) -\frac{a}{2\pi\nu}\sin(2\pi\nu t)\right] e^{-a t} + (1-\alpha) e^{-\lambda t}
+\end{displaymath}
+
+\end{document}
\ No newline at end of file
diff --git a/src/musredit_qt6/musredit/latex_images/internalFieldGK.png b/src/musredit_qt6/musredit/latex_images/internalFieldGK.png
new file mode 100644
index 00000000..3a8462e2
Binary files /dev/null and b/src/musredit_qt6/musredit/latex_images/internalFieldGK.png differ
diff --git a/src/musredit_qt6/musredit/latex_images/internalFieldLL.png b/src/musredit_qt6/musredit/latex_images/internalFieldLL.png
new file mode 100644
index 00000000..72bff3e0
Binary files /dev/null and b/src/musredit_qt6/musredit/latex_images/internalFieldLL.png differ
diff --git a/src/musredit_qt6/musredit/latex_images/polynom.png b/src/musredit_qt6/musredit/latex_images/polynom.png
new file mode 100644
index 00000000..ae2c018e
Binary files /dev/null and b/src/musredit_qt6/musredit/latex_images/polynom.png differ
diff --git a/src/musredit_qt6/musredit/latex_images/polynom.tex b/src/musredit_qt6/musredit/latex_images/polynom.tex
new file mode 100644
index 00000000..cfcdf4b0
--- /dev/null
+++ b/src/musredit_qt6/musredit/latex_images/polynom.tex
@@ -0,0 +1,9 @@
+\documentclass[12pt]{article}
+\pagestyle{empty}
+\begin{document}
+
+\begin{displaymath}
+\sum_{k=0}^n a_k (t-t_0)^k
+\end{displaymath}
+
+\end{document}
\ No newline at end of file
diff --git a/src/musredit_qt6/musredit/latex_images/simpleExp.png b/src/musredit_qt6/musredit/latex_images/simpleExp.png
new file mode 100644
index 00000000..e033d578
Binary files /dev/null and b/src/musredit_qt6/musredit/latex_images/simpleExp.png differ
diff --git a/src/musredit_qt6/musredit/latex_images/simpleExp.tex b/src/musredit_qt6/musredit/latex_images/simpleExp.tex
new file mode 100644
index 00000000..86049aa1
--- /dev/null
+++ b/src/musredit_qt6/musredit/latex_images/simpleExp.tex
@@ -0,0 +1,9 @@
+\documentclass[12pt]{article}
+\pagestyle{empty}
+\begin{document}
+
+\begin{displaymath}
+\exp(-\lambda t)
+\end{displaymath}
+
+\end{document}
\ No newline at end of file
diff --git a/src/musredit_qt6/musredit/latex_images/simpleGauss.png b/src/musredit_qt6/musredit/latex_images/simpleGauss.png
new file mode 100644
index 00000000..a5b8ed8c
Binary files /dev/null and b/src/musredit_qt6/musredit/latex_images/simpleGauss.png differ
diff --git a/src/musredit_qt6/musredit/latex_images/simpleGauss.tex b/src/musredit_qt6/musredit/latex_images/simpleGauss.tex
new file mode 100644
index 00000000..e8f20339
--- /dev/null
+++ b/src/musredit_qt6/musredit/latex_images/simpleGauss.tex
@@ -0,0 +1,9 @@
+\documentclass[12pt]{article}
+\pagestyle{empty}
+\begin{document}
+
+\begin{displaymath}
+\exp\left[-1/2(\sigma t)^2\right]
+\end{displaymath}
+
+\end{document}
\ No newline at end of file
diff --git a/src/musredit_qt6/musredit/latex_images/statExpKT.png b/src/musredit_qt6/musredit/latex_images/statExpKT.png
new file mode 100644
index 00000000..60e13e78
Binary files /dev/null and b/src/musredit_qt6/musredit/latex_images/statExpKT.png differ
diff --git a/src/musredit_qt6/musredit/latex_images/statExpKT.tex b/src/musredit_qt6/musredit/latex_images/statExpKT.tex
new file mode 100644
index 00000000..32a8e61f
--- /dev/null
+++ b/src/musredit_qt6/musredit/latex_images/statExpKT.tex
@@ -0,0 +1,9 @@
+\documentclass[12pt]{article}
+\pagestyle{empty}
+\begin{document}
+
+\begin{displaymath}
+1/3 \left[ 1 + 2\, \left\{ 1 - \lambda t \right\}\right]\, e^{-\lambda t}
+\end{displaymath}
+
+\end{document}
\ No newline at end of file
diff --git a/src/musredit_qt6/musredit/latex_images/statGssKT.png b/src/musredit_qt6/musredit/latex_images/statGssKT.png
new file mode 100644
index 00000000..e28023b5
Binary files /dev/null and b/src/musredit_qt6/musredit/latex_images/statGssKT.png differ
diff --git a/src/musredit_qt6/musredit/latex_images/statGssKT.tex b/src/musredit_qt6/musredit/latex_images/statGssKT.tex
new file mode 100644
index 00000000..4852ffb7
--- /dev/null
+++ b/src/musredit_qt6/musredit/latex_images/statGssKT.tex
@@ -0,0 +1,9 @@
+\documentclass[12pt]{article}
+\pagestyle{empty}
+\begin{document}
+
+\begin{displaymath}
+1/3 \left[ 1 + 2\, \left\{ 1 - (\sigma t)^2 \right\}\right]\, e^{-(\sigma t)^2/2}~
+\end{displaymath}
+
+\end{document}
\ No newline at end of file
diff --git a/src/musredit_qt6/musredit/latex_images/textogif b/src/musredit_qt6/musredit/latex_images/textogif
new file mode 100644
index 00000000..f5d98b2f
--- /dev/null
+++ b/src/musredit_qt6/musredit/latex_images/textogif
@@ -0,0 +1,233 @@
+#! /usr/bin/perl
+#
+#                          T E X T O G I F
+#
+#                          by John Walker
+#                      http://www.fourmilab.ch/
+#
+    	    	     $version = '1.1 (2003-11-07)';
+#
+#
+#   Converts a LaTeX file containing equations(s) into a GIF file for
+#   embedding into an HTML document.  The black and white image of the
+#   equation is created at high resolution and then resampled to the
+#   target resolution to antialias what would otherwise be jagged
+#   edges.
+#
+#   Online documentation with sample output is available on the Web
+#   at http://www.fourmilab.ch/webtools/textogif/
+#
+#   Write your equation (or anything else you can typeset with LaTeX)
+#   in a file like:
+#
+#       \documentclass[12pt]{article}
+#       \pagestyle{empty}
+#       \begin{document}
+#
+#       \begin{displaymath}
+#       \bf  % Compiled formulae often look better in boldface
+#       \int H(x,x')\psi(x')dx' = -\frac{\hbar2}{2m}\frac{d2}{dx2}
+#                                 \psi(x)+V(x)\psi(x)
+#       \end{displaymath}
+#
+#       \end{document}
+#
+#   The "\pagestyle{empty}" is required to avoid generating a huge
+#   image with a page number at the bottom.
+#
+#   Then (assuming you have all the software described below installed
+#   properly), you can simply say:
+#
+#       textogif [options] filename ...
+#
+#   to compile filename.tex to filename.gif, an interlaced,
+#   transparent background GIF file ready to use an an inline image.
+#   You can specify the base name, for example, "schrod", rather than
+#   the full name of the TeX file ("schrod.tex").  TeX requires the
+#   input file to have an extension of ".tex".  The command line
+#   options are described in the help text at the end of this program
+#   and in the "Default Configuration" section below.
+#
+#   A sample IMG tag, including the image width and height is printed
+#   on standard error, for example:
+#
+#       <img src="schrod.gif" width=508 height=56>
+#
+#                         Required Software
+#
+#   This script requires the following software to be installed
+#   in the standard manner.  Version numbers are those used in the
+#   development and testing of the script.
+#
+#   Perl        5.8.0 (anything later than 4.036 should work)
+#   TeX         3.14159 (Web2C 7.3.1)
+#   LaTeX2e     <2000/06/01>
+#   dvips       dvipsk 5.86
+#   Ghostscript 6.52 (2001-10-20)
+#   Netpbm      9.24
+#
+#
+#                       Default Configuration
+#
+#   The following settings are the defaults used if the -dpi and
+#   -res options are not specified on the command line.
+#
+#   The parameter $dpi controls how large the equation will appear
+#   with respect to other inline images and the surrounding text.
+#   The parameter is expressed in "dots per inch" in the PostScript
+#   sense.  Unfortunately, since there's no standard text size in
+#   Web browsers (and most allow the user to change fonts and
+#   point sizes), there's no "right" value for this setting.  The
+#   default of 150 seems about right for most documents.  A setting
+#   of 75 generates equations at half the normal size, while 300
+#   doubles the size of equations.  The setting of $dpi can always be
+#   overridden by specifying the "-dpi" command line option.
+#
+    $dpi = 150;
+#
+#   The parameter $res specifies the oversampling as the ratio
+#   of the final image size to the initial black and white image.
+#   Smaller values produce smoothing with more levels of grey but
+#   require (much) more memory and intermediate file space to create
+#   the image.  If you run out of memory or disc space with the
+#   default value of 0.5, try changing it to 0.75.  A $res setting of
+#   1.0 disables antialiasing entirely.  The setting of $res can
+#   always be overridden by specifying the "res" command line option.
+#
+    $res = 0.5;
+#
+#   The $background parameter supplies a command, which may be
+#   void, to be inserted in the image processing pipeline to
+#   adjust the original black-on-white image so that its background
+#   agrees with that of the document in which it is to be inserted.
+#   For a document with the default grey background used by Mosaic
+#   and old versions of Netscape, use:
+#
+#       $background = "ppmdim 0.7 |";  $transparent = "b2/b2/b2";
+#
+#   If your document uses a white background, the void specification:
+#
+#       $background = "";  $transparent = "ff/ff/ff";
+#
+#   should be used.  For colour or pattern backgrounds, you'll have
+#   to hack the code.  The reason for adjusting the background is to
+#   ensure that when the image is resampled and then output with a
+#   transparent background the edges of the characters will fade
+#   smoothly into the page background.  Otherwise you'll get a
+#   distracting "halo" around each character.  You can override this
+#   default specification with the -grey command line option.
+#
+    $background = "";  $transparent = "ff/ff/ff";
+#
+#   Image generation and decoding commands for GIF and PNG output.
+#
+    $cmdGIF = 'ppmtogif';
+    $cmdGIFdecode = 'giftopnm';
+    $cmdPNG = 'pnmtopng';
+    $cmdPNGdecode = 'pngtopnm';
+#
+#   Default image creation modes
+#
+    $imageCmd = $cmdGIF;
+    $imageCmdD = $cmdGIFdecode;
+    $imageExt = 'gif';
+
+    #
+    #   Command line option processing
+    #
+    while ($ARGV[0] =~ m/^-/) {
+        $_ = shift(@ARGV);
+	s/^--/-/;   	    	      # Allow GNU-style -- options
+        if (m/^-d/) {                 # -dpi nnn
+            $dpi = shift(@ARGV);
+        } elsif (m/^-gi/) {           # -gif
+	    $imageCmd = $cmdGIF;
+	    $imageCmdD = $cmdGIFdecode;
+	    $imageExt = 'gif';
+        } elsif (m/^-gr/) {           # -grey n
+	    $grey = shift(@ARGV);
+	    $background = "ppmdim $grey | ";
+	    $greylev = int(255 * $grey);
+	    $transparent = sprintf("%02x/%02x/%02x", $greylev, $greylev, $greylev);
+        } elsif (m/^-h/) {            # -help
+	    &help();
+	    exit(0);
+        } elsif (m/^-p/) {            # -png
+	    $imageCmd = $cmdPNG;
+	    $imageCmdD = $cmdPNGdecode;
+	    $imageExt = 'png';
+        } elsif (m/^-r/) {            # -res nnn
+            $res = shift(@ARGV);
+        } elsif (m/^-v/) {            # -version
+	    print("Version $version\n");
+	    exit(0);
+        }
+    }
+    #
+    #   Main file processing loop
+    #
+    foreach $f (@ARGV) {
+        $f =~ s/(.*)\.tex$/$1/;
+        &syscmd("echo x | latex  $f \n");
+        &syscmd("dvips -f $f >_temp_$$.ps\n");
+	    
+	#   Assemble and execute the command pipeline which generates the image.
+
+	#   Start by invoking Ghostscript with the pbmraw output device and
+	#   output file set to standard output ("-") and the requested resolution.
+	#   The -q (Quiet) option is required; otherwise Ghostscript will send
+	#   processing information to standard output and corrupt transmission
+	#   of the bitmap to the next component in the pipeline.
+    	$cmd = "echo quit | gs -q -dNOPAUSE  -r" . int($dpi / $res). "x". int($dpi / $res) .
+	    	" -sOutputFile=- -sDEVICE=pbmraw _temp_$$.ps | " .
+		
+	#   Next we crop white space surrounding the generated text, promote
+	#   the monochrome bitmap to a grey scale image with 8 bits per pixel,
+	#   apply whatever background adjustment transform is requested, and
+	#   scale the image to the desired size.
+	    	"pnmcrop -white | pnmdepth 255 | $background pnmscale " .
+                $res . " | " .
+		
+	#   Finally, convert the image to the desired output format and write
+	#   the output file.
+            	"$imageCmd -interlace -transparent rgb:$transparent >$f.$imageExt";
+	&syscmd($cmd);
+
+    	#   Sweep up debris left around by the various intermediate steps
+        &syscmd("rm $f.dvi $f.aux $f.log _temp_$$.ps");
+
+	#   Print the reference to include this figure, including width and height,
+	#   to standard error.
+        $r = `$imageCmdD $f.$imageExt | pnmfile`;
+        $r =~ m/(\d+) by (\d+)/;
+        print(STDERR "<img src=\"$f.$imageExt\" width=\"$1\" height=\"$2\">\n");
+    }
+    
+    #	Echo and execute a system command
+    
+    sub syscmd {
+    	local ($cmd) = @_;
+	
+	print(STDERR "$cmd\n");
+	system($cmd) == 0 || die("Error processing command:\n\t$cmd\n\t");
+    }
+
+    #	Print help text
+    
+    sub help {
+    	print <<"EOD"
+usage: textogif [ options ] texfile...
+    Options:
+        -dpi n          Set rendering dots per inch to n (default 150)
+        -gif            Generate GIF image (default)
+        -grey           Grey scale background level: 0 = black, 1 = white (default)
+        -help           Print this message
+        -png            Generate PNG image
+        -res n          Set oversampling ratio, smaller = finer (default 0.5)
+        -version        Print version number
+For documentation and the latest version of this program
+please visit the Web page:
+    http://www.fourmilab.ch/webtools/textogif/
+EOD
+;
+    }
diff --git a/src/musredit_qt6/musredit/latex_images/tfCos.png b/src/musredit_qt6/musredit/latex_images/tfCos.png
new file mode 100644
index 00000000..eb925afb
Binary files /dev/null and b/src/musredit_qt6/musredit/latex_images/tfCos.png differ
diff --git a/src/musredit_qt6/musredit/latex_images/tfCos.tex b/src/musredit_qt6/musredit/latex_images/tfCos.tex
new file mode 100644
index 00000000..eff39d22
--- /dev/null
+++ b/src/musredit_qt6/musredit/latex_images/tfCos.tex
@@ -0,0 +1,9 @@
+\documentclass[12pt]{article}
+\pagestyle{empty}
+\begin{document}
+
+\begin{displaymath}
+\cos\left(2\pi\nu t + \phi\pi/180\right)
+\end{displaymath}
+
+\end{document}
\ No newline at end of file
diff --git a/src/musredit_qt6/musredit/main.cpp b/src/musredit_qt6/musredit/main.cpp
new file mode 100644
index 00000000..76dfe392
--- /dev/null
+++ b/src/musredit_qt6/musredit/main.cpp
@@ -0,0 +1,71 @@
+/****************************************************************************
+
+  main.cpp
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <iostream>
+
+#include <QApplication>
+
+#include "git-revision.h"
+#include "PTextEdit.h"
+#include "PFitOutputHandler.h"
+
+/**
+ * <p>musredit is a simple editor based interface to the musrfit programs. It is based on Qt 4.6
+ * of Digia (<code>http://qt.digia.com</code> and <code>http://qt-project.org/</code>).
+ *
+ * <p>musredit is free software liensenced under GPL 2 or later (for detail license informations see
+ * <code>http://www.gnu.org/licenses</code>).
+ */
+int main( int argc, char ** argv ) 
+{
+  Q_INIT_RESOURCE(musredit);
+
+  if (argc == 2) {
+    if (!strcmp(argv[1], "--help") || !strcmp(argv[1], "-h")) {
+      std::cout << std::endl << "usage: musredit [<msr-files>] | -h, --help | -v, --version";
+      std::cout << std::endl << std::endl;
+      return 0;
+    } else if (!strcmp(argv[1], "--version") || !strcmp(argv[1], "-v")) {
+      std::cout << std::endl << "musredit git-branch: " << GIT_BRANCH << ", git-rev: " << GIT_CURRENT_SHA1;
+      std::cout << std::endl << std::endl;
+      return 0;
+    }
+  }
+
+  QApplication a( argc, argv );
+
+  PTextEdit *mw = new PTextEdit();
+  mw->setWindowTitle( "MusrFit Editor" );
+  mw->resize( 800, 800 );
+  mw->show();
+
+  a.connect( &a, SIGNAL( lastWindowClosed() ), &a, SLOT( quit() ) );
+  a.connect( &a, SIGNAL( aboutToQuit() ), mw, SLOT( aboutToQuit() ) );
+  return a.exec();
+}
diff --git a/src/musredit_qt6/musredit/musredit.dox b/src/musredit_qt6/musredit/musredit.dox
new file mode 100644
index 00000000..064af8ee
--- /dev/null
+++ b/src/musredit_qt6/musredit/musredit.dox
@@ -0,0 +1,21 @@
+/*********************************************************************************************
+
+  name:       musredit.dox
+
+  created by: Andreas Suter, 2015/10/26
+
+  content:    Description of musredit.
+
+**********************************************************************************************/
+
+/**
+
+\mainpage musredit
+
+<p>musredit is a simple editor based interface to the musrfit programs. It is based on Qt 5.5
+of The Qt Company (<code>http://www.qt.io</code>).
+
+<p>musredit is free software liensenced under GPL 2 or later (for detail license informations see
+<code>http://www.gnu.org/licenses</code>).
+
+*/
diff --git a/src/musredit_qt6/musredit/musredit.h b/src/musredit_qt6/musredit/musredit.h
new file mode 100644
index 00000000..8cdbb2f1
--- /dev/null
+++ b/src/musredit_qt6/musredit/musredit.h
@@ -0,0 +1,81 @@
+/****************************************************************************
+
+  musredit.h
+
+  Author: Andreas Suter
+  e-mail: andreas.suter@psi.ch
+
+*****************************************************************************/
+
+/***************************************************************************
+ *   Copyright (C) 2010-2019 by Andreas Suter                              *
+ *   andreas.suter@psi.ch                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef _MUSREDIT_H_
+#define _MUSREDIT_H_
+
+#include <QString>
+
+#define MAX_RECENT_FILES 5
+
+//-------------------------------------------------------------------------------------------------
+/**
+ * <p> This structure is used in conjunction to <code>msr2data</code>. It stores the necessary
+ * parameters to handle <code>msr2data</code>. For a detailed description of the meaning of these
+ * parameters see <code>msr2data --help</code> and the online documentation.
+ */
+typedef struct {
+  QString runList;             ///< list of run numbers (usage 3 of msr2data)
+  QString runListFileName;     ///< run list filename (usage 4 of msr2data)
+  QString msrFileExtension;    ///< msr filename extension, e.g. '0100_h13.msr' -> '_h13'
+  int templateRunNo;           ///< fit template run number
+  QString paramList;           ///< parameter list to be exported.
+  QString dbOutputFileName;    ///< output file name for the generated (trumf-like) db-file.
+  bool writeDbHeader;          ///< flag indicating if a db header shall be generated (== !noheader in msr2data)
+  bool ignoreDataHeaderInfo;   ///< flag indicating if data header info (like temp.) shall be ignored (== nosummary in msr2data)
+  bool keepMinuit2Output;      ///< flag indicating if the minuit2 output shall be kept ('-k' in msr2data)
+  bool writeColumnData;        ///< flag indicating if instead of a db-file a column data ascii file shall be written ('data' in msr2data)
+  bool recreateDbFile;         ///< flag: true = recreate db-file, false = append to present db-file
+  bool chainFit;               ///< flag: true = chain fit, i.e. the template for a fit is the preceeding run. false = the template is always the source for the new msr-file
+  bool openFilesAfterFitting;  ///< flag: true = open msr-file after fit in musredit. false = do not open msr-file after fit.
+  bool titleFromDataFile;      ///< flag indicating if the title for the msr-file shall be extracted from the data-file ('-t' in msr2data)
+  bool estimateN0;             ///< flag indicating if the N0 shall be estimated for single histogram fitting
+  bool perRunBlockChisq;       ///< flag indicating if per-run-block-chisq shall be dumped into the msr-file
+  bool createMsrFileOnly;      ///< flag: true = just create the msr-files without any fitting ('msr-<template>' in msr2data)
+  bool fitOnly;                ///< flag: true = just perform the fits wihtout generating any msr-files ('fit' in msr2data).
+  bool global;                 ///< flag: true = 'global' option
+  bool globalPlus;             ///< flag: true = 'global+' option
+} PMsr2DataParam;
+
+//-------------------------------------------------------------------------------------------------
+/**
+ * This structure is used to handle find (and replace) within <code>musredit</code> properly.
+ */
+typedef struct {
+  QString findText;     ///< text to be found
+  QString replaceText;  ///< replacement string
+  bool caseSensitive;   ///< true = case sensitive
+  bool wholeWordsOnly;  ///< true = look for whole words only
+  bool fromCursor;      ///< true = start the find/replace form the cursor position only
+  bool findBackwards;   ///< true = reversed search
+  bool selectedText;    ///< true = handle only the selected text
+  bool promptOnReplace; ///< true = request on OK from the user before performing the replace action
+} PFindReplaceData;
+
+#endif // _MUSREDIT_H_
diff --git a/src/musredit_qt6/musredit/musredit.pro b/src/musredit_qt6/musredit/musredit.pro
new file mode 100644
index 00000000..48d69e0c
--- /dev/null
+++ b/src/musredit_qt6/musredit/musredit.pro
@@ -0,0 +1,182 @@
+TEMPLATE = app
+TARGET = musredit
+
+packagesExist(Qt5WebEngine) {
+  message("Qt5WebEngine found")
+  DEFINES += HAVE_QT_WEB_ENGINE
+  HAVE_QT_WEB_ENGINE = 1
+}
+isEmpty( HAVE_QT_WEB_ENGINE ) {
+  packagesExist(QtWebKit) {
+    message("QtWebKit found")
+    DEFINES += HAVE_QT_WEB_KIT
+    HAVE_QT_WEB_ENGINE = 0   
+  }
+  # Mac calls it Qt5WebKit, hence
+  packagesExist(Qt5WebKit) {
+    message("Qt5WebKit found")
+    DEFINES += HAVE_QT_WEB_KIT
+    HAVE_QT_WEB_ENGINE = 0   
+  }
+}
+isEmpty(HAVE_QT_WEB_ENGINE) {
+  message("Neither Qt(5)WebKit nor Qt5WebEngine found. Something is wrong, please check")
+}
+
+QMAKE_CXXFLAGS += -std=c++11
+
+# install path for musredit
+count( PREFIX, 1 ) {
+    MUSREDIT_INSTALL_PATH = $${PREFIX}/bin
+}
+isEmpty( MUSREDIT_INSTALL_PATH ) {
+    MUSR_FIT_PATH = $$(MUSRFITPATH)
+    count( MUSR_FIT_PATH, 1 ) {
+        MUSREDIT_INSTALL_PATH = $$(MUSRFITPATH)
+    }
+}
+isEmpty( MUSREDIT_INSTALL_PATH ) {
+    ROOT_SYS_PATH = $$(ROOTSYS)
+    count( ROOT_SYS_PATH, 1 ) {
+        MUSREDIT_INSTALL_PATH = $$(ROOTSYS)/bin
+    }
+}
+isEmpty( MUSREDIT_INSTALL_PATH ) {
+    MUSREDIT_INSTALL_PATH = /usr/local/bin
+}
+
+unix {
+    message( "Determined installation path: $${MUSREDIT_INSTALL_PATH}" )
+}
+
+unix:target.path = $${MUSREDIT_INSTALL_PATH}
+macx:target.path = /Applications
+win32:target.path = c:/musrfit/bin
+
+INSTALLS += target
+
+# This is only needed for SL5.1
+exists ( /opt/fontconfig-2.8.0/lib/libfontconfig.so ) {
+  unix:LIBS += -L/opt/fontconfig-2.8.0/lib/ -lfontconfig
+}
+
+exists( /usr/bin/cygwin1.dll ) {
+      QMAKE_CXXFLAGS += -D_WIN32GCC
+      QMAKE_LFLAGS_APP = -Wl,--enable-auto-import
+}
+
+isEmpty( CC ) {
+    CC = gcc
+}
+
+isEmpty( CXX ) {
+    CXX = g++
+}
+
+QMAKE_CC = $${CC}
+QMAKE_CXX = $${CXX}
+QMAKE_LINK = $${CXX}
+
+# set proper permission for Mac OSX
+macx {
+   QMAKE_INSTALL_FILE = install -m 6755 -p -o $$(USER) -g staff
+}
+
+# install path for the XML configuration file
+unix:xml.path = $$(HOME)/.musrfit/musredit
+macx:xml.path = $$(HOME)/.musrfit/musredit
+win32:xml.path = c:/musrfit/bin
+
+CONFIG += qt \
+    warn_on \
+    release
+
+QT += widgets
+QT += xml
+isEqual(HAVE_QT_WEB_ENGINE, 0) {
+  QT += webkitwidgets
+}
+isEqual(HAVE_QT_WEB_ENGINE, 1) {
+  QT += webenginewidgets
+}
+QT += network
+QT += printsupport
+QT += svg
+
+INCLUDEPATH += "../"
+INCLUDEPATH += "../../include"
+
+HEADERS = musredit.h \
+    ../musrfit-info.h \
+    PHelp.h \
+    PTextEdit.h \
+    PSubTextEdit.h \
+    PAdmin.h \
+    PFindDialog.h \
+    PReplaceDialog.h \
+    PReplaceConfirmationDialog.h \
+    PFitOutputHandler.h \
+    PDumpOutputHandler.h \
+    PPrefsDialog.h \
+    PGetMusrFTOptionsDialog.h \
+    PGetTitleBlockDialog.h \ 
+    PGetParameterBlockDialog.h \
+    PGetTheoryBlockDialog.h \
+    PGetFunctionsBlockDialog.h \
+    PGetAsymmetryRunBlockDialog.h \
+    PGetSingleHistoRunBlockDialog.h \
+    PGetNonMusrRunBlockDialog.h \
+    PGetFourierBlockDialog.h \
+    PGetPlotBlockDialog.h \
+    PMsr2DataDialog.h \
+    PChangeDefaultPathsDialog.h \
+    PMusrEditAbout.h \
+    ../../include/git-revision.h
+
+SOURCES = PHelp.cpp \ 
+    PTextEdit.cpp \
+    PSubTextEdit.cpp \
+    PAdmin.cpp \
+    PFindDialog.cpp \
+    PReplaceDialog.cpp \
+    PReplaceConfirmationDialog.cpp \
+    PFitOutputHandler.cpp \
+    PDumpOutputHandler.cpp \
+    PPrefsDialog.cpp \
+    PGetMusrFTOptionsDialog.cpp \
+    PGetTitleBlockDialog.cpp \ 
+    PGetParameterBlockDialog.cpp \
+    PGetTheoryBlockDialog.cpp \
+    PGetFunctionsBlockDialog.cpp \
+    PGetAsymmetryRunBlockDialog.cpp \
+    PGetSingleHistoRunBlockDialog.cpp \
+    PGetNonMusrRunBlockDialog.cpp \
+    PGetFourierBlockDialog.cpp \
+    PGetPlotBlockDialog.cpp \
+    PMsr2DataDialog.cpp \
+    PChangeDefaultPathsDialog.cpp \
+    PMusrEditAbout.cpp \
+    main.cpp 
+
+FORMS = forms/PFindDialog.ui \
+    forms/PReplaceDialog.ui \
+    forms/PReplaceConfirmationDialog.ui \
+    forms/PMusrEditAbout.ui \
+    forms/PPrefsDialog.ui \
+    forms/PGetMusrFTOptionsDialog.ui \
+    forms/PGetTitleBlockDialog.ui \
+    forms/PGetParameterBlockDialog.ui \
+    forms/PGetTheoryBlockDialog.ui \
+    forms/PGetFunctionsBlockDialog.ui \
+    forms/PGetAsymmetryRunBlockDialog.ui \
+    forms/PGetSingleHistoRunBlockDialog.ui \
+    forms/PGetNonMusrRunBlockDialog.ui \
+    forms/PGetFourierBlockDialog.ui \
+    forms/PGetPlotBlockDialog.ui \
+    forms/PMsr2DataDialog.ui \
+    forms/PChangeDefaultPathsDialog.ui
+
+RESOURCES = musredit.qrc
+
+macx:ICON = icons/musredit.icns
+
diff --git a/src/musredit_qt6/musredit/musredit.qrc b/src/musredit_qt6/musredit/musredit.qrc
new file mode 100644
index 00000000..fe4de151
--- /dev/null
+++ b/src/musredit_qt6/musredit/musredit.qrc
@@ -0,0 +1,70 @@
+<RCC>
+    <qresource prefix="/">
+        <file>icons/edit-copy-plain.svg</file>
+        <file>icons/edit-copy-dark.svg</file>
+        <file>icons/edit-cut-plain.svg</file>
+        <file>icons/edit-cut-dark.svg</file>
+        <file>icons/edit-find-plain.svg</file>
+        <file>icons/edit-find-dark.svg</file>
+        <file>icons/go-next-use-plain.svg</file>
+        <file>icons/go-next-use-dark.svg</file>
+        <file>icons/edit-paste-plain.svg</file>
+        <file>icons/edit-paste-dark.svg</file>
+        <file>icons/go-previous-use-plain.svg</file>
+        <file>icons/go-previous-use-dark.svg</file>
+        <file>icons/edit-redo-plain.svg</file>
+        <file>icons/edit-redo-dark.svg</file>
+        <file>icons/edit-undo-plain.svg</file>
+        <file>icons/edit-undo-dark.svg</file>
+        <file>icons/document-new-plain.svg</file>
+        <file>icons/document-new-dark.svg</file>
+        <file>icons/document-open-plain.svg</file>
+        <file>icons/document-open-dark.svg</file>
+        <file>icons/document-print-plain.svg</file>
+        <file>icons/document-print-dark.svg</file>
+        <file>icons/view-refresh-plain.svg</file>
+        <file>icons/view-refresh-dark.svg</file>
+        <file>icons/document-save-plain.svg</file>
+        <file>icons/document-save-dark.svg</file>
+        <file>icons/musrWiz-32x32.svg</file>
+        <file>icons/musrWiz-32x32-dark.svg</file>
+        <file>icons/musrchisq-plain.svg</file>
+        <file>icons/musrchisq-dark.svg</file>
+        <file>icons/musrfit-plain.svg</file>
+        <file>icons/musrfit-dark.svg</file>
+        <file>icons/musrfit-help-plain.svg</file>
+        <file>icons/musrfit-help-dark.svg</file>
+        <file>icons/msr2data-plain.svg</file>
+        <file>icons/msr2data-dark.svg</file>
+        <file>icons/musrprefs-plain.svg</file>
+        <file>icons/musrprefs-dark.svg</file>
+        <file>icons/musrswap-plain.svg</file>
+        <file>icons/musrswap-dark.svg</file>
+        <file>icons/musrStep-32x32.svg</file>
+        <file>icons/musrStep-32x32-dark.svg</file>
+        <file>icons/musrt0-plain.svg</file>
+        <file>icons/musrt0-dark.svg</file>
+        <file>icons/musrview-plain.svg</file>
+        <file>icons/musrview-dark.svg</file>
+        <file>icons/musrFT-plain.svg</file>
+        <file>icons/musrFT-dark.svg</file>
+        <file>icons/musrdump-plain.svg</file>
+        <file>icons/musrdump-dark.svg</file>
+        <file>icons/mupp-plain.svg</file>
+        <file>icons/mupp-dark.svg</file>
+        <file>latex_images/abragam.png</file>
+        <file>latex_images/asymmetry.png</file>
+        <file>latex_images/bessel.png</file>
+        <file>latex_images/combiLGKT.png</file>
+        <file>latex_images/generalExp.png</file>
+        <file>latex_images/internalBessel.png</file>
+        <file>latex_images/internalField.png</file>
+        <file>latex_images/polynom.png</file>
+        <file>latex_images/simpleExp.png</file>
+        <file>latex_images/simpleGauss.png</file>
+        <file>latex_images/statExpKT.png</file>
+        <file>latex_images/statGssKT.png</file>
+        <file>latex_images/tfCos.png</file>
+        <file>musredit_startup.xml.in</file>
+    </qresource>
+</RCC>
diff --git a/src/musredit_qt6/musredit/musredit_startup.xml.in b/src/musredit_qt6/musredit/musredit_startup.xml.in
new file mode 100644
index 00000000..5e657266
--- /dev/null
+++ b/src/musredit_qt6/musredit/musredit_startup.xml.in
@@ -0,0 +1,263 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<musredit_startup xmlns="http://lmu.web.psi.ch/musrfit/user/MUSR/MusrGui.html">
+  <comment>
+    This is handling default setting parameters for the musredit.
+  </comment>
+  <general>
+    <exec_path>@prefix@/bin</exec_path>
+    <default_save_path>./</default_save_path>
+    <msr_default_file_path>@DOCDIR@/templates</msr_default_file_path>
+    <timeout>3600</timeout>
+    <keep_minuit2_output>n</keep_minuit2_output>
+    <dump_ascii>n</dump_ascii>
+    <dump_root>n</dump_root>
+    <title_from_data_file>y</title_from_data_file>
+    <chisq_per_run_block>n</chisq_per_run_block>
+    <estimate_n0>y</estimate_n0>
+    <musrview_show_fourier>n</musrview_show_fourier>
+    <musrview_show_avg>n</musrview_show_avg>
+    <musrview_show_one_to_one>n</musrview_show_one_to_one>
+    <enable_musrt0>y</enable_musrt0>
+    <dark_theme_icons_menu>n</dark_theme_icons_menu>
+    <dark_theme_icons_toolbar>n</dark_theme_icons_toolbar>
+  </general>
+  <recent_files>
+    <path_file_name>@DOCDIR@/examples/test-histo-PSI-BIN.msr</path_file_name>
+  </recent_files>
+  <help_section>
+    <musr_web_main>file://@DOCDIR@/html/index.html</musr_web_main>
+    <musr_web_title>file://@DOCDIR@/html/user-manual.html#the-title</musr_web_title>
+    <musr_web_parameters>file://@DOCDIR@/html/user-manual.html#the-fitparameter-block</musr_web_parameters>
+    <musr_web_theory>file://@DOCDIR@/html/user-manual.html#the-theory-block</musr_web_theory>
+    <musr_web_functions>file://@DOCDIR@/html/user-manual.html#the-functions-block</musr_web_functions>
+    <musr_web_run>file://@DOCDIR@/html/user-manual.html#the-run-block</musr_web_run>
+    <musr_web_command>file://@DOCDIR@/html/user-manual.html#the-commands-block</musr_web_command>
+    <musr_web_fourier>file://@DOCDIR@/html/user-manual.html#the-fourier-block</musr_web_fourier>
+    <musr_web_plot>file://@DOCDIR@/html/user-manual.html#the-plot-block</musr_web_plot>
+    <musr_web_statistic>file://@DOCDIR@/html/user-manual.html#the-statistic-block</musr_web_statistic>
+    <musr_web_msr2data>file://@DOCDIR@/html/msr2data.html</musr_web_msr2data>
+    <musr_web_musrFT>file://@DOCDIR@/html/user-manual.html#musrft</musr_web_musrFT>
+  </help_section>
+  <font_settings>
+    <font_name>Monospace</font_name>
+    <font_size>12</font_size>
+  </font_settings>
+  <msr_file_defaults>
+    <beamline>mue4</beamline>
+    <institute>psi</institute>
+    <file_format>root-npp</file_format>
+    <lifetime_correction>y</lifetime_correction>
+  </msr_file_defaults>
+  <msr2data_defaults>
+    <chain_fit>y</chain_fit>
+    <write_data_header>y</write_data_header>
+    <ignore_data_header_info>n</ignore_data_header_info>
+    <keep_minuit2_output>n</keep_minuit2_output>
+    <write_column_data>n</write_column_data>
+    <recreate_data_file>n</recreate_data_file>
+    <open_file_after_fitting>y</open_file_after_fitting>
+    <create_msr_file_only>n</create_msr_file_only>
+    <fit_only>n</fit_only>
+    <global>n</global>
+    <global_plus>n</global_plus>
+  </msr2data_defaults>
+  <func_pixmap_path>@DOCDIR@/latex_images</func_pixmap_path>
+  <theory_functions>
+    <func>
+      <name>asymmetry</name>
+      <comment></comment>
+      <label>Asymmetry</label>
+      <pixmap>asymmetry.png</pixmap>
+      <params>1</params>
+    </func>
+    <func>
+      <name>simplExpo</name>
+      <comment>(rate)</comment>
+      <label>simple Exp</label>
+      <pixmap>simpleExp.png</pixmap>
+      <params>1</params>
+    </func>
+    <func>
+      <name>generExpo</name>
+      <comment>(rate exponent)</comment>
+      <label>general Exp</label>
+      <pixmap>generalExp.png</pixmap>
+      <params>2</params>
+    </func>
+    <func>
+      <name>simpleGss</name>
+      <comment>(rate)</comment>
+      <label>simple Gauss</label>
+      <pixmap>simpleGauss.png</pixmap>
+      <params>1</params>
+    </func>
+    <func>
+      <name>statGssKT</name>
+      <comment>(rate)</comment>
+      <label>static Gauss KT</label>
+      <pixmap>statGssKT.png</pixmap>
+      <params>1</params>
+    </func>
+    <func>
+      <name>statGssKTLF</name>
+      <comment>(frequency damping)</comment>
+      <label>static Gauss KT LF</label>
+      <pixmap></pixmap>
+      <params>2</params>
+    </func>
+    <func>
+      <name>dynGssKTLF</name>
+      <comment>(frequency damping hopping-rate)</comment>
+      <label>dynamic Gauss KT LF</label>
+      <pixmap></pixmap>
+      <params>3</params>
+    </func>
+    <func>
+      <name>statExpKT</name>
+      <comment>(rate)</comment>
+      <label>static Lorentz KT</label>
+      <pixmap>statExpKT.png</pixmap>
+      <params>1</params>
+    </func>
+    <func>
+      <name>statExpKTLF</name>
+      <comment>(frequency damping)</comment>
+      <label>static Lorentz KT LF</label>
+      <pixmap></pixmap>
+      <params>2</params>
+    </func>
+    <func>
+      <name>dynExpKTLF</name>
+      <comment>(frequency damping hopping-rate)</comment>
+      <label>dynamic Lorentz KT LF</label>
+      <pixmap></pixmap>
+      <params>3</params>
+    </func>
+    <func>
+      <name>combiLGKT</name>
+      <comment>(lorentzRate gaussRate)</comment>
+      <label>combined Lorentz-Gauss KT</label>
+      <pixmap>combiLGKT.png</pixmap>
+      <params>2</params>
+    </func>
+    <func>
+      <name>strKT</name>
+      <comment>(rate beta)</comment>
+      <label>stretched Kubo-Toyabe</label>
+      <pixmap></pixmap>
+      <params>2</params>
+    </func>
+    <func>
+      <name>spinGlass</name>
+      <comment>(rate hopping-rate order)</comment>
+      <label>zero field spin glass function</label>
+      <pixmap></pixmap>
+      <params>3</params>
+    </func>
+    <func>
+      <name>rdAnisoHf</name>
+      <comment>(frequency rate)</comment>
+      <label>random anisotropic hyperfine function</label>
+      <pixmap></pixmap>
+      <params>2</params>
+    </func>
+    <func>
+      <name>abragam</name>
+      <comment>(rate hopping-rate)</comment>
+      <label>Abragam</label>
+      <pixmap>abragam.png</pixmap>
+      <params>2</params>
+    </func>
+    <func>
+      <name>TFieldCos</name>
+      <comment>(phase frequency)</comment>
+      <label>TF cos</label>
+      <pixmap>tfCos.png</pixmap>
+      <params>2</params>
+    </func>
+    <func>
+      <name>internFld</name>
+      <comment>(fraction phase frequency Trate Lrate)</comment>
+      <label>internal Lorentz field</label>
+      <pixmap>internalField.png</pixmap>
+      <params>5</params>
+    </func>
+    <func>
+      <name>internFldGK</name>
+      <comment>(fraction frequency Trate Lrate beta)</comment>
+      <label>internal field, Gaussian broadened</label>
+      <pixmap>internalFieldGK.png</pixmap>
+      <params>5</params>
+    </func>
+    <func>
+      <name>internFldLL</name>
+      <comment>(fraction frequency Trate Lrate)</comment>
+      <label>internal field, Lorentzian broadened</label>
+      <pixmap>internalFieldLL.png</pixmap>
+      <params>4</params>
+    </func>
+    <func>
+      <name>bessel</name>
+      <comment>(phase frequency)</comment>
+      <label>spherical Bessel 0th order</label>
+      <pixmap>bessel.png</pixmap>
+      <params>2</params>
+    </func>
+    <func>
+      <name>internBsl</name>
+      <comment>(fraction phase frequency Trate Lrate)</comment>
+      <label>static internal Bessel</label>
+      <pixmap>internalBessel.png</pixmap>
+      <params>5</params>
+    </func>
+    <func>
+      <name>skewedGss</name>
+      <comment>(phase frequency rate_m rate_p)</comment>
+      <label>skewed Gaussian</label>
+      <pixmap></pixmap>
+      <params>4</params>
+    </func>
+    <func>
+      <name>staticNKZF</name>
+      <comment>(damping_D0 R_b)</comment>
+      <label>static Noakes-Kalvius ZF</label>
+      <pixmap></pixmap>
+      <params>2</params>
+    </func>
+    <func>
+      <name>staticNKTF</name>
+      <comment>(phase frequency damping_D0 R_b)</comment>
+      <label>static Noakes-Kalvius TF</label>
+      <pixmap></pixmap>
+      <params>4</params>
+    </func>
+    <func>
+      <name>dynamicNKZF</name>
+      <comment>(damping_D0 R_b nu_c)</comment>
+      <label>dynamic Noakes-Kalvius ZF</label>
+      <pixmap></pixmap>
+      <params>3</params>
+    </func>
+    <func>
+      <name>dynamicNKTF</name>
+      <comment>(phase frequency damping_D0 R_b nu_c)</comment>
+      <label>dynamic Noakes-Kalvius TF</label>
+      <pixmap></pixmap>
+      <params>5</params>
+    </func>
+    <func>
+      <name>polynom</name>
+      <comment>(tshift p0 p1 ... pn)</comment>
+      <label>polynom</label>
+      <pixmap>polynom.png</pixmap>
+      <params>4</params>
+    </func>
+    <func>
+      <name>userFcn</name>
+      <comment></comment>
+      <label>user function</label>
+      <pixmap></pixmap>
+      <params>0</params>
+    </func>
+  </theory_functions>
+</musredit_startup>