diff --git a/csaxs_bec/bec_ipython_client/plugins/LamNI/lamni_optics_mixin.py b/csaxs_bec/bec_ipython_client/plugins/LamNI/lamni_optics_mixin.py
index 2437bf9..f40fd88 100644
--- a/csaxs_bec/bec_ipython_client/plugins/LamNI/lamni_optics_mixin.py
+++ b/csaxs_bec/bec_ipython_client/plugins/LamNI/lamni_optics_mixin.py
@@ -172,7 +172,7 @@ class LamNIOpticsMixin:
 
     def leye_out(self):
         self.loptics_in()
-        dev.omnyfsh.fshopen()
+        dev.fsh.fshopen()
         leyey_out = self._get_user_param_safe("leyey", "out")
         umv(dev.leyey, leyey_out)
 
diff --git a/csaxs_bec/bec_ipython_client/plugins/flomni/flomni_optics_mixin.py b/csaxs_bec/bec_ipython_client/plugins/flomni/flomni_optics_mixin.py
index 4e9e688..510294b 100644
--- a/csaxs_bec/bec_ipython_client/plugins/flomni/flomni_optics_mixin.py
+++ b/csaxs_bec/bec_ipython_client/plugins/flomni/flomni_optics_mixin.py
@@ -16,7 +16,7 @@ class FlomniOpticsMixin:
         return param.get(var)
 
     def feye_out(self):
-        dev.omnyfsh.fshclose()
+        dev.fsh.fshclose()
         self.foptics_in()
         self.flomnigui_show_xeyealign()
         self.xrayeye_update_frame()
diff --git a/csaxs_bec/bec_ipython_client/plugins/flomni/x_ray_eye_align.py b/csaxs_bec/bec_ipython_client/plugins/flomni/x_ray_eye_align.py
index e1fc704..70dea21 100644
--- a/csaxs_bec/bec_ipython_client/plugins/flomni/x_ray_eye_align.py
+++ b/csaxs_bec/bec_ipython_client/plugins/flomni/x_ray_eye_align.py
@@ -57,14 +57,14 @@ class XrayEyeAlign:
 
         self.gui.on_live_view_enabled(True)
 
-        dev.omnyfsh.fshopen()
+        dev.fsh.fshopen()
 
         time.sleep(0.5)
         # stop live view
         if not keep_shutter_open:
             self.gui.on_live_view_enabled(False)
             time.sleep(0.1)
-            dev.omnyfsh.fshclose()
+            dev.fsh.fshclose()
             print("Received new frame.")
         else:
             print("Staying in live view, shutter is and remains open!")
@@ -233,7 +233,7 @@ class XrayEyeAlign:
 
         if keep_shutter_open:
             if self.flomni.OMNYTools.yesno("Close the shutter now?", "y"):
-                dev.omnyfsh.fshclose()
+                dev.fsh.fshclose()
                 self.gui.on_live_view_enabled(False)
                 print("setting 'XOMNYI-XEYE-ACQ:0'")
 
diff --git a/csaxs_bec/bec_ipython_client/plugins/omny/omny_optics_mixin.py b/csaxs_bec/bec_ipython_client/plugins/omny/omny_optics_mixin.py
index e9ff998..d30a224 100644
--- a/csaxs_bec/bec_ipython_client/plugins/omny/omny_optics_mixin.py
+++ b/csaxs_bec/bec_ipython_client/plugins/omny/omny_optics_mixin.py
@@ -48,7 +48,7 @@ class OMNYOpticsMixin:
         dev.oeyez.controller.socket_put_confirmed("axspeed[7]=10000")
 
     def oeye_out(self):
-        dev.omnyfsh.fshclose()
+        dev.fsh.fshclose()
         if self.OMNYTools.yesno("Did you move in the optics?"):
             umv(dev.oeyez, -2)
             self._oeyey_mv(-60.3)
diff --git a/csaxs_bec/bec_widgets/widgets/xray_eye/x_ray_eye.py b/csaxs_bec/bec_widgets/widgets/xray_eye/x_ray_eye.py
index cde9f88..f5fd0af 100644
--- a/csaxs_bec/bec_widgets/widgets/xray_eye/x_ray_eye.py
+++ b/csaxs_bec/bec_widgets/widgets/xray_eye/x_ray_eye.py
@@ -154,7 +154,7 @@ class XRayEye(BECWidget, QWidget):
 
         # Connection to redis endpoints
         self.bec_dispatcher.connect_slot(
-            self.getting_shutter_status, MessageEndpoints.device_readback("omnyfsh")
+            self.getting_shutter_status, MessageEndpoints.device_readback("fsh")
         )
         self.bec_dispatcher.connect_slot(
             self.getting_camera_status, MessageEndpoints.device_read_configuration(CAMERA[0])
@@ -342,7 +342,7 @@ class XRayEye(BECWidget, QWidget):
 
     def _init_gui_trigger(self):
         self.dev.omny_xray_gui.read()
-        self.dev.omnyfsh.read()
+        self.dev.fsh.read()
 
     ################################################################################
     # Device Connection logic
@@ -451,15 +451,15 @@ class XRayEye(BECWidget, QWidget):
         logger.info(f"Shutter changed from GUI to: {enabled}")
         self.shutter_toggle.blockSignals(True)
         if enabled:
-            self.dev.omnyfsh.fshopen()
+            self.dev.fsh.fshopen()
         else:
-            self.dev.omnyfsh.fshclose()
+            self.dev.fsh.fshclose()
         # self.shutter_toggle.checked = enabled
         self.shutter_toggle.blockSignals(False)
 
     @SafeSlot(dict, dict)
     def getting_shutter_status(self, data, meta):
-        shutter_open = bool(data.get("signals").get("omnyfsh_shutter").get("value"))
+        shutter_open = bool(data.get("signals").get("fsh_shutter").get("value"))
         self.shutter_toggle.blockSignals(True)
         self.shutter_toggle.checked = shutter_open
         self.shutter_toggle.blockSignals(False)
@@ -567,7 +567,7 @@ class XRayEye(BECWidget, QWidget):
             )
 
         self.bec_dispatcher.disconnect_slot(
-            self.getting_shutter_status, MessageEndpoints.device_readback("omnyfsh")
+            self.getting_shutter_status, MessageEndpoints.device_readback("fsh")
         )
         self.bec_dispatcher.disconnect_slot(
             self.getting_camera_status, MessageEndpoints.device_read_configuration(CAMERA[0])
diff --git a/csaxs_bec/device_configs/ptycho_flomni.yaml b/csaxs_bec/device_configs/ptycho_flomni.yaml
index dbfd9ff..78296a1 100644
--- a/csaxs_bec/device_configs/ptycho_flomni.yaml
+++ b/csaxs_bec/device_configs/ptycho_flomni.yaml
@@ -477,15 +477,16 @@ flomni_temphum:
   readoutPriority: baseline
 # ############################################################
 # ########## OMNY / flOMNI / LamNI fast shutter ##############
+# REPLACED BY SIMULATED BEAMLINE DEVICE !!!!!!!!!!!!!!!!
 # ############################################################
-omnyfsh:
-  description: omnyfsh connects to  fast shutter at X12 if device fsh exists
-  deviceClass: csaxs_bec.devices.omny.shutter.OMNYFastShutter
-  deviceConfig: {}
-  enabled: true
-  onFailure: buffer
-  readOnly: false
-  readoutPriority: baseline
+# omnyfsh:
+#   description: omnyfsh connects to  fast shutter at X12 if device fsh exists
+#   deviceClass: csaxs_bec.devices.omny.shutter.OMNYFastShutter
+#   deviceConfig: {}
+#   enabled: true
+#   onFailure: buffer
+#   readOnly: false
+#   readoutPriority: baseline
 ############################################################
 #################### GUI Signals ###########################
 ############################################################
diff --git a/csaxs_bec/device_configs/simulated_omny/__init__.py b/csaxs_bec/device_configs/simulated_omny/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/csaxs_bec/device_configs/simulated_omny/simulated_bl_endstation.yaml b/csaxs_bec/device_configs/simulated_omny/simulated_bl_endstation.yaml
new file mode 100644
index 0000000..2ac5201
--- /dev/null
+++ b/csaxs_bec/device_configs/simulated_omny/simulated_bl_endstation.yaml
@@ -0,0 +1,21 @@
+ddg1:
+  description: Simulated main delay Generator for triggering 
+  deviceClass: csaxs_bec.devices.sim.simulated_beamline_devices.SimulatedDDG1
+  enabled: true
+  deviceConfig:
+    prefix: 'X12SA-CPCL-DDG1:'
+  onFailure: raise
+  readOnly: false
+  readoutPriority: baseline
+  softwareTrigger: true
+fsh:
+  description: Simulated fast shutter manual control and readback
+  deviceClass: csaxs_bec.devices.sim.simulated_beamline_devices.cSAXSSimulatedFastShutter
+  deviceConfig:
+    prefix: 'X12SA-ES1-TTL:'
+  onFailure: raise
+  enabled: true
+  readoutPriority: monitored
+
+flomni:
+ - !include ../ptycho_flomni.yaml
\ No newline at end of file
diff --git a/csaxs_bec/devices/sim/__init__.py b/csaxs_bec/devices/sim/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/csaxs_bec/devices/sim/simulated_beamline_devices.py b/csaxs_bec/devices/sim/simulated_beamline_devices.py
new file mode 100644
index 0000000..d359d6f
--- /dev/null
+++ b/csaxs_bec/devices/sim/simulated_beamline_devices.py
@@ -0,0 +1,59 @@
+"""This module contains simulated versions of beamline devices relevant for running simulated experiments."""
+
+from __future__ import annotations
+
+from bec_lib.logger import bec_logger
+from ophyd import Device
+from ophyd_devices import StatusBase
+from ophyd_devices.tests.utils import patched_device
+
+from csaxs_bec.devices.epics.delay_generator_csaxs.ddg_1 import DDG1
+from csaxs_bec.devices.epics.fast_shutter import cSAXSFastEpicsShutter
+
+logger = bec_logger.logger
+
+
+class cSAXSSimulatedFastShutter(Device):
+    """
+    Simulated version of the cSAXS Fast Shutter.
+
+    To set up initial signal to specific values, please use the example below:
+    fsh.shutter._read_pv.mock_data = 1 #
+    -> with 'shutter' being a signal of the shutter device
+
+    """
+
+    def __new__(cls, *args, **kwargs):
+        with patched_device(cSAXSFastEpicsShutter, *args, **kwargs) as fsh:
+            # fsh.shutter._read_pv.mock_data = 1 # Set mock data if needed
+            return fsh
+
+
+class DDG1WithPatchedStage(DDG1):
+    """
+    Simulated version of the DDG1 with patched stage method.
+    We inherit here to be able to overwrite the on_stage method if needed, without compromising the rest of the device's functionality.
+    """
+
+    def on_stage(self):
+        logger.warning(
+            f"Staging of {self.name}. This is a simulated device of {self.__class__.__name__}."
+        )
+        super().on_stage()
+
+    def on_trigger(self):
+        """
+        We overwrite and patch the on_trigger method. This resolves immediately now and
+        sets the status to finished, instead of waiting for the trigger logic to complete.
+        """
+        # Change logic if needed
+        status = StatusBase(obj=self)
+        status.set_finished()
+        return status
+
+
+class SimulatedDDG1(Device):
+
+    def __new__(cls, *args, **kwargs):
+        with patched_device(DDG1WithPatchedStage, *args, **kwargs) as ddg1:
+            return ddg1