diff --git a/CMakeLists.txt b/CMakeLists.txt
index ab0c1dac6..a1a568e98 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -42,6 +42,7 @@ option (SLS_USE_TESTS "TESTS" OFF)
 option (SLS_USE_INTEGRATION_TESTS "Integration Tests" OFF)
 option(SLS_USE_SANITIZER "Sanitizers for debugging" OFF)
 option(SLS_USE_PYTHON "Python bindings" OFF)
+option(SLS_BUILD_DOCS "Documentations" OFF)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 if (NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
@@ -182,10 +183,11 @@ configure_file( .clang-tidy
 )
 
 
-add_subdirectory(sample)
-
-add_subdirectory(docs)
+#add_subdirectory(sample)
 
+if(SLS_BUILD_DOCS)
+    add_subdirectory(docs)
+endif(SLS_BUILD_DOCS)
 
 
 
diff --git a/slsDetectorSoftware/include/Detector.h b/slsDetectorSoftware/include/Detector.h
index 28e23b252..ccea0e58e 100644
--- a/slsDetectorSoftware/include/Detector.h
+++ b/slsDetectorSoftware/include/Detector.h
@@ -1089,14 +1089,14 @@ class Detector {
     /** [Eiger] If it is set, it resets chips completely (else partially) before an acquisition TODO: if it makes sense */
     void setCounterBit(bool value, Positions pos = {});
 
-    /** [Gotthard, CTB] subset modules not allowed */
-    //Result<std::vector<defs::ROI>> getROI(Positions pos = {}) const;
+    /** [Gotthard, CTB]*/
+    Result<std::vector<defs::ROI>> getROI(Positions pos = {}) const;
     /** 
      * [Gotthard Options: Only a single chip or all chips, only 1 ROI allowed]
      * [CTB: multiple ROIs allowed] 
      * subset modules not allowed 
      */
-    //void setROI(std::vector<defs::ROI> value, Positions pos = {});
+    void setROI(std::vector<defs::ROI> value, Positions pos = {});
 
     /** [CTB]*/
     Result<uint32_t> getADCEnableMask(Positions pos = {}) const;
diff --git a/slsDetectorSoftware/include/Result.h b/slsDetectorSoftware/include/Result.h
index 9d5f2ae7e..54d19b1a5 100644
--- a/slsDetectorSoftware/include/Result.h
+++ b/slsDetectorSoftware/include/Result.h
@@ -98,6 +98,11 @@ template <class T, class Allocator = std::allocator<T>> class Result {
         vec.push_back(std::forward<V>(value));
     }
 
+    template <typename... Args>
+    auto emplace_back(Args &&... args) -> decltype(vec.emplace_back(args...)){
+        vec.emplace_back(std::forward<Args>(args)...);
+    }
+
     auto operator[](size_type pos) -> decltype(vec[pos]) { return vec[pos]; }
     const_reference operator[](size_type pos) const { return vec[pos]; }
 
diff --git a/slsDetectorSoftware/src/Detector.cpp b/slsDetectorSoftware/src/Detector.cpp
index eaa654142..a8bd836e6 100644
--- a/slsDetectorSoftware/src/Detector.cpp
+++ b/slsDetectorSoftware/src/Detector.cpp
@@ -85,7 +85,10 @@ defs::coordinates Detector::getNumberOfDetectors() const {
 }
 
 Result<defs::coordinates> Detector::getNumberOfChannels(Positions pos) const {
-    if (pos.empty() || (pos.size() == 1 && pos[0] == -1)) {// TODO: also check condition that pos.size == pimpl->size()?? for other occurences as well
+    if (pos.empty() ||
+        (pos.size() == 1 &&
+         pos[0] == -1)) { // TODO: also check condition that pos.size ==
+                          // pimpl->size()?? for other occurences as well
         return {pimpl->getNumberOfChannels()};
     }
     return pimpl->Parallel(&slsDetector::getNumberOfChannels, pos);
@@ -636,88 +639,99 @@ void Detector::setDAC(int value, defs::dacIndex index, bool mV, Positions pos) {
     pimpl->Parallel(&slsDetector::setDAC, pos, value, index, mV);
 }
 
-    Result<defs::externalCommunicationMode> Detector::getTimingMode(Positions pos) const {
-        return pimpl->Parallel(&slsDetector::setExternalCommunicationMode, pos, defs::GET_EXTERNAL_COMMUNICATION_MODE);
-    }
+Result<defs::externalCommunicationMode>
+Detector::getTimingMode(Positions pos) const {
+    return pimpl->Parallel(&slsDetector::setExternalCommunicationMode, pos,
+                           defs::GET_EXTERNAL_COMMUNICATION_MODE);
+}
 
-    void Detector::setTimingMode(defs::externalCommunicationMode value, Positions pos) {
-        pimpl->Parallel(&slsDetector::setExternalCommunicationMode, pos, value);
-    }
+void Detector::setTimingMode(defs::externalCommunicationMode value,
+                             Positions pos) {
+    pimpl->Parallel(&slsDetector::setExternalCommunicationMode, pos, value);
+}
 
-    Result<defs::externalSignalFlag> Detector::getExternalSignalFlags(Positions pos) const {
-        return pimpl->Parallel(&slsDetector::setExternalSignalFlags, pos, defs::GET_EXTERNAL_SIGNAL_FLAG);
-    }
+Result<defs::externalSignalFlag>
+Detector::getExternalSignalFlags(Positions pos) const {
+    return pimpl->Parallel(&slsDetector::setExternalSignalFlags, pos,
+                           defs::GET_EXTERNAL_SIGNAL_FLAG);
+}
 
-    void Detector::setExternalSignalFlags(defs::externalSignalFlag value, Positions pos) {
-        pimpl->Parallel(&slsDetector::setExternalSignalFlags, pos, value);
-    }
+void Detector::setExternalSignalFlags(defs::externalSignalFlag value,
+                                      Positions pos) {
+    pimpl->Parallel(&slsDetector::setExternalSignalFlags, pos, value);
+}
 
-    Result<bool> Detector::getParallelMode(Positions pos) const {
-        auto res = pimpl->Parallel(&slsDetector::setReadOutFlags, pos, defs::GET_READOUT_FLAGS);
-        Result <bool> booleanRes; 
-        for (unsigned int i = 0; i < res.size(); ++i) {
-            booleanRes[i] = (res[i] & defs::PARALLEL) ? true : false;
+Result<bool> Detector::getParallelMode(Positions pos) const {
+    auto res = pimpl->Parallel(&slsDetector::setReadOutFlags, pos,
+                               defs::GET_READOUT_FLAGS);
+    Result<bool> booleanRes;
+    for (unsigned int i = 0; i < res.size(); ++i) {
+        booleanRes[i] = (res[i] & defs::PARALLEL) ? true : false;
+    }
+    return booleanRes;
+}
+
+void Detector::setParallelMode(bool value, Positions pos) {
+    pimpl->Parallel(&slsDetector::setReadOutFlags, pos,
+                    value ? defs::PARALLEL : defs::NONPARALLEL);
+}
+
+Result<bool> Detector::getOverFlowMode(Positions pos) const {
+    auto res = pimpl->Parallel(&slsDetector::setReadOutFlags, pos,
+                               defs::GET_READOUT_FLAGS);
+    Result<bool> booleanRes;
+    for (unsigned int i = 0; i < res.size(); ++i) {
+        booleanRes[i] = (res[i] & defs::SHOW_OVERFLOW) ? true : false;
+    }
+    return booleanRes;
+}
+
+void Detector::setOverFlowMode(bool value, Positions pos) {
+    pimpl->Parallel(&slsDetector::setReadOutFlags, pos,
+                    value ? defs::SHOW_OVERFLOW : defs::NOOVERFLOW);
+}
+
+Result<int> Detector::getSignalType(Positions pos) const {
+    auto res = pimpl->Parallel(&slsDetector::setReadOutFlags, pos,
+                               defs::GET_READOUT_FLAGS);
+    for (auto &it : res) {
+        if (it & defs::ANALOG_AND_DIGITAL) {
+            it = 2;
+        } else if (it & defs::DIGITAL_ONLY) {
+            it = 1;
+        } else if (it == defs::NORMAL_READOUT) {
+            it = 0;
+        } else {
+            throw RuntimeError("Unknown Signal Type");
         }
-        return booleanRes;
     }
+    return res;
+}
 
-    void Detector::setParallelMode(bool value, Positions pos) {
-        pimpl->Parallel(&slsDetector::setReadOutFlags, pos, value ? defs::PARALLEL : defs::NONPARALLEL);
-    }
-
-    Result<bool> Detector::getOverFlowMode(Positions pos) const {
-        auto res = pimpl->Parallel(&slsDetector::setReadOutFlags, pos, defs::GET_READOUT_FLAGS);
-        Result <bool> booleanRes; 
-        for (unsigned int i = 0; i < res.size(); ++i) {
-            booleanRes[i] = (res[i] & defs::SHOW_OVERFLOW) ? true : false;
-        }
-        return booleanRes;
-    }
-
-    void Detector::setOverFlowMode(bool value, Positions pos) {
-        pimpl->Parallel(&slsDetector::setReadOutFlags, pos, value ? defs::SHOW_OVERFLOW : defs::NOOVERFLOW);
-    }
-
-    Result<int> Detector::getSignalType(Positions pos) const {
-        auto res = pimpl->Parallel(&slsDetector::setReadOutFlags, pos, defs::GET_READOUT_FLAGS);
-        for (auto &it : res) {
-            if (it & defs::ANALOG_AND_DIGITAL) {
-                it = 2;
-            } else if (it & defs::DIGITAL_ONLY) {
-                it = 1;
-            } else if (it == defs::NORMAL_READOUT) {
-                it = 0;
-            } else {
-                 throw RuntimeError("Unknown Signal Type");
-            }
-        }
-        return res;
-    }
-
-    void Detector::setSignalType(int value, Positions pos) {
-        defs::readOutFlags flag;
-        switch (value) {
-            case 0:
-                flag = defs::NORMAL_READOUT;
-                break;
-            case 1:
-                flag = defs::DIGITAL_ONLY;
-                break;
-            case 2:
-                flag = defs::ANALOG_AND_DIGITAL;
-                break;
-            default:
-                 throw RuntimeError("Unknown Signal Type");
-        }
-        pimpl->Parallel(&slsDetector::setReadOutFlags, pos, flag);
+void Detector::setSignalType(int value, Positions pos) {
+    defs::readOutFlags flag;
+    switch (value) {
+    case 0:
+        flag = defs::NORMAL_READOUT;
+        break;
+    case 1:
+        flag = defs::DIGITAL_ONLY;
+        break;
+    case 2:
+        flag = defs::ANALOG_AND_DIGITAL;
+        break;
+    default:
+        throw RuntimeError("Unknown Signal Type");
     }
+    pimpl->Parallel(&slsDetector::setReadOutFlags, pos, flag);
+}
 
 // Erik
 Result<bool> Detector::getInterruptSubframe(Positions pos) const {
     return pimpl->Parallel(&slsDetector::getInterruptSubframe, pos);
 }
 
-void Detector::setInterruptSubframe(const bool enable, Positions pos){
+void Detector::setInterruptSubframe(const bool enable, Positions pos) {
     pimpl->Parallel(&slsDetector::setInterruptSubframe, pos, enable);
 }
 
@@ -829,7 +843,8 @@ Result<int> Detector::getNumberofUDPInterfaces(Positions pos) const {
 
 void Detector::setNumberofUDPInterfaces(int n, Positions pos) {
     bool previouslyClientStreaming = getDataStreamingToClient();
-    bool previouslyReceiverStreaming = getDataStreamingFromReceiver(pos).squash(false);
+    bool previouslyReceiverStreaming =
+        getDataStreamingFromReceiver(pos).squash(false);
     pimpl->Parallel(&slsDetector::setNumberofUDPInterfaces, pos, n);
     // redo the zmq sockets if enabled
     if (previouslyClientStreaming) {
@@ -856,7 +871,8 @@ Result<int> Detector::getClientStreamingPort(Positions pos) const {
 
 void Detector::setClientDataStreamingInPort(int port, Positions pos) {
     if (pos.size() > 1 && pos.size() < pimpl->size()) {
-        throw RuntimeError("Cannot set client streaming port to a subset of modules");  
+        throw RuntimeError(
+            "Cannot set client streaming port to a subset of modules");
     }
     pimpl->setClientDataStreamingInPort(port, pos.empty() ? -1 : pos[0]);
 }
@@ -867,9 +883,10 @@ Result<int> Detector::getReceiverStreamingPort(Positions pos) const {
 
 void Detector::setReceiverDataStreamingOutPort(int port, Positions pos) {
     if (pos.size() > 1 && pos.size() < pimpl->size()) {
-        throw RuntimeError("Cannot set receiver streaming port to a subset of modules");  
+        throw RuntimeError(
+            "Cannot set receiver streaming port to a subset of modules");
     }
-    pimpl->setReceiverDataStreamingOutPort(port, pos.empty() ? -1 : pos[0]);    
+    pimpl->setReceiverDataStreamingOutPort(port, pos.empty() ? -1 : pos[0]);
 }
 
 Result<std::string> Detector::getClientStreamingIP(Positions pos) const {
@@ -878,7 +895,7 @@ Result<std::string> Detector::getClientStreamingIP(Positions pos) const {
 
 void Detector::setClientDataStreamingInIP(const std::string &ip,
                                           Positions pos) {
-    bool previouslyClientStreaming = getDataStreamingToClient();                                  
+    bool previouslyClientStreaming = getDataStreamingToClient();
     // TODO! probably in one call ??
     pimpl->Parallel(&slsDetector::setClientStreamingIP, pos, ip);
     if (previouslyClientStreaming) {
@@ -893,7 +910,8 @@ Result<std::string> Detector::getReceiverStreamingIP(Positions pos) const {
 
 void Detector::setReceiverDataStreamingOutIP(const std::string &ip,
                                              Positions pos) {
-    bool previouslyReceiverStreaming = getDataStreamingFromReceiver(pos).squash(false);                                          
+    bool previouslyReceiverStreaming =
+        getDataStreamingFromReceiver(pos).squash(false);
     // TODO! probably in one call
     pimpl->Parallel(&slsDetector::setReceiverStreamingIP, pos, ip);
     if (previouslyReceiverStreaming) {
@@ -962,71 +980,87 @@ void Detector::setAdditionalJsonParameter(const std::string &key,
     pimpl->Parallel(&slsDetector::setAdditionalJsonParameter, pos, key, value);
 }
 
-Result<int> Detector::getDetectorMinMaxEnergyThreshold(const bool isEmax, Positions pos) const {
-    auto res = pimpl->Parallel(&slsDetector::getAdditionalJsonParameter, pos, isEmax ? "emax" : "emin");
+Result<int> Detector::getDetectorMinMaxEnergyThreshold(const bool isEmax,
+                                                       Positions pos) const {
+    auto res = pimpl->Parallel(&slsDetector::getAdditionalJsonParameter, pos,
+                               isEmax ? "emax" : "emin");
     Result<int> intResult;
-    try{
+    try {
         for (unsigned int i = 0; i < res.size(); ++i) {
             intResult[i] = stoi(res[i]);
         }
-    } catch(...) {
-        throw RuntimeError("Cannot find or convert emin/emax string to integer");
+    } catch (...) {
+        throw RuntimeError(
+            "Cannot find or convert emin/emax string to integer");
     }
     return intResult;
 }
 
-void Detector::setDetectorMinMaxEnergyThreshold(const bool isEmax, const int value, Positions pos) {
-    pimpl->Parallel(&slsDetector::setAdditionalJsonParameter, pos, isEmax ? "emax" : "emin", std::to_string(value));
+void Detector::setDetectorMinMaxEnergyThreshold(const bool isEmax,
+                                                const int value,
+                                                Positions pos) {
+    pimpl->Parallel(&slsDetector::setAdditionalJsonParameter, pos,
+                    isEmax ? "emax" : "emin", std::to_string(value));
 }
 
 Result<int> Detector::getFrameMode(Positions pos) const {
-    auto res = pimpl->Parallel(&slsDetector::getAdditionalJsonParameter, pos, "frameMode");
+    auto res = pimpl->Parallel(&slsDetector::getAdditionalJsonParameter, pos,
+                               "frameMode");
     Result<int> intResult;
-    try{
+    try {
         for (unsigned int i = 0; i < res.size(); ++i) {
             intResult[i] = defs::getFrameModeType(res[i]);
         }
-    } catch(...) {
-        throw RuntimeError("Cannot find or convert frameMode string to integer");
+    } catch (...) {
+        throw RuntimeError(
+            "Cannot find or convert frameMode string to integer");
     }
     return intResult;
 }
 
 void Detector::setFrameMode(defs::frameModeType value, Positions pos) {
-   pimpl->Parallel(&slsDetector::setAdditionalJsonParameter, pos, "frameMode", defs::getFrameModeType(value));
+    pimpl->Parallel(&slsDetector::setAdditionalJsonParameter, pos, "frameMode",
+                    defs::getFrameModeType(value));
 }
 
 Result<int> Detector::getDetectorMode(Positions pos) const {
-    auto res = pimpl->Parallel(&slsDetector::getAdditionalJsonParameter, pos, "detectorMode");
+    auto res = pimpl->Parallel(&slsDetector::getAdditionalJsonParameter, pos,
+                               "detectorMode");
     Result<int> intResult;
-    try{
+    try {
         for (unsigned int i = 0; i < res.size(); ++i) {
             intResult[i] = defs::getDetectorModeType(res[i]);
         }
-    } catch(...) {
-        throw RuntimeError("Cannot find or convert detectorMode string to integer");
+    } catch (...) {
+        throw RuntimeError(
+            "Cannot find or convert detectorMode string to integer");
     }
     return intResult;
 }
 
 void Detector::setDetectorMode(defs::detectorModeType value, Positions pos) {
-    pimpl->Parallel(&slsDetector::setAdditionalJsonParameter, pos, "detectorMode", defs::getDetectorModeType(value));
+    pimpl->Parallel(&slsDetector::setAdditionalJsonParameter, pos,
+                    "detectorMode", defs::getDetectorModeType(value));
 }
 
 Result<int> Detector::getDigitalTestBit(Positions pos) {
-    return pimpl->Parallel(&slsDetector::digitalTest, pos, defs::DIGITAL_BIT_TEST, -1);
+    return pimpl->Parallel(&slsDetector::digitalTest, pos,
+                           defs::DIGITAL_BIT_TEST, -1);
 }
 
 Result<int> Detector::setDigitalTestBit(int value, Positions pos) {
-    return pimpl->Parallel(&slsDetector::digitalTest, pos, defs::DIGITAL_BIT_TEST, value);
+    return pimpl->Parallel(&slsDetector::digitalTest, pos,
+                           defs::DIGITAL_BIT_TEST, value);
 }
 
 Result<int> Detector::executeFirmwareTest(Positions pos) {
-    return pimpl->Parallel(&slsDetector::digitalTest, pos, defs::DETECTOR_FIRMWARE_TEST, -1);
+    return pimpl->Parallel(&slsDetector::digitalTest, pos,
+                           defs::DETECTOR_FIRMWARE_TEST, -1);
 }
 
 Result<int> Detector::executeBusTest(Positions pos) {
-    return pimpl->Parallel(&slsDetector::digitalTest, pos, defs::DETECTOR_BUS_TEST, -1);
+    return pimpl->Parallel(&slsDetector::digitalTest, pos,
+                           defs::DETECTOR_BUS_TEST, -1);
 }
 
 void Detector::loadDarkImage(const std::string &fname, Positions pos) {
@@ -1037,7 +1071,8 @@ void Detector::loadDarkImage(const std::string &fname, Positions pos) {
     if (pos.size() > 1) {
         throw RuntimeError("Cannot load dark image on a subset of modules");
     }
-    pimpl->Parallel(&slsDetector::loadImageToDetector, pos, defs::DARK_IMAGE, fname);
+    pimpl->Parallel(&slsDetector::loadImageToDetector, pos, defs::DARK_IMAGE,
+                    fname);
 }
 
 void Detector::loadGainImage(const std::string &fname, Positions pos) {
@@ -1048,21 +1083,26 @@ void Detector::loadGainImage(const std::string &fname, Positions pos) {
     if (pos.size() > 1) {
         throw RuntimeError("Cannot load gain image on a subset of modules");
     }
-    pimpl->Parallel(&slsDetector::loadImageToDetector, pos, defs::GAIN_IMAGE, fname);
+    pimpl->Parallel(&slsDetector::loadImageToDetector, pos, defs::GAIN_IMAGE,
+                    fname);
 }
 
-void Detector::getCounterMemoryBlock(const std::string &fname, bool startACQ, Positions pos) {
+void Detector::getCounterMemoryBlock(const std::string &fname, bool startACQ,
+                                     Positions pos) {
     if (pos.empty() || (pos.size() == 1 && pos[0] == -1)) {
         pimpl->writeCounterBlockFile(fname, static_cast<int>(startACQ), -1);
     }
     if (pos.size() > 1) {
-        throw RuntimeError("Cannot load get counter memory block on a subset of modules");
+        throw RuntimeError(
+            "Cannot load get counter memory block on a subset of modules");
     }
-    pimpl->Parallel(&slsDetector::writeCounterBlockFile, pos, fname, static_cast<int>(startACQ));
+    pimpl->Parallel(&slsDetector::writeCounterBlockFile, pos, fname,
+                    static_cast<int>(startACQ));
 }
 
 void Detector::resetCounterBlock(bool startACQ, Positions pos) {
-    pimpl->Parallel(&slsDetector::resetCounterBlock, pos, static_cast<int>(startACQ));
+    pimpl->Parallel(&slsDetector::resetCounterBlock, pos,
+                    static_cast<int>(startACQ));
 }
 
 Result<bool> Detector::getCounterBit(Positions pos) const {
@@ -1072,33 +1112,42 @@ Result<bool> Detector::getCounterBit(Positions pos) const {
 void Detector::setCounterBit(bool value, Positions pos) {
     pimpl->Parallel(&slsDetector::setCounterBit, pos, value);
 }
-/*TODO:
+
 Result<std::vector<defs::ROI>> Detector::getROI(Positions pos) const {
-    int n = 0;
-    if (pos.empty() || (pos.size() == 1 && pos[0] == -1)) {
-        auto res = pimpl->getROI(n, -1);
-        std::vector<defs::ROI> arrayRes(n);
-        std::copy_n(res, n * sizeof(defs::ROI), arrayRes.begin());
-        return arrayRes;
-    } else if (pos.size() > 1) {
-        throw RuntimeError("Cannot get roi from a subset of modules");  
-    } else {
-        auto res = pimpl->Parallel(&slsDetector::getROI, pos, n);
-        std::vector<defs::ROI> arrayRes(n);
-        std::copy_n(res, n * sizeof(defs::ROI), arrayRes.begin());
-        return arrayRes;
+    //vector holding module_id for the modules that should be read
+    const std::vector<int> id_vec = [&]() {
+        if (pos.empty() || (pos.size() == 1 && pos[0] == -1)){
+            std::vector<int> tmp;
+            for(size_t i=0; i!= pimpl->size(); ++i)
+                tmp.push_back(i);
+            return tmp;
+        }else{
+            return pos;
+        }
+    }();
+
+    //values to return
+    Result<std::vector<defs::ROI>> res;
+
+    //for each detector id get the ROI
+    for (const auto& i :id_vec){
+        int n = 0;
+        auto ptr = pimpl->getROI(n, i);
+        res.emplace_back(ptr, ptr+n);
     }
+    return res;
 }
 
 void Detector::setROI(std::vector<defs::ROI> value, Positions pos) {
     if (pos.empty() || (pos.size() == 1 && pos[0] == -1)) {
         pimpl->setROI(static_cast<int>(value.size()), value.data(), -1);
     } else if (pos.size() > 1) {
-        throw RuntimeError("Cannot set roi to a subset of modules");  
+        throw RuntimeError("Cannot set roi to a subset of modules");
     } else {
-        pimpl->Parallel(&slsDetector::setROI, pos, static_cast<int>(value.size()), value.data());
+        pimpl->Parallel(&slsDetector::setROI, pos,
+                        static_cast<int>(value.size()), value.data());
     }
-}*/
+}
 
 Result<uint32_t> Detector::getADCEnableMask(Positions pos) const {
     return pimpl->Parallel(&slsDetector::getADCEnableMask, pos);
diff --git a/slsDetectorSoftware/tests/test-Result.cpp b/slsDetectorSoftware/tests/test-Result.cpp
index 352df0f68..ceb8f3d07 100644
--- a/slsDetectorSoftware/tests/test-Result.cpp
+++ b/slsDetectorSoftware/tests/test-Result.cpp
@@ -134,3 +134,34 @@ TEST_CASE("Convert from Result<int> to Result<ns>") {
     REQUIRE(res2[1] == ns(50));
     REQUIRE(res2[2] == ns(236));
 }
+
+
+TEST_CASE("Result of vectors"){
+    using VecVec = std::vector<std::vector<int>>;
+    VecVec vecvec{{1,2,3}, {4,5,6}};
+    Result<VecVec> res{vecvec};
+}
+
+TEST_CASE("emplace back"){
+    std::vector<int> vec{1,2,3,4,5};
+    Result<std::vector<int>> res;
+    res.emplace_back(vec.begin(), vec.end());
+    REQUIRE(res.size() == 1);
+    REQUIRE(res[0].size() == 5);
+    REQUIRE(res[0] == vec);
+}
+
+TEST_CASE("Free function begin end"){
+    Result<std::string> res{"ett", "nio", "sjutton"};
+    REQUIRE(begin(res) == res.begin());
+    REQUIRE(end(res) == res.end());
+}
+
+TEST_CASE("Sorting a Result"){
+    Result<int> res{4,5,1,3};
+    std::sort(res.begin(), res.end());
+    REQUIRE(res[0] == 1);
+    REQUIRE(res[1] == 3);
+    REQUIRE(res[2] == 4);
+    REQUIRE(res[3] == 5);
+}
\ No newline at end of file
diff --git a/slsSupportLib/include/FixedCapacityContainer.h b/slsSupportLib/include/FixedCapacityContainer.h
index 443426336..f6b57caa9 100644
--- a/slsSupportLib/include/FixedCapacityContainer.h
+++ b/slsSupportLib/include/FixedCapacityContainer.h
@@ -1,11 +1,11 @@
 #pragma once
+#include "TypeTraits.h"
 #include <array>
 #include <cassert>
+#include <iostream>
 #include <stdexcept>
 #include <vector>
 
-#include "TypeTraits.h"
-
 namespace sls {
 template <typename T, size_t Capacity> class FixedCapacityContainer {
 
@@ -15,35 +15,35 @@ template <typename T, size_t Capacity> class FixedCapacityContainer {
     using iterator = typename std::array<T, Capacity>::iterator;
     using const_iterator = typename std::array<T, Capacity>::const_iterator;
 
+  private:
+    size_type current_size{};
+    std::array<T, Capacity> data_;
+
+  public:
     FixedCapacityContainer() = default;
-    explicit FixedCapacityContainer(std::initializer_list<T> l) {
-        current_size = l.size();
+
+    explicit FixedCapacityContainer(std::initializer_list<T> l)
+        : current_size(l.size()) {
+        size_check(l.size());
         std::copy(l.begin(), l.end(), data_.begin());
     }
 
+    /** Copy construct from another container */
     template <typename V,
               typename = typename std::enable_if<
-                  is_light_container<V>::value &&
+                  is_container<V>::value &&
                   std::is_same<T, typename V::value_type>::value>::type>
-    explicit FixedCapacityContainer(const V &v) {
-        if (v.size() > Capacity) {
-            throw std::runtime_error(
-                "Capacity needs to be same size or larger than vector");
-        }
-        current_size = v.size();
+    FixedCapacityContainer(const V &v) : current_size(v.size()) {
+        size_check(v.size());
         std::copy(v.begin(), v.end(), data_.begin());
     }
 
-    template <size_t OtherCapacity>
-    explicit FixedCapacityContainer(
-        const FixedCapacityContainer<T, OtherCapacity> &other) noexcept {
-        static_assert(Capacity >= OtherCapacity,
-                      "Container needs to be same size or larger");
-        current_size = other.size();
-        std::copy(other.cbegin(), other.cend(), data_.begin());
-    }
-
-    FixedCapacityContainer &operator=(const std::vector<T> &other) {
+    /** copy assignment from another container */
+    template <typename V>
+    typename std::enable_if<is_container<V>::value,
+                            FixedCapacityContainer &>::type
+    operator=(const V &other) {
+        size_check(other.size());
         std::copy(other.begin(), other.end(), data_.begin());
         current_size = other.size();
         return *this;
@@ -110,42 +110,37 @@ template <typename T, size_t Capacity> class FixedCapacityContainer {
 
     // iterators
     iterator begin() noexcept { return data_.begin(); }
+    // auto begin() noexcept -> decltype(data_.begin()) { return data_.begin();
+    // }
     const_iterator begin() const noexcept { return data_.begin(); }
     iterator end() noexcept { return &data_[current_size]; }
     const_iterator end() const noexcept { return &data_[current_size]; }
     const_iterator cbegin() const noexcept { return data_.cbegin(); }
     const_iterator cend() const noexcept { return &data_[current_size]; }
 
-  private:
-    size_type current_size{};
-    std::array<T, Capacity> data_;
+    void size_check(size_type s) const {
+        if (s > Capacity) {
+            throw std::runtime_error(
+                "Capacity needs to be same size or larger than vector");
+        }
+    }
+
 } __attribute__((packed));
 
-/* Free function concerning FixedCapacityContainer */
-template <typename T, size_t Capacity>
-typename FixedCapacityContainer<T, Capacity>::iterator
-begin(FixedCapacityContainer<T, Capacity> &container) noexcept {
-    return container.begin();
-}
-
-template <typename T, size_t Capacity>
-typename FixedCapacityContainer<T, Capacity>::iterator
-end(FixedCapacityContainer<T, Capacity> &container) noexcept {
-    return container.end();
-}
-
-template <typename T, size_t Capacity>
-bool operator==(
-    const std::vector<T> &vec,
+/** support flipped order compare */
+template <typename T, size_t Capacity, typename C>
+typename std::enable_if<is_container<C>::value, bool>::type operator==(
+    const C &container,
     const FixedCapacityContainer<T, Capacity> &fixed_container) noexcept {
-    return fixed_container == vec;
+    return fixed_container.operator==(container);
 }
 
-template <typename T, size_t Capacity>
-bool operator!=(
-    const std::vector<T> &vec,
+/** support flipped order compare */
+template <typename T, size_t Capacity, typename C>
+typename std::enable_if<is_container<C>::value, bool>::type operator!=(
+    const C &container,
     const FixedCapacityContainer<T, Capacity> &fixed_container) noexcept {
-    return fixed_container != vec;
+    return fixed_container.operator!=(container);
 }
 
 } // namespace sls
diff --git a/slsSupportLib/tests/test-FixedCapacityContainer.cpp b/slsSupportLib/tests/test-FixedCapacityContainer.cpp
index 4d3552e6f..3fc6089dc 100644
--- a/slsSupportLib/tests/test-FixedCapacityContainer.cpp
+++ b/slsSupportLib/tests/test-FixedCapacityContainer.cpp
@@ -1,28 +1,81 @@
 #include "FixedCapacityContainer.h"
-#include "catch.hpp"
 #include "TypeTraits.h"
+#include "catch.hpp"
 
-#include <vector>
 #include <array>
+#include <vector>
 using sls::FixedCapacityContainer;
 
-TEST_CASE("FixedCapacityContainer is a container"){
-    REQUIRE(sls::is_container<FixedCapacityContainer<int,7>>::value == true);
+TEST_CASE("FixedCapacityContainer is a container") {
+    REQUIRE(sls::is_container<FixedCapacityContainer<int, 7>>::value == true);
 }
 
+TEST_CASE("Compare array and fixed capacity container") {
+    std::array<int, 3> arr{1, 2, 3};
+    std::array<int, 3> arr2{1, 7, 3};
+    FixedCapacityContainer<int, 7> fcc{1, 2, 3};
+    REQUIRE(fcc == arr);
+    REQUIRE(arr == fcc);
+    REQUIRE_FALSE(fcc != arr);
+    REQUIRE_FALSE(arr != fcc);
+    REQUIRE_FALSE(fcc == arr2);
+    REQUIRE_FALSE(arr2 == fcc);
+}
 
-TEST_CASE("Construct from vector"){
-    std::vector<int> vec{1,2,3};
+TEST_CASE("Compare vector and fixed capacity container") {
+    std::vector<int> vec{1, 2, 3};
+    std::vector<int> vec2{10, 2, 3};
+    FixedCapacityContainer<int, 7> fcc{1, 2, 3};
+    REQUIRE(fcc == vec);
+    REQUIRE(vec == fcc);
+    REQUIRE_FALSE(fcc != vec);
+    REQUIRE_FALSE(vec != fcc);
+    REQUIRE_FALSE(fcc == vec2);
+    REQUIRE_FALSE(vec2 == fcc);
+}
+
+TEST_CASE("Construct from vector") {
+    std::vector<int> vec{1, 2, 3};
     FixedCapacityContainer<int, 5> fcc{vec};
     REQUIRE(fcc == vec);
 }
 
-TEST_CASE("Construct from array"){
-    std::array<int,3> arr{1,2,3};
+TEST_CASE("Copy construct from vector") {
+    std::vector<int> vec{1, 2, 3};
+    FixedCapacityContainer<int, 5> fcc = vec;
+    REQUIRE(fcc == vec);
+}
+
+TEST_CASE("Copy assignment from vector") {
+    std::vector<int> vec{1, 2, 3};
+    FixedCapacityContainer<int, 5> fcc;
+    fcc = vec;
+    REQUIRE(fcc == vec);
+}
+
+TEST_CASE("Construct from array") {
+    std::array<int, 3> arr{1, 2, 3};
     FixedCapacityContainer<int, 5> fcc{arr};
     REQUIRE(fcc == arr);
 }
 
+TEST_CASE("Copy assign from array") {
+    std::array<int, 3> arr{1, 2, 3};
+    FixedCapacityContainer<int, 5> fcc;
+    fcc = arr;
+    REQUIRE(fcc == arr);
+}
+
+TEST_CASE("Copy construct from array") {
+    std::array<int, 3> arr{1, 2, 3};
+    FixedCapacityContainer<int, 5> fcc = arr;
+    REQUIRE(fcc == arr);
+}
+
+TEST_CASE("Free function and method gives the same iterators") {
+    FixedCapacityContainer<int, 3> fcc{1, 2, 3};
+    REQUIRE(std::begin(fcc) == fcc.begin());
+}
 SCENARIO("FixedCapacityContainers can be sized and resized", "[support]") {
 
     GIVEN("A default constructed container") {
@@ -30,7 +83,7 @@ SCENARIO("FixedCapacityContainers can be sized and resized", "[support]") {
         FixedCapacityContainer<int, n_elem> vec;
 
         REQUIRE(vec.empty());
-        REQUIRE(vec.size() == 0); //NOLINT
+        REQUIRE(vec.size() == 0); // NOLINT
         REQUIRE(vec.capacity() == n_elem);
         REQUIRE(sizeof(vec) == sizeof(int) * n_elem + sizeof(size_t));
 
@@ -94,13 +147,12 @@ SCENARIO("FixedCapacityContainers can be sized and resized", "[support]") {
         WHEN("We try to resize beyond the capacity") {
             THEN("it throws") { CHECK_THROWS(vec.resize(25)); }
         }
-        WHEN("We call front and back"){
-            THEN("They return referenced to the first and last element"){
+        WHEN("We call front and back") {
+            THEN("They return referenced to the first and last element") {
                 REQUIRE(vec.front() == 23);
                 REQUIRE(&vec.front() == &vec[0]);
                 REQUIRE(vec.back() == 11);
                 REQUIRE(&vec.back() == &vec[2]);
-
             }
         }
     }
@@ -163,7 +215,8 @@ SCENARIO("Comparison of FixedCapacityContainers", "[support]") {
     }
 }
 
-SCENARIO("Sorting, removing and other manipulation of a container", "[support]") {
+SCENARIO("Sorting, removing and other manipulation of a container",
+         "[support]") {
     GIVEN("An unsorted container") {
         FixedCapacityContainer<int, 5> a{14, 12, 90, 12};
         WHEN("We sort it") {
@@ -175,23 +228,23 @@ SCENARIO("Sorting, removing and other manipulation of a container", "[support]")
                 REQUIRE(a[3] == 90);
             }
         }
-        WHEN("Sorting is done using free function for begin and end") {
-            std::sort(begin(a), end(a));
-            THEN("it also works") {
-                REQUIRE(a[0] == 12);
-                REQUIRE(a[1] == 12);
-                REQUIRE(a[2] == 14);
-                REQUIRE(a[3] == 90);
-            }
-        }
-        WHEN("Erasing elements of a certain value") {
-            a.erase(std::remove(begin(a), end(a), 12));
-            THEN("all elements of that value are removed") {
-                REQUIRE(a.size() == 2);
-                REQUIRE(a[0] == 14);
-                REQUIRE(a[1] == 90);
-            }
-        }
+        // WHEN("Sorting is done using free function for begin and end") {
+        //     std::sort(begin(a), end(a));
+        //     THEN("it also works") {
+        //         REQUIRE(a[0] == 12);
+        //         REQUIRE(a[1] == 12);
+        //         REQUIRE(a[2] == 14);
+        //         REQUIRE(a[3] == 90);
+        //     }
+        // }
+        // WHEN("Erasing elements of a certain value") {
+        //     a.erase(std::remove(begin(a), end(a), 12));
+        //     THEN("all elements of that value are removed") {
+        //         REQUIRE(a.size() == 2);
+        //         REQUIRE(a[0] == 14);
+        //         REQUIRE(a[1] == 90);
+        //     }
+        // }
     }
 }
 
@@ -221,30 +274,28 @@ SCENARIO("Assigning containers to each other", "[support]") {
                 REQUIRE(c[2] == 3);
             }
         }
-        WHEN("We create a const FixedCapacityContainer"){
+        WHEN("We create a const FixedCapacityContainer") {
             const FixedCapacityContainer<int, 5> c(a);
-            THEN("The values are still the same using const operators"){
+            THEN("The values are still the same using const operators") {
                 REQUIRE(c[0] == 1);
                 REQUIRE(c[1] == 2);
                 REQUIRE(c[2] == 3);
                 REQUIRE(c.front() == 1);
                 REQUIRE(c.back() == 3);
-                
             }
         }
     }
 }
 
-SCENARIO("Converting to vector", "[support]"){
-    GIVEN("a FixedCapacityContainer"){
-        FixedCapacityContainer<int, 5> a{1,2,3};
-        WHEN("Converted into a vector"){
+SCENARIO("Converting to vector", "[support]") {
+    GIVEN("a FixedCapacityContainer") {
+        FixedCapacityContainer<int, 5> a{1, 2, 3};
+        WHEN("Converted into a vector") {
             std::vector<int> b(a);
-            THEN("Data and size matches"){
+            THEN("Data and size matches") {
                 REQUIRE(a == b);
                 REQUIRE(a.size() == b.size());
             }
         }
     }
 }
-