diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 8a5b69e27df43096ee93b49ab0ee9588951348a7..8fab4d76e857fd770f68b8469cf42c2c01668ca8 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -4,9 +4,13 @@
     <option name="autoReloadType" value="SELECTIVE" />
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="ade4f2dd-968a-4099-9236-831254f6eb55" name="Changes" comment="add config for available modules and a small script to generate&#10;add exampale settings of modules">
-      <change beforePath="$PROJECT_DIR$/.idea/fastApiUnicado.iml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/fastApiUnicado.iml" afterDir="false" />
+    <list default="true" id="ade4f2dd-968a-4099-9236-831254f6eb55" name="Changes" comment="refactoring test file to tmp/modules">
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/main.py" beforeDir="false" afterPath="$PROJECT_DIR$/main.py" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/tmp/modules" beforeDir="false" afterPath="$PROJECT_DIR$/tmp/modules" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/xml_configs/config.ini" beforeDir="false" afterPath="$PROJECT_DIR$/xml_configs/config.ini" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/xml_configs/propulsionIntegration_conf.xml" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/xml_configs/propulsionIntegration_conf_default.xml" beforeDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -58,7 +62,7 @@
     &quot;RunOnceActivity.ShowReadmeOnStart&quot;: &quot;true&quot;,
     &quot;codeWithMe.voiceChat.enabledByDefault&quot;: &quot;false&quot;,
     &quot;git-widget-placeholder&quot;: &quot;master&quot;,
-    &quot;last_opened_file_path&quot;: &quot;C:/Users/d_bui/PycharmProjects/fastApiUnicado/xml_configs&quot;,
+    &quot;last_opened_file_path&quot;: &quot;C:/Users/d_bui/PycharmProjects/fastApiUnicado/tmp&quot;,
     &quot;node.js.detected.package.eslint&quot;: &quot;true&quot;,
     &quot;node.js.detected.package.tslint&quot;: &quot;true&quot;,
     &quot;node.js.selected.package.eslint&quot;: &quot;(autodetect)&quot;,
@@ -70,6 +74,7 @@
 }</component>
   <component name="RecentsManager">
     <key name="CopyFile.RECENT_KEYS">
+      <recent name="C:\Users\d_bui\PycharmProjects\fastApiUnicado\tmp" />
       <recent name="C:\Users\d_bui\PycharmProjects\fastApiUnicado\xml_configs" />
       <recent name="C:\Users\d_bui\PycharmProjects\fastApiUnicado\output_files" />
       <recent name="C:\Users\d_bui\PycharmProjects\fastApiUnicado" />
@@ -79,7 +84,7 @@
       <recent name="C:\Users\d_bui\PycharmProjects\fastApiUnicado" />
     </key>
   </component>
-  <component name="RunManager" selected="FastAPI.fastApiUnicado">
+  <component name="RunManager" selected="Python.configWriter">
     <configuration name="test_main | #6" type="HttpClient.HttpRequestRunConfigurationType" factoryName="HTTP Request" temporary="true" nameIsGenerated="true" path="$PROJECT_DIR$/test_main.http" index="6" requestIdentifier="#6" runType="Run single request">
       <method v="2" />
     </configuration>
@@ -295,7 +300,9 @@
       <workItem from="1725608860034" duration="12274000" />
       <workItem from="1725871510924" duration="595000" />
       <workItem from="1725956023581" duration="4552000" />
-      <workItem from="1725970370723" duration="1430000" />
+      <workItem from="1725970370723" duration="6389000" />
+      <workItem from="1726038817770" duration="36000" />
+      <workItem from="1726046411914" duration="4116000" />
     </task>
     <task id="LOCAL-00001" summary="add update_Modules">
       <option name="closed" value="true" />
@@ -377,7 +384,15 @@
       <option name="project" value="LOCAL" />
       <updated>1725971455637</updated>
     </task>
-    <option name="localTasksCounter" value="11" />
+    <task id="LOCAL-00011" summary="refactoring test file to tmp/modules">
+      <option name="closed" value="true" />
+      <created>1725972109933</created>
+      <option name="number" value="00011" />
+      <option name="presentableId" value="LOCAL-00011" />
+      <option name="project" value="LOCAL" />
+      <updated>1725972109933</updated>
+    </task>
+    <option name="localTasksCounter" value="12" />
     <servers />
   </component>
   <component name="TypeScriptGeneratedFilesManager">
@@ -417,12 +432,13 @@
     <MESSAGE value="add reset to default" />
     <MESSAGE value="bugfix utf-8 special char writing" />
     <MESSAGE value="add config for available modules and a small script to generate&#10;add exampale settings of modules" />
-    <option name="LAST_COMMIT_MESSAGE" value="add config for available modules and a small script to generate&#10;add exampale settings of modules" />
+    <MESSAGE value="refactoring test file to tmp/modules" />
+    <option name="LAST_COMMIT_MESSAGE" value="refactoring test file to tmp/modules" />
   </component>
   <component name="com.intellij.coverage.CoverageDataManagerImpl">
-    <SUITE FILE_PATH="coverage/fastApiUnicado$fastApiUnicado.coverage" NAME="fastApiUnicado Coverage Results" MODIFIED="1725971234697" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="false" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="" />
+    <SUITE FILE_PATH="coverage/fastApiUnicado$fastApiUnicado.coverage" NAME="fastApiUnicado Coverage Results" MODIFIED="1726049164040" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="false" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="" />
     <SUITE FILE_PATH="coverage/fastApiUnicado$xmlConfigReader.coverage" NAME="xmlConfigReader Coverage Results" MODIFIED="1720078308255" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="false" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$" />
     <SUITE FILE_PATH="coverage/fastApiUnicado$test.coverage" NAME="test Coverage Results" MODIFIED="1711008069985" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$" />
-    <SUITE FILE_PATH="coverage/fastApiUnicado$configWriter.coverage" NAME="configWriter Coverage Results" MODIFIED="1725970890207" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="false" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$" />
+    <SUITE FILE_PATH="coverage/fastApiUnicado$configWriter.coverage" NAME="configWriter Coverage Results" MODIFIED="1726053313909" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="false" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$" />
   </component>
 </project>
\ No newline at end of file
diff --git a/main.py b/main.py
index 87770460ab314d43ad44018aa10d9734bdd712e7..0cd07cd6ecd49fce632e757410d417ac9205a676 100644
--- a/main.py
+++ b/main.py
@@ -2,12 +2,12 @@ import configparser
 import json
 from fastapi import FastAPI
 from fastapi.responses import FileResponse
-import xml.etree.ElementTree as ET
 from fastapi.middleware.cors import CORSMiddleware
 from pydantic import BaseModel
 import xmltodict
 from fastapi.encoders import jsonable_encoder
 
+#FastAPI Backend for UNICADO Gui
 app = FastAPI()
 
 origins = [
@@ -23,26 +23,15 @@ app.add_middleware(
     allow_headers=["*"],
 )
 
-
-class Convergence(BaseModel):
-    SetupSteps: list = []
-    StudyMission: list = []
-    SizingLoop: list = []
-    PostprocessingSteps: list = []
-
+#Models for requests
 class Modules(BaseModel):
     groups: list = []
 
 class Conf(BaseModel):
     module_configuration_file: dict = {}
 
-def search_modules(dict, name, root):
-    list = []
-    for i in range(len(root.findall(f"ProgramSettings/{name}/Program/Name"))):
-        list.append(root.find(f"ProgramSettings/{name}/Program[@ID='{i + 1}']/Name").text)
-    dict[name] = list
-
 
+#Endpoints
 @app.get("/start/{module}")
 async def start_module(module: str):
     #dummy-function
@@ -50,22 +39,19 @@ async def start_module(module: str):
     return {"message": f"running {module} without problems"}
 
 
-@app.get("/convergence")
-async def get_conv_modules():
-    tree = ET.parse('xml_configs/convergenceLoop_conf.xml')
-    root = tree.getroot()
+#endpoint which returns a list of available modules
+@app.get("/modules/selection")
+async def get_avail_modules():
     dict = {}
     config = configparser.ConfigParser()
     config.read('xml_configs/config.ini')
 
-    search_modules(dict, "SetupSteps", root)
-    search_modules(dict, "SizingLoop", root)
-    search_modules(dict, "StudyMission", root)
-    search_modules(dict, "PostprocessingSteps", root)
-
     dict['availableModules']=config['available_Modules']['modules'].split(',')
     return dict
 
+
+#TO-DO: following endpoints are for the case of a single project, need to add solution for more projects
+#endpoint which returns the last saved project
 @app.get("/modules")
 async def get_modules():
     with open("tmp/modules", "r") as fp:
@@ -73,7 +59,7 @@ async def get_modules():
 
     return modules
 
-
+#endpoint to save the current project on the server
 @app.put("/modules/update")
 async def update_modules(item:Modules):
     print(jsonable_encoder(item))
@@ -82,13 +68,14 @@ async def update_modules(item:Modules):
 
     return item
 
-
+#endpoint to get the settings of selected module
 @app.get("/modules/{module}/config")
 async def get_module_config(module: str):
     with open("xml_configs/"+module+"_conf.xml", encoding='utf-8') as fd:
         config = json.dumps(xmltodict.parse(fd.read()))
         return config
 
+#endpoint to save the setting of selected module
 @app.put("/modules/config/update")
 async def update_module_config(config: Conf):
     dict = {"module_configuration_file": config.module_configuration_file}
@@ -97,6 +84,7 @@ async def update_module_config(config: Conf):
         fd.write(xml)
         return
 
+#endpoint reset settings of selected module to default
 @app.get("/modules/{module}/config/reset")
 async def reset_module_config(module:str):
     with open("xml_configs/"+module+"_conf_default.xml", encoding='utf-8') as fd:
@@ -106,6 +94,7 @@ async def reset_module_config(module:str):
         fd.write(xml)
     return
 
+#dummy endpoints
 @app.get("/graph/")
 async def get_plotData():
     #dummy-Function
diff --git a/tmp/modules b/tmp/modules
index 8bca2044e84d941403947dd23542e7b6b9c3b7bc..d0279f921797517036c734c4e9e48bf1bf243a88 100644
--- a/tmp/modules
+++ b/tmp/modules
@@ -1 +1 @@
-{"groups": [{"name": "models from branches", "loop": "true", "loopsize": 1, "modules": ["initialSizing", "wingDesign", "createMissionXML", "systemsDesign", "calculatePolar", "calculatePerformance", "propulsionIntegration", "missionAnalysis", "weightAndBalanceAnalysis", "propulsionDesign"]}, {"name": "test1", "loop": "true", "loopsize": 1, "modules": ["landingGearDesign", "estimateDOC", "initialSizing", "cpacsInterface", "calculatePerformance"]}, {"name": "copy of test1", "loop": "true", "loopsize": 1, "modules": ["estimateDOC", "landingGearDesign", "initialSizing", "cpacsInterface", "calculatePerformance"]}]}
\ No newline at end of file
+{"groups": [{"name": "models from  modularization branches", "loop": "true", "loopsize": 1, "modules": ["initialSizing", "wingDesign", "createMissionXML", "systemsDesign", "calculatePolar", "calculatePerformance", "missionAnalysis", "weightAndBalanceAnalysis", "propulsionDesign"]}]}
\ No newline at end of file
diff --git a/xml_configs/config.ini b/xml_configs/config.ini
index 038ba3098982f86d234223130b5afb02c99d4472..a83da65cd12ccfba68049ffa362cbbcf5b84bf03 100644
--- a/xml_configs/config.ini
+++ b/xml_configs/config.ini
@@ -1,3 +1,3 @@
 [available_Modules]
-modules = calculatePerformance,calculatePolar,createMissionXML,initialSizing,missionAnalysis,propulsionDesign,propulsionIntegration,systemsDesign,weightAndBalanceAnalysis,wingDesign
+modules = calculatePerformance,calculatePolar,createMissionXML,initialSizing,missionAnalysis,propulsionDesign,systemsDesign,weightAndBalanceAnalysis,wingDesign
 
diff --git a/xml_configs/propulsionIntegration_conf.xml b/xml_configs/propulsionIntegration_conf.xml
deleted file mode 100644
index 19f9e345639303a8a301e39eb02ec4a65b147808..0000000000000000000000000000000000000000
--- a/xml_configs/propulsionIntegration_conf.xml
+++ /dev/null
@@ -1,42 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<ConfigFile Name="propulsionIntegration_conf.xml">
-    <ControlSettings Desc="General control settings">
-        <IOFileName>CSR-02.xml</IOFileName>
-        <IODir>../../../../rUnicado/aircraftReferences/CSR/CSR-02/cleanSheetDesign/</IODir>
-        <OwnToolLevel>1</OwnToolLevel>
-        <ConsoleOutputOn Desc="0: Off, 1: only out/err/warn, 2: 1 + info, 3: 2 + debug">1</ConsoleOutputOn>
-        <LogfileOutputOn Desc="0: Off, 1: only out/err/warn, 2: 1 + info, 3: 2 + debug">1</LogfileOutputOn>
-        <PlotOutputOn CopyPlottingFiles="1" DeletePlottingFilesFromToolFolder="1">1</PlotOutputOn>
-        <ReportOutputOn>1</ReportOutputOn>
-        <TexReportOn>1</TexReportOn>
-        <WriteInfoFiles>0</WriteInfoFiles>
-        <GnuplotScript>propulsionIntegration_plot.plt</GnuplotScript>
-        <LogFile>propulsionIntegration.log</LogFile>
-        <InkscapePath>DEFAULT</InkscapePath>
-        <GnuplotPath>DEFAULT</GnuplotPath>
-    </ControlSettings>
-    <ProgramSettings Desc="Program settings">
-        <SizingMode Unit="-" Desc="0: Nacelles will not be altered, 1:Nacelle Sizing, 2: Nacelle Scaling" Default="1">1</SizingMode>
-        <PylonParameters Desc="Parameters for the design and scaling of the Pylons">
-            <PylonMode Unit="-" Desc="0:Pylons will not be altered, 1:Pylon Sizing, 2: Pylon repositioning" Default="1">1</PylonMode>
-            <PylonSizing Desc="Parameters for the sizing of a 2 segment pylon, 1. seg. in nacelle, 2. seg to connected body">
-                <rel_x_ref_Point Unit="-" Desc="Distance in x direction from nacelle ref point to plyon ref point relative to nacelle length" Default="0.1">0.1</rel_x_ref_Point>
-                <rel_y_ref_Point Unit="-" Desc="Distance in y direction from nacelle ref point to plyon ref point relative to nacelle width" Default="0.0">0.0</rel_y_ref_Point>
-                <rel_z_ref_Point Unit="-" Desc="Distance in z direction from nacelle ref point to plyon ref point relative to nacelle height" Default="0.0">0.0</rel_z_ref_Point>
-                <Pylon1stSegment>
-                    <InnerProfile_Segment Desc="Inner airfoil segment. Geometry is stored in IoDir/geometry/airfoilData in a seperate file (*.dat)" ToolLevel="1">geometryData/airfoilData/n0012.dat</InnerProfile_Segment>
-                    <OuterProfile_Segment Desc="Outer airfoil segment. Geometry is stored in IoDir/geometry/airfoilData in a seperate file (*.dat)" ToolLevel="1">geometryData/airfoilData/n0012.dat</OuterProfile_Segment>
-                    <l_i_rel_segment Unit="-" Desc="Inner chord length of pylon relative to nacelle length" Default="0.9">1.2</l_i_rel_segment>
-                    <l_o_rel_segment Unit="-" Desc="Inner chord length of pylon relative to nacelle length" Default="0.9">1.5</l_o_rel_segment>
-                    <s_rel_Segment Unit="-" Desc="Span of pylon segment relative to nacelle heigth" ToolLevel="0.5">0.42</s_rel_Segment>
-                    <phi_Segment Unit="deg" Desc="Leading edge sweep angle of pylon segment" Default="0.">0</phi_Segment>
-                </Pylon1stSegment>
-                <Pylon2ndSegment>
-                    <InnerProfile_Segment Desc="Inner airfoil segment. Geometry is stored in IoDir/geometry/airfoilData in a seperate file (*.dat)" ToolLevel="1">geometryData/airfoilData/n0012.dat</InnerProfile_Segment>
-                    <OuterProfile_Segment Desc="Outer airfoil segment. Geometry is stored in IoDir/geometry/airfoilData in a seperate file (*.dat)" ToolLevel="1">geometryData/airfoilData/n0012.dat</OuterProfile_Segment>
-                    <l_i_rel_segment Unit="-" Desc="Inner chord length of pylon relative to nacelle length" Default="0.9">1.5</l_i_rel_segment>
-                </Pylon2ndSegment>
-            </PylonSizing>
-        </PylonParameters>
-    </ProgramSettings>
-</ConfigFile>
diff --git a/xml_configs/propulsionIntegration_conf_default.xml b/xml_configs/propulsionIntegration_conf_default.xml
deleted file mode 100644
index 19f9e345639303a8a301e39eb02ec4a65b147808..0000000000000000000000000000000000000000
--- a/xml_configs/propulsionIntegration_conf_default.xml
+++ /dev/null
@@ -1,42 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<ConfigFile Name="propulsionIntegration_conf.xml">
-    <ControlSettings Desc="General control settings">
-        <IOFileName>CSR-02.xml</IOFileName>
-        <IODir>../../../../rUnicado/aircraftReferences/CSR/CSR-02/cleanSheetDesign/</IODir>
-        <OwnToolLevel>1</OwnToolLevel>
-        <ConsoleOutputOn Desc="0: Off, 1: only out/err/warn, 2: 1 + info, 3: 2 + debug">1</ConsoleOutputOn>
-        <LogfileOutputOn Desc="0: Off, 1: only out/err/warn, 2: 1 + info, 3: 2 + debug">1</LogfileOutputOn>
-        <PlotOutputOn CopyPlottingFiles="1" DeletePlottingFilesFromToolFolder="1">1</PlotOutputOn>
-        <ReportOutputOn>1</ReportOutputOn>
-        <TexReportOn>1</TexReportOn>
-        <WriteInfoFiles>0</WriteInfoFiles>
-        <GnuplotScript>propulsionIntegration_plot.plt</GnuplotScript>
-        <LogFile>propulsionIntegration.log</LogFile>
-        <InkscapePath>DEFAULT</InkscapePath>
-        <GnuplotPath>DEFAULT</GnuplotPath>
-    </ControlSettings>
-    <ProgramSettings Desc="Program settings">
-        <SizingMode Unit="-" Desc="0: Nacelles will not be altered, 1:Nacelle Sizing, 2: Nacelle Scaling" Default="1">1</SizingMode>
-        <PylonParameters Desc="Parameters for the design and scaling of the Pylons">
-            <PylonMode Unit="-" Desc="0:Pylons will not be altered, 1:Pylon Sizing, 2: Pylon repositioning" Default="1">1</PylonMode>
-            <PylonSizing Desc="Parameters for the sizing of a 2 segment pylon, 1. seg. in nacelle, 2. seg to connected body">
-                <rel_x_ref_Point Unit="-" Desc="Distance in x direction from nacelle ref point to plyon ref point relative to nacelle length" Default="0.1">0.1</rel_x_ref_Point>
-                <rel_y_ref_Point Unit="-" Desc="Distance in y direction from nacelle ref point to plyon ref point relative to nacelle width" Default="0.0">0.0</rel_y_ref_Point>
-                <rel_z_ref_Point Unit="-" Desc="Distance in z direction from nacelle ref point to plyon ref point relative to nacelle height" Default="0.0">0.0</rel_z_ref_Point>
-                <Pylon1stSegment>
-                    <InnerProfile_Segment Desc="Inner airfoil segment. Geometry is stored in IoDir/geometry/airfoilData in a seperate file (*.dat)" ToolLevel="1">geometryData/airfoilData/n0012.dat</InnerProfile_Segment>
-                    <OuterProfile_Segment Desc="Outer airfoil segment. Geometry is stored in IoDir/geometry/airfoilData in a seperate file (*.dat)" ToolLevel="1">geometryData/airfoilData/n0012.dat</OuterProfile_Segment>
-                    <l_i_rel_segment Unit="-" Desc="Inner chord length of pylon relative to nacelle length" Default="0.9">1.2</l_i_rel_segment>
-                    <l_o_rel_segment Unit="-" Desc="Inner chord length of pylon relative to nacelle length" Default="0.9">1.5</l_o_rel_segment>
-                    <s_rel_Segment Unit="-" Desc="Span of pylon segment relative to nacelle heigth" ToolLevel="0.5">0.42</s_rel_Segment>
-                    <phi_Segment Unit="deg" Desc="Leading edge sweep angle of pylon segment" Default="0.">0</phi_Segment>
-                </Pylon1stSegment>
-                <Pylon2ndSegment>
-                    <InnerProfile_Segment Desc="Inner airfoil segment. Geometry is stored in IoDir/geometry/airfoilData in a seperate file (*.dat)" ToolLevel="1">geometryData/airfoilData/n0012.dat</InnerProfile_Segment>
-                    <OuterProfile_Segment Desc="Outer airfoil segment. Geometry is stored in IoDir/geometry/airfoilData in a seperate file (*.dat)" ToolLevel="1">geometryData/airfoilData/n0012.dat</OuterProfile_Segment>
-                    <l_i_rel_segment Unit="-" Desc="Inner chord length of pylon relative to nacelle length" Default="0.9">1.5</l_i_rel_segment>
-                </Pylon2ndSegment>
-            </PylonSizing>
-        </PylonParameters>
-    </ProgramSettings>
-</ConfigFile>