diff --git a/solution/tc_project_app/tc_project_app.plcproj b/solution/tc_project_app/tc_project_app.plcproj
index 249ac94..eff5c2b 100644
--- a/solution/tc_project_app/tc_project_app.plcproj
+++ b/solution/tc_project_app/tc_project_app.plcproj
@@ -58,18 +58,30 @@
     <Compile Include="tc_mca_std_lib\DUTs\E_HomeSwitchTypeClass.TcDUT">
       <SubType>Code</SubType>
     </Compile>
-    <Compile Include="tc_mca_std_lib\DUTs\E_PneumaticAxisErrors.TcDUT">
-      <SubType>Code</SubType>
-    </Compile>
-    <Compile Include="tc_mca_std_lib\DUTs\E_PneumaticAxisValveType.TcDUT">
-      <SubType>Code</SubType>
-    </Compile>
-    <Compile Include="tc_mca_std_lib\DUTs\E_PneumaticMode.TcDUT">
-      <SubType>Code</SubType>
-    </Compile>
     <Compile Include="tc_mca_std_lib\DUTs\E_RestorePosition.TcDUT">
       <SubType>Code</SubType>
     </Compile>
+    <Compile Include="tc_mca_std_lib\DUTs\Pneumatics\E_PneumaticAxisErrors.TcDUT">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="tc_mca_std_lib\DUTs\Pneumatics\E_PneumaticMode.TcDUT">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="tc_mca_std_lib\DUTs\Pneumatics\ST_PneumaticAxisControl.TcDUT">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="tc_mca_std_lib\DUTs\Pneumatics\ST_PneumaticAxisInputs.TcDUT">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="tc_mca_std_lib\DUTs\Pneumatics\ST_PneumaticAxisOutputs.TcDUT">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="tc_mca_std_lib\DUTs\Pneumatics\ST_PneumaticAxisStatus.TcDUT">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="tc_mca_std_lib\DUTs\Pneumatics\ST_PneumaticAxisStruct.TcDUT">
+      <SubType>Code</SubType>
+    </Compile>
     <Compile Include="tc_mca_std_lib\DUTs\ST_AxisConfig.TcDUT">
       <SubType>Code</SubType>
     </Compile>
@@ -100,21 +112,6 @@
     <Compile Include="tc_mca_std_lib\DUTs\ST_AxisStruct.TcDUT">
       <SubType>Code</SubType>
     </Compile>
-    <Compile Include="tc_mca_std_lib\DUTs\ST_PneumaticAxisControl.TcDUT">
-      <SubType>Code</SubType>
-    </Compile>
-    <Compile Include="tc_mca_std_lib\DUTs\ST_PneumaticAxisError.TcDUT">
-      <SubType>Code</SubType>
-    </Compile>
-    <Compile Include="tc_mca_std_lib\DUTs\ST_PneumaticAxisInputs.TcDUT">
-      <SubType>Code</SubType>
-    </Compile>
-    <Compile Include="tc_mca_std_lib\DUTs\ST_PneumaticAxisStatus.TcDUT">
-      <SubType>Code</SubType>
-    </Compile>
-    <Compile Include="tc_mca_std_lib\DUTs\ST_PneumaticAxisStruct.TcDUT">
-      <SubType>Code</SubType>
-    </Compile>
     <Compile Include="tc_mca_std_lib\GVLs\GVL.TcGVL">
       <SubType>Code</SubType>
     </Compile>
@@ -134,6 +131,10 @@
       <SubType>Code</SubType>
       <DependentUpon>Visualization Manager.TcVMO</DependentUpon>
     </Compile>
+    <Compile Include="tc_mca_std_lib\VISUs\PneumaticsVisu.TcVIS">
+      <SubType>Code</SubType>
+      <DependentUpon>Visualization Manager.TcVMO</DependentUpon>
+    </Compile>
     <Compile Include="tc_mca_std_lib\VISUs\visuTextLinks.TcTLO">
       <SubType>Code</SubType>
     </Compile>
@@ -147,6 +148,7 @@
     <Folder Include="POUs\Application_Specific" />
     <Folder Include="POUs\Application_Specific\Applications" />
     <Folder Include="POUs\Application_Specific\Axes" />
+    <Folder Include="tc_mca_std_lib\DUTs\Pneumatics" />
     <Folder Include="tc_mca_std_lib\POUs\Motion\Homing" />
     <Folder Include="tc_mca_std_lib\POUs\Pneumatics" />
     <Folder Include="tc_mca_std_lib\VISUs" />