diff --git a/DotNetSiemensPLCToolBoxLibrary.TIAV19/Step7ProjectV19Tia.cs b/DotNetSiemensPLCToolBoxLibrary.TIAV19/Step7ProjectV19Tia.cs
index b7be48da..6aa34a11 100644
--- a/DotNetSiemensPLCToolBoxLibrary.TIAV19/Step7ProjectV19Tia.cs
+++ b/DotNetSiemensPLCToolBoxLibrary.TIAV19/Step7ProjectV19Tia.cs
@@ -458,7 +458,17 @@ public List<ITIAVarTab> TagTables
                     return retVal;
                 }
             }
-            
+
+            public override ProjectFolder CreateFolder(string name)
+            {
+                var gp = group.Groups.Create(name);
+                var newFld = new TIAOpennessVariablesFolder((Step7ProjectV19)Project, ControllerFolder, gp);
+                newFld.Name = gp.Name;
+                newFld.Parent = this;
+                this.SubItems.Add(newFld);
+                return newFld;
+            }
+
             public override void ImportFile(FileInfo file, bool overwrite, bool importFromSource)
             {
                 this.group.TagTables.Import(file, overwrite ? ImportOptions.Override : ImportOptions.None);
diff --git a/DotNetSiemensPLCToolBoxLibrary.TIAV20/Step7ProjectV20Tia.cs b/DotNetSiemensPLCToolBoxLibrary.TIAV20/Step7ProjectV20Tia.cs
index 1b379b7a..a7d96c92 100644
--- a/DotNetSiemensPLCToolBoxLibrary.TIAV20/Step7ProjectV20Tia.cs
+++ b/DotNetSiemensPLCToolBoxLibrary.TIAV20/Step7ProjectV20Tia.cs
@@ -459,6 +459,17 @@ public List<ITIAVarTab> TagTables
                     return retVal;
                 }
             }
+
+            public override ProjectFolder CreateFolder(string name)
+            {
+                var gp = group.Groups.Create(name);
+                var newFld = new TIAOpennessVariablesFolder((Step7ProjectV20)Project, ControllerFolder, gp);
+                newFld.Name = gp.Name;
+                newFld.Parent = this;
+                this.SubItems.Add(newFld);
+                return newFld;
+            }
+
             public override void ImportFile(FileInfo file, bool overwrite, bool importFromSource)
             {
                 this.group.TagTables.Import(file, overwrite ? ImportOptions.Override : ImportOptions.None);