diff --git a/AIStudio.Wpf.DiagramDesigner/Themes/ConnectorItem.xaml b/AIStudio.Wpf.DiagramDesigner/Themes/ConnectorItem.xaml
index ddfb42307f7d6ca304d586204408b1c462550cda..5a9693c0425dbea0a1e237ba21ae947742ed3150 100644
--- a/AIStudio.Wpf.DiagramDesigner/Themes/ConnectorItem.xaml
+++ b/AIStudio.Wpf.DiagramDesigner/Themes/ConnectorItem.xaml
@@ -30,8 +30,8 @@
     </DataTemplate>
 
     <DataTemplate DataType="{x:Type dd:LogicalConnectorInfo}">
-        <Grid>
-            <Grid Width="{Binding ConnectorWidth}" Height="{Binding ConnectorHeight}" HorizontalAlignment="Left" VerticalAlignment="Top">
+        <Grid ToolTip="{Binding Name}">
+            <Grid Width="{Binding ConnectorWidth}" Height="{Binding ConnectorHeight}"  HorizontalAlignment="Left" VerticalAlignment="Top">
                 <Grid.ContextMenu>
                     <ContextMenu ItemsSource="{Binding MenuOptions}">
                         <ContextMenu.ItemContainerStyle>
diff --git a/AIStudio.Wpf.DiagramDesigner/UserControls/DiagramControl.xaml b/AIStudio.Wpf.DiagramDesigner/UserControls/DiagramControl.xaml
index 64eca6c1bf5c0822aab1ca97d3fa4f0ebcb1b34d..78af4c1908d029100bb5504baffe925267a4cf12 100644
--- a/AIStudio.Wpf.DiagramDesigner/UserControls/DiagramControl.xaml
+++ b/AIStudio.Wpf.DiagramDesigner/UserControls/DiagramControl.xaml
@@ -265,7 +265,7 @@
                         VerticalAlignment="Bottom"
                         HorizontalAlignment="Left"
                         Visibility="{Binding Path=ShowConnectors, Converter={x:Static dd:BoolToVisibilityConverter.Instance}}" />
-                    <Button Margin="-30"  Background="Transparent"    BorderThickness="0"                
+                    <!--<Button Margin="-30"  Background="Transparent"    BorderThickness="0"                
                         VerticalAlignment="Center"
                         HorizontalAlignment="Left"
                         Visibility="{Binding Path=ShowConnectors, Converter={x:Static dd:BoolToVisibilityConverter.Instance}}" >
@@ -288,8 +288,7 @@
                         HorizontalAlignment="Center"
                         Visibility="{Binding Path=ShowConnectors, Converter={x:Static dd:BoolToVisibilityConverter.Instance}}" >
                         <TextBlock Text="✚" FontWeight="Bold" FontSize="16" Foreground="DarkGray" />
-                    </Button>
-                    
+                    </Button>-->                    
                 </Grid>
             </ControlTemplate>
 
diff --git a/AIStudio.Wpf.DiagramDesigner/ViewModels/BaseViewModel/DesignerItemViewModelBase.cs b/AIStudio.Wpf.DiagramDesigner/ViewModels/BaseViewModel/DesignerItemViewModelBase.cs
index 3014f78749714b97e662f00a42d3738d29554fb8..9062a0d7569f2ca2510dfe478755c204fe878f6a 100644
--- a/AIStudio.Wpf.DiagramDesigner/ViewModels/BaseViewModel/DesignerItemViewModelBase.cs
+++ b/AIStudio.Wpf.DiagramDesigner/ViewModels/BaseViewModel/DesignerItemViewModelBase.cs
@@ -592,7 +592,7 @@ namespace AIStudio.Wpf.DiagramDesigner
             }
         }
 
-        public void ClearConnectors()
+        public virtual void ClearConnectors()
         {
             connectors.Clear();
         }
diff --git a/AIStudio.Wpf.DiagramDesigner/ViewModels/DefaultViewModel/LogicalGateItemViewModelBase.cs b/AIStudio.Wpf.DiagramDesigner/ViewModels/DefaultViewModel/LogicalGateItemViewModelBase.cs
index f995be119fb7dfb5b289dedab7071bed28cc6192..ba8c9887891049a8e1f4344859cc71c664ff83a9 100644
--- a/AIStudio.Wpf.DiagramDesigner/ViewModels/DefaultViewModel/LogicalGateItemViewModelBase.cs
+++ b/AIStudio.Wpf.DiagramDesigner/ViewModels/DefaultViewModel/LogicalGateItemViewModelBase.cs
@@ -38,17 +38,17 @@ namespace AIStudio.Wpf.DiagramDesigner
 
         public LogicalGateItemViewModelBase(IDiagramViewModel root, LogicalType logicalType) : base(root)
         {
-            this.LogicalType = logicalType;  
+            this.LogicalType = logicalType;
         }
 
         public LogicalGateItemViewModelBase(IDiagramViewModel root, SelectableItemBase designer) : base(root, designer)
         {
-            
+
         }
 
         public LogicalGateItemViewModelBase(IDiagramViewModel root, SerializableItem serializableItem, string serializableType) : base(root, serializableItem, serializableType)
         {
-           
+
         }
 
         public override SelectableItemBase GetSerializableObject()
@@ -177,7 +177,14 @@ namespace AIStudio.Wpf.DiagramDesigner
         public Dictionary<int, LogicalConnectorInfo> Input { get; set; } = new Dictionary<int, LogicalConnectorInfo>();
         public Dictionary<int, LogicalConnectorInfo> Output { get; set; } = new Dictionary<int, LogicalConnectorInfo>();
 
-        public virtual LogicalConnectorInfo ExecuteAddInput(object parameter, int index = 0)
+        public override void ClearConnectors()
+        {
+            connectors.Clear();
+            Input.Clear();
+            Output.Clear();
+        }
+
+        public virtual LogicalConnectorInfo ExecuteAddInput(object parameter, int index = 0, string name = null)
         {
             if (Input.Values.Count >= 2)
             {
@@ -185,6 +192,7 @@ namespace AIStudio.Wpf.DiagramDesigner
             }
             LogicalConnectorInfo connector = new LogicalConnectorInfo(this, ConnectorOrientation.Left, true, false, ValueTypeInput.Count > index ? ValueTypeInput[index] : ValueTypeInput[0]);
             connector.XRatio = 0;
+            connector.Name = name ?? $"Input{index}";
             Input.Add(Input.Count, connector);
             for (int i = 0; i < Input.Values.Count; i++)
             {
@@ -195,10 +203,11 @@ namespace AIStudio.Wpf.DiagramDesigner
             return connector;
         }
 
-        public virtual LogicalConnectorInfo ExecuteAddOutput(object parameter, int index = 0)
+        public virtual LogicalConnectorInfo ExecuteAddOutput(object parameter, int index = 0, string name = null)
         {
             LogicalConnectorInfo connector = new LogicalConnectorInfo(this, ConnectorOrientation.Right, true, false, ValueTypeOutput.Count > index ? ValueTypeOutput[index] : ValueTypeInput[0]);
             connector.XRatio = 1;
+            connector.Name = name ?? $"Output{index}";
             Output.Add(Output.Count, connector);
             for (int i = 0; i < Output.Values.Count; i++)
             {