diff --git a/AIStudio.Wpf.Mind/Helpers/FishBoneLayout.cs b/AIStudio.Wpf.Mind/Helpers/FishBoneLayout.cs
index ffb9650..d886776 100644
--- a/AIStudio.Wpf.Mind/Helpers/FishBoneLayout.cs
+++ b/AIStudio.Wpf.Mind/Helpers/FishBoneLayout.cs
@@ -68,6 +68,8 @@ namespace AIStudio.Wpf.Mind.Helpers
 
                         var port1 = new FullyCreatedConnectorInfo(mindNode.Root, mindNode, ConnectorOrientation.Left, true) { XRatio = 0, YRatio = 0.5 };
                         mindNode.AddConnector(port1);
+                        var port2 = new FullyCreatedConnectorInfo(mindNode.Root, mindNode, ConnectorOrientation.Bottom, true) { XRatio = 0.25, YRatio = 1 };
+                        mindNode.AddConnector(port2);
 
                         mindNode.IsInnerConnector = true;
                         mindNode.ColorViewModel.LineColor.Color = Color.FromRgb(0x73, 0xa1, 0xbf);
@@ -85,6 +87,8 @@ namespace AIStudio.Wpf.Mind.Helpers
 
                         var port1 = new FullyCreatedConnectorInfo(mindNode.Root, mindNode, ConnectorOrientation.Left, true) { XRatio = 0, YRatio = 0.5 };
                         mindNode.AddConnector(port1);
+                        var port2 = new FullyCreatedConnectorInfo(mindNode.Root, mindNode, ConnectorOrientation.Bottom, true) { XRatio = 0.25, YRatio = 1 };
+                        mindNode.AddConnector(port2);
 
                         mindNode.IsInnerConnector = true;
                         mindNode.ColorViewModel.LineColor.Color = Color.FromRgb(0x73, 0xa1, 0xbf);
@@ -217,17 +221,17 @@ namespace AIStudio.Wpf.Mind.Helpers
             {
                 if (mindNode.ConnectorOrientation == ConnectorOrientation.BottomLeft)
                 {
-                    double left = mindNode.Left + mindNode.ItemHeight + mindNode.Spacing.Height;
-                    double top = mindNode.Top - mindNode.Spacing.Height;
+                    double x0 = mindNode.Left;
+                    double y0 = mindNode.Top + mindNode.ItemHeight;
+                    double h = mindNode.ItemHeight + mindNode.Spacing.Height;
                     if (mindNode.Children?.Count > 0)
                     {
                         foreach (var child in mindNode.Children)
                         {
-                            child.Left = left + child.DesiredSize.Height - child.ItemHeight / 2 - child.Spacing.Height + child.Offset.X;
-                            child.Top = top - child.DesiredSize.Height + child.ItemHeight / 2 + child.Spacing.Height + child.Offset.Y;
+                            child.Left = x0 + (h + child.DesiredSize.Height - child.ItemHeight / 2 - child.Spacing.Height) + child.Offset.X;
+                            child.Top = y0 - (h + child.DesiredSize.Height - child.Spacing.Height) + child.Offset.Y;
                             child.DesiredPosition = child.Position;
-                            top -= child.DesiredSize.Height;
-                            left += child.DesiredSize.Height;
+                            h += child.DesiredSize.Height;
 
                             ArrangeOverride(child);
 
@@ -240,17 +244,17 @@ namespace AIStudio.Wpf.Mind.Helpers
                 }
                 else
                 {
-                    double left = mindNode.Left + mindNode.ItemHeight + mindNode.Spacing.Height;
-                    double top = mindNode.Top + mindNode.ItemHeight + mindNode.Spacing.Height;
+                    double x0 = mindNode.Left;
+                    double y0 = mindNode.Top;
+                    double h = mindNode.ItemHeight + mindNode.Spacing.Height;
                     if (mindNode.Children?.Count > 0)
                     {
                         foreach (var child in mindNode.Children)
                         {
-                            child.Left = left + child.DesiredSize.Height - child.ItemHeight / 2 - child.Spacing.Height + child.Offset.X;
-                            child.Top = top + child.DesiredSize.Height - child.ItemHeight / 2 - child.Spacing.Height + child.Offset.Y;
+                            child.Left = x0 + (h + child.DesiredSize.Height - child.ItemHeight / 2 - child.Spacing.Height) + child.Offset.X;
+                            child.Top = y0 + (h + child.DesiredSize.Height - child.ItemHeight - child.Spacing.Height) + child.Offset.Y;
                             child.DesiredPosition = child.Position;
-                            top += child.DesiredSize.Height;
-                            left += child.DesiredSize.Height;
+                            h += child.DesiredSize.Height;
 
                             ArrangeOverride(child);
 
@@ -262,6 +266,28 @@ namespace AIStudio.Wpf.Mind.Helpers
                     }
                 }
             }
+            else if (mindNode.NodeLevel == NodeLevel.Level3 || mindNode.NodeLevel == NodeLevel.Level4)
+            {
+                double left = mindNode.MiddlePosition.X;
+                double top = mindNode.MiddlePosition.Y + mindNode.ItemHeight / 2 + mindNode.Spacing.Height;
+                if (mindNode.Children?.Count > 0)
+                {
+                    foreach (var child in mindNode.Children)
+                    {
+                        child.Left = left + child.Offset.X;
+                        child.Top = top + child.Spacing.Height + child.Offset.Y;
+                        child.DesiredPosition = child.Position;
+                        top += child.DesiredSize.Height;
+
+                        ArrangeOverride(child);
+
+                        var connect = mindNode.Root?.Items.OfType<ConnectionViewModel>().FirstOrDefault(p => p.SourceConnectorInfo?.DataItem == mindNode && p.SinkConnectorInfoFully?.DataItem == child);
+                        connect?.SetSourcePort(mindNode.BottomConnector);
+                        connect?.SetSinkPort(child.LeftConnector);
+                        connect?.SetVisible(child.Visible);
+                    }
+                }
+            }
         }
     }