diff --git a/Views/UserControl/Viewport3D.xaml b/Views/UserControl/Viewport3D.xaml
index 532b5eb..c8f9f89 100644
--- a/Views/UserControl/Viewport3D.xaml
+++ b/Views/UserControl/Viewport3D.xaml
@@ -89,8 +89,8 @@
                     <KeyBinding Key="R" Command="hx:ViewportCommands.RightView" />
                     <KeyBinding Command="hx:ViewportCommands.ZoomExtents" Gesture="Control+E" />
                     <MouseBinding Command="hx:ViewportCommands.Rotate" Gesture="RightClick" />
-                    <MouseBinding Command="hx:ViewportCommands.Zoom" Gesture="MiddleClick" />
-                    <!--<MouseBinding Command="hx:ViewportCommands.Pan" Gesture="LeftClick" />-->
+                    <!-- <MouseBinding Command="hx:ViewportCommands.Zoom" Gesture="MiddleClick" /> -->
+                    <MouseBinding Command="hx:ViewportCommands.Pan" Gesture="MiddleClick" />
                 </hx:Viewport3DX.InputBindings>
                 <hx:AxisPlaneGridModel3D
                 AutoSpacing="true"