JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. Set Reference Back Clip Plane Used to set the back clipping plane for a 3D reference . You can access this tool from the following: Ribbon: Drawing > Attach > Reference > More split button Toolbox: Reference SettingDescription Use Reference Dialog List If on, the model(s) selected on the References dialog is used to set the back clip plane. Use Fence If on, the fence contents are used to set the back clip plane. The option menu sets the Fence (Selection) Mode. Key-in: REFERENCE CLIP BACK [ [filename] ] Key-in: REFERENCE CLIP BACK [ [logical_name] ] Parent topic: Working with Attached References