Set Reference Front Clip Plane
Used to set the front clipping plane for a 3D model. For more information,
see To define a reference front clipping
plane (3D only).
| Tool Setting | Effect | 
| Use Reference Dialog List | If on, the models selected on the References dialog box
are used to set the front clip plane. 
 | 
| Use Fence | If on, the fence contents are used to set the front clip
plane. The option menu sets the Fence (Selection) Mode. 
 | 
Key-in: 
REFERENCE CLIP FRONT [filename]
or
Key-in: REFERENCE CLIP FRONT [logical_name]