If you use Clipping Planes and assign them to Layout Details, here is a tip for adding a Title to the Details Properties. This helps you identify the proper detail to be assigned to a clipping plane.
You can add a custom name to the Title in the Detail “viewport” Properties .
Then when you are in the Clipping Plane Properties , you will see the Viewport Name in the list of Details .
See the video here.
Mary Ann Fugier
McNeel Technical Support and Training