Apply/Remove ClipView (Arrange Menu)
This option reads:
Apply
ClipView when there are two or more objects selected.
Remove
ClipView when there is a ClipView selected.
Apply ClipView:
The rear object in the selection (the object behind the other selected objects) "clips" or "masks" the other objects. (The effect is similar to viewing the other objects through a window the shape of the rear object.) See Using ClipView for more details.
Remove ClipView:
Remove any clipping applied to the objects in the ClipView.
Movie—click below (not working in this version)