Using ClipView
ClipView lets you use an object as a "window" onto other objects. You see only those parts of other objects that are within the window. We call this creating a ClipView. You can move the window object to change your view. (The window object remains visible.)
The original objects:

With ClipView applied (the blue ellipse is the window object):

Note:
 "Paste inside" is the term used in some other packages for this feature.
 "Paste inside" is the term used in some other packages for this feature.
What do you want to do?
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