When you clone an object, you create a copy of an object
that is linked to the original. Any changes you make to the original object are
reflected automatically in the clone. Changes you make to the clone are not
automatically reflected in the original, however. You can remove changes made to
the clone by reverting to the original.
Cloning lets you modify multiple copies of an object simultaneously by changing
the master object. It is especially useful if you want the clone and master
objects to differ by certain properties, such as fill and outline color, but
want the master object to control other properties, such as the shape.
If you simply want to use the same object in a drawing multiple times, consider
using symbols, instead of clones, to keep the file size manageable.
The star on the left was cloned twice. Different fill and outline properties
were applied to the clones. The clone on the right was also reshaped.