Clone (Click)
From Mario Fan Games Galaxy Wiki
A clone, as opposed to a duplicate, is an entirely different object from the object it was originally derived from. Clones inherit all the settings of the "parent" object, but those settings can be changed without affecting the "parent".
Clones, of course, have their own entry in the Event Editor; they are no different than any other non-cloned separate object, apart from the settings they inherit.