Apple Motion 2 - Manual (Page 284)

284 Chapter 4 Using the Timeline
Insert
When you choose Insert, Motion leaves the existing object in the track, but pushes it
forward in time to make room for the new item. For example, if you insert a five-frame
movie into a layer containing an existing object, the new movie is added to the
Timeline at whichever frame you drop it, pushing the remaining frames of the original
movie out five frames.
If you insert an object midway through an existing object, the existing object is split
into two objects, each on its own track.
Overwrite
The Overwrite option deletes the existing object, overwriting it with your new object.
If the new object is shorter than the one currently in the layer, the Overwrite option
splits the existing layer and deletes only the frames where the new object appears.
Before After
Before After
Before After
01112.book Page 284 Sunday, March 13, 2005 10:36 PM