Apple Final Cut Express HD: Getting Started - Manual (Page 72)

72 Chapter 4 Basic Editing
After the edit, all clips on all unlocked tracks (including non-destination tracks) are
moved forward in time, from the playhead position to the right, to make room for the
clip or clips being inserted.
3 Save your project.
Superimpose Edits
Superimpose edits are used to overlay titles and text onto video, as well as to create
other compositing effects. You can use a superimpose edit to quickly stack a source clip
(the originally captured clip) on top of any clips already edited into your sequence in
the Timeline in preparation for further editing. If there isn’t an available track in your
sequence, Final Cut Express HD creates a new one for the source clip.
You can set the In and Out points in the Canvas or Timeline so that the superimpose
edit spans multiple clips, as long as there’s enough media in your source clip to cover
the specified area.
Before an insert edit
After an insert edit
New clip inserted