Apple Final Cut Express 4 - Manual (Page 366)

366 Part VI Rough Editing
To perform an insert edit:
m Specify the necessary edit points and destination tracks, then do one of the following:
 Drag a clip from the Viewer or Browser to the Insert section of the Edit Overlay in
the Canvas.
 Press F9.
After the edit, all clips on all unlocked tracks (including nondestination tracks) are
moved forward in time, from the playhead position to the right, to make room for the
clip or clips being inserted.
Insert section of
the Edit Overlay
in the Canvas
Before an insert edit
After an insert edit
New clip is inserted.