Apple Final Cut Pro 7 - Manual (Page 571)

4 Release the mouse button to place the selected clip at the insertion point.
Clip D moves here. Clips A, B, and C move
right and fill the gap
left by Clip D.
After
Important: Shuffle edits are only possible if you move a clip item beyond the boundaries
of its original position. If you don’t move a clip item far enough, pressing the Option key
while you drag the clip item allows you to perform an insert edit, but not a shuffle edit.
Copying and Pasting Clips in the Timeline
You can use the Copy, Cut, and Paste commands (or their keyboard equivalents) to arrange
clips in a sequence. You can also copy clips by Option-dragging.
Copying Clips by Option-Dragging
Copying by Option-dragging provides a fast, visual way to duplicate a clip in a new
location. There is no need to position the playhead.
To copy a clip into another location in the Timeline by dragging
1 In the Timeline, select a clip item.
2 Hold down the Option key and drag the clip item to the new location in the Timeline.
You can also make duplicates of sequence clips by dragging them from the Timeline to
the Browser. These copies are affiliate clips that include any changes you’ve made to the
clips in the sequence.
571 Chapter 38 Arranging Clips in the Timeline