Apple Final Cut Express 4 - Manual (Page 735)

Chapter 47 Changing Motion Parameters 735
IX
10 Select the Basic Motion checkbox, then click OK.
The two clips occupy the same position in the Canvas, but the clip on track V3 takes
precedence and appears in the Canvas.
Although you want to keep the size of this new clip the same, you want to position it in
the right corner, as a mirror image of your original clip.
11 Double-click the clip on track V3 to open it in the Viewer, then click the Motion tab.
This setting is the only
attribute you want
to copy.
The new clip on track V3
now has the same
motion settings as the
clip in track V2.