Apple Final Cut Express 4 - Manual (Page 505)

Chapter 33 Performing Slip, Slide, Ripple, and Roll Edits 505
VII
To roll edit points on multiple tracks simultaneously:
1 Do one of the following:
 Press the Command key while clicking to select multiple edit points.
 Select the Edit Selection tool in the Tool palette (or press the G key), then drag to
select the desired edit points.
2 Use the Roll tool to perform the roll edit across all of the tracks.
Before
After