Apple Final Cut Express HD - Manual (Page 474)

474 Part VII Fine-Tuning Your Edit
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