Apple Final Cut Pro 5 - Manual (Page 400)

Chapter 4 Using Markers 65
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To move a marker in a clip forward by repositioning the playhead:
1 In the Viewer or Timeline, move the playhead to the location where you want to move
the marker.
2 Do one of the following:
 Choose Mark > Markers > Reposition.
 Press Shift-` (the accent key).
Final Cut Pro moves the marker that is immediately to the left of the playhead’s current
position. Even if there are multiple markers, only the one immediately to the left of the
playhead is moved.
To move a marker in a clip by entering a new timecode value:
1 In the Viewer, do one of the following:
 Move the playhead to the marker, then do one of the following:
 Press M.
 Click the Add Marker button.
 Choose Mark > Markers > Edit.
 Press Option-Command-M to edit the nearest marker to the left.
2 In the Edit Marker dialog, enter a new start time in the Start field, then click OK.
You can only move a
marker forward, not
backward.
Enter the new time here.