Apple Final Cut Pro 7 - Manual (Page 161)

Chapter 8 Adding Video Filters and Transitions 161
Create handles at the beginning and end of the clip by setting an In point and an Out 8
point similar to the ones you see in the illustration.
Leave about 2 seconds of unused footage at the beginning of the clip.
Place an Out point here.
Place an In point here.
Make sure the Linked Selection button is light green to show that linked selection is 9
turned on.
Linked Selection button