Apple Final Cut Pro 5 - Manual (Page 600)

Chapter 16 Working With Multiclips 265
II
Example: Creating Multiclips Using the Overlapping Timecode
and Minimum Overlap Options
When you adjust the minimum overlap percentage value, the multiclip grouping is
automatically updated. When the starting timecode numbers of each group of angles
varies significantly, this method is often faster and more intuitive than the Use Starting
Timecode option.
Minimum Overlap Is 100%
When the minimum overlap is set to 100%, only clips with exactly matching timecode
numbers are grouped together.