Apple Final Cut Pro 7 - Manual (Page 415)

How Markers Determine Subclip Durations
When you drag markers out of a clip, a subclip is created for each marker. The duration
of a subclip is determined from one marker to the next. For example, a clip with four
markers produces four subclips. The last subclip created from a marker always contains
the Media End point of the clip from which it was derived.
Subclip 4 Subclip 1 Subclip 2 Subclip 3
Media End
The duration of a subclip can also be defined by a marker with extended duration. For
more information about creating markers with duration, see
“Extending a Marker’s
Duration.”
Marker with
extended duration
Subclips defined by
marker boundaries
Original clip
Subclips defined by markers
with extended duration
Original clip
Marker with
duration of 0:00
Creating Subclips Manually
If you have long clips, you can also break them into subclips manually to help you manage
your footage.
To manually break a clip into subclips
1 Open the clip in the Viewer.
2 Set In and Out points corresponding to the subclip you want to create.
3 Choose Modify > Make Subclip (or press Command-U).
A subclip appears in the Browser.
415 Chapter 28 Creating Subclips