Editing : Editing Clips and Selections : Creating New Clips : Capture Clip Command

Capture Clip Command
The Capture Clip command defines a selection as a new clip and adds it to the Clip List. From there, the new clip can be dragged to any existing tracks.
To capture a new clip:
1 With the Selector tool, drag in an existing clip to select the material for the new clip.
 
2 Choose Clip > Capture.
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Press Control+R (Windows) or Command+R (Mac) for Capture Clip.
3 Type a name for the new clip and click OK.
The new clip appears in the Clip List. The original clip remains intact and unchanged.