ArcSoft SHOWBIZ 2 User Manual page 29

Chapter 3: Edit
the timer to the spot where you want the split performed, then
right-click the video component on the Storyboard or Timeline and
select Split. You can recombine two split videos by selecting them
both on the Storyboard or Timeline, right-clicking, and selecting
Combine.
Delete – Removes the selected clip(s) from the
Storyboard.
Record Audio – Opens the Record Audio window. See
Section 7.2 for more information.
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