ArcSoft SHOWBIZ 2 - Manual (Page 22)

Chapter 3: Edit
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3.2 Player
The Player consists of the preview area on the right side of the
screen and all the controls below it. Use the Player to preview and
trim your video clip as you compile it. The Player contains
standard play/pause/rewind buttons, along with other controls
that depend on what you are previewing or recording.
The Player can play back either selected clips (Active Clip) or the
entire movie on the Storyboard/Timeline (Entire Project) when
you are in the Edit module.