65Steps Screenshot3) Play a video.Click Play. By default, the device starts playingthe video from the beginning. You can set thestart point by moving the slider and thenclicking Play.NOTE！You can perform other operations through theplayback toolbar, such as Play by Frame, FastForward, Fast Rewind, and skip play by clickingand dragging the slider on the play progressbar. For details, see Table 6‐1 in 2 BackplayToolbar.Synchronous PlaybackThis function is used to play recorded videos captured by multiple cameras in the same time period so thatyou can comprehensively collect and analyze information for this period of time.Before performing synchronous playback, verify that the corresponding cameras have video resources.Steps Screenshot1. Right‐click a pane in the previewinterface. A menu is displayed. ChoosePlayback. The video playback interface isdisplayed.2. Query videos.Select multiple channels to be queried, set thestart time and end time, and click Query.3. Play videos.Click Play. The videos of these channels areplayed synchronously.NOTE！You can perform other operations through theplayback toolbar, such as Play by Frame, FastForward, and Fast Rewind for the videos, andskip play by clicking and dragging the slider onthe play progress bar. For details, see Table 6‐1in 2 Backplay Toolbar.
