Once you have loaded
            a sequence, you can play it by clicking on the Play
               Sequence Toolbar at the bottom of the Workspace.
         
         The Play
               Sequence Toolbar from left to right is
            described below.
         
         
            - First Frame -
               Navigates to the first frame of the sequence.
            
 
            - Previous Frame -
               Changes the current time to point to the preceding frame.
            
 
            - Play Reverse -
               Runs the play segment backwards. 
            
 
            - Play/Stop -
               Runs the play segment forwards in the current view. The play segment
               is either the frames contained within the selection, if any, then
               in the Work Area, if any, or all the
               frames of a sequence. Other views or controls are refreshed only
               if the hardware performance allows it. 
            
 
            - Next Frame -
               Changes the current time to point to the next frame of the sequence.
            
 
            - Last Frame -
               Navigates to the last frame of the sequence.
            
 
         
         You can also play the
            sequence forward or in reverse by selecting Sequence > Play or Play Reverse or
            skip untracked or unsolved frames. See 
                     Skipping untracked frames and 
                     Skipping unsolved tracks.
         
         Selecting a Play Mode
            
            You can determine how
               a sequence is played by selecting Sequence > Play Mode and
               selecting one of the following options:
            
            
               - Normal - Plays
                  the sequence from the current frame and automatically stops the
                  playback when the play segment limit is reached.
               
 
               - Loop - Continuously loops the
                  entire sequence or a segment of the sequence (if a Work
                     Area is defined).
               
 
               - PingPong -
                  Continuously loops the entire sequence or a segment (if a Work Area or
                  a time range is defined) forward and backward.
               
 
            
            Alternatively, you can
               press the corresponding options in the Navigation Toolbar.