You can add as many audio and video tracks
            to a timeline as you want. Video tracks can have multiple layers.
         
         To add a track to the timeline:
         
         
            - Do one of the following:
               
                  - To add a video track above the current
                     track, click   . .
- To add a video track below the current
                     track, Ctrl-click   . .
- To add an audio track, click   . .
- Drag a clip below the last track on the
                     timeline.
                  
 TipTo add multiple tracks,
                     type the number of tracks you want to add in the numeric keypad
                     before clicking the V+ or A+ buttons. You can add up to ten tracks
                     at a time using this method.
                   
To remove a track from the timeline:
         
         
            - Click the Selector icon, drag it to the
               bottom of the screen and release when the cursor changes to a green
               recycling icon.
               NoteTo remove all tracks, select Record Area
                     from the Item box and then click the Clear button.
                   
To move a track to another location on
            the timeline:
         
         
            - Drag the Selector icon to a new location
               on the timeline.