Locking and Unlocking the Duration of a Clip

You can determine whether or not frames are added to the end of a clip.

To add frames to the end of the clip:

1. Click Setup.
2. Enable Extend Clip.
   
3. Click Next Frame.

   A frame is added. You can continue to add frames in the same manner with Extend Clip enabled.

   Tip: To maintain the length of the original clip, disable Extend Clip. No frames are added to the clip when you click Next Frame.