Set the source file's begin and end point

  1.Set begin point:

choose the begin point of the file and Click 'Set Begin' button.

  2.Set end point :

choose the end point of the file and Click 'Set Begin' button.

  3.Set Preview Point:

choose the preview point of the file and click 'Set Preview Point', accordingly the miniature of Movie Clip will change to the preview point in Clip Mode

  4.Set Clip Name

Set Movie Clip name, convenient for identification in editing.