Oops! If you didn’t really mean to delete that clip, don’t despair. Just like word processors (and many other computer programs), video-editing programs let you undo your actions. Simply press Ctrl+Z (Windows) or Ô+Z (Macintosh) to undo your last action. Both Pinnacle Studio and Apple iMovie allow you to undo several actions, which is helpful if you’ve done a couple of other actions since making the “mistake” you want to undo. To redo an action that you just undid, press Ctrl+Y (Windows) or Shift+Ô+Z (Macintosh). Another quick way to restore a clip in iMovie to its original state — regardless of how long ago you changed it — is to select the clip in the timeline and then choose Advanced➪Restore Clip. The clip reverts to its original state.
