Hey, I just have a quick (and most likely) obvious question about editing footage. I'm working of a movie out of order (based on what footage I get when). I finished one part and want to add a part before it. Is there anyway I can add it without overlapping causing me to have to move the other footage down and mess up my timing? If not, is there a way to lock some footage together so if I move it, it all moves together so I don't lose the timing? Thanks!