I cannot get the editor to work. I'm trying to grab the edges of the yellow edit marker to change it's length, but the edges aren't moving. There is no way to change the clip length. Am I missing something? I'm working with the footage that comes up automatically when I start the editor. Do I need to download anything from the P3P, and if so, how is that done? I've tried to watch the tutorial, but my editor didn't respond the same way.