Hello. I have a bit of an issue in using iMovie since I upgraded my OS to Yosemite. Before the upgrade, iMovie usually had a window divided into 3 different panes. One of which was a timeline where you could drag/drop a video clip for it to be edited. However, after the upgrade I can't seem to find this feature! I don't know what to do as I've been using iMovie for my video projects for about 3 years now, and this change takes place as I was getting used to it. It almost confused me when upgrading to Maverick, but not as much as this. How do I get it to look the way it did before? I don't want to have to find a replacement app for my video editing.