I think a useful feature would be to synchronize a screen change with a content item on a timeline. For instance, if I have a video on the timeline that I want to play full screen, but I have MRSS components in the timeline before the video, I can never be sure at what timecode the video will play to set my screen division change accordingly. This "link" would force the screen division change to only occur when the content item starts. My workaround right now is just to use a separate timeline, but that gets to be problematic if using the scheduler instead of the sequencer.