Please add the ability to automatically set the playback/render range to match the length of the clip(s) in the timeline. I often work with looping animations and I constantly have to zoom in on the timeline and manually drag the start and stop flags to match the start and stop points of the clips. It would be helpful to have a button to "Trim start and stop range to all clips" and "Trim start and stop range to selected clip". With keyboard shortcuts as well.