It'd be nice to be able to filter out/view only certain timelines or transform properties in the dopesheet.
Sometimes, I want to focus on just the image swaps, or just the rotations, and everything else is just distraction.
This also helps when I need to move all the image swaps and other instantaneous changes to an earlier point in the timeline while leaving the other properties in tact. If I could filter out the other transform properties, I could just drag handles in the dopesheet summary row.