I use a lot of "tracks" on the video timeline. It would be wonderful to have better track management tools to make them easier to manipulate while editing. I spend a lot of time locking, hiding, unlocking, and unhiding individual tracks to focus on or isolate the main background video track, usually a screen recording. It would be great to have a feature to lock and unlock all, hide and unhide all, but allowing the editor to manage single tracks. Going through 5 minutes of timeline, sometimes at frame level, and repeatedly locking and unlocking 16 tracks individually hundreds of times is not my idea of fun.