Upgrade the way to work with time remapping
Time remapping in Premiere is very uncomfortable to work with. For example it would be nice to work on your time in a separate window/panel designed for it. The adjustments in the timeline can be very frustrating. Another big point is the missing anchor point. It's kind of a guessing game sometimes where your remapping lands.
ilhan palayret commented
Time remapping is really something that I would like to do easily inside premiere pro but the clip AND the anchor points are moving each time you do an action. It should be possible to work on the speed of a clip, let's say : fast, slow, fast, and when you added all your keyframes THEN everything moves (clip length and keyframes)