There is a ReSpar script that works, but then again with that you have to restart and have the script play through until you get to where you want.
Making a command in-game for, for example.
/set frame -10
And you move back those 10 frames for whatever reason you'd need too.
But again that's probably some tough coding, but I also have no idea if it is or not.
Etheir way hope to see something like this happen.