How do i know when I am animating in grease pencil and when I'm moving around the whole animation

So I’ve managed to animate some stuff but sometimes when I move stuff around it messes up the whole animation.What i mean is the action doesn’t just apply to the keyframes I’m trying to make.

So lets say my character is doing a flip and I’m putting in some rotation keyframes then the whole animation timeline does a rotation instead of just the part where he needs to flip.