I am trying to make a video player in framer that is controllable with the keyboard. I've reached a point where I have the basic video layer, basic controls and a play head that tracks the video progress. Now I want to add scrubbing controls to the playhead. I have it working on mouse drag, but i want the keyboard controls to have acceleration, such that when you tap the left / right arrow keys, the playhead jumps 1 second, but if you hold down the right key, the scrubbing rate keeps increasing every x seconds. How can I go about setting up a function like that?