I've made it sofar that the position can change without keyframes. And was thinking to add a intertia bounce effect on the end.
Then to somehow make the control layer (slider control) say if you type '3' then go to '3160'.
Or is there a more logic way? Because, what if the are 3 digits... The last number should go faster then the first. (If you go from 3999 to 4000).