[RMVX ACE] RUNNING ANIMATION

I'm using the $ modified spritesets to make my characters human proportion instead of chibi. I've been looking for a script to change to a different spriteset to make the character run instead of powerwalk when you hold down the shift key similar to the way the minimap script works. Does this already exist and I didn't find it in the map section? If it doesn't exist can someone make it?

Thanks!! I missed all these in my search.