Changing from overhead view controller to first person controller.

I’m trying to change from an over head view controlling my character as a pawn to first person view controlling it with WASD and I’ve found how to toggle the view change but I haven’t found any information reflecting how I would go about also toggling my player controls from click to move to WASD with the same toggle. If there are any old references I’m missing or new information I’d be grateful for a few links.