Turn controller mapping off

Turn off use of controller(disable all button presses) so that only keyboard is recognized when youre playing bedrock from PC and using a button mapper it doesn't register the raw info. This means the A and B buttons also won't work as Accept and back. Or allowing the controller button presses to be registered on the keyboard side of things but also removing the A and B as accept and back. I personally use the start button as inventory and using the built in button mapper that isn't achievable.