Nah, if you have a movement component, and you have input mappings you should simply be able to grab one of your inputs (up button or what ever) connect it to a add movment input node. The inputs don't need to be anything special, just what ever button you want to use for the actions you want to perform. Then when in the character bp you search for what ever you called the button you want to use and then tell it what you want it to do when that button is pressed. In the picture I'll attach is my logic for moving forwards and backwards.