Where to go to make a form request?

Idk where to put this in category, but hey ya’ll. I’m new. I was wondering if I couldn’t make a form request to make or allow hotkeys to be selected for the controller? It should already be an option imo.
Like when you go to controls, hotkeys tab; it wont let me select a button on my controller for the restart button. I was at a haircut salon for different hair style reset lol in Pkmn Sun & it was kinda annoying me a bit to switch back n forth from mouse and keyboard to controller.
I would like to be able to hit the UP Dpad on my controller as the restart hotkey.