During that times that I used Switch with either a USB-C to USB-A adapter or official dock, I found out that USB keyboards can used whenever text input is required. That is, whenever the on-screen keyboard shows up, a USB keyboard can be used there as well (there is a setting relating to them as well). However, instead of having to buy an entirely new controller, is it possible that I can use USB keyboards to navigate the system menu and play games with them? I've tried to navigate the system menu with one before, but it just doesn't seem to work. Could this be something the CFW can handle?