Yeah, my buddy that I mentioned that did this very thing in BF3 and BF4 on PC, bound the d-pad to thinks like laser/light toggle, rate of fire toggle, scoreboard, and comms wheel. I think he had LB as grenade, LT as reload ( i think), and L Stick as a stance toggle, if I'm remembering correctly. I think some here, don't quite understand how PC gaming allows for so much flexibility and accessibility that attracts not only those who prefer to play however way they are most comfortable but also those with disabilities, it's a far more inclusive platform mainly because it allows for community efforts to create solutions for others more openly.