A:AnswerI can use it to turn the switch on. You need to have the functionality to wake up the TV on setup on the Nintendo Switch. And it only works when the switch is docked
A:AnswerNo you can’t change the buttons with the Pro-Controller unless the game your playing allows it. But it does feel better using the Pro-Controller because the buttons are much bigger making it feel a bit more natural to use A as the jump button for a Mario game.