I saw something already posted using BetterJoy and CemuhookUPD but no specific instructions, and I'm not sure how to do it exactly. Help would be appreciated!
#Mapping Right Pro Controller Stick to Touch Controls?
steady bay
hard kayak
What exactly is your goal with mapping the R stick to touch controls?
If you just want to be able to touch specific parts of the screen by inputting a specific direction or pressing the stick as a button, then you can go to the Motion / Touch settings in your control scheme. You can set a particular controller input to click on a specified (x,y) coordinate of the touch screen.
If you want stick movement to smoothly touch scross the screen like a mouse cursor, I'm not sure how to that.
Maybe this is what you're looking for? https://www.reddit.com/r/Citra/comments/qttm3h/is_there_anyway_to_control_and_touch_screen_with/
Someone else may be able to provide better help. 