I am an old gamer, been playing since the 70's. I want to be able to assign my right stick on my controller to my mouse. I use a controller in my left hand and a mouse in my right. The game I play glitches sometimes when I split the controls to a controller and a mouse. If I just use my keyboard and mouse or if I just use the controller everything is fine. But sometimes it will lose the mouse when I split the two and then I have to switch to the controller/Keyboard part way through a match. I think if the the game I play thinks the input from the mouse is coming from the controller it will fix the problem. I have tried a couple of emulators but it doesn't help.