If you are mapping in the "Controller Mapping" page you just hit both buttons together. For example (the button numbers here are just random and may not be your specific buttons) It will reflect as: Close Active Window Button 8+Button 7
If you are mapping in the "Controller Mapping" page you just hit both buttons together. For example (the button numbers here are just random and may not be your specific buttons) It will reflect as: Close Active Window Button 8+Button 7