See the post below for all the details on how I attached it. 3 months later and it’s still holding strong and I still love it.
I use the XBOX controller for several functions, although most related to camera views. In the cockpit, the right analog stick is for free look. Left isn’t used (yet). D-Pad is used to translate views (move around the cockpit like arrow keys on your keyboard). I have a “shift” function via the left shoulder button, and the D-Pad becomes my ATC commands 7-0 (1-6 I have on the yoke). ABXY show VRF map, and toggle external and drone views. I haven’t found use for the other buttons as of yet.
Otherwise, it’s used for drone camera control mostly.
EDIT:
Also, I eventually switched to using the controller in wired mode. In wireless, it will eventually go to sleep if not used after X minutes, which causes a 30 second pause in the sim as, and then another pause when it reconnects when you use it again.