I believe: You copy paste the line entrys in this link.
Go ingame. Open your local chat line.
and Paste the Line you found for the button you want to set on the Xbox wired controller.
You will find the line like this. /bind Joy8+Xb genbuttonclick powerlevel_preset_0 (power preset Attack)
Paste each of them into your chat bar and enter. Ive not tryed it yet. The game is down. Its time well spent.