How to program the oculus controller?(a, b,x,y buttons mostly )

Hi, I am using godot 4 and I’m using Openxr plugin. I need a help how I can program the a,b,x,y buttons of Oculus controller. I use the action pointer child scene where I can use the trigger_click button . But I want to give more feature to the other buttons.

You need to use the XR action map