Oculus Go - Grabbable / Grabber not working

I've tried following a couple tutorials for grabbing and finally found the Oculus sample framework called 'Room.' This is a room of cubes that should be grabbable and it builds just fine. I can move the "cube hand" just fine. I can inch forward and backwards on the Oculus Go controller track pad. I can't figure out how I should be grabbing things.

One thing is that the OVRGrabber script has the 'R Touch' controller selected and the Go doesn't use the Touch. I tried selecting 'All' But no luck there. Is there some script that needs to be edited to allow for the Oculus-Go controller to grab things?

Thanks!