I had a lot of requests for going over the custom grips. Here I talk about a basic, and then more advanced setup for them. Sorry about the second half, I was having trouble figuring out how to dumb down the multiplayer transform inversing and relative space stuff and explain it clearly. I may do a follow up at some point when I have more time to think about it and have some questions on hand.
This was a last minute thing as several users had need of this feature.
The template has the example content in it for reference.