Get hand's rotation around component's z rotation

So I am using the VR Template, and I have a valve that I would like to grab and turn it based off of my hand’s rotation along the valve’s z axis, if that makes sense… so rather than the hand using it’s own rotation axes, it uses the valve’s relative rotation axes

Any Ideas?

You need to copy the rotation of the hand to the valve, basically. But… there’s a lot that can go wrong here, and it really depends on how you’re doing that / what the setup is.

Or, detect some sort of Z rotation of the hand, and apply Z rotation to the valve.