possibility to interrupt connections between Virtual Pawn Controllers and actual Motion controllers?

I need to make it so that when I grab a 2 handed sword with my second hand, the second hand is locked to the object until I let go.

In-order to do this I need to figure out where in the template project the code is for moving the vr hands relative to the actual motion controllers. I need to add a branch node so that when I grab, the hands stop receiving input until I let go.

Any ideas?