Not sure what you mean by support, the engine already abstracts away most interfacing, the plugin doesn’t do anything special except for the additional module for OpenVR extras.
However, if you mean make a default controller profile for it, yes I intend to do that for all controllers.
Plenty of people attach the hand, you can even directly get the correct offset by breaking the grip structure and inversing the RelativeGripTransform. RelativeGripTransform is the wanted offset of the object to the controller, inversing it makes it the offset of the controller to the object.
In the case of a socket snap grip, will end up being the socket location even.
Though you could always have sockets for HandMeshs on the objects as well to tailor it specifically.