I have managed to get a drophead coupler working on my translator wagon, but some of the animations don't work. The pin moves on the Mk1 BG coach coupler, but not on my translator. The skeletal mesh and anim class are the same as the Mk1 BG coach, and all the coupler components in the RVM and RVV are named exactly the same. I'm guessing I need to do something in the event graph, but I don't know what.
I'm the animation blueprint for the coupler you would setup a virtual vhid I believe where you set the animation to play for the interaction component that should scrub through the animation. If your using dtg couplers you should have everything there to have it work tbf