Answered: Using Vex parts to activate buttons from back of controller

So along-side Antichamber’s question about adding 3D printed button extenders here, if that is not legal are we allowed to add legal vex parts accomplishing the same idea, as in this video? Just want to be sure, rather than be surprised at states/worlds.

Yes, this is legal, provided that the parts are attached to the Joystick in a way that doesn’t include any modifications to the Joystick itself (e.g. cutting or drilling).