The door and drawers are examples of how to get it working, not an all in one solution that provides auto scaling to correct size with new meshes. I make the assumption that people will not use base color low poly example content in a finalized game.
The walk through door frame isn’t required, it was only added because the door was by itself, it is a child actor on the door actor.
The drawers can be a VRSliderComponent that you set maximum limits on and they should just “work”