UCX tag STILL not working with max 2016 and UE4.9.2. HELP!!!!!!!!!!!!!!!

I have watched videos and tried many different things. Making a box collision is to easy and doesn’t need max to make that but when it comes to like stairs or doors that open and close, I need 3ds max to be able to handle the collisions so UE4 doesn’t have to make them. As of right now I am putting in stairs and giving them a auto convex collision so I can use them but I know there is a much better and more efficient way to do this. I have looked at other forum posts here and still nothing. Attached is the 3ds max file as well as the FBX file I am trying to use. They are not textured yet.

IGNORE… I got it… Same name means everything… /cry