so far I have found that in order to to what you want you will need to combine your mesh into an actor it’s a little backwards but it works, even crazier is you can actually place actors in actors. First make your door as an actor and place in into the combined mesh actor. This seems to be the only way I have found to make crazy large meshes look good, not have overlapping uvs and have functions. The problems are as an actor it is susceptible to your code so make sure that you don’t have anything to kill it. I would like to know if anyone has come up with a different solution.