Hello -- I'm using this asset in Godot (so using the FBX zip).
I see in your screenshot an example with a door. Maybe I'm blind or losing my mind -- but I cannot find a wall that has a space for a door. Did you have to build out a custom wall from say three pieces for that example?
Actually, looking at the screenshot with all the pieces laid out, I see a couple with doorframes built into the wall. I can't find the FBX files for these. Mind pointing me to them? Sorry!!