Question about pivot points and placing objects in my scene.

So I’ve made a structure in blender with halls and rooms and spaces for doors. The doors are separate meshes. The main structure is fine. I can just throw it into the scene. However the doors I find hard to position properly. I can eye ball it by putting the doors as neatly into the frame as possible. But I’d rather get the doors in exact places. In blender I could easily move the doors to the exact centre of every frame but there’s no way to do it in Unreal. Placing the doors exactly and importing to Unreal means their pivot points are way off. What options do I have?

what you want is to export the scene as datasmith