I made my system work but without being able to have child actors in blueprint it was too horrible to level design these chunks of level i was using,
so until that happens, i stopped work on it.
Rotwang, look at this http://theantranch.com/blog/the-cauldron-a-random-dungeon-generator/
this is the reference i followed Bake Your Own 3D Dungeons With Procedural Recipes, the only issues i had was with my knowledge of the structure of Unreal.
The example uses Unity, and unity uses a solution called prefabs that are better suited to this kind of workflow.
The blueprint editor will improve, as its on the trello, but it could be some time. you could always try another method.