BP for Cave generations with static meshes

Hi!

So a while ago I had seen a tutorial on generating structures with static meshes. This person used it for more of a city builder.Anyways, I can not find that tutorial anymore after hours of googling and forum searches.

What I want to accomplish is to set up my static mesh pieces into an array and build a BP to set certain sized cave system. example: T sections, I sections, X sections, Rooms, Total Size, etc… Where I’m lacking is getting off the ground with setting everything up.

My question is, does anyone know a good tutorial that is similar enough that I can build upon it to suit my needs?