https://fab.com/listings/e57d496f-f8e5-447e-86dc-8efdb55e8add

This tool aka PBG allows you to assemble your custom, marketplace and Quixel Megascans modular meshes to procedurally create structures and buildings easily and faster with full artistic control and plenty of options using grammar based approach! Save yourself a ton of time when creating buildings and structures with our tool.