That will be implemented, my main objective at the moment is to allow restrictive logical construction that can be easily adapted to varying building item.
I.e foundation go down first walls on them, floor/ceiling built on top of walls (if limits allow, i.e no wall in range then no floor). Then windows, doors wall modifications next.
I have a pod similar to the ones in (subnautica) which can snap together, but there is no legs yet. These currently don’t use the above which what I would like.