Project floorplan on boxes

Hello! I need to project an interior unit floor plan on a apartment layout. the components I’m working on are highlighted in yellow

My problem are the boxes downward right.

4PH.gh (26.0 KB)

What about them?

the main issue is that Point Group outputs single points as independent groups (A)

when with List Item you pick the first and the last item from those branches (B) they end up being the very same point, and it results in vectors with length zero (C) used to align planes (D) which do not get aligned to anything

I see, I’ll try to repair those. Thank you!