I’m struggling to figure out how to sort lists/trees, and I’m hoping for your help.
So, looking at the image below, I have “LIST A” which should be used to reference “ITEMS A”, and “LIST B” which should be used to reference “ITEMS B”. EDIT: Items are geometry (IFC Walls).
Then separately I have the “MAIN LIST”.
What I’m looking to achieve is to combine “A” & “B”, then to obtain separate sets of items for each of the values in the “MAIN LIST”.help.gh (34.4 KB)