hi yall
I’am new to dynamo so not used to many kinds of nodes
so in this pictue
I want to have each list of external walls -[W01, W02]and internal walls[P01,P02]
I already made a model has walls name maked as W01, W02,P01,P02 …blahblah
So in the end i want to get /sum of internal walls area/ and /sum of external walls area/
Thanks a lot