Design Ideas Portal
The cumulative area calculation discounts everything before a flow through structure and the nodes attached to the structure.
LLFA's are now requesting calc files due to the print out also reading your incorrect pathing of calculations. Theirs no way to verify site wide contributing area other than manually calculating using the calc file.
this is not an idea, it is a problem that needs fixing.
Not seen this implemented yet. Unsure why is needs to go into an ideas folder submitted by users in their own time. I've had conversations with your staff with examples on screen yet directed here.