Wall paint finish schedule

[kmitotk]

When a wall has two different paint finishes (PT-1 on the outside face, PT-2 on the inside), how do you list them in a same column in schedule? Is it possible?
I'm just trying to generate a simple wall finish legend with finish ID and description using the element property and expressions but it seems impossible..

[kmitotk]

Actually, it's not just the walls, what if there is also a beam with paint PT-3 on the side face and PT-4 on its bottom face, and yet another paint PT-5 on the ceiling, how do you bring all of them, multiple property categories from multiple element types, into a single finish legend list? Is there a magic expression formula that enables this?

The surface based schedule could have worked as it merges all the surface material info in the project into a single list, but surfaces cannot have custom properties, so no finish ID, description, supplier info, etc. can be associated and extracted in the surface schedule.

With AC23 the Building materials can now contain custom properties which is a big step forward. But paint, as well as coating & wallpaper, doesn't normally get thickness in a BIM model and thus not treated as building material. So the building material based component schedule doesn't seem to work either.

Finish ID & Legend is a very basic documentation method commonly done in everywhere, why is it so difficult, or not possible?, to do it in a "BIM way" with ArchiCAD?

I'd really appreciate it if someone could show how to do it.

Thank you,