Instead of the drop down options of Interior, Exterior, Core/Shaft, Retaining, Soffit and Foundation, allow for users to add different options.
Or at least add a finish option.
Here are some functions I'd like to see
Please also vote for this related idea https://forums.autodesk.com/t5/revit-ideas/finish-wall-function-and-join-behavior/idi-p/7476454
party walls or demising walls
partitions
linings
fit-out
or simply allowed to be customized