Idea: Archwalls for any Wall Type

[Alkenix]

Heyho.
Haven't found an idea area so I hope it's ok to post it here:

While mapping I placed myself <brush name="wooden wall arch"/> in my tileset to have an easy time with wooden walls, like I basicly have with plaster- and brick walls. ~Ofc.. I've configured the walls.xml as well.
Now I tried to get the <brush name="plaster wall arch"/> working on stone-, egypt stone- and sandstone walls as well but it didn't work.
Same for my new <brush name="wooden wall arch"/> and the ornamented walls.

My question:
Is it even possible to get it working or do it needs a new id for each wall type combined to?