Is it possible to mark static meshes to not have foliage spawn on them?

Hi, I’m using the procedural foliage spawner tool to add static mesh foliage to my world.

My world is built up of both a landscape and static meshes (cliffs and such), so I have the spawner set to both spawn on landscape and static mesh.

foliage spawenr

I also have a lot of static meshes in my world that I don’t want foliage spawned on. Is it possible to mark which static meshes can / cannot spawn foliage on top of? I currently plan on just painting out all these areas manually, but if I decide to add another piece of foliage further on, I’d have to resimulate and paint everything out again. I was wondering if there was a more streamlined process to this.

Thank you!