Zone Manipulation Question

My goal is to have an asteroid zone shaped like a ring where the center does not spawn dynamic asteroids (DA) or particle effects. Of course, the standard method would be to use an exclusion zone but unless I am not aware of it, it can’t prevent DAs and particles from spawning in said exclusion. I have tried using a ring shaped zone, which accomplishes what I am looking to do but, it fails to appear on the navmap. Is there any way for me to have my cake and eat it too? Hahaha. Thanks for any advice you can give.

Well, it looks like I found my answer in the form of exclude_dynamic_asteroids = 1. I was not aware that was an option so my apologies for not finding it sooner before posting.