Cosmetic Threads in Assemblies

I have a pretty complex assembly with quite a few threads.

When I shade my model, all of the threads show up.

I have RC on them and hid them, but that only lasts for the

session.  Does anyone know how to put them in a position

to conveinently be turned on or off?  Collectively?

I have looked into layers and I haven't been successful with that.

Thank you.

SolidworksApi macros