Is it possible for 2 or more different systems of emitting particles to collide with different colliders?  I had trouble knowing if this was possible with stardust. I basically want 2 or more emitters but I want to tell each emission of particles to collide only with colliders that I say they collide with independently.  All the while, I still want the partciles to bounce off each other.  Thought I could do this with the model node and add a physical node set to a mask from a solid layer in AE but it didn’t seem like I could make a system that included the model and physics nodes for collision within the same system that had the particles in it.  In fact I think things crashed when I did.  Does this make sense?
2 or more systems of particles.  I want each system to bounce off of different colliders all the while keep the particles bouncing off of each other.  Seems like every collider no matter what I do applies to every particle that passes it and I want only what I say to bounce off of the colliders I designate.