I read this comment in a post on the Hog4 forum and it seems like a good idea. I would add that virtual parameters could be added to all fixture profiles instead of merely having designated fixtures. As with the virtual dimmer, other virtual parameters could be useful to extend and interact.
"Why dont we just make a "virtual fixture" where we can trigger any kind of command: midi, OSC, RS232 via ethernet etc etc....
Patch it, configure it, and have one or two encoders like file and folder plus a trigger"