If pstemarie means painting creatures into the area directly and modifying them using properties, and I think that's what he was saying, then no, that's not how it works...
That's exactly what I'm saying. I painted them in the toolset, altered the appearance, and voila...the appearance is randomly changing back to the default template appearance. You can walk in and out of that area 100 times and each time you enter random bar patrons will have the default appearance.
This is the only template exhibiting this behavior. I have a custom OnSpawn that stores a "job" variable on the creature, but nothing that randomizes appearance. BUT, as stated above, my "solution" proved to be creating different templates - one for each appearance I was using. Thus, instead of one "Patron" template, I have six templates.