Can't believe we're the first to post a reply to this thread.
This sounds like a cool idea, but wouldn't it be easier to offer the "poser" catagory into 3D Models instead of moving them around?
For instance, say that someone already has their Poser related items set in the "3D Models" catagory (as we do on some), all they would need to do then is just uncheck the un-needed sections and click on Poser. Same thing for texturing, etc. Just a an idea.