While it would be nice, that'd be a little more complex to add in due to it having to treat a single item like two (or more). The system would have to identify each armor as one of any number of available jobs/classes. Imagine, for example, if someone decided to use a crafting/gathering equip (which is all classes usable) and had a unique glamour design attached to it for each class/job in the game. That's currently up to 20 different identifications for a single equip.