[Question] Is it possible to add stuff to the game?

[AlphaKitsune]

So I've been looking at all the mods and many of them re-skin random items in the game. Is it possible to actually add content to the game like gestures and layered armor? If we can take an outfit for the handler and modify so that it looks a certain way-can we not make a copy of all the outfit's files and change them, then add them to the list like it's DLC?

[Irisena]

I think we can only work from available IDs. making new content basically creating new ID. That said though, the code for layered armor for transmog still have a lot of room left, and the armor IDs only reached to 120.. idk, the only way i can think of to test it is just to name the armor ID 121, and try transmogging it 1 by 1 to see if it catches anything.