Maybe, like there are 4 Weapon Set, there should be 2 Accessory Set.
These should be able to swap the whole Amulet Accessories and Rings (swaping boots and cape in combat is weird...)

This idea comes from my problem of dying rogue, I think if I equip him as a warrior (AC, life) rather than a rogue (all in Dex, Wis and Int, and some in Cha), he will more survive the battles.
So, I had begin to think about changing his stuff, one for dungeonning, one for battleing.