I'd like to toggle the surnames that some characters obtain if they gain certain traits, for instance in my second Seleukid campaign the faction leader Theodoros Syriakos has become Theodoros the Navigator and I'd like to remove that "the Navigator" and restore Syriakos, or at least modify the name and replace it with another surname (i.e. "Megas" since I/he conquered many lands or similar). I don't know how to do this so I ask you for any advice.