Avid, I didn't think it had ever been possible to rename NPCs. Whatever name they were spawned with has always been locked, as far as I was aware. When they were first introduced you could choose the name, yes, and the new CP Customs allow you to choose the name. But renaming? No.
____________"May the Grace of Ara go with you, and His Vengeance be wrought upon your enemies."
Only fools and children dream of heroes.