If you want to change a player's name you will have to do it with an hex editor (go to the RAM editing thread and ask for help there, this thread is for the RAM/save editor ;-)). You will need to replace all coincidences of your name and ID, it's very important.Egh, nevermind. Was thinking of something else.
Hey, can you tell me exactly what I need to do to change a villager's name and/or appearance if I can with any existing tool(s)?
If you talk about neighbors' names, that can only be done through ROM editing.