No way to edit config?

This may be my lack of knowledge, but I am not able to edit the config to change it from copying "Coordinates: x, y, z". I would like to be able to change it to just copy "x y z" to simplify it and easily use the teleport command, but editing the QuickCoordsCopyConfig.class to change what is copied breaks it, and Minecraft is unable to launch. Is there a method that I'm missing?