/cmodify for towns is supposed to be a thing (I posted a bug report on it). I was thinking, it'd be nice to allow anyone in your nation to access a door or chest. i.e. /cmodify nation:[nation_name] Alternatively, I thought you could just add every town in your nation, but that command isn't working for me atm. But if the command is going to be looked at, why not consider this idea at the same time? I'm sure the mechanic would be similar.