Examples:
/f config factionFlagDefaults firespread false - set default "FIRESPREAD" faction flag to false
/f config factionFlagDefaults monsters true - set default "MONSTERS" faction flag to true
/f config factionPermDefaults build ally - for default "BUILD" faction permission, add/remove permission for allies
/f config factionPermDefaults withdraw member - for default "WITHDRAW" faction permission, add/remove permission for regular faction members