I agree this would be quite helpful for GM's and Vice Leaders. If this is added it might also be helpful to be able to select only certain players in the guild. I'm not sure how the Guild warfare is going to go but sometimes guilds/clans have spies or certain people that are friendly to enemies it would be nice to be able to send group messages but also make it so that if needed the person who just joined the guild the day before does not need to hear the battle plans.