This is not a major issue for most cruisers, or in fact, a fair number of cruisers. But if you are the party affected by this, it is a major issue. The app needs to have a designation for large group and move it up the ladder to someone who can affect the solution manually. The way the system is now, there would be no way to know that your two tables (if that was your option for 11 people) would be near each other. Things used to be so simple. I know because we have cruised with large groups - on Princess, Royal Caribbean and Celebrity. A note was placed in the reservation system and our tables were right next to each other. Can't imagine the app being able to do that. If this was me, I'd call the DMW team and see what they suggest. I have a feeling waiting til you board will not get the outcome you wish if the ship is crowded.