@jameslee I think you need to clarify how you would like to "manage" all of the reservations. If you mean, you would like to be able to make dining reservations for everyone, it's fairly easy, as LACruiser said. However, if you are trying to book excursions, get OceanReady, and other pre-cruise preparation, I'm not sure you can do that. At least, I haven't figured out how.