We are going on our first Disney cruise in January. We are going with my parents and my sister's family. I have several questions about online check-in especially regarding tickets for the Princess Gathering, Frozen meet and greet and a BBB appt. If I connect all three of our reservations on My Disney Cruise, can I make the ticket plans and appointments for all three rooms or just my room? I'm finding conflicting information, and I really want to make sure my daughter and her cousin have everything booked together. Also, I should be online at midnight of our online check-in day, right? Also, will I know the day of the special dinner nights (Pirate night, fancy dinner night) before online check in because we want to make the BBB appt the night we can dress-up for dinner? Is there anything else I should know?