Hi - I just finished by onboard online check-in !! Today was my first day to log on for the March cruise. I did it at midnight for the Onboard activities then this morning I completely to do the check in to get a Port Arrival Time. 2 questions! Actually 3 
1 - I tried to reserve the Meet and Greet for Princess and Frozen for 2 days. I don't think it allowed me but I did get it for one day. Are we only able to reserve it only one day during your cruise?
2 - The Port Arrival Time - just curious since I did it this morning instead of midnight like everyone recommends, I was able to get an early time of 10:45am which is the 2nd time but just curious did I miss the first onboard time, I think it was 10am or is that time reserved for the Castaway members? Just curious!
3 - On the onboard activities page when I selected my time for the Frozen and Princess meet and greet, it said other character meetings will be available on board. Do I need to reserve those too when I get onboard through guest services? Or will we receive a schedule each day when, where and who and just show up?
Thank you for all your advice and help !

1 - I tried to reserve the Meet and Greet for Princess and Frozen for 2 days. I don't think it allowed me but I did get it for one day. Are we only able to reserve it only one day during your cruise?
2 - The Port Arrival Time - just curious since I did it this morning instead of midnight like everyone recommends, I was able to get an early time of 10:45am which is the 2nd time but just curious did I miss the first onboard time, I think it was 10am or is that time reserved for the Castaway members? Just curious!
3 - On the onboard activities page when I selected my time for the Frozen and Princess meet and greet, it said other character meetings will be available on board. Do I need to reserve those too when I get onboard through guest services? Or will we receive a schedule each day when, where and who and just show up?
Thank you for all your advice and help !