I linked the dining for 70 DISers on the May Repo cruise. I'm still having nightmares about the stress from organizing it!
What I did was to just have everyone PM me their reservation numbers, cabin numbers, and names as they appeared on the reservation. Depending on who I talked to at
DCL, they wanted the extra info. Other CMs didn't care.
You can then just call DCL at 1-800-951-3532 and ask to link their reservation numbers with yours.
I don't know the size of your party but if it is bigger than 10, I would check with DCL as they are limited to the table sizes on each rotation. We ended up only being able to get tables for 8, 7, 6, and 4 so there was a lot of work involved with seating families and friends together. If you need two or more tables, call the dining coordinator Debbie Wargo at 407-566-7411. She does the seating charts and can place you at adjacent tables. She can also do a better job at putting you at your requested rotation.
Be glad you are doing this as the wonderful people we met on here and dined with made the trip so much more special.
Please feel free to ask any more questions as I feel I learned more about this process than I ever wanted to!
-steve