Dumb question...If we are doing 2 nights in a studio followed by 3 nights in a 2BR, can I book them all at the "11-Months from arrival" or do I have to call back 2 days later to get the 2BR?

I know that the reservations cannot be linked since they are different room types. I guess I never thought about the fact that they are 2 different reservations with 2 different arrival dates. We are going spring break 2010 and planning on staying 2 nights in Jambo studios and then 3 nights in a Kidani 2BR. How does MS handle the split stays?