Is it possiable?

[bumbershoot]

Would we need to call guest services to make sure we do not have to check out and back in?

You would be talking to the front desk *in person* about that.

But I would assume you’ll have to change rooms.

If you book separate identical weeks, I think MS will just merge them.

If they booked a week and immediately got the dining plan on it, then booked the second week (which wound of course be done later on), then wouldn’t the stays have that difference and be ok?

I think this is against the official policies. Credits have to be used by the people in the reservation. I don't think they check, though.

That changed a couple years ago. From everything I’ve read since, they can be shared.