Also...MS can see how many rooms are available, which we can't see on the website...and they can do a "partial booking" (i.e., just the one name and then book; then villa two w/one name and then book...and then go back and fill in add'l details (add'l guests, dining plan, requests, etc.)...so yes it's one at a time, but they can see how many villas there are which lets them decide whether they need to do "very fast minimal" booking to make sure both rooms can be booked...