Multi-db: VIP database clarifications

Hi,

Regarding VIP databases, once we run the script move-blogs.php, the existing blog/site that we want to move to the vip database, will it be automatically moved/placed to the corresponding database? We have tested it, but the data did not go the VIP database.

Also, is it possible to add more VIP databases/sites in the future? If yes, how?

Thanks.