I've been reading in some blogs that it's possible to use your breakfast voucher from a different hotel to have breakfast at Inventions. I've found conflicting information though: 1. Some people say you can pay an amount to have your breakfast upgraded to Inventions. 2. Some say you don't have to pay anything, as long as Inventions is not busy. 3. Some say upgrading your breakfast is not a possibility at all. 4. Some say it'll all depend on the cast member that will be there on the day as there's not much consistency. Do you guys know how it works?