OP, hope you don't mind I ask a question on your thread, it is so appropriately titled Magical Express Question.

Hope someone can share their experience who has been in similar situation.
My extended family from different city will arrive MCO 5 hours later than us. My room reservation is for me, my younger daughter and 2 nieces (arriving with their parents later). My own family of 4 will need M/E to resort but 2 of us are not listed on room reservation. When my other family arrives later, they will get rental car, drop off their 2 kids with me and take my 2 teens to stay with them near Universal, they will go there the next day. I know M/E is for registered resort guests and my teens are not on it. Will Disney turn them away if we use vouchers (is that still being used?) that belong to my 5 and 7 y/o nieces? Do they check name to match the person? My teen boy won't pass as a little girl! We are still 4 people using M/E.