After hours event

Thinking of adding an after hours event on one of my days in May. Are these similar to a halloween party in regards to ticket/fast passes/entrance?
Is it possible to link this ticket to a dummy account on MDE, and how would I do it?
Do I get fast passes for it? The after hours at MK say you can enter at 7 pm. TIA.

I can’t help with the dummy account but I posted this earlier: