Hey!
Yes, a DAH ticket acts as any other type of park ticket and will let you make FPs. But - like with what started with
MNSSHP tickets and FPs last year - there are certain combinations of tickets/scenarios/situations where booking FPs with a DAH ticket may cause issues with other booked FP days.
What I mean by this is, say...
Person X has a 5 day ticket and books 5 days worth of FPs (in this case let’s say Days 2–6)
Person X also has a DAH ticket and books FPs that day (in this case, Day 1)
Disney’s system will let you do all of the above. BUT - for unknown reasons and circumstances SOME people later get an an e-mail warning as having too many FPs vs tickets and that the last days FPs will be deleted. This warning comes via e-mail and the FP deletion can happen sometime (like a day or so) afterwards.
Not everyone will get the warning and it is unclear what exactly flags/causes it to occur in the MDX world. Calls to Disney IT result in varied responses.
TLDR - it’ll let you do it, just keep an eye out for any warning e-mails, especially if the FPs on the last park. day are really important.
Hope that helps!