Gonna chime is as I use
DAS quite frequently, and have used it during
MNSSHP..
So when you enter the park the DAS appears on the app and allows you to get in line for rides (assuming you are getting there at 4pm), but once it gets closer to 7pm, for when the party starts, its not going to work. I found that after the party has started a little, log out of the app and then log back in and DAS will again appear on your app ( I believe because its now checking to make sure you have a party pass on your account, reason for the relog). We were able to then use DAS as we would normally for the rides that would be open during the party.