open
MDE, click on a Fp and click modify. You can look for a different FP or a different time.
After I tap in fo rthe 1st FP, I click on the next FP and click modify and see if I can move the time up. Clicking on different times does give different results.
Our last trip, my daughter and i kept modifying FP all day. We found that getting a FP for a ride we wanted at a time we didn't, seemed to increase to chances of modifying it to a time we wanted. For instance, we wanted pirates at 2 pm. Not available. We took pirates at 6 pm, then clicked modify and 1,1:30, 2, 2:15, 2:30 came up.
Using this method, we got 8 different FPs for MK on a Saturday. We could get everything but 7DMT and PP as and extra FP.
good luck.