Don't ever believe the
MDE app when it says there are no more FP+. Just for the heck of it, I just tried to get a FP+ for Frozen Ever After for tomorrow (I live 1500 miles away, so obviously I'm not really going). Of course it said there were none. But I refreshed the screen exactly 32 times (I just kept hitting "morning,") and voila - FP+ for 2 is available for 3:15 PM. I've used this refreshing technique to get FP+ for all of the top attractions on the same day - sometimes to change a time and sometimes to get a Tier 1 attraction as one of my fourth or subsequent FP+. Just have the patience to keep constantly refreshing. You may have to do it dozens of times, but the odds are very high that, if you're persistent, a time will appear. One tip - if a time comes up that you don't want, take it anyway, and then keep refreshing to modify it. It seems to work even better this way.