I just had a thought, but don't know if it's workable or not, so I thought I'd ask the font of all knowledge that is this forum 
When I'm booking my FPS, my approach will obviously be to book them as early in the day as possible so that we can get more FP choices on the day. SO this might mean FP1 - 9:10 - 10:10, FP2 - 10:20 - 11:20, FP3 - 11:30 - 12:30. And I've read the advice about then getting on MDE on my phone and making my next selection while in the queue for FP3.
But is it possible to shorten the times between rides by modifying on the day? When I tap in on FP1 at 9:10, can I look on MDE and see if I can move my FP2 window up to 9:30 - 10:30 or something like that? And then when I tap in to FP2 at 9:30, look to see if I can move FP3 up to maybe something like 9:50 - 10:50.
IN theory that could mean I'd have my first 3 FPs used by 10:00. Is that possible?
Although now that I've said it I guess I'll be booking the more popular rides as my fist 3 FPs each day, so there might not be much flexibility available to move the times up on the day.

When I'm booking my FPS, my approach will obviously be to book them as early in the day as possible so that we can get more FP choices on the day. SO this might mean FP1 - 9:10 - 10:10, FP2 - 10:20 - 11:20, FP3 - 11:30 - 12:30. And I've read the advice about then getting on MDE on my phone and making my next selection while in the queue for FP3.
But is it possible to shorten the times between rides by modifying on the day? When I tap in on FP1 at 9:10, can I look on MDE and see if I can move my FP2 window up to 9:30 - 10:30 or something like that? And then when I tap in to FP2 at 9:30, look to see if I can move FP3 up to maybe something like 9:50 - 10:50.
IN theory that could mean I'd have my first 3 FPs used by 10:00. Is that possible?
Although now that I've said it I guess I'll be booking the more popular rides as my fist 3 FPs each day, so there might not be much flexibility available to move the times up on the day.