Multi Pass and Single Pass Lightning Lane - Overlap

[Goofy2015]

Multi Pass
In general, I am not sure how much Multi Pass can overlap when initially booked? From what I have heard, they do cannot overlap similar to FastPass+. I have also heard they can overlap once you edit them on the day of the park visit (Midnight). Obviously, better times for a given may not be available at this late in the process.

Single Pass
Say if I have already booked my Multi Pass LL. Can I overlap any Single Pass Lightning Lanes? For Example:

Magic Kingdom - Multi Pass Example
9:10am - Haunted Mansion
10:10am - Buzz Lightyear Space Ranger Spin
11:10am - Tiana's Bayou Adventure

Can I pull a Single Pass for Tron at 9:30am? Or, would I be forced to do 12:10pm or later?

 

[andrea_atl]

I currently have 4 for a Magic Kingdom fantasyland morning that I'm trying to shift to be closer to each other in time, and it's not giving me access to earlier times. Here's what I have:
9:25 Haunted Mansion
10:35 Seven Dwarves
10:55 Peter Pan
11:55 Pooh
It's a lower attendance day and I can see earlier available times. But I can't select them. Maybe it's forcing an hour between the Lightning Lane multipasses?

 

[andrea_atl]

Yes I just tried to move Seven Dwarves back a bit, and even though other times are available it wants to move me to 12:55pm.