Is there any way to change the order of the AEB shots?

Right now it goes 0, -2/3, +2/3, -1 1/3, +1 1/3

I would like to change it into exposure order -1 1/3, -2/3, 0, +2/3, +1 1/3

Also, is there a way to change the step?  I would like to go -2, -1, 0, +1, +2

Is there a way to set AEB as the default for the camera?

Would this have what your after???

http://www.phantompilots.com/thr ... ow-supported.72912/

Looks great, except no IOS version