I've been wondering the same thing since I got my M11... The manual does seem to indicate you can chage that setting, but no.. I tried reassigning the button, maybe those bottom ones are a PUSH type only, but no...
What I did, as a kind of pseudo-ALB, is to slow down the servo speed when braking, and lowering the EPA so that even on full brakes, the wheels will not lock. Along with very slight drag brake, it makes entering into turns quite controllable
