Yeah in theary if you have a 4 way system which would be a F.B.S.S (front back side side) you would have to do them independantly, but i believe air ride has their digital controller which has a all up button and a all down button, and a button that puts, and keeps it at ride height, i've installed a few of the same with the air-lift kit and never had a prob with it. you can buy the digital controller units serperately, i believe some other company makes one that looked nice but not sure who.
as far as your car goes with a 2-way system, i'm not 100% possitive as all the one's i've installed are 4-way. sorry.