This excellent instructional post for the nanokontrol was posted fere on the forum a few days ago. This is more or less how I got my 3 working together.
http://www.untidymusic.co...-up-nanokontrol-sonar/ I have all the functions working on 3 of them controlling 24 tracks.
If I would have used the instructional link above the setup would have been a snap, but I figured it out by trial and error.
the only thing I did different was setting up the transport buttons (instructions near the bottom of the instructional post). I didn't go to the ACT learn screen. I stayed on the cakewalk generic surface page. there are global controls on the bottom of the page (play, stop, forward..etc) that I mapped the same way. (basically select the "play" button on the controller page, move a slider on the controller, press the learn button) So there is no need to move off of this one configuration page to set the entire controller up.