I know it can be done, my dealer locked it out during deliver for me. I was not really into the bike going up and down. Put about 300mi on it locked out, accidently set it back on and never locked it out again.
Thats the only way I've seen to do it , but I also don't really notice difference except sitting still. I'm 6 feet and not looking forward to the uneven terrain oh shit moment either. Kinda wish there was a manual dump switch for that even in dirt+ mode or created mode with it off.