I doubt it, The only settings I ever see are in the CLUB Menu on the mixer, you can adjust the db value of the main out, I never seen anything done via a computer or locking it. you can however set you processors limiter like a drive rack or whatever you are using to "limit" the output even if they crank the master on the mixer
actually, let me take back the "i doubt it" part. I am sure it can be done by a Pioneer engineer, unfortunately we will not get the info to do this unless someone gets an inside contact