Class 4

I’ve just noticed the instruments on my V7 II display “CLASS 4” for a few seconds after reconnecting the battery. I wonder if it’s to do with the emissions level? The reason I think this is earlier bikes display CLASS 3 or CLASS 2, according to another Guzzi forum.

I’m tempted to try pressing the A/B buttons while the message is displayed and see if the Class changes, and if it does whether it affects the way the engine runs, however I don’t want to bugger things up!
Has anyone else tried, or know what CLASS means?

Thanks, Pete.