Mario. I do in fact have the parameter set to lock ON on my 9000Pro, but I do not fully understand what it is or is not supposed to lock, I assume its locks the user key split points and touch settings or is there more to it?
Perhaps another 9000 owner forum member can give us more input?.
I do like to delve heavily into any board I am using. My other board the Roland EM2000 like the G1000 is not really user friendly, yet I have found after a short introduction that I can do most things with it and it is a joy to use.
The 9000 is easy to play and an ideal board to play on the fly, but as we have found it makes its-self elusive with its very poor manual if one wishes to do that little bit more.

Graham