It's a long time since I had a KN5000 so I can't remember if it has a 'Data Protection' facility. Perhaps you may be able to find reference to this in the manual. Out of interest, on the KN7000, the Data Protection facility is accessed through the 'Customise' Menu. This maybe the same on the KN5000??
Options for Data Protection on the KN7000 are :
Footswitch Controller
Total Equalisation
Initial Touch Sensitivity
After Touch Sensitivity
Microphone Settings
Panel Memory Expand Filter
Each option can be set ON or OFF and when ON, prevents the settings from being altered, except by master resets and initialisation operations.


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Willum