I’m not familiar with the buttons on the stage. Sounds like this may be instructions for the toaster and rack as choosing the browse mode also turns on the unit. I did check the latest manual and found this below. You should contact support for clarification but looks like hold rig button while turning on the unit is what they meant. Like I said choosing browse on the rack and the toaster is turning it “on” but looks like there is a power button on the stage.
“PROFILER doesn't boot up completely
If the PROFILER has not been shut down properly, the result could be that the PROFILER isn't able to completely restart. In order to rebuild the internal database, please push and hold the RIG button while you switch on with the
chicken head knob. Hold the RIG button until the message “Initializing current Rig” appears. Your data and settings
are not impacted by this procedure.”