The 'Sliders' are within the Manual Measure menu of ColourSpace. You can set any colour patch there.
You do not use the display OSD.
(So no resetting via the OSD either!)
And as per the Eizo Guide, the Brightness is the Interactive Peak Luma control.
There are no other controls with the Eizo.
And as it says in the guides, the Min/Max values do not need to be set.
But it can be helpful if they are set - you can take a Black/White reading if you want, and use those.
Having them set just means any manual measurement will provided valid feedback.
(But with LUT based calibration that is really irrelevant.)
Mob Boss at Light Illusion