Usually / typically they will also have “client” monitors which are VT30s etc. I start with working on the client monitors, which should be extremely straight forward. Plug in a signal generator and calibrate to rec 709 in 422.
For the “reference” monitors, ( I use this term very loosely), they typically have 709 / DCI gamut selection, then gamma choice, and white balance controls (in addition to contrast and black level controls).
There is a great ability to screw this stuff up. The client often has non real expectations and they consider themselves “color experts” but are very often times lacking in expertise. They want all the monitors to look identical and this is impossible.
Get all the delta E values as close to perfect as you can, ensure that the light output of each monitor is also the same.
