Glad it is working for you. I was going to say that none of my monitors has a button, switch, dial, or control of any kind, and none are needed. Control and calibration is easily accomplished through System Preferences > Displays (and one or two other preference panels) or the keyboard.
"All you've got to do is own up to your ignorance honestly, and you'll find people who are eager to fill your head with information" --Walt Disney
