Monitor Preferences Monitor Bitdepth Click on a monitor to change its bit-depth. Double-click to set it to its maximum bit-depth. Control-click to change its resolution. Command-click to move the menu bar. Shift-click to display only one monitor. Monitor Bitdepth Click to change the selected monitor or its bit-depth. Double-click to set it to its maximum bit-depth. Control-click to change its resolution. Command-click to move the menu bar. Shift-click to display all monitors. Monitor Bitdepth Click to change the monitor's number of colors. Double-click to set it to its maximum number of colors. Control-click to change its resolution.