Quick Control Screen

The Canon EOS 50D and EOS 5D Mark II cameras feature a new Quick Control Screen that gives you instant access to the major shooting settings on these cameras. Instead of having to press different buttons or scroll through menus this is designed to let you quickly change settings such as ISO levels, metering modes, white balance, image size quality, shutter speed, aperture, and more. The Quick Control Screen is accessed via the small eight-way multi-controller toggle control to the right of the top right of the LCD screen on the cameras. Once you've highlighted a specific function via the multi-controller you can then change the setting via the main dial or the rear Quick Control dial. The function you've selected is spelt out at the bottom of the LCD screen monitor.
Camera settings
EOS 5D Mark II