Mirror/reverse display

[aamf]

It would be great if the live-view display of cameras without a flip-out screen, such as the 5D mark II and III, could be reversed and/or mirrored. This would make it possible to shoot from the hip using a small external mirror such as this: http://flipbac.com/angle-viewfinder-about.htm

Currently there is an option to display the overlay graphics upside-down, but not to mirror or reverse the entire live-view display.