Full LCD mirror transformation

[garry23]

At the risk of upsetting the moderators, I'm requesting this feature here, as I realize I posted the other day on an old post.

The use case is is when you are using a fipbac mirror on a fixed LCD.

In this situation, the flipbac allows you to see the LCD screen, eg from above the camera, but, of course the mirror image is just that, mirrored.

The request is to extend the existing ML feature, that flips the ML menu bars, so that the ML menu bars and the LCD image are fully mirrored, so that the reflected flipbac image looks normal.