Nikon D200 Custom Settings Menu Command Dial Settings Screens
			Change the rotation direction for both dials. (Handy for former Canon shooters, so the EV adjustments will move in the right direction.)
			Just swap the functions of the main and sub command dials for all operations.
			For lenses with aperture rings, determines whether the sub-command dial or the aperture ring should actually control aperture.
			Optionally enable command dials for menu navigation. (Normally, you just use the multi-controller for this.)