Maybe I am looking at the wrong chapter. I don't see it in the Shooting Settings Menu; the only setting dealing with how the actual picture is in-camera manipulated is "Active-D Lighting".
I was shown with a black and white file that I took straight from my camera the color information is still there. He loaded the picture from my camera that I took in black and white and used a dial and all the color filled in as if I had taken it in color. In otherwords there is no difference if you do it in the camera or post.