Move your cursor about half and inch to the left of the camera icon,
staying level with it, so as your mouse cursor is underneath the r and s
at the end of Chambers and the B at the start of Bay. You'll then see
the black rectangle with "green reverse" written on it. You may have to
jiggle your cursor about a little as it does not always appear straight
away. Click on that box and you have reverse view of the green.