I'm thinking that if it was just programming there would be no reason for the tilt feature to be an option instead of standard. Got to believe there is some hardware component to add (kind of like adding A/V features to the fiber optic loop--add the hardware then program through SDS).
Just my line of thinking...could be totally off base. I was once before.
Edit to add...i'll be out for the next week, but it sure would be nice to see photos of the non-recommended color combination when i return!! I'm having trouble visualizing, but it must have been attractive enough to motivate you to purchase it.