Question about front screen display

I just had my car coded by Okee at triple o coding. The kid was great and knows his ****. i reccomend to anyone who wants to code there cars. Hes inexpensive fast and greatly knowledgable. His number is 585 496 4648. Anyway my question is this: My vehicle came factory equipped with the rear entertainment system and I had him code it so now I can watch Movies on the front screen and control everything through the MMI in the front. My problem is this : The movie only plays on main display and not the little one off to the side. Is it possible to watch on the whole screen? How do I do it?