Personalized Mix Channels

We want to watch SEC Network, Braves Vision & a network channel at the same time as this is college football/braves season! How do we do that? The Sports Mix does not have the games we want to watch. I figure with the amount of money we pay monthly to have streaming access to all our channels through DirecTV we should be able to watch the mix of channels we want to watch. ANY IDEA when this will happen???