Question about HW-MS651 - 131132

Has anyone managed more than stereo with the soundbar? With the latest updates (installed) and the wireless rear boxes, 5.1 (or at least 3.0) should be possible. But I can't set more than stereo on my Samsung TV UE65MU8000T, no matter whether via Wifi or HDMI. The options (DTS and other Wifi options) are always greyed out in the menus. ...you buy everything from the same manufacturer to avoid exactly such problems, and now I still have an expensive stereo system.