Sonar X2 Studio not showing all Presonus audio inputs

Hi, Sonar x2 and Presonus FS Project, when trying to mix multiple inputs to one Sonar track ex: outboard midi gear, I cannot see a "main mix" option in audio devices, only mic 1,3,7,spdf. I used to have motu unit which had the option for a "main mix" to record to an audio track in Home Studio. I can record each input separately ex: mic,1,3,7.. no problem. Am I missing something in the Presonus Universal Controller software? It works fine other than sending a mix to one audio track.