Booting OS on Matrix Minipc via USB

Hi all,
Just wanted to know if some one has booted an OS via USB device on Matrix Mini PC. I have done it with SDcard. Just wanted to know if its possible and how can we boot it. Also, Can any one tell me in which doc on tbs website i can find switch configurations for Matrix pc that has only 4 switches .
Just wanted to know if some one has booted an OS via USB device on Matrix Mini PC. I have done it with SDcard. Just wanted to know if its possible and how can we boot it. Also, Can any one tell me in which doc on tbs website i can find switch configurations for Matrix pc that has only 4 switches .