After reviewing the Owners Manual for your grill, I see it has only 2- burners and possibly electronic ignition and an optional side burner (if you have the kicked up model). This grill is not difficult to operate, as it only has 2-burners, which translated into 2- burner knobs, which control the lighting of the burners and the flame height adjustment, once the burner(s) are lit.
But, as they say, "One picture is worth a thousand words". So I am providing a link to your model grill, that not only has the Owners Manual link, but also links on how to use, operate and cook on a gas grill. In fact, there are a couple of videos you might find of interest.
http://www.charbroil.com/ProductSupport/463270611/Quantum-Infrared-Urban-Grill.aspxBe safe and enjoy your grill.