You can also try the free DTM plugin developed by Adam Haining. It opens up a separate window with a full easy to read list of all of the rules, data elements, and _satellite.notify() comments. It gives you a complete list of all of the Properties Data Elements, the value for each if one is set, as well as its Type. Very handy tool! This plugin is MUCH easier to use and read than the Adobe DTM Switch plugin which utilizes the Console.
Plugin How to Page
To use it create a browser shortcut and change it to:
javascript:void(window.open("","disruptive_dtm_debugger","width="+screen.width+",height="+screen.height+",location=0,menubar=0,status=1,toolbar=0,resizable=1,scrollbars=1").document.write("<script id=\"disruptive_dtm_debugger\" src=\"//assets.adobedtm.com/d00638433326249dc42ea6fc89a4f65bfba18066/scripts/satellite-55fae9a2666337593b0005c2.js\"></"+"script>"));