Hi JKru,
There aren't any tutorials to my knowledge on the subject. To find all the datarefs and commands, all of our datarefs in the SR2X start with afm/sr/ and all our commands start with afm/sr/cmd. For datarefs, entering afm/sr in the search field should show the whole list using DataRefEditor (or DataRefTool if in DataRefEditor compatibility mode). For commands, they can be browsed through the X-Plane command dialog (for keyboard or joystick) when the SR22 is loaded. They can be found under afm->sr->cmd then the various subcategories below. A description of the command will show there, and if you hover over the description, the full command will show.