Inovelli 3 way Smartthings switch installation

SmartThings switch installation: How to wire an Inovelli 3-way switch. How to tell which is the "load" wire to the light. I mixed up my line load terms a few times buy you get the idea. (sorry about the sniffles...cat allergy) I'm not an electrician, be careful, and check your voltage with a meter constantly. I take no responsibility for shocks, or idiots.