SolarEdge Generac Support - Help!

Hey friends….Hoping for some guidance with  Generac guardian series generator working with SolarEdge EnergyHub inverter and BUI backup interface (also referred to as transfer switch or ATS). 

SolarEdge doesn’t support control of the Generac through the BUI like they said tut would. How do we get the generator working as a backup power source and how is the gen wired in to the BUI (with schematics if possible). Advice? 
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