This seems to be the place to add my +1, although my situation is slightly different. I currently have a Main panel outside, then a sub-panel in the house for everything there, and another sub-panel in the garage for the car charger, heat pump, and various lights/plugs. Both the garage sub-panel and the house sub-panel have a full Vue2 set up (200A CTs measuring total in/out, 50A CTs on individual circuits)
I would love to be able to group the House and the Garage under a top-level category, so that I don’t have to mentally add the two numbers together every time I want to know what my total usage is. I have zero interest in buying any more hardware and mucking up the main outdoor panel just to get those two numbers added together.
Otherwise, everything is great – having the Emporia has not only helped me understand my energy usage better, but it helped me identify that the solar installers had mis-configured the Enphase equipment (twice!).