two inverters possible?

[novus84]

Is it possible to add two inverters under “Solar” or do I have to add both values in advance using a template?

Under Solar it says the following “One or a list of Entity IDs providing a state with the value of solar production.” How can I use a list? I just can't get it to work.

I would be very grateful for your help!

Edit: I create a sum helper to add my two kWh values in the gui everything is ok but in energy flow card plus nothing is shown.
Same with my addition template. :(

Edit2: ok strange now it shows something but i don´t get it... what is wrong?
i clicked on the 0,02 kWh, the popup shows the correct value.