Quattro grid feedback on both lines?

Hi, i am just wondering about a future project.

If i would use a Quattro connected to the grid and a generator. Set up an ESS with a few Solar Panels and Batteries.

In VE Config (Quattro Demo) i can set AC1 input to generator and AC2 to “Above selected gridcode”.

In case of full batterie and no need of output on the Quattros AC Out. Would it feedback power on AC1 and AC2 or only AC2?

Cant read that from the settings.

Regards!
Jan

Just some more information. The plan is to attach the generator to AC1 but using a plug and socket. Thats why i am wondering if AC1 would have live power on the plug while feeding back and the generator is not present.

Regards
Jan