Vero 5 - Optical out without audio throught HDMI

I connected my Vero 5 to the TV HDMI and to my amplifier optical IN.
How can I disable the audio through HDMI and have only throught the optical line?
I did not find any option navigating the expert menus


Curiously, it’s in the System->Display menu ‘Mute HDMI audio output’.


Indeed, it’s not trivial to move it to Audio if I recall and is somewhat display related, so I chucked it in there.

Thank you… I did not guess to look there

Curious, and just for knowledge, does passthrough work when this is done?

Yes, I can confirm