After carefully reading the whole user manual (lol...) I came out to an interesting MENU setting. FUNCTION>POWER OFF(With No Controller) and give it a try.
Here is a small video.
I am not particular happy with my voice so the video is self explanatory.
I don't have my laboratory tools here on my second QTH but I thing I can investigate a little the serial comm with the Controller to see if it is possible to send it through the Ethernet
73 de YO3HJV
For my reference:
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