A little off-topic, nevertheless relevant: I have a laptop with no VGA port and I still use a very old ViewSonic CRT 21" monitor with it, using a HDMI-VGA adapter; When my computer sends the sleep signal to my external monitor through the adapter, the monitor does sleep successfully, so I assume there must be a way to make the RBPI send the same kind of signal through the HDMI port.

Thanks everyone for your answers, will read them carefully and follow your advice, will post back soon.

@mykle1 Would you happen to know about special characters?
In the Spanish language, we “open” exclamation and interrogation marks (¡Text! ¿Text?), I’ve typed those characters directly, and they end up as a weird symbol once I run MM, then I tried specifying the encoding table (ISO-8859-1 and/or UTF-8) and it seems I missplaced the code, as MM told me there was no config.js file, then I tried using common HTML code using & # 1 6 1 ; (without spaces) for the “inverted” exclamation mark, and didn’t work either (I got the full “& # 1 6 1 ;” string displaced preceding the compliment’s normal text.