Auto-translated
It doesn't want to show artifacts. I even bound them to each slot like in the inventory (ring, sword, helmet, etc.) and nothing. And no matter where you click or hover with the mouse, it shows "equipment" everywhere: on objects, monsters, castles, everywhere. Maybe I'm doing it wrong, who knows. If it displayed artifacts, it would make sense to bother, ask for help, and finish it.
This looks really solid!
I think if he pulls artifact icons into the inventory (which is also a windows-screen), then he can pull them here too. We just don't understand how to configure these "connections" so they work correctly.
Hottabych is great at interfaces, maybe he can give you some advice.
In any case, big plus points to your karma for trying — I'm glad my message inspired someone to give it a shot.
P.S. If you do manage to get results with this kind of variant as you showed, then I'm ready to pay for its implementation into my mod. The mod boosters will be happy about such a feature.
Added after 7 minutes
Does anyone know where to download a mod for the second alternative upgrade?
Depends which one) There are several. There was a guy who made such a mod for undead. And there's H5AB.