@titusou Thanks for pointing that out. I still think that this is not an acceptable solution. Why would I need to rewire my heaters just to get things right on the panel? Wiring is complex anyway, so I tried to simplify it by using Duex5 for all my heaters (except bed of course). So, still, I think PanelDue is an inferior solution to any wifi enabled touch screen device out there. And I cannot recommend to buy it - except for simple default setups, which is not what Duet boards are made for, right?
I won't keep banging my head on the same spot regarding this issue, but still hope that this will be fixed soon. Or then I just toss it and replace it with wifi touch.