When I use Cura2 and try to individually heat a hot end, I cannot select T1 to heat the extruder and extrude filament. When I select T0 it does heat the first extruder.
I tried T1 and T2, just in case it would work, but that will not change the control either.
I tested Cura1 and I can control the Dually.
I am currently using the V3 Dually, but my firmware is correct and the V3 Dually does work through Cura1