The ability to control two SCV’s is readily available to modify in code to however you would like. I don’t think I will spend much time for second scv control in the near future as it isn’t pertinent to my uses for it this year. But the v2 PCB’s that should be showing up shortly have dual DAC’s as well so it’s all there waiting to go.
As well 3D style control that would demand is better suited for OpenGrade3D, which has been developed by some very smart guys it can be found at Grade control
Also I figured out the op amp thing so the V2 grade control Modules also have implemented support for 2 Danfoss PVEM style valves as well.