Hi, in Measuretool when you generate CMYK testchart first step is to select separation. You can select from predefined list and modify it.
The testchart will be different if generated with different separation values. Furthermore when measuring testchart you can select profile generation separation values.
So if you can change ICC profile generation separation values why measuretool generated different charts? Why not the same chart and allow to select required separation when measuring it?
The included industry standart testcharts seems to follow this approach as they are standart (you cant regenerate them for another separation) but you can change ICC profile generation separation values.
Is there sense in making testcharts for different separations then?