no, you got me right first, the different x-axis can all have different scales.
in the image they're all the same because i was too lazy to change that too when creating it with the gimp ...
sorry for that.
and there have to be separate axis and scales for each of the curves drawn - because my boss wants so.

anyway, i thought about having multiple plots, but in the end i have to have one single widget ready to use and probably there's also going to be a designer-plugin for it.
so basically, i would have to rewrite almost the whole plot-widget i have now to cover multiple plots and control dem separately, or write a whole new class covering some of my plot-widgets ... however, it would be a lot of extra work, which i'm trying to avoid ...

big thanks for trying to help me though!

sincerely,
julian