customize x-axis support

[lvelvee]

i guess x-axis may be a non-time field.

[PetrDlouhy]

@lvelvee I don't know what exactly do you mean by that. What else do you want to put on the x-axis instead of time?

Anyway, I don't have time to develop new features unless I will highly benefit from them in my project. But any initiative is welcome and MRs will be very appreciated.

[lvelvee]

@lvelvee I don't know what exactly do you mean by that. What else do you want to put on the x-axis instead of time?

Anyway, I don't have time to develop new features unless I will highly benefit from them in my project. But any initiative is welcome and MRs will be very appreciated.

thank you, you are right. I'd like make some contributions if I have enough time.