[Feature Request] - Custom X-Axis from data stream

[fromanza]

Amazing tool, best Ive found yet so keep up the good work!
Would love a new chart type that allows to use a custom x-axis from the datastream IE a chart that is not time dependant bound. This allows very useful cyclic like plots to be generated to look at repeatability and variances. I looked at the source code to see how I might do this but its way above my pay grade...
Like this:

[farrellf]

I plan to add a scatter plot visualization, with the ability to draw lines between coordinates. I hope to implement this in time for the next release, but I don't have much spare time these days. It might be half a year or more before I can do this.