New to Codesys, can I trend non-time series data?

Basically looking for a scatter plot, looking at the trace feature seems all the x-axis data is time-series only. I'd to display speed vs flow, so a custom dataset is required.

Any routes I could travel?

I believe I did this at a previous job. Try creating a histogram instead of a trend.

here comes your solution in codesys
i have it as a project and as a export (it is in PLC_PRG so you can see what happens, but you can rename it to a Function Block.
the vdiagram contains 100 subvis,but you only see one.
if you want to change dimensions, use a texteditor in the export, faster.