Set a custom name for columns in line charts from Advanced Workflow extension package

[GeneraalSnor]

I have the following list chart:


In this chart I want to display two lines where one is a measurement and the other one is a reference value, so it is vissible if there are any deviations from the reference value.
It seems this can only be achieved by grouping and chosing an sum/max/min option for the respective fields, otherwise the chart shows empty / does not show at all.

Now I do want the labels below the x-axis not to display "Max: Height" but i.e. "Height - Actual Measurement". Is this possible?

[yuri]

It's possible to set custom column labels. Need to click the button.