I have a chart where I add a totals line, which is working fine. What I would like to do is to add another "totals/averages" line which shows the related averages. The figure attached indicates the required output:
sure that would be possible, though I couldn't tell you out_of_the_box how to do it. You would need that average as a native field on scripting_level, I guess - or you could calculate it dynamically on the GUI.