[Plugin Update: 2021] TechBlocks Charts and Graphs (Chart.js)

@alex4 On your charts demo page you show an example that combines a bar series with a line series:

Can you provide some guidance on how you achieved this? I tried looking at the app editor for your demo page, but within this particular chart I don’t see any data assigned and I can’t seem to see where it is being added via workflow either. For my use case I would like to combine a stacked horizontal bar (to show background colours) and a line chart (really just a single data point to indicate where on the range a value lies) similar to this mockup:

For reference, the background in that mockup (the coloured stacked bar horizontal chart) was generated using your plugin, I just need help with the extra step of adding the line data point.