Feature request - multiple chart types on on plotarea

[pgee70]

Hi
Looking at the API documentation, i recognise this would be hard to implement.
But it would be useful to have more than one chart type on the same plot area.
Using column data is good for categorical data, lines are good for data in which there is a relationship between data points. However sometimes you need to present both on the same plot area. In the example, showing an aggregated average as a line on the same plot as the column data.

I have included a screenshot and an example powerpoint for reference.

test.pptx