I was wondering if it is possible to build a chart in highcharts such as a dual-axis column and line but with multiple series data.
For instance, take the basic column chart that shows the monthly average rainfall for Tokyo, New York, London and Berlin: http://www.highcharts.com/demo/column-basic. Then also add the average temperature on the opposite Y-Axis for the four cities (basically adding four lines to the chart).
I know that's a lot of data to cram into one chart, but I was curious if it could be done. Sorry that I don't have a better example to show. I haven't had much luck so far playing around with JSFiddle. Thanks for the help.