Currently, the combining charts (line chart and bar chart, for example) can only be obtained by overlapping two different charts in an XSL-FO file.
In order to obtain the desired behavior, you need to:
- Create the two charts you want to combine (in the same template) and then export the XSL-FO file.
- Open the exported .fo file and overlap the two created charts by using the padding-top property with a negative value on the second chart (see attached document).
- To move the second vertical axis to the right, you need to set the intersection='max' property on the xc:value-axis element of the second chart(the line chart on our case).
Note that you need to modify the chart properties in the XML View in order to obtain the desired design for your charts.