Is it possible in FileMaker 12 to create a column graph with a superimposed line chart (I have uploaded an image for an example). Is there some way to assign a different chart type to a second series? I guess that's my question.
Sorry but that's not an option with FileMaker's current charting tool.
I suppose it might be possible to place one transparent chart object on top of the other, but care would be needed to keep the scales of the two objects identical and I don't know if the resulting appearance would be acceptable or not.