[vtkusers] vtkChartXY question

[pof]

Hi all,
I need to draw 2 series on the same 2D plot:
- the 1st serie (linked to the left Y-axis) displayed as a bar chart (to 
show a frequency histogram),
- the 2nd serie (linked to the right Y-axis) displayed as a line plot 
(to show a cumulative distribution).
Is it currently possible with the vtkChartXY class (vtk5.6.1)?
If not, what would be the best class to do it?
Thanks
JD