We have some graph where one graph is on top of another graph and one that has four graphs.
I had thought that positioning and adding was done through NChartControl Panels member but in the
examples I see it being used to add charts. For the two graph case we want to add one graph above another.
We call ChartControl.Panels.Add but the graphs appear one on top of the other. Do we have to add a chart to an 
NDockPanel then add dock panel to NChartControl, or can we use a docking enum and add a chart to NChartControl.
And how is this done for four graph case?