Although there is no built-in functionality for achieving this, you can do this through extensibility. Measurement Studio controls provide extensibility points in the API that let you participate in the drawing of the control. In the case of the plot, you can attach an event handler to the BeforeDraw event of the plot to hook into one of these extensibility points. You will need to save the new data set (to be drawn in a different color), In the event handler:
1. Call DrawFillsToBase to let the plot draw the fills.
2. Get the new data set that you saved and use the MapDataPoints method to convert the new data set to screen points that you can draw.
3. Create a GraphicsPath with the mapped screen points and fill the GraphicsPath with the color of your choosing.
4. Call DrawLinesToBase to let the plot draw the bins.
5. Call DrawLines, DrawPoints (if you are using PointStyles), and DrawErrorBands (if you are using error bands, new in Measurement Studio 8.1) in that order.
6. Set the Cancel property of the event args to true to cancel the plot drawing.
Note that the above algorithm will draw bin lines in the same color, but the fill (inside the bars) in a different color.
For more information on extending the plot you can look up:
1. Concept topic - In Visual Studio, go to the Help menu and click on Contents and browse to NI Measurement Studio Help >> NI Measurement Studio .NET Class Library >> Using the Measurement Studio .NET Class Libraries >> Using the Measurement Studio Graph .NET Controls >> Extending the Measurement Studio Graph .NET Controls >> Creating a Custom Plot for the Measurement Studio Scatter and Waveform Graph .NET Controls.
2. Example - <Meausurement Studio Folder>\DotNET\Examples\UI\Graph\Extensibility