Import data \Samples\Graphing\Categorical Data.dat
Highlight Col(B) , and open the Grouped Box chart dialog.
Select Col(C), Col(D) as group, click OK.
Double click the graph to activate it. Click on the plot, in Minitoolbar,
select Fill Color -> By Plots ? Increment List to Color4Line. select Border Color ? Single ? Auto.
Change Parameter to reopen the dialog. Change Data to Col(A). Click OK.
==> The plot's format isn't maintained.