Matrix Totaling question

Is it possible to set the background color on the Total (Row and/or Column) of a Matrix. I'm talking the entire Row and/or column not just the cell that reads "Total". I would like to have my subtotal rows and columns to be gray.Yes, It is possible!
In the textbox that has the "Total", you'll see, in the right upermost corner, a "green flag"; click and in the properties window set the background color to gray.
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Telmo Moreira