Using symbols in a multicolum​n listbox

I can't seem to show symbols in the second column of a multicolumn listbox. I tried some example code I found on NI.com and there seems to be something unique about the multicolumn list box they used in the example. If I put down a new one it doesn't work. What's the trick?
Doug Ferguson
www.southerndaqsolutions.com

Here are my findings from my quick playing around.
The symbols have to be made visible (right-click, Visible menu).
Only the first colum of data can have symbols.  The property is a 1D array.  Doesn't make much sense to me, but whatever.
You can have Row Headers (also in right-click, Visible menu).  You can then color these headers to make them look like actual data.  This will make it look like the second colum has the symbols.  You also have to write to the row headers via another property (Row Header Strings).
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