All google searches seem to say to use the staff menu, but it isn't there in the newest version of NotePad.
It says how to do it here:
http://forum.ninsheetmusic.org/index.php?topic=481.0
However, it might not be something you can do in Finale Notepad. I would recommend using the template file (also found in the link above), as it has all of the NSM formatting in it.
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