See the "Display list of merge fields in a non-modal dialog box" under the
"Mail merge in Word 2002/2003 section of fellow MVP Cindy Meister's website
at
http://homepage.swissonline.ch/cindymeister/MergFram.htm
Alternatively, just insert them all at one time and then, after dismissing
the dialog, go and insert spaces and carriage returns between them as
required. That's not really such a bad way to do it, even if you have to
select then drag and drop a few of them.
--
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Hope this helps,
Doug Robbins - Word MVP