Exactly what do you want to do?

You can in a form letter type mailmerge, insert the mergefields, then a
<<Next Record>> field and another set of the mergefields (anywhere in the
document) and you will then get a series of letters, each containing the
data from two records and the number of letters created will be one half of
the number of records in the data source.

But, I doubt that is what you want.

Word does not really have the ability to perform a "multiple items per
condition (=key field)" mailmerge.  And, though I have not used WordPerfect
for about 10 years, I doubt very much that it has the ability to do it
either.  It is really something that is better done in a database such as
Access using grouping in a Report.

See the "Group Multiple items for a single condition" item on fellow MVP
Cindy Meister's website at:

http://homepage.swissonline.ch/cindymeister/mergfaq1.htm#DBPic

Or take a look at the following Knowledge Base Article "How to Work Around
Duplicate Names in Mail Merge Data" at:

http://support.microsoft.com/default.aspx?scid=kb;en-us;302665