There are a couple of ways of doing this.

Use the same datasource for a directory type mailmerge for the main document
of which you insert the mergefields inside the cells of a one row table.
When you execute that merge it will create a document with table containing
a row for each record in the data source.

Another way is to display the old Mail Merge Helper dialog by selecting
Customize from the Tools menu and then on the Commands tab of the Customize
dialog, select the All Commands category and then scroll down through the
list of commands until you come to the Mail Merge Helper item.  Click on
that and drag it onto a toolbar or menu.  In section 2 of that dialog, you
can edit the datasource and print it if you need to.