It seems that all the labels would be the same? That being the case you can simply duplicate the first label on the rest and print as many copies as you need. A macro can simplify that e.g.
Code:
Sub DuplicateLabels()
Dim oTable As Table
Dim oField As Field
With ActiveDocument
.MailMerge.MainDocumentType = _
wdMailingLabels
WordBasic.MailMergePropagateLabel
For Each oTable In .Tables
For Each oField In .Fields
If oField.Type = wdFieldNext Then
oField.Delete
End If
Next oField
Next oTable
.MailMerge.MainDocumentType = _
wdNotAMergeDocument
End With
lbl_Exit:
Exit Sub
End Sub