Word can't use what you have for a label merge.
What you could do is delete all except the first cell you modified, format the document as having a two-column page layout, minimise & hide the paragraph following the table, then use a Directory/Catalog merge.
See attached. You may yet need to adjust the intra-column spacing.
__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]
|