However this is what I would do...
Copy source records (10) multiple times in the data file to fill all labels
in n pages...
What I mean is that if a printed page can print 32 labels then in 5 pages
you can have 160 lables (16 for each record)... so have 16 sets of 10 records
in your data file...
If you want more than 160 labels then you can print multiple copies of the
merged document.