For the image insertion, see the
Managing Mailmerge Graphics topic in the
Mailmerge Tips & Tricks 'Sticky' thread at the top of this forum:
https://www.msofficeforums.com/mail-...ps-tricks.html
For the 4 per page requirement, give your table a fixed row height of the required value, then tab out of the last cell to create a new row. Then make sure you have the 'label' merge type selected and choose 'update labels'. If you need to, you can insert an empty row between the label rows for vertical spacing.