No response to comment therefore assuming this is the solution...
You have
=Ceiling(RowNumber(Nothing) / 2)
(and also
Mod 2
.
If you want 6 rows per page your going to need to change it to
=Ceiling(RowNumber(Nothing) / 6)
. Because of your column grouping though I think you need to retain the
Mod 2
bit. There's not really enough information to help you further, other than to advise experimenting a bit with the two suggestions above.