OK, I think I understand now.
I think that you'll want to prequalify the data, rather than try to accomplish this using the current methodology.
It's best to handle this sort of thing in SQL,
IN CR, try this:
Create a formula which combines the Order+Doc field, and group on this.
Place this field into the details section and create a insert->summary->count for it
Now delete the details field and drag the count of it into the group header.
In the details section place your fields, and build a suppression something like:
Count ({@Combined}, {@Combined}) > 1
That should only display those that have a QTY > 1
-k
kai@informeddatadecisions.com