I have two different groups of data in a report, which I'd like to display individually, rather than as nested groups.

The data to be group consists of Product Orders (group 1) and Manufacturing Instructions (group 2).

In the report, I'd like to display all the Product Orders, (0 to many) and then the set of Manufacturing Instructions (1 to many). 

With the way I'm grouping now, the set of Manufacturing Instructions gets repeated once for each Product Order, which is just duplicating the same data.

Is there a way to accomplish this, with or without groups?

I've considered using a separate subreport to display the Product Orders, but the calling code only knows how to pass one parameter, leaving little leeway to request separate data from the DB.