Grouping two sub-summary fields to prevent page breaking

[Pentagram]

I've built a columnar reporting layout that has two sub-summary parts. The database collects data on pages printed by our staff. The first sub-summary presents "pages printed" and "cost" sub-totals for each different page size printed for a particular project during the given reporting period. The second sub-summary displays a total for ALL the pages printed and the total cost for each job.

The report works fine EXCEPT, there are times when a page break happens between the two sub-summaries. I would like to prevent that.

Does anyone know of a way to "group" two sub-summaries together so they won't break onto two different pages?