Nested Grouping in Crystal Reports for .NET 2005

So far, I am not finding any way to nest multiple "SubGroups" in a Group. From what I can see, Crystal Reports Grouping works strictly in in terms of a parent Group having a single child Group and that child then being able to have its own child Group. Am I right in this

What I am trying to do is set up grouping such that a report is grouped by Market, then Branch, then both Preset Header, and Location. Ideally all the presets (programming templates) belonging to a branch would be parallel to the locations in a branch. Then, the controls within each location could be displayed.

Any ideas