Please check my last post in Crosstab rows repeat.
If you prefer to add a parent row group by the field, please check the attached video - SWF file that can be previewed in IE browser.
If you need further help, please let us continue the discussion in one of both threads, in order to keep a better track on the exchanged information. You can also submit a support ticket with a demo report and details about the layout you want to achieve.
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