DBxtra version 12+

If you want some of the pages in your report to have a different orientation, for example, your report shows its data in vertical mode, but you want to have a chart in horizontal mode, you can do so with sub reports.

For that, when you insert an unbound sub report, in the Property Grid go to Behavior and enable the Generate Own Pages option.

Then when the report is generated it will have its data in the orientation of the report, while the pages of the sub report will have a different orientation or size.