Printing the Page and Group Headers content across all the report

If you want to print the content of the Page and Group Headers across all the report, for example, like a watermark or side by side content, you can do so by selecting the Page or Group Header Band and in the Property Grid going to Behavior and enabling the Print Across Bands option.

This will print the Page or Group Headers content in the background of the other bands, so you must ensure that the content is distributed properly in the page to account for that.

Also, you must ensure the height of the Page or Group Headers Band is the same as the whole height of the report, so it fills the whole space.