When dropped on the current page the background shapes automatically adjust to the size of the current page. This is more obvious when the page has a landscape orientation. This same feature is also used in the border shapes. To make your own background shape, create a shape that has no problems being stretched and then set the Width and Height cell in the Shape transform section. The new formulas should be Width =GUARD(ThePage!PageWidth) and Height =GUARD(ThePage!PageHeight). The Guard will prevent the formula from being changed. If you do not play with the background you may not need to set … Continue reading How do the background shapes work?