pageDown(_:) Moves the visible content region down by a page. Declarationoptional func pageDown(_ sender: Any?) See AlsoScrolling ContentscrollPageDown(_:)scrollPageUp(_:)scrollLineDown(_:)scrollLineUp(_:)scrollToBeginningOfDocument(_:)scrollToEndOfDocument(_:)pageUp(_:)pageDownAndModifySelection(_:)pageUpAndModifySelection(_:)centerSelectionInVisibleArea(_:)