The show-numbers property of type :boolean (Read / Write)
Whether the first ten items in the menu should be prepended by a number acting as a unique mnemonic. Default value: false
Details
The gtk-recent-chooser-menu widget is a widget suitable for displaying
recently used files inside a menu. It can be used to set a sub-menu of a gtk-menu-item widget using the gtk-menu-item-submenu slot access function, or as the menu of a gtk-menu-tool-button widget.
Note that the gtk-recent-chooser-menu widget does not have any methods
of its own. Instead, you should use the functions that work on a gtk-recent-chooser widget.