GNOME 2.2 Desktop on Linux User Guide

Minimise Windows Button

Minimise Windows icon.

You can use the Minimise Windows button to minimize all open windows and show the desktop.

To add a Minimise Windows button to a panel, right-click on any vacant space on the panel. Choose Add to Panel -> Actions -> Minimise Windows. To minimize all windows and show the desktop, click on the Minimise Windows button.