The taskbar, is a quick way to switch between applications. The taskbar can be located in the panel (default), or outside the panel on the desktop.
This module has two options to control how the taskbar operates:
The top option, labeled Show all windows, determines if all open windows are included in the taskbar or not. By default, the taskbar only shows the open windows on the current desktop. If this option is enabled, the taskbar will show all open windows on all desktops.
Using the Show windows list button option, you can enable a little button to be shown in the taskbar: this button will open a popup menu offering access to applications on other desktops as well as some useful actions, like Unclutter Windows.
This section written by Mike McBride <mpmcbride7@yahoo.com>