Windowgrouper is a GNOME 2 panel applet that
allows you to group windows together so that when
one window in a group is minimized, unminimized,
or moved to another desktop, the same operation is
applied to the other windows in that group.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
