Group Similar Windows in GNOME
Or for some of you still stuck on Windows, you are more familiar with the term taskbar.
If you want to automatically group different windows of the same application when you’re running out of room (or just group them all the time) then all you have to do is right click on the Window List area (taskbar) and click Preferences to open up its options dialog. Under the Window Grouping section, select whether you would like to automatically group similar applications when space runs low, or all the time, and then close the options dialog.



