Do you already use right Alt?
You could map it to the Windows key in Gnome settings:
- System->Preferences->Keyboard
- Layouts
- Options...
- Alt/Win key behavior
- Left Alt is swapped with Left Win
Or you could map Caps Lock to the Windows key, and choose another shortcut for changing languages.
In the same control panel:
and then:
- Key(s) to change layout
- too many options to mention
Common choices include:
- Left Alt + Left Shift
- Left Ctrl + Left Shift
- Left Ctrl + Right Ctrl
but being an Emacs user, I would suggest the Both Ctrl keys together option.
If those options are insufficient, you will need to use xmodmap.
You could map Right Control to Windows at the shell like this:
xmodmap -e 'remove control = Control_R'
xmodmap -e 'add Mod4 = Control_R'
Depending on your system, you can probably also put the equivalent settings in .Xmodmap, e.g.
.Xmodmap
remove control = Control_R'
add Mod4 = Control_R'
If you'd rather use xmodmap than the Gnome control panel, you can change Control_R to something else, for instance right Alt is either Alt_R or ISO_Level3_Shift, depending on your keyboard settings, e.g.
xmodmap -e 'remove ISO_Level3_Shift = Mod5'
xmodmap -e 'add Mod4 = ISO_Level3_Shift'
works for me.
Best Answer
You could buy one from ZaReason.com, but they are out of stock right now.
System76 gives away free Ubuntu stickers, including ones for the Super key, instructions on how to get them: http://www.system76.com/community/stickers/