In the Tools -> Customize ... dialog, a user can assign key strokes to issue 
menu commands or modify those already assigned.  The allowable key strokes 
which can be edited include the <SHIFT> key and the <CONTROL> key in 
combination with the other keys of the keyboard (e.g., <CONTROL>+Q, etc.)  
Additionally, both modifier keys may be used (<SHIFT>+<CONTROL>+Q, etc.)

This feature should be enhanced to allow the user to modify key stroke 
combinations including the <ALT> key (e.g., <ALT>+Q and <CONTROL>+<ALT>+Q, and 
<SHIFT>+<ALT>+Q, and <SHIFT>+<CONTROL>+<ALT>+Q, etc.)