WORD CANNOT ASSIGN THIS KEY CODE TO A MACRO
OR GLOSSARY ENTRY.
 
Press Ctrl, or Shift+Ctrl, and the key(s) you
want to assign as the key code.
 
■ Return to the dialog box and press F1 for more
  information.
■ See Ch. 18, "Glossaries," or Ch. 22, "Macros,"
  in the Using Manual for more information on key
  codes.