same command invoked by this menu item. If you specify a correct key
sequence, that sequence will be preferred over others.
-If you specify in incorrect key sequence, it has no effect; before Emacs
+If you specify an incorrect key sequence, it has no effect; before Emacs
displays @var{key-sequence} in the menu, it verifies that
-@var{key-sequence} is really equivalent to this menu item.
+@var{key-sequence} is really equivalent to this menu item. Specifying
+@code{nil} for @var{key-sequence} is equivalent to the
+@code{:key-sequence} attribute being absent.
@item :keys @var{string}
This property specifies that @var{string} is the string to display