The asterisk key (*) may be used to fill in  all  thirteen  privileges
 into the grant, deny or banish privilege fields.

 An asterisk will fill in all privileges not in one of  the  fields  to
 the  left  of  the current field, and will clear all the privileges in
 the fields to its right.

 To display help on another key, press that key.
 To return to editing, press the space bar.