  Block Concepts   ;display_help "blocks"
       Mark        ;display_help "marking"
  Delete and Cut   ;display_help "cut"
       Copy        ;display_help "copy"
       Paste       ;display_help "paste"
       Write       ;display_help "writing"
       Print       ;display_help "printing"
      Search       ;display_help "searching blocks"
      Indent       ;display_help "indenting blocks"
    Change Case    ;display_help "case conversion"
