Smart Key - Pages Directory Mode

Pages-directory-mode is used in special buffers that contain title lines extracted from files consisting of titled, page-delimited contents, e.g. Info files.

When pressed on a pages-directory-mode entry line:
  ACTION KEY
     Jumps to the associated line in the pages file that contains the entry.
  ASSIST KEY
     Jumps to the associated line in the pages file that contains the entry.