1 HY_FETCH
  Syntax: HY_FETCH filename id1[&idb] [:id2] [id3...]

  Fetches HYBRID histograms from a  file. To fetch all histograms give the
  command `HY_FETCH  filename 0'. To  specify a range  of histograms, give
  the command  `HY_FETCH  filename  id1:id2'. If  you want to  fetch other
  histograms from the same file give  the command `HY_FETCH id1,id2...' To
  fetch 2-dimensional  plots give the command  `HY_FETCH filename 0&2'. To
  fetch 1 and   2-dimensional plots  give the  command
  `HY_FETCH filename  0&1:2'.  All  the  1-dimensional  histograms will be
  given the  default  secondary identifier.  The  2-dimensional histograms
  will be given the default secondary identifier `+1'.

