FindReplace         <Ctrl QA> or <Esc><S><R>
    -------------------------------------------------------------------------

    Searches and replaces strings within the current file.  The User is
    prompted for a search string, a replace string, and options.
    Available options are:

          [I] Ignore the case of the search string.
          [W] Whole words only.
          [B] Backwards from the current cursor position.
          [N] Find and replace without prompting.
          [G] Global: start at top of file, not cursor position
          [L] Limited: search only within the current marked block

    You can use any combination of the above search options.

    You can also include a number in the options box, to restrict
    the FindReplace operation to that number of replaces.

    You can press <Ctrl Break> to abort a long FindReplace.

    The "G", "L" and number options, and <Ctrl Break> checking,
    were added in QEdit v2.1

    At every occurrence of the search string in the file, the User is
    given the following replace options.

          [Y] Replace the search string with the replace string and
              continue on to the next occurrence of the search string.
          [N] Do not make any changes but continue on to the next
              occurrence of the search string.
          [O] Replace the search string with the replace string and
              then terminate the FindReplace process.
          [R] Replace the search string with the replace string for
              this and all the "rest" of the occurrences without
              any further prompting.
          [Q] Terminate the FindReplace process.