code: def precmd(self, line):
          
          if line.startswith('help'):
              if not q("`help in key`.q"):
                  try:
                      q("\\l help.q")
                  except kerr:
                      return '-1"no help available - install help.q"'
          if line == 'help':
              line += "`"
          return line
docs: Support for help