docs: def show_help(self):
          """ Redraw Help screen and wait for any input to leave """
          self.s.move(1,0)
          self.s.clrtobot()
          self.set_header('Help'.center(self.pad_w))
          self.set_footer(' ESC or \'q\' to return to main menu')
          self.s.refresh()
          self.current_pad = 'help'
          self.refresh_current_pad()