nano: Feature Toggles

 
 7 Feature Toggles
 *****************
 
 Toggles allow you to change certain aspects of the editor while you are
 editing, aspects that you would normally specify via command-line
 options or nanorc options.  Each toggle can be flicked via a Meta-key
 combination — the ‘Meta’ key is normally the ‘Alt’ key (⇒Commands
 for more details).  The following global toggles are available:
 
 ‘Constant Cursor Position Display’
      ‘M-C’ toggles the ‘-c’ (‘--constantshow’) command-line option.
 
 ‘Smart Home Key’
      ‘M-H’ toggles the ‘-A’ (‘--smarthome’) command-line option.
 
 ‘Auto Indent’
      ‘M-I’ toggles the ‘-i’ (‘--autoindent’) command-line option.
 
 ‘Cut From Cursor To End-of-Line’
      ‘M-K’ toggles the ‘-k’ (‘--cutfromcursor’) command-line option.
 
 ‘Long-Line Wrapping’
      ‘M-L’ toggles the ‘-b’ (‘--breaklonglines’) command-line option.
 
 ‘Mouse Support’
      ‘M-M’ toggles the ‘-m’ (‘--mouse’) command-line option.
 
 ‘Line Numbers’
      ‘M-N’ toggles the ‘-l’ (‘--linenumbers’) command-line option.
 
 ‘Tabs To Spaces’
      ‘M-O’ toggles the ‘-E’ (‘--tabstospaces’) command-line option.
 
 ‘Whitespace Display’
      ‘M-P’ toggles the displaying of whitespace (⇒Whitespace).
 
 ‘Soft Wrapping’
      ‘M-S’ toggles the ‘-S’ (‘--softwrap’) command-line option.
 
 ‘Expert’
      ‘M-X’ toggles the ‘-x’ (‘--nohelp’) command-line option.
 
 ‘Syntax Coloring’
      ‘M-Y’ toggles syntax coloring, when your nanorc defines syntaxes
      (⇒Syntax Highlighting).
 
 ‘Hidden Interface’
      ‘M-Z’ toggles the ‘-0’ (‘--zero’) command-line option, but without
      the ‘-x’ (‘--nohelp’) part.  That is: it toggles just the title bar
      plus status bar (or the combined minibar plus status bar), not the
      help lines.  The latter are toggled with ‘M-X’.