Keyboard reference
 Panels
   Switch panels                   Tab
   Panels on/off                   ^O
   Toggle inactive panel on/off    ^P
   Swap panels                     ^U
   Toggle status panel             ^L
   Toggle function key bar on/off  ^B
   Reread directory/tree           ^R
   Select/unselect a file          Ins
   cd \                            ^\
   Select group                    gray +
   Unselect group                  gray -
   Invert group                    gray *  when command line
                                           is empty

------------------------ Command line ------------------------
 Cursor movement                 Delete
   Character left    ^S            Char left        BS
   Character right   ^D            Under cursor     ^G or Del
   Word left         ^A  or  ^.    Word left        ^W or ^BS
   Word right        ^T  or  ^.    Word right       ^T
   Start of line     ^Home         Line             ^Y
   End of line       ^End          To end of line   ^K

 History commands
   Previous command  ^E  or  . when both panels off
   Next command      ^X  or  . when both panels off
   Recent command    chars + ^Enter