Up, Down, PgUp, PgDn  move around in the panel 
CtrlPgDn              goto end of list of files
CtrlB                 goto beginning of list of files
CtrlO                 Flip off/on the panels
Tab/BackTab           Goto next/previous panel
CtrlE/CtrlT           Expand/Trim the panel
AltW                  Wide/narrow display
CtrlU                 Exchange the panels
CtrlR                 Refresh  the directory
AltN                  sort panel by name
AltS                  sort panel by size
AltE                  sort panel by extension
AltT                  sort panel by time
