Byobu is an enhancement to GNU Screen, a command line tool
providing live system status, dynamic window management,
and some convenient keybindings:

F2    Create a new window    |  F6    Detach from the session
F3    Go to the prev window  |  F7    Enter scrollback mode
F4    Go to the next window  |  F8    Re-title a window
F5    Reload profile         |  F9    Configuration
                             |  F12   Lock this terminal
'screen -r'  - reattach      |  <ctrl-<esckey>> Escape sequence
'man screen' - screen's help | 'man byobu'  - byobu's help