byobu cheatsheet (from F9 -> quick start guide) - http://askubuntu.com/questions/661940/i-just-dont-get-byobus-keybindings-systems-or

byobu_cheatsheet

Byobu is a suite of enhancements to tmux, as a command line
tool providing live system status, dynamic window management,
and some convenient keybindings:

  F1                             * Used by X11 *
    Shift-F1                     Display this help
  F2                             Create a new window
    Shift-F2                     Create a horizontal split
    Ctrl-F2                      Create a vertical split
    Ctrl-Shift-F2                Create a new session
  F3/F4                          Move focus among windows
    Alt-Left/Right               Move focus among windows
    Alt-Up/Down                  Move focus among sessions
    Shift-Left/Right/Up/Down     Move focus among splits
    Shift-F3/F4                  Move focus among splits
    Ctrl-F3/F4                   Move a split
    Ctrl-Shift-F3/F4             Move a window
    Shift-Alt-Left/Right/Up/Down Resize a split
  F5                             Reload profile, refresh status
    Alt-F5                       Toggle UTF-8 support, refresh status
    Shift-F5                     Toggle through status lines
    Ctrl-F5                      Reconnect ssh/gpg/dbus sockets
    Ctrl-Shift-F5                Change status bar's color randomly
  F6                             Detach session and then logout
    Shift-F6                     Detach session and do not logout
    Alt-F6                       Detach all clients but yourself
    Ctrl-F6                      Kill split in focus
  F7                             Enter scrollback history
    Alt-PageUp/PageDown          Enter and move through scrollback
    Shift-F7                     Save history to $BYOBU_RUN_DIR/printscreen
  F8                             Rename the current window
    Ctrl-F8                      Rename the current session
    Shift-F8                     Toggle through split arrangements
    Alt-Shift-F8                 Restore a split-pane layout
    Ctrl-Shift-F8                Save the current split-pane layout
  F9                             Launch byobu-config window
    Ctrl-F9                      Enter command and run in all windows
    Shift-F9                     Enter command and run in all splits
    Alt-F9                       Toggle sending keyboard input to all splits
  F10                            * Used by X11 *
  F11                            * Used by X11 *
    Alt-F11                      Expand split to a full window
    Shift-F11                    Zoom into a split, zoom out of a split
    Ctrl-F11                     Join window into a vertical split
  F12                            Escape sequence
    Shift-F12                    Toggle on/off Byobu's keybindings
    Alt-F12                      Toggle on/off Byobu's mouse support
    Ctrl-Shift-F12               Mondrian squares
    
/usr/share/doc/byobu/help.tmux.txt (END)

official site:
http://byobu.co

10 min video tutorial:
https://www.youtube.com/watch?v=NawuGmcvKus

@sdeastham Ctrl-a + ? gives a list of current bindings. Use / to search through the many commands.

@dmp1ce Thanks for this! It also led me to the excellent menu resulting from Ctrl+>, which I recommend to anyone (like me) who can never remember exactly how to shift their panes around...

I am not able to Toggle f-keys on and off. I need to press F6 during kernel to save config, but everything I do detaches the session. I've tried shift+F12, and then ctrl+a+! Shift+F12. How can I Toggle off F-keys so I can use F6 key without detaching a session?

Byobu tmux as backend.

I am not able to Toggle f-keys on and off. I need to press F6 during kernel to save config, but everything I do detaches the session. I've tried shift+F12, and then ctrl+a+! Shift+F12. How can I Toggle off F-keys so I can use F6 key without detaching a session?

Byobu tmux as backend.

For some reasons, from some terminals Shift + F12 works for me, in others it doesn't but F6 does work, so yes, very annoying. I had a look in the list of defined keybindings: ctrl+a : list-keys. There is reveals how the S-F12 works and you can "emulate it":
with ctrl+a,: you switch to command mode in tmux
and then you enter:
source-file /usr/share/byobu/keybindings/f-keys.tmux.disable

To later re-enable shortcuts (they are handy!)
ctrl+a : source-file /usr/share/byobu/keybindings/f-keys.tmux

Thanks for the reply, and it might be useful for someone, but this got me to using actual tmux, and now I'm not sure why I didn't just start off that way. Soo much documentation, and plugins out there from for tmux community that it's a lot easier to use actually...and best part, no F-key issues.