Ctrl+b = C-b
Ctrl+b " = Ctrl+b release, then press shift + '.
Ctrl+b " — split pane vertically.
Ctrl+b % — split pane horizontally.
Ctrl+b arrow key — switch pane. https://www.hamvocke.com/blog/a-quick-and-easy-guide-to-tmux/
Hold Ctrl+b , don't release it and hold one of the arrow keys
Ctrl-b then [ https://superuser.com/a/209608
C-b { move the current pane to the previous position
C-b } move the current pane to the next position
C-b C-o rotate window ‘up’ (i.e. move all panes)
C-b Alt-o rotate window ‘down’ https://gist.github.com/andreyvit/2921703