Comment by Kamil Maciorowski on How do I resize tmux pane by holding down prefix and arrow key for a while?

@user1717828 tmux list-keys lists key bindings. To see default key bindings you need to ask a tmux server started without any non-default config and without commands that may have altered the config; a fresh server would be nice. Something like tmux -L myfreshserver -f /dev/null list-keys, I think.