tmux pane breaking - MarekBykowski/readme GitHub Wiki
# To move around pane, first break it with "<prefix> !" (will break it into a separate window)
# then from within the pane send it to the window selected with "<prefix> s" below.
# Note the window must be preceded with ":", eg. :1
bind-key s command-prompt -p "send pane to:" "join-pane -t '%%'"