Send Tmux Pane to Window
A scenario I find myself in frequently: I've started a server in a Tmux pane, and realize I don't need to see the server logging in my 'home' Tmux pane (pane 0 for me).
To send a Tmux pane to its own window, use :break-pane.
A nice addition is the -n flag, which lets you set the new window name while breaking the pane.
:break-pane -n frontend-elm