Ok,makes sense. Using this terminology, I asked claude and found out how to move a shell from a standalone window to sharing 2 panes with another shell. Incid

Ok,makes sense. Using this terminology, I asked claude and found out how to move a shell from a standalone window to sharing 2 panes with another shell. Incidentally, this "screen absent" is why you should always volunteer to help create base shells (programmatically via packer not by hand) - emacs and tmux are always there when I made the image.