gemini://thatit.be/2023-11-07-08-29-56.gmi
A random sampling of tmux keybindings (unorthodox) and related scripts can be found at:
Some things to dabble with (I don't use them much) are the "capture-pane" and "save-buffer" commands. You might also find longer tutorials or books on tmux and work through those for other ideas, as tmux can be used in a lot of different ways and who knows what works for you.