Since you are a "new user" but already have a custom configuration, you essentially have two different "languages" to speak with tmux.
- Shortcuts (The Hotkeys): Fast, everyday actions (like splitting or switching) using your Prefix:
Ctrl + a. - Commands (The CLI): Formal instructions typed into the status bar or your terminal (like
rename-sessionorkill-pane).
Here is your tailored cheatsheet for a workflow involving Emacs and Coding Agents.