Once you started tmux there are a lot of things you can do with it. Each action is prefix with a custom shortcut. This defaults to <Ctrl>-<b>. To activate an action you combine the prefix with the action shortcut. For example, to create a new terminal inside tmux you would hit <Ctrl>-<b>, release the keys and the quickly after, enter a single <c> for **create**. Here is a list of the most important actions: