Switch between sessions in tmux?

Question

I'm relatively new to tmux and use it just for local development. In some tmux tutorials, a person will list out their tmux sessions in an enumerated list. There is yellow highlight typically. Does anyone know what I'm talking about and how to do it? Secondly, would you say this is best practice? I'm over here with 8 iTerm2 tabs open :(

Here's a screenshot of what I'm looking for:

Answer 1

C-b s

found it! Alex's answer is awesome as well. Note C-b is my prefix, your prefix could be something else.

Answer 2

You're looking for C-b ( and C-b ). You can find this and many more wonderful tips on the tmux cheatsheet.

Answer 3

Is PREFIX s but the real command is choose-tree. Then you can use it to bind to other key for example to 'S'

bind S choose-tree

http://man.openbsd.org/OpenBSD-current/man1/tmux.1#choose-tree