'2 CLI windows? Why not tmux'
Learn the basics of my tmux config (stock is not wonderful)
From : https://en.wikipedia.org/wiki/Tmux " tmux is a software application that can be used to multiplex several virtual consoles, allowing a user to access multiple separate terminal sessions inside a single terminal window or remote terminal session. It is useful for dealing with multiple programs from a command line interface, and for separating programs from the Unix shell that started the program.[1] It provides much of the same functionality as GNU Screen, but is distributed under a BSD license."
- Tabs = numbered windows within a single session