Tmux is a well-written terminal multiplexer. It allows access to multiple separate terminal sessions inside a single terminal window or remote terminal session. It can do quite a lot when advanced configurations are taken into account. Here Gregory Pakosz' explains his pretty and versatile tmux status bar modifications line by line. His modifications look great and just work, combining form and function.
https://github.com/gpakosz/.tmux/blob/master/README.md
(Score: 1, Interesting) by Anonymous Coward on Friday May 11 2018, @11:08AM
at some point I was looking into this, but ended up using plasma (I still think of it as kde, but whatever), with multiple separate terminator windows that I tile using "xdotool" from inside the terminal.
I wrote a little script which takes desired grid shape/position as parameters, and then applies them to the current window.
once the terminals are in place, I can resize everything else with "snap" functionality.
this works beautifully on my 3840x2160 display.