Parallel execution in splitscreen?

Question

I'm very well aware, that I can use xargs to run commands in parallel. However since the consoleout of the commands is important I was wondering if I could split the console window similar to how screen allows you to split the console window.

So is there a way I could convert a script like the following to run n parallel while each execution is shown inside it's own console "window"?

for file in directory/*; do
    command1 $file
    command2 args $file ...
    etc
done

Answer 1

Using GNU Parallel (> version 20180122):

parallel --tmux --fg echo ::: 1 2 3 4