Add an option for multi-panel "tmux-like" generator, for extra multi-tasking

I would like to have an option to launch several genact modules running together. I can do it with a simple TMUX command, or i can offer a pull request and use a terminal panel management like Ratatatui and start to work on an "out_of_the_box" very serious tmux-ish genact option.

I opened an issue to start a discussion, drop a comment if that sounds like a good idea or not,