Oddly, it doesn't mention tmux ( http://tmux.sourceforge.net/ ), a newer project that implements a similar terminal multiplexer. It was redesigned from the ground up to more cleanly accommodate several features that have been grafted onto the screen codebase. (It also has a BSD license, FWIW.) After years, screen still doesn't do vertical screen splits. It turned out to be faster to just start from scratch.
Please accept my heartfelt thanks for pointing me (and hopefully many other people) to this awesome piece of software.
Screen how it should have worked from the beginning.
You completely sold me the moment I pressed ^B= and then used the cursor keys(!) to scroll the window (what HORROR - intuitive scrolling).
Thank you ever so much.
You made my day.