Okay, so having to scroll down and click Next is already strong deterrent for writers to keep their paragraphs short. However, is it possible to do this anyway just for further test-playthrough purposes?
input type=submit
“In my HTML forms, I like to allow users to submit the form by pressing the Enter key, without JavaScript. The easiest way to do that is to include an button.”
Words of Dan Fabulich himself, no less 
How’d you actually apply that to a choicescript game is a little more complicated.
You could always tab until you’ve selected next? 