Here's a quick, simple example of what it does. It automagically moves that stranded first line and moves it to the top of the column on the next page. I've found this method isn't perfect, but it's gets me a lot closer to the final goal faster than without it.

Hah. Forgot to turn on text wrapping for the bottom image on the second page. Would have been a better example with that, but you get the idea. 😅