This feature would allow us to select a paragraph or two and make it to where it is collapsed by default. But one could also expand it if that information applies to them.
You can see the use of sections on Hudu's support website (tools section). https://support.hudu.com/hc/en-us/articles/8056277827351-Knowledge-Base
Workaround: I create a new KB and then link to it so the one KB doesn't get so cluttered.