[harlowe] How do you click through options?

I'm still not completely familiar with the terms, so I was iffy on how to phrase this question.
Anyway, I played a couple twine-made games to see what the engine could do and a lot of them used this effect where you could click through options on the same line, and when you settled on one thing, you could move on from there.

I looked around the internet for this but I couldn't find anything, or maybe I just didn't understand them.