Section subscribers: how does it work?

I started writing on substack two months ago now. It’s a slow but enjoyable journey so far. I’ve recently introduced a new section as I wanted to keep within the same topic area but test a different style of writing. It’s a temporary section but I’d like to introduce another that’ll be permanent.

Right now, I’ve been trying to include subscribe buttons within posts from my new section but I’ve realised it only links to my main publication. I can’t see where potential subscribers can subscribe to a specific section.

Can anyone clarify please?