Add follow to members posts in Buddypress

I can see that you can only follow a person from the members profile. But I would like something like on Facebook, where you can follow posts. I found this: https://github.com/r-a-y/buddypress-followers/wiki/Add-a-follow-button-on-a-regular-WP-page

But I dont know where the post loop is. I have been looking at the files, but can't find it. Is it because its in another folder. Can someone tell me, where it shall be put?