Enabled! In fact, I’m using this app specifically because the jump button works so much better than the other two top iOS apps. Memmy’s is a buggy mess that always returns you to the top of the post the first time you tap it. Voyager’s seems to be perfect. Goes down one thread when tapped, and goes up one thread when held. I dunno if it should be on by default or not, but it is a big advantage of this app over Memmy and Mlem.