Lock Trigs/Trigless Trigs for pattern transistions?

I’ve had my Digitakt for about a month- i’ve made some good beats and patterns that can transition ok, but have potential for smoother and more dynamic transitions.

I saw this video and was super impressed by what she was doing. She says that she add infinite play on a track with lock trigs and that somehow plays over to the next pattern allowing her to do a really effective transition.

I had a couple questions: i’ve placed lock trigs on all my trigs but now they don’t play when i hit play, and so i can’t do that infinite looping to the next pattern.

here’s the video in question!