How is this channel able to flawlessly create mobile annotations. If you notice at the end of the video he's able to create mobile annotations right on the video linking to other videos and channels. He's definitely not using Info cards because if you notice their is no "i" at the top right corner. And also definitely couldn't be using regular annotations as those are not clickable on mobile devices. I tried everything and can't figure it out. Any input would be great thanks. I don't think I can add links so here is the title of the video. Baby Annabelle Eats Spaghetti & Pees On Victoria Messy "Toy Freaks"