Every account gets a built-in Favorites playlist automatically — tap the favorite icon on any drill to save it there. It can't be renamed or deleted; it's always your quick "save this for later" list.
Want more structure than one big list? Create your own playlists — named, ordered collections of drills, similar to a YouTube playlist. Make as many as you want (by skill, by session type, whatever's useful to you), and add or remove drills from any drill's detail page.
Playlists are personal to your account — they're a way to organize drills you've found, not something a coach pushes to you directly. When you're ready to actually practice, pull drills from a playlist into a self-practice session — see Building a self-practice drill session.
Available to all users, including students.