A playlist is a named, ordered list of drills you save for yourself — think of it like a YouTube playlist, but for drills. Create as many as you want (by theme, skill level, a specific class you run often, whatever's useful to you), and add or remove drills from any drill's detail page.
Every account also gets one built-in Favorites playlist automatically — it can't be renamed or deleted, and works as your default "save this for later" list.
Playlists are personal to you; they aren't automatically shared with students or pulled into a class. When you're building a class or drill session, you'll still search and filter your organization's drills the normal way — a playlist is just a fast way to get back to drills you've already decided you like.
Available to coaches and club admins. Students have playlists too, as a way to bookmark drills they want to come back to — see Saving favorites and building playlists.