A list somewhere else, read on a schedule: whatever is new on it comes into your library.
In Broadcast: Server, Libraries, Import lists.
In Classic or Neu: Settings, Info, lists and subtitles, Import lists.
An import list is a list on Trakt, TMDB, IMDb, MDBList, Simkl or Letterboxd that Usherr reads now and then. Whatever is new on it is added, with the quality, folder and tags you choose for the list. Nothing is ever removed, and what you marked Not interested is skipped.
Trakt and Simkl need a key here first; TMDB, IMDb and Letterboxd lists don’t.
Pick where the list lives and paste its address (or, for IMDb and Letterboxd, choose the exported CSV file). Then the quality, folder, monitoring and tags for what it adds.
A title is added once: remove it later and the list doesn’t bring it back.