Black Book functionality is available for NBA. It's essentially a permanent shortlist of your 'favourite' players. To add players to your Black Book, hover over the green button in the right hand corner where your name is and select Black Book from the dropdown.
You can select your players there and manage them throughout the season, then go to the Cruncher and choose 'Load Black Book' to load all of the players in.
Using black book gives you a way to permanently shortlist and exclude players, saving you significant time each day with sports such as NBA.