To manage your sportsbooks, go to the 'My Action' tab and then scroll down to the 'My Books' section under Utilities. From there, you'll be able to add, edit, and remove sportsbooks to your liking.
If there are any books under 'My Books' that you do not want, just click the edit button on the top right-hand side and then select the 'Remove Sportsbook' option. To select your primary book simply click the edit option and then choose 'Select Primary Book'.
By doing this, you'll always be able to see the best odds available to you when tracking your bets. The 'Best Odds' view will show you which book is offering the best odds for each wager option from the books you've chosen. You can also toggle to the left or right to view the odds from one of your particular books. (To learn more about how to use and set up Best Odds click here)