If you would like to add a price per Block rather than per Session, navigate to the Project and then click on Blocks tab. Click on the relevant Block and scroll down. Under the Booking Site section, you will see a tickbox called Require All Sessions to Be Booked. Once this is ticked, it will display another field called Set Block Price. In this field, you can enter the price of the entire block. If this is left blank, the total of the session prices will be used. Then click Save.