To configure the internal booking grids we can to go to:

Planning --> Ocupation --> Configuration of booking grids

On the next screen we can press  to configure the booking grid.

If you want to create a new one you can press "New":

We will open the following window, in which we can configure for example, the type of reservations (games, private lessons etc.), the start and end times, the time divisions or even the courts.

We will find a lot of types of reservation:

The booking types that allows us to create in this option will appear later when we try to make a reservation in our main board: