To define parking spots we must access: 

System -> Facilities -> Parking spaces.

Once we have entered, we will see the list of parking spaces that we have created, if we have not created any, the list will be empty.

We can add new squares by pressing , edit the squares already created by pressing the icon or delete by pressing.

When we want to add a new square, we will see a window like the following:

Here we must indicate to the center to which belongs the parking space, the sub-center, the number of places that is a mandatory field, observations, lighting policy, booking schedule, web booking schedule, if it is blocked for any reason and indicate whether it is free, occupied or reserved.