It allows to add a new field in the application.
1º- When you click on a new button it is shown the image below, where we determine the amount of fields that will be added.
Image1: Amount of fields Interface.
2º- After we determine the amount of fields that will be added, it is necessary to define the settings of the new field (data type, name and label).
Image2: Interface of the Properties of the new field.
Note: The description of the field type is modified as the selection of the filed type.