When having created a Dataset, you may need to update the structure defined by adding an extra column to its definition. This section describes how to add a new column to an existing Dataset in any environment.
In order to create a new column in a given Dataset, click on the Add new column option in the Dataset project board.
The New Column window is displayed. Type the Name, and select the Data type for the new column
Notice you may choose String, Numeric, Boolean or Datetime as the Data type.
Select the default value for the new column; this value will be set for every existing record in the dataset. You may choose null in order set an empty value or custom to set a predefined value according to the Data Type selected.
When finish, click Create Column.