After you create a Dataset, you may need to update its structure definition by adding an extra column. This section describes how to add a new column to an existing Dataset in any environment.
To create a new column in a Dataset, click the Add column option in the three dots menu for the Dataset.
The New Column window appears. Provide the Name and select the Data type for the new column
You can choose String, Numeric, Boolean or Datetime as the Data type.
Select a default value for the new column; this value will be set for every existing record in the dataset. You can choose null to set an empty value or custom to set a predefined value according to the Data Type selected.
When you are done, click Create column.