# DataKey Names (String Collection) Editor

Learn how you can set the names of key fields for the data source using the DataKey Names Editor of Spread Designer.

## Content



You can set the names of key fields for the data source. Select **DataKeyNames** under the **Data** section after selecting **Sheet** in the drop-down box to the right side of the designer.

![Spread Designer DataKey Names Editor](https://cdn.mescius.io/document-site-files/images/346c9178-0ed8-4fb9-908b-1565b22fb408/artwork/sd-editor-datakeynames.png)