To add a column to the Web Part:
- On the Custom Data Sources Configuration dialog box, select the data source
in the Configured Data Sources list.
- Click the Add button (
).
- In the Internal field name box, enter the identifier for the data you want to
display from the data source.
- In the Display field name box, enter the name you want to appear in the
SharePoint list.
- Click the Update (
) icon.