Deleting Data Set Attributes
To delete data set attributes:
In your application, select Manage, and then Data Sets.
Select a data set, and then click Edit.
Select the Attributes tab, then an attribute, then Actions, and then Delete:
If data exists, you cannot delete the attribute.
If no data exists, but the attribute is referenced in a form template, you cannot delete the attribute without first removing the attribute from the form template.
Click Yes to answer the message, “Are you sure you want to delete the selected items?”
Click Save, Save and Close, or Close.