@satyamuddalaThank you! This was a great help, but it doesn't quite work. (Testing now in AEM 6.2)You gave me a great lead that the namespace data is stored at /jcr:system/rep:namespaces/rep:nsdataBUT, it doesn't appear that it can be deleted.In CRX Explorer or CRXDE Lite you can delete it but whe...