Hi Robert,
Thank you for clarifying the requirements. Was the purpose to be able to edit the datasource output in the Editable Text Web part? If so, you would have to
develop a custom Web part.
Optionally, you could use the
Custom Table API to store the information from the datasource then you could create a custom macro that reads that information anywhere in the system.
Please let me know if you have any questions.
Thanks,
Sandro