How to manage data transfer options in Aggregate

What is the problem? Please be detailed.
I have changed my data transfer from a POST request to a direct Fusion Table injection, which worked fine.

My main question is how to correctly manage the data transfer options.
I don't mind deleting datastore entities... I see that opendatakit_form_service_cursor_2 has some entities that indicate what data transfer options have been elected for a given form. If I delete the relevant entities, would I break the server? It's very critical that I can manage the data transfer.

What ODK tool and version are you using? And on what device and operating system version?
I'm using ODK Aggregate v1.4.12 Production hosted on GAE

What steps can we take to reproduce the problem?

What you have you tried to fix the problem?

Anything else we should know or have? If you have a test form or screenshots or logs, attach here.