The ingest plugin is based around the NewsML standard, so the article type created in Newscoop and also the ingest database structure are influenced by this.
Right
now it's not possible to map fields from you ingest source to fields
from a custom article type. I agree it would e a cool feature, but i don't think this is on our planning in the near future.If you are/have a developer you can fork our plugin https://github.com/newscoop/plugin-IngestPluginBundle and make your own modification where required.
This file https://github.com/newscoop/plugin-IngestPluginBundle/blob/master/Services/PublisherService.php contains the most important mapping from ingest source to newscoop article. It would be a good starting point.
It looks like you're new here. If you want to get involved, click one of these buttons!