It seems not possible to seed the recording creation form with attributes for e.g. URLs like "video".

Other attributes like dates don't seem to be accepted either. If they do, it needs to be documented, after several tests I couldn't figure it out:

• https://github.com/metabrainz/musicbrainz-server/blob/v-2022-03-14/root/static/scripts/edit/externalLinks.js#L459-L533
• https://github.com/metabrainz/musicbrainz-server/blob/v-2022-03-14/root/static/scripts/edit/externalLinks.js#L1678-L1680
• https://github.com/metabrainz/musicbrainz-server/blob/v-2022-03-14/root/static/scripts/edit/externalLinks.js#L1699-L1733