Place a solo or 2P variant at its own position in the demonlist.
The internal level ID used by the demonlist API
Solo and 2P have separate placements, proof, and record requirements.
Insert at this position in the selected mode; entries below it will shift down
Internal users.id of the publisher
Internal users.id; leave blank if no verifier is credited
Supported video link, including https://
0–100; leave blank to require a full completion
