I don't have that access:

Level 8
Assign sample cards to sets
Assign sample cards to names
Close a set down from further edits
Create new team entries
Edit set's year and name
Insert an entry into an existing checklist

And also:

Frequently Asked Questions

• How do I add a card to the database?

Cards are added to the database a full set at a time. First an entry for the set is created, then the checklist for the set is submitted. See How do I add a checklist to the database? for further details.

For sets where the checklist already exists but there is a card missing, send a request through the Inaccuracies reporting box on the set's page to have the card added.