Adding a collection collaborator
Collaborators can modify collection settings, receive payments for items they created, change the collection's royalty payout address, and create new items.
You should only add collaborators whom you know and trust.
To add a collaborator, head to the collection editor. At the bottom, you'll see a field to add the wallet address of your collaborator.
Once you've pasted the address, click submit. Because OpenSea does not currently notify the added collaborator, you will need to inform your added collaborator that they can now view this collection and have access to make changes.