Assign access to specific items inside a collection rather than the full collection

[Sign0ret]

On the collection declaration file, it might be super useful to be able to declare a collection as "modular", and add new access permissions to this modules. With modular I mean, if I want to give permission to one user to only one post and not the full collection. And when the collection is assigned as modular, automatically when generating a new entry to this collection, a field of users at the top should be displayed and you should choose who has access. I know this can be achieved by adding a relation to users and adding different access permisions, but it just would be super easier to just declare a collection as modular. Then on the api/collection request is fetched, only the items inside that collection which has the value of "all" or contains the user id should be added. I love you Payload.