TLDR: Make collection admin hidden function async and provide PayloadRequest object instead of only user.

[ckruppe]

Right now i am implementing an somewhat different kind of multi tenancy for an customer.

Its different in terms of how the tenancy is used. Collections and collection items are tenant dependent but not the users themselves.

So every user has access to every tenant. The tenant selection field has only influence over which collections or collection items should be shown or edited right now.

As of now the hidden function does not support that as its not possible to read the tenant selection from the cookie and request its unique name to hide an collection depending on it.

I would propose the possibility for the hidden function to be async and giving the full PayloadRequest object instead of only the user as parameters.