Can a custom capabilities do this?

Your plugin seeems ideal for our conventional needs, but we have a very special one that needs a custom solution.

Specifically, we need know if a custom WP capability can be written whereby a user can be granted permissions such as:
1) Edit another user’s resources (posts, pages, etc).
2) Edit any resource in a designated collection.

For example, a capability name (generated programmatically) might be:
1) user_can_edit_resourceX
2) user_can_edit_userID_collectionX (anything in it)

I am not a programmer (just a lowly UI designer). But if we can at least theoretically do this (or something that achieves the same thing), I will alert the engineer to review and engage here, ASAP).

Thank you