Document the "grant content access" and "grant own content access" permissions

I guess that "grant content access" is the permission that allows the users to decide who can access a specific node, while the second is the permission that allows the users to decide who can see a node they created.

I agree that the custom permissions should be documented.

I am changing the category of this report; I see it more like a task, than a support request. Even if users could guess the meaning of the permissions, it would be better to document their use.

I think I figured out what these do. First you have to enable "Per content access control settings" on the access control tab when editing your content type. Then, if a user has the "grant content access" permission, they will see a content access tab when viewing content of that type and be able to edit access settings for that node. Similarly with the "grant own content access" permission on nodes authored by the user.

Maybe it would be less confusing if it was called "Per node access control settings" instead of "Per content access control settings".

Yes, it needs better naming to clarify that this controls ability to access access CONTROLs on either all types, or one's nodes. It also could be more fine-grained -- at least by cck type.

There's a similar issue on the per-node screens, where access is being granted to the specific nodes, not all nodes of the type, etc.