Permission "Mount" to restrict users to specific entries in collections

[flolanger]

Currently, it is not possible to restrict a CP user to specific entries of collections. For example, if you have a "pages" collection with many entries, all users with access to that collection will be able to view and edit all entries.

That's fine for small sites, but if you have a larger site with multiple editors, administrators may want to restrict users to specific areas. In other CMS, this can be done with user "mounts". You can simply select one or more entries that the user has access to, and even allow subentries. For example, if an editor is only responsible for updating the "about us" page with the "team" child page, an administrator can simply allow the user to view and edit "about us" and its child entries.

Other entries are completely hidden from the user, which also improves the UX when there are many pages/entries.

Let me know what you think. I would also love to hear about other solutions from people who had the same issue.