derekheld

Personal Library allows you to restrict users to seeing their own media uploads. The plugin works by filtering all requests for attachments.
<ul>
<li>Administrators will always see all attachments</li>
<li>Enable or disable access to all uploads for the following roles: contributor, author, editor.</li>
</ul>

Personal Library

Restricts users to managing/using their own attachments only.

KLicheR

Create a unique ID to easily identify repeater field’s rows. The field is fulfill on the first “save” of the post.
Compatibility
This ACF field type is compatible with:
<ul>
<li>ACF 5</li>
</ul>

Advanced Custom Fields: Unique ID Field

Create a unique ID to easily identify repeater field's rows.

Personal Library vs Advanced Custom Fields: Unique ID Field