Unfortunately, it doesn’t.
The client has several Custom User Roles defined, but the important one for his plugin is “Secure” which is just a Subscriber with a special capability that should allow them to download the secure files protected by Download Manager.
Every place in the WordPress back-end that displays User Roles will display “Aministrator”, “Editor”, “Contributor”, “Author”, “Subscriber”, and “Secure”. However, in the File Browser Access dropdown, it only displays the standard WordPress roles. It does not display “Secure”.
Is there a way to get Download Manager to accept “Secure”?