ure_attachments_show_full_list

This filter is related to the Media Library restricted by content edit restrictions additional module.
User with applied content edit restrictions sees by default just Media Library items which were created by him or by users from the authors list. If ure_attachments_show_full_list filter returns TRUE, user will see full list of the Media Library items.

add_filter('ure_attachments_show_full_list', 'show_full_list_of_attachments', 10, 1);
function show_full_list_of_attachments($show_all) {

   return true;
}

In case you wish to show full list of Media Library items (attachments) just for selected role with content edit restrictions add checking of the current user permissions:

add_filter('ure_attachments_show_full_list', 'show_full_list_of_attachments', 10, 1);
function show_full_list_of_attachments($show_all) {
   if (!current_user_can('super_author')) {
     return $show_all;
   }

   return true;
}