Listed Related Attachments will display a filtered list of all related attachments for the current post or page.
List Related Attachments is a sidebar widget and shortcode that will display a filtered, sorted and ordered list of all related attachments linked to current post or page. The widget options are: title, number of attachments to display, type of attachment to display by mime/type, order by value, order direction and what should be displayed (attachment title, caption or description). A complete listing of shortcode options and attribute demos are available that delight and inform. What's more, there is excellent and free community as well as premium support available.