Redirect on Media and Attachment pages

I can see the plugin functionality is available in the sidebar when I edit a media file (image), or a media Attachment Page. However the redirect doesn’t save on either of those options. I’m not sure if this is a bug in the Redirect plugin, or if I shouldn’t expect it to work for Attachment Pages or Images. Why would one need this feature you ask? Well, let’s say you have embedded a gallery of 4 images that you want to serve as a sort of graphical menu. The options for linking on the thumbnail images in the gallery are 1)None 2)Media File 3)Attachment Page. By editing either the media image or image attachment page, one could simply put a redirect on those to a different page or url, in essence making the thumbnails link to the pages you desire. I’ve seen plugins that auto-redirect attachment pages back to the post, but that has a different goal.