create symbolic link option on file attach

Issue Summary

I don't know if it's possible or if it applies to this module or the drupal core.

My personal case:
I have a content type Catalogue (articles catalogue) with an image field, containing one image for each catalogue's page.
I have a content type Article with an image field, where I attach (via fila attach) the image from the Catalog where the articles appears. I apply a crop to the image (via a image style + epsacrop) to show only the article image from the page.

Page-image is copied from Catalogue to Article. So I'll end up with as page-image as articles on the page.

It yould be great to be abble to choose to make a symbolic link copy of an image (via file attach) so no real copies are created. Allowing to apply different image style instance (epsacrop crop region for each article in page) to each symbolic link image.

Referencing image method makes image style global (each article referencing the same page, has the same crop region :-( )

Arnau