Be able to mention files in a task

It would be great to be able to ‘@’ a file when creating a task. I usually have a task set up for a designer to create a design for a homepage, but then have a seperate task for the developer to execute the designs once signed off. I can just ‘@’ the task that a design file was uploaded to but it would be awesome if i could just directly ‘@’ the file.

Asana used to change Attachment URL that you paste in comment into Attachmant title, just like task URLs convert into Task titles, but that functionality was turned off (probably due to performance reasons).

However if ugly URL is ok, paste it, at least the goal of ability to access the content will be achieved.