The ability to be able to assign an existing comment/attachment from the mother task to a sub-task, or change it’s assignment to a different sub-task.
In Asana it is too easy to add comments/attachments to the mother task and forget to put them in subtasks. This mess is hard to sort out - or impossible - without the ability to reassign existing content. Drag and drop would be elegant. Reassign to different task/subtask in the dropdown would be fine 
Can I easily move attachments from one task to another without having to open the attachment, save it to my computer, and then re-attach it to another task?
Hi @Nat - That is one way of doing it, and yes you’ll need to reattach for each task. However, rather than reattaching the attachments themselves, I’d refer to the Files section of your project and/or I’d just add to the new task description something like, "Refer to [hyperlink to task] for related attachment.]
Yeah, I need to move files to a different task as well. I’m using a task to hold all the documents that must be zipped together for a client deliverable and currently the files are in a couple different places. I guess I’ll have to download/re-upload.
I really need this capability as well. It is time consuming to save an attachment back to my desktop and then reattach to another task (especially if multiple tasks in a project refer to the same file!). In addition doing this, uploads another copy of the same file which then causes confusion when editing and viewing files associated with a project. I would think ASANA would want to create the ability to attach files to multiple tasks simply to save storage space on their services. How hard would it be to add another option to the attach file options that showed files in the current project?
Note: I don’t want to use links because it is inconsistent when looking for attachments in projects. Also, a link (in a note or description) blends in with all the other information Easy for people to overlook or not even know the attachment is there.
I’m with you on this Jeanine. It would be a really useful option to move a link. I’ve imported an email to ASANA which includes logos/info, but whilst I can copy and paste the data to another existing task, I can’t move over the logo. So frustrating.
Hello!
I realized today that I cannot “relocate” a photo from a sub-task to its parent task. I assigned someone to find a document and she took a screenshot and put it in the sub-task comments (which makes sense). I want it in the parent task. Currently, I can link the sub-task in the description or download it and re-attach it.
Is there a way to “move” the photo from the subtask to the parent task?
Indeed! @Rebecca_McGrath we should probably merge this with Moving Attachments between Tasks - #4 by holly2
Hi @RedHeadKev, thanks for taking the time to provide this feedback! 
I’ve gone ahead and merged your post with Moving Attachments between Tasks - #4 by holly2 as suggested by @Bastien_Siebman to keep all feedback consolidated!
I’ll let you know if we have any updates to attachments here on this thread
Thank you. I looked for a good 10 minutes but didn’t see this one. I guess I was too focused on the “photos” rather than the general attachments.
I would love to be able to move or copy attachments from one task to another, or particularly from a sub-task to a parent task. Right now, I have to download the file then re-upload it to the parent task. For example, we have an editorial workflow that uses subtasks to manage it (yes, yes, I know there’s a vocal group against all subtasks, but we like them. It keeps the main project from getting overwhelming, and subtasks mean we don’t have to make a whole new project for every single article. Anyway…) One step in the workflow is imagery. I would love to be able to simply click the dropdown arrow on an attachment and select “copy to (search for task like you can for dependencies)”. Same with articles – the writer has a subtask to keep things clean, and the collaborators are only the people who need to review it. Once they upload their final, I’d love to be able to simply move it to the parent task as the final version.
@Rebecca_McGrath there is (a least one) existing thread that could be merged with this one I believe Assign existing attachment/comment to task/sub-task
Thanks for taking the time to provide this feedback, @Wendy_Allen!
As @Bastien_Siebman mentioned, there is an existing thread for this request in the #productfeedback category so I’ve gone ahead and merged your request with this one to consolidate feedback.
I’ll keep you posted in the main thread if I have any updates
Surprised there aren’t more votes/requests for this, but this feature would be very helpful.
3+ years later and we’re still wishing for this functionality! This is a big hurdle to the way we’d like to use Asana. The downloads and uploads to move things to subtasks or the main task is a pain and referencing links to a different task doesn’t just take you to the image, it brings up all the images on the linked task. We thought we had a work around where you could copy an image in one location and paste to another but for some reason if you copy a JPG it pastes as a PNG and can only be pasted in a comment. Any suggestions welcomed!!
Give he ability to attach already existing files to a task in order to avoid duplicating in the file tab.
Add this option in the paperclip drop-down list .
Being able to do this would be so helpful. It would be even better if you could create a rule for it! Then everything could be automated.
This would be such a time saver! Even a right click short cut, or a drag & drop, drop down arrow to copy… anything to simplify without having to download and reload something you’ve already uploaded. Please Asana - having this feature would be amazing!!
Hi,
I have an existing file in my project - a png in “files”. Someone uploaded it in a task.
I now want to link to this file in another task. How do I do that?
Let me guess… third party vendor workaround?
Thank you.
