[xwiki-users] Attachments & comments

Hi all, I was wondering if there is a way to add an attachment directly from a comment... I looked into the commentsinline.vm and attachmentsinline.vm, but I don't really find a way to modify those files to have something similar to what I need. Basically I want let users comment on a document and give them the possibility to attach a file in their comments... did anyone do something similar? Thanks! Vito