Comment & upload file at same time (in same comment)

I’m new to Asana, and I may be missing something, but it appears that I have to do them in separate steps. I can’t see a way to comment and attach a file at the same time. In other words, I comment, then I have to attach a file (consequently triggering two notifications, one for the comment, one for uploading the file). Can’t these go together? What am I missing?

A post was merged into an existing topic: Let attachments be inside comments body (as part of a single item)