I'd like to highlight the importance of fixing #35. It is remarkable how many users are thoroughly confused by the distinction between attachment label (= translator) and attachment filename.

To reiterate, it is confusing because (1) attachments are visually presented as files (with icons) and so what looks like their name should be their actual name; (2) anything dragged and dropped already behaves in the suggested way, it's just attachments added by the translator that get this confusing special treatment; (3) there is already a field for translator in the right pane so it is redundant information whereas the file name, arguably more important, is not displayed anywhere.