Hi!

I propose adding feature to allow inline editing of attached text files.

Background:
Our application sends a bugreport with call stack, info about computer, os and customer. Some times these reports can contain sensitive information. More often, just excessive amount of irrelevant information.
To curate it, one must currently download the attachment, edit it in Notepad locally, save and upload back to Mantis again. Then remove the old attachment.
Report can not be put in "Additional Information" due to size limitation and unsuitable formatting (variable width font makes the report hard to read).