Is it possible to enhance the viewing of "file attachments" on the view issue screen.

In particular, I would like to be able to see the author and datetimestamp on the view issue screen. I would also like the files to be sorted in date descending order as default.

In addition to this, it would be beneficial to have some versioning logic. I.e. If I upload a file called "123ABC.doc" then subsequently upload a file with the same name, I would like to be able to keep the original file and for JIRA to automatically modify the new filename to be "123ABC(01).doc" for instance.

Is this available via a plugin or would it require dev?