A great feature that'd be relatively simple to implement would be to copy a torrent's magnet URI to clipboard.
This makes it much easier (or even possible, in this case) to copy URIs to emails, or start a torrent on another computer's webUI.

I third this; having an associated filetype for incomplete torrents would be immensely useful. Though I agree it'd have to be a plugin ; being part of the main program would make it a tad more complicated to open incomplete files while downloading. (Requiring right-click>open with...) (We all do it....

How can I identify if a torrent I am adding already exists? Basically I want to be able to add a torrent, but if it already exists, copy it from its current location to another location. When you say "copy it from its current location to another location," do you mean mark it as complete?...

cas is right; editing ID3 tags changes the files themselves (not the NTFS file stream). In order for such a feature to exist, the client would have to stop seeding and downloading entirely, lest there be hashfails. Use MP3Tag to do this instead; I've used it for years, and has worked wonders with my...