[Halk]

There's an option to remove books, which seems to remove all formats of a particular book.

Is there a way to select which formats are removed? For example if I stick a .txt into Calibre then I'd like to remove that later once I have a .mobi created. Since Calibre ate my data I'm a little cautious about having it write to my device, so I prefer to have it save all the books and then I copy them across manually. It's a pain to delete all the superflous formats each time.