Have you got a more explained help, my be, with examples? To say the truth, I can not understand anything, how it works. All the help, when anything fails, is a word "ERROR"...
For example, how must I fill the fields and choose the relations, if I want to find books, where title<>title_sort? Thank you in advance.
Edit: or, maybe, is there a way to do this in standard Calibre? This like searches were the case to install your plugin, but I can not use it.
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