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I am running Build 93 of COW Express. I discovered that changes made to an opening are saved automatically, which is how I messed up the London System.4MD, having experimented with it using the installed engine, and then exited without -- I thought -- saving it. How can I retrieve the original Londo...

1) Open the Ebook you wish to delete.
2) Open the File Menu.
3) Select and click Delete Ebook...

What could be simpler or more obvious? Don't know how I ever missed it!

Is there a good way to delete an eBook after you decide you want to get it off the list of eBooks? In other words, is there a built-in Delete function in Chess Openings Wizard Express for removing a particular eBook?