On Windows there's an option in the ebook-viewer Preferences->Miscellaneous to allow multiple instances, if they are allowed then the books will opened en-masse and be put into what amounts to a LIFO stack. So as you close the book at the top of the stack then next comes into view.
I have no idea if it will work that way on a Mac. In fact I can't guarantee that one of the several Windows enhancement gadgets I run isn't enabling this.
BR
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