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I do not know of any sure-fire way to accomplish this.
In EPUB you can mark an item in the spine as non-linear, but the EPUB specification leaves it up to the reading software how to handle that. Treating everything as linear, even if marked non-linear, is mentioned specifically as being an allowed method of handling it in the specification.
Perhaps something could be done using JavaScript, but that would likely only work on a few specific reading applications.
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