I meant "regular" hyperlinks within a book. Eg, if you download my "Haggard Anthology Vol 1":
https://www.mobileread.com/forums/showthread.php?t=54886
and look at the "Introduction" to the first book in the volume, "King Solomon's Mines", on the first or second page you should see a hyperlink to an endnote, labelled "[1]". Does this work on the V5?