Sometimes I'll try to read a book, throw it on pause (love that feature) and come back a month later to clear out my paused book and some time after THAT decide.... I should finish that book.
I'd love a feature to resurect or, try again with a DNF book, where it starts tracker where you left off, rather than beginning the tracker at 0, and adding all the pages between to your read count.

The other issue I have with the current system is that it counts a DNF'd book as completed. If you go back and finish the book it counts THAT as completed as well, so you have 2 completions for the same book.

There could be an option when you finish the book for Why you DNF'd and Why you returned.