Is there a way to see "real" book numbers as well?

I'm using KOReader on my Libra 2. I absolutely love being able to customize both the top and bottom bars to show the information I want. I'm wondering if there is a way to track the "real" pages left in the book? I know it will track number of page flips, which is nice, but I'd also like to see how many pages are left so that I can track total number of pages read, not just number of pages flipped.

I hope that makes sense.