The new software update lets you hit a button to take you to a "notebook overview" type page, where you can see all the pages in the notebook laid out in a quas

The new software update lets you hit a button to take you to a "notebook overview" type page, where you can see all the pages in the notebook laid out in a quasi-grid. You can then tap whichever page you want to navigate to. Of course there's always complications with determining which page to use, having to scroll if your notebook has 1000 pages, etc, etc, but I think it might hit the 90% case you're looking for with trying to quickly switch between non-contiguous pages without having to scroll through the whole notebook.