Hello, we're needing to create a 2,000 page document wherein every two sets of pages have the same page number (IE: pages 1 & 2 will be 00001 and 00001, pages 3 & 4 will be 00002 and 00002, etc). Is there an easy way to do this?
No, at least not using the automatic page numbering.
However, there appears to be several ways to do this using alternatives. Check out this article for more: https://indesignsecrets.com/create-spread-numbers.php
Of interest in that article is a script mentioned further in the comments section. Perhaps look at that script and see if that is appropriate for your purposes (make sure to read the instructions in the script first) GitHub - andrewheiss/Side-by-side-page-numbers-in-InDesign: Script to automatically create page numbers for side-by-side…