Hi,
Displaying the total page number on each page is not possible at the moment, because of the streaming: The report is generated page by page to gain in performance, so the total number of pages is only known once the last report page has been generated.
However, this feature has already been requested and is filed as #11312 (Print the number of pages on each page) in our database. We plan to implement it in a further version, but I cannot promise for any precise date at the moment.
Thanks for comprehension.
Best regards,
Romain W.