How many programmable keys for Sangoma S500

The PDF file https://www.sangoma.com/wp-content/uploads/2016/01/Sangoma_DataSheet_Phone-S500.pdf shows the S500 has 8 line keys with 4-pageview

My S500 has 5 pageviews. I would like to confirm if the S500 supposed to have 4 or 5 page views .before I start using the extra view page.

Thanks

That is a old link. It now does 5 pages instead of 4