Right now, this widget will only show up to 2 pages, as confirmed by Elfsight customer support.
Folks, our former Wishlist portal, where our users shared their requests and suggestions, was transferred to this forum. You’re most welcome to vote, add new ideas, and leave your comments here — we surely will consider them all! 
Original Votes: 1
Hello,
Thanks for adding your idea!
We’ll try to look into this issue and see what options we have to display all the pages in the initial load.
Thank you for your help! 