Do you want to design more than one page in your pdf? For example a cover page in the first page and the actual content in the second? or showing the term of use in the last page?
If so, all you need to do is go to ‘Template Settings’ and turn on the multi page designer like this:
After turning this feature on you will see a new navigation bar at the top of the pdf builder:
And that’s it! With that navigation bar you can add and remove new pages to your pdf: