Also see video here

This can be found by going to Edit Design > Repeaters

This allows you to create headers, footers and any other elements that appear on each page of your proposal. If you place any text, images, shapes or lines on a page, it will appear on every page of your proposal.

You can use variables in text boxes within the page template, which is useful for dynamically outputting information on every page, such as the page number, client name, or proposal name.

If you want to output the page number in the footer of your proposal, just create a text box and type {page_number} (with the curly braces) and it will output the appropriate page number.

See more under Variables.