Ability for users to choose whether or not they want to view double page spreads

If you're taking advantage of our double page spread feature for editions, your users will see both pages in a PDF, if on a large enough screen.

This is controlled within the CMS so the behaviour is the same for all users.

This would allow your users to control this themselves. An item in the settings page could allow users to select a reading style and set their content to single or double page according to their preference.