Currently there is no way to do so.
I don’t see any technical reason it couldn’t work in the future, it just isn’t built into the plugin currently. I’ll take a look over the coming weeks to determine what is required and possibly make a release soon.
I would love to see this functionality, too. I do lots with pages and need to collaborate often. So I would use the preview as much for pages as for posts. In fact, I think many users would feel the same way — for many sites, it is the pages that need the most collaboration between all stakeholders in the site.
Just my two cents. Thanks for a nice plugin.
