Since the dawn of Facebook’s Photos feature, users have been tasked with the not-so-terrible burden of having to manually click through every photo in an album. Sure, you can also hit the arrow key on your keyboard to jump to the next picture, but even that repetitive task could send you inching down the treacherous path toward carpal tunnel syndrome. Now, there’s a way to view hundreds of photos without lifting a finger: a new Facebook Prototype lets you turn these photo albums into slideshows.