How to set a story to autoplay Click on the Play button below to see how the story autoplays! To set your story to autoplay: 1 In the Story editor, enable the Autoplay function. 2 This will automatically set a duration of 5 seconds for each slide. To change this, click on a particular slide and set the desired duration in the top-right hand corner. 3 Each slide can have a different duration. You can double-check how long a slide will play by looking at the number displayed in the bottom right-hand corner of the Story preview. 4 Once you are happy with your Story's duration, you can export and publish it. The Story will now have a Play button in the navigation bar and in the middle of the first slide. You can also upload audio files to your Story. Learn how to do this here.