The extension has a default stack configuration, but can be changed to position the stacks differently.
The second story can be viewed by clicking the button labeled 2 under the editor. It adds a
stacks entry which is used to change the flow’s look. The current page is positioned up and to the left and rotated a little. The pages in the future stack are positioned increasingly behind the current page. The past stack is positioned off the canvas with no opacity, so the pages appear to fly away.
The third story uses a different custom configuration that moves the pages in a two dimensional snake pattern. It overrides the
pageAspectRatio to make each page short and wide.