Can you provide a bit more detail or some screenshots? It's not clear what you are asking.
My understanding what you have done is 'locked' the story to the view the dashboard was in when you created the story. After this you have made changes to your dashboard and you now want this to be reflected in your story ?
Simply create a new story page and drag the new dashboard onto the new page - it will update and reflect the new view. Then you can delete the old one.