I am able to create a story burnup with 2 series, total created and total resolved by week. I don't really care about sprints, but rather I want to see total for my project over a time range. My chart is based on story created date, so even if the story was created in week 1, and story point was added in week 3, my chart will show the increase in week1. How do I get a burnup based on when the story points were added?