My manager has started paying attention to our Jira reports (we were previously just using it amongst our team members for collaboration and planning). He is looking for some data that is not currently available in the reporting section of our board. Specifically, he is looking for a graph that shows the total amount of work (measured in story points) in a backlog, and use the team velocity to estimate the time required to complete the work. Essentially it is like a burn-down chart for the entire backlog for a project, and not just for a sprint, epic, or version. Are there any tools available to do this?