There are two new reports in version 3.1. The first one is the Chart Writer. This is the same chart that you can edit on the Scorecards Overview tab and add to dashboards.
Once you choose “chart writer” for your report type, you can add one or more series to your chart and determine what kind of chart it will be.
When you’re done, you have a chart in the reports section that can be saved and shared with other users.