This feature is available in Enterprise and Ultimate editions.
Dashboard reports provide a summary of the history and current status of a given project or sprint all in a single view.
Viewing Dashboard Details
When you roll your mouse over any bar in a bar graph or point in a line graph, the system will display the details for that data item. To present a more efficient view in the information in dashboards, legends have been removed from the display. As you use the dashboards more, you will become more familiar with the contents and your use of the mouseovers will diminish.
From the graphs on the Dashboard pages, you also have the option of selecting View to jump directly to a full-scale version of the selected graph. This full-scale version displays the legend and the labels in the axes.
Also, units of measure (UOM) for display on the dashboards can be defined via localization.