On a chart that displays reporting periods along an axis, click on the first reporting period label, hold down the left mouse button, and drag the mouse pointer to the last period you want to select.
When you do this, the reporting period controls at the top of the dashboard change to match the selection, and all charts and tables on the dashboard change to reflect the selected reporting periods.
Press the Ctrl key as you click the selected year, quarter, or period.
Press the Ctrl key as you click the selected year, quarter, or period. Repeat for each selection you want to clear.
You can also do either of the following, but both actions clear all selections on the dashboard, not just the reporting period selections:
Click on the dashboard toolbar.
Or
Right-click anywhere in the dashboard except on a list or a dashboard component, and click Clear on the pop-up menu.