You may create a header, which will be displayed at the very top of your dashboard. This header will be shared by all tabs on your dashboard.
To display a header in a dashboard, simply go to the sidebar, click on the third tab to expand the "Zones" window, and enable the display of the header:
Click on the header's text to edit it, or click on the (X) icon to delete the header area. The header's style (font, colour) may be modified. To do so, you must modify the theme used in your dashboard.