The Dashboard allows you to cycle between 3 states:
 Full: the Dashboard Header is above the grid and one of the tabs is open
Collapsed: the Dashboard Header is above the grid but none of the tabs are open 
 Floating: the Dashboard appears as a small control which you can drag where you want. 
But you can, additionally, hide the Dashboard altogether by setting the 'Dashboard' to be 'Hidden'in Entitlements; this is what we have done in this example