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 IsHidden property in Dashboard Predefined Config (as done in this example).
Note: you can hide the Dashboard completely by setting the 'Dashboard' to be Hidden in Entitlements and then it can never be made visible again.