Each Dashboard widget sits on a grid that is three columns wide. A Widget can occupy one or two of these columns and they can be arranged however you like. Hovering over a widget reveals the editing tools in the top right-hand corner.
Widgets can be customised to show different data. Click Settings icon to enter edit mode, which allows you to change what is displayed.
The Resize icon indicates that a widget can be resized. The direction of the arrows changes to show if the widget will expand or shrink. This icon will not be shown when the size of a Widget is fixed.
To remove a widget click the Remove icon. The Widget can be added again at any time.
Moving a widget is done by clicking and dragging the Move icon on the right.
As you move a Widget, other widgets will rearrange around it and the position the widget will take when it is dropped will be highlighted.
More on widgets: