Dashboards can be edited only in Design mode.
By clicking Change Title and Description a new window where the name and description of the current dashboard can be changed
Widgets of the selected dashboard can be edited, resized and moved when in the Design mode.
To edit a widget configuration click the Edit link on top of the item.
To resize a widget select the bottom right corner and drag to the desire size.
To Move a widget just drag and drop it to the new location.
After finishing with editing the widgets click the Save button.
If the changes doesn't appear after save try to Refresh Dashboard by clicking Refresh button.