With the various panes on the left and right of the Dashboard Designer interface you can quickly run out of room to work, particularly when designing a dashboard as seen in the screenshot below.
Naturally we can minimise the appropriate parts of the designer interface by clicking the double chevron button at the top right of each pane. It is worth noting that Dashboard Designer's ribbon can also be minimised by double-clicking on any of the three ribbon tabs (Home, Edit or Create). To unhide simply double-click on any of the tabs again. This is the same functionality that is native to the ribbon implementations in Word, Excel and PowerPoint 2007.
As you can see from the next screenshot we now have much more screen real estate to get the job done.
It is also worth noting that, once hidden, the ribbon can be made visible by clicking any of the tabs once. This will make it visible for one click of any ribbon button, thereafter the ribbon will automatically hide itself again. Double-clicking a tab locks it back into position permanently.