Earl Miles aka merlinofchaos, has a knack for introducing new UI elements to Drupal. See View UI , Panels UI, Modal forms ...etc. With the new revamped Views 3 interface comes a new element, the dropbutton.

The dropbutton provides a javascript based dropbutton menu. It shows up as a button with a clickable twisty pointer to the right. When clicked the button will expand, showing the list of links. This allows you to focus on the main tasks, like edit, while less-used action are within a single click. It's a neat thing that you can use on your custom modules too.

Here's how.