Part 1: Widgets Pane and Custom Widget Libraries covers enhancements to the Widgets pane (including Search) and creating and using custom widget libraries.

Part 2: New Interactions and the Advanced Interactions Editor provides an overview of the new actions (Set Focus on Widget, Bring Panel(s) to Front, Set Widget(s) to Selected State) and creating animation using the new Advanced Editor.

Part 3: Dynamic Panel Manager, Image & Button Shape Enhancements, and Diagram Editing shows the new Dynamic Panel manager, the Preserve Corners feature for images, editing MouseDown and Selected styles for images and button shapes, deep selection in groups, and the "Visio style" selection mode.

Bring Panel(s) to Front
This action brings a dynamic panel to the top layer of the page. This is useful for prototyping features like lightboxes, flyout menus, and custom tooltips created in dynamic panels.

Set Widget(s) to Selected State
This action sets the style of a widget to its Selected style or back to its default style (see Part 3 for more on the Selected style). This is useful for navigation like menus when a particular menu item should be highlighted (or selected) on a page. For example, on the OnPageLoad of a page, you can set the appropriate menu item to its Selected state.

Advanced Interactions Editor (Animation)

The Case Properties dialog now has an option to use an Advanced Editor.

The Basic Editor allows each action to be added once to a case and automatically orders the actions. Using the Advanced Editor, you can now customize the order of actions and add multiple of each action.

One use for the Advanced Editor is to create animations using dynamic panels. If you create a dynamic panel with multiple states, you can use the Advanced Editor to alternately set the state of the panel and wait some time. To do this, click the Add Action link, select "Set Panel State(s) to State(s)", then "Wait Time(ms)", and another Set Panel action, and so on.

Please note that the link to return to the Basic Editor is disabled once an action has been used more than once or are not in the default order.

Check out Parts 1 and 3 of this series: 

Part 1: Widgets Pane and Custom Widget Libraries covers enhancements to the Widgets pane (including Search) and creating and using custom widget libraries.

Part 3: Dynamic Panel Manager, Image & Button Shape Enhancements, and Diagram Editing shows the new Dynamic Panel manager, the Preserve Corners feature for images, editing MouseDown and Selected styles for images and button shapes, deep selection in groups, and the "Visio style" selection mode.