Other than the menus, the toolbars, and the Ribbon, PowerPoint 2011’s interface contains a floating set of tabs called the Toolbox. The Toolbox has four tabs: Custom Animation, Scrapbook, Reference Tools, and Compatibility Report. Each of these tabs is filled with options that let you perform important tasks within PowerPoint.
Explore this quick walkthrough of the Toolbox in PowerPoint 2011 for Mac.

