A Walkthrough widget is similar to a tooltip in that it highlights a particular element. A Walkthrough can also contain one or more programmable buttons. These buttons can be used to allow a user to progress to the next step, return to the previous step, go directly to a particular step or visit a url.
Walkthroughs can also contain a progress bar. The progress bar provides the user with a visual indication of where they are in the demo. Bars within the progress bar can represent the entirety of the demo, or a smaller subsection.