Imagine this situation: You have many modules to publish, but if you publish them all, your web site would become too busy. With this feature, you can have some modules published, but hidden into the top panel. When visitor needs some of these modules, he clicks the OPEN button and the top panel will slide down. Once he's done, he clicks theCLOSE button and the top panel will be hidden again.
The top panel contains four module positions. Those positions and floatable and have fluid width. In template parameters, you can change the panel's background color, as well as font color.