Pin button or Context Menu Option on the Unity Launcher to Set Autohide Quickly

A button (or, less desirably, a context menu option) to quickly set the autohide function of the Unity Launcher would allow one to easily change between saving screen real-estate or program switching time. This is especially useful for programmers or others who sometimes need to compare two documents but usually like to switch between many programs quickly (without having to wait on the autohide unhide sequence).