The toolbar contains buttons that you can use to cycle forward and backward in the list of visited help pages. The Back button has an arrow icon that points to the left and the button changes the active help page to the last visited help page. The Forward button has an arrow icon that points to the right and it switches the help page to the page that was active before the Back button was clicked. If have not visited any help pages, both of these buttons are disabled. The toolbar also contains a Home button which has a house icon. The Home button displays the VisIt home page, which describes VisIt's features.