After you have successfully built a collection, the final tab on the main screen becomes enabled. This tab opens up the preview view so that you can inspect the collection. The pane itself is a simplified Web browser with initial page, and home page, set to the new collection's title page. The title page appears inside a scrollable pane. You can navigate the collection using standard hyperlink clicks. Some browser controls are also provided. The back button, far left, returns to the previous page, and become active as some as you click out of the initial screen. Next is the home button which returns you to the collection's title page. Third is the refresh button, which causes a new copy of the page to be loaded (rather than using an older version cached within the Librarian Interface), and is especially important for determining the effect of changing format statements. Format statements are live: as soon as you change them Greenstone will begin to format the HTML pages returned using the new specifications. The forward button, on the far right, is used to 'undo' a back button click.