To import a Fusion site file into another Fusion site file, you must be in Site view. Browse to the file you want to import, select it, and then click Open. In the Open dialog box, browse to and select the desired page. When you click Open, Fusion imports the page, and adds that page's assets to the web site's assets list. You can also import just one page from Site view.
Fusion creates the site structure for an imported site based on the web site's links.
Every page linked to your home page appears in the imported site structure as a child of the home page. Pages not already included in the site structure are imported as children of their respective parent pages, etc. The frame source pages are imported as children of their container frameset page. Fusion imports each framed page in this manner, creating the appearance of extra pages in your site structure. When you place an element into a Fusion page, Fusion translates the location of the element into a coordinate position on each page's layout grid.