To edit the Template, go to "Template"  and check the "Edit Template"  box.
Once you finish editing the template , click on "Close Template" , or click again the "Edit Template"  box. Both methods go back to first page of your site.
Any element that is inserted in "Template mode" will be visible throughout the entire site.
You can also add a "Favicon", a favicon is a special icon associated with your website, displayed in the browser's address bar.