Use the Template widget to insert a custom template into your page.
Enter 1 or more characters to choose the Template from the list, and select a template that you’ve previously saved in Templates.
After publishing the page, an Edit Template button will become available in the widget options. If you need to edit the template, click the Edit Template button to quickly navigate to the template within the Template Library.
Editing and updating the template in the Template Library will cause all uses of that template widget across the site to update as well.