This documentation will guide you on How to Add SiteMap for a Page
Goto Editor
When on SiteBuilder Dashboard. Hover on Pages option given on the left sidebar and then click on All Pages. Once on all Pages Click on Edit Icon of Any Page.
You will be redirected to Editor.
Select SiteMap Option
On SiteBuilder Editor hover on more menu on the navigation bar. When you hover on more menu three buttons will be drop down i.e Reset Page, SEO Options and Custom HTML.
Click on SEO Options.
On clicking SEO Options you will see a dialog box will appear. In the dialog box click on SiteMap to load SiteMap options.
Edit SiteMap Option
Once you are on SiteMap Detail Section select Enable SiteMap then you can choose any of the following option from Manage SiteMap Settings: Automaically / Manually
Once you have made your desired changes then click on Save to save SiteMap Settings for your page.
Note: For Blog Post SiteMap option will be managed automatically.