Thank you @LeonidS , Let me clarify what i am trying to achieve. I want to create the menu like it is in unacms website. with custom links to the pages created manually in the instance.

Currently i tried adding that custom links in the " Site Navigation " and tried adding the custom created pages to the menu items and added as sub-items but it is not displaying that as desired. Kindly suggest way forward.

Thanks for your guidance.