Sorry, it's difficult to explain that correctly...
Yes, I did that. And I created a menu with my 3 services.
Look my website
I would like create 4 menus in the top right of my website (CV + 3 services).
But I can't display my menu like you in your demo . I would like display that like you with Home - Blog - Portfolio - ...
Is that more clear for you ?
The only solution that I founded to resolve my problem is to put the service menu in the footer but the visibility of this menu it's not so good like that.