Heartfelt: Creating the Header menus
The Heartfelt theme supports two header menu called "Header Top Menu" and "Header Bottom Menu".
You can create and manage these menus by navigating to Appearance > Menus.
The steps to create a menu for your site are the same as you would any WordPress menu. The WordPress Menu User Guide will describe how to create a menu, add menu items, create multi-level menu items, and more. Simply add menu items from the Pages on the left column and drag/drop them into the order you want them to be in.
Once your menu is created, assign it to the menu location you'd like it to be displayed: