Your website’s menu has several settings for the styling as well as the menu selection. The first thing is to create your menu, the menus comes along when the demo is imported. Menu creation can all managed from your WP Dashboard => Appearance => Menus

Here’s an official guide of the WordPress menu

Below image shows which menu is used where in the site header with different header styles.

Styling Primary Menu

All the styling options for the primary menu are available at your WP Dashboard => Native Church => Theme Options => Menu

Styling Top Menu

All the styling options for the top menu are available at your WP Dashboard => Native Church =>Theme Options => Menu => Top Menu

Top menu on Mobile

Since the primary menu works as Hamburger menu on small devices like Mobile phone but to make space for the top menu we have converted it to a select box menu which can be enabled from your WP Dashboard => Native Church =>Theme Options => Menu => Top Menu

Mobile Menu

Mobile menu consists of 2 parts, one is the primary menu displayed as Hamburger menu and the other is Select Box type for Top Menu. All the styling and other options can be found at your WP Dashboard => Native Church =>Theme Options => Menu => Mobile Menu