How to register new nav menu

I’ve copied the directory structure and the class-highend-theme-setup.php into the child theme and have added a new entry into the array but the location doesn’t appear in the list of Display locations in the Edit Menus tab. What am I missing?

highendwp-child/includes/core/class-highend-theme-setup.php

// Register Navigations.
register_nav_menus(
	array(
		'main-menu'     => esc_html__( 'Main Menu', 'hbthemes' ),
		'footer-menu'   => esc_html__( 'Footer Menu', 'hbthemes' ),
		'mobile-menu'   => esc_html__( 'Mobile Menu', 'hbthemes' ),
		'one-page-menu' => esc_html__( 'One Page Menu', 'hbthemes' ),
		'social-menu' 	=> esc_html__( 'Social Menu', 'hbthemes' ),
	)
);