If you’re unfamiliar with its hooks, Genesis can be a bit tricky to edit. Recently, we had to add a secondary menu to theme, and this is how we did it. We needed to add a second menu underneath the primary menu which was in the header. Here’s the code for it.

First register the menu:

// add second menu
if ( ! function_exists( 'xyz_register_other_navigation_menus' ) ) {

// Register Navigation Menus
function xyz_register_other_navigation_menus() {

	$locations = array(
		'secondary-nav' => __( 'Second Nav Menu', 'Not Any' ),
	);
	register_nav_menus( $locations );

}

// Hook into the 'init' action
add_action( 'init', 'xyz_register_other_navigation_menus' );

}

Next, create the secondary menu and output it in the desired place using the genesis_after_header hook.

add_action( 'genesis_after_header', 'xyz_genesis_secondary_nav', 20 );
function xyz_genesis_secondary_nav() {
	
	$args = array(
	'menu' => 'Second Menu',
	'menu_class' => 'menu genesis-nav-menu menu-secondary responsive-menu',
	'container_class' => 'wrap'
	);

	echo '<nav class="nav-secondary">';
	wp_nav_menu( $args );
	echo '</nav>';

}

If your menu doesn’t show up quite where you want it, experiment changing the integer (20 above) to a higher or lower number depending on if you want it after or before where it outputs.