Adding a widget area below header in Agency Pro. http://sridharkatakam.com/adding-widget-area-header-agency-pro/

functions.php

<?php
//* Do NOT include the opening php tag

//* Add support for structural wraps
add_theme_support( 'genesis-structural-wraps', array(
  'header',
	'site-tagline',
	'nav',
	'subnav',
	'home-featured',
	'site-inner',
	'footer-widgets',
	'footer'
) );

//* Register Home Featured widget area
genesis_register_sidebar( array(
    'id' => 'home-featured',
    'name' => __( 'Home Featured', 'agency' ),
    'description' => __( 'This is the home featured section.', 'agency' ),
) );

/** Add the home featured section */
add_action( 'genesis_after_header', 'sk_home_featured' );
function sk_home_featured() {

	if ( is_active_sidebar( 'home-featured' ) && ( is_home() || is_front_page() ) ) {
		printf( '<div %s>', genesis_attr( 'home-featured' ) );
			genesis_structural_wrap( 'home-featured' );
				genesis_widget_area( 'home-featured', array(
					'before' => '<div class="widget-area">',
					'after' => '</div>'
					) );
			genesis_structural_wrap( 'home-featured', 'close' );
		echo '</div>';
	}

}

style.css

/* Adding a widget area below header in Agency Pro
--------------------------------------------------- */

.home-featured {
  margin-top: 2rem;
}

.home-featured .widget-area {
	padding: 2rem;
	/*background: rgba(0, 0, 0, 0.5);*/ /*dark*/
	background: rgba(255, 255, 255, 0.5); /*light*/
	/*color: #fff;*/ /*dark*/
	color: #000; /*light*/
	margin-top: 2rem;
	font-family: 'Spinnaker', sans-serif;
	font-size: 1.5rem;
}

.home-featured .widget-title {
	color: #fff;
	text-align: center;
	font-size: 2rem;
}

.home-featured + .home-top .wrap {
	padding: 5% 0;
}