// Tweak meta settings
function myprefix_metabox_settings( $array ) {
	$array['media']['settings']['show_media'] = array(
		'title' => esc_html__( 'Show Media', 'total' ),
		'id' => 'wpex_display_featured_media',
		'type' => 'select',
		'options' => array(
			'' => esc_html__( 'Disable', 'total' ),
			'on' => esc_html__( 'Enable', 'total' ),
		),
		'description' => esc_html__( 'Check the box to display the post featured media.', 'total' ),
	);
    return $array;
}
add_filter( 'wpex_metabox_array', 'myprefix_metabox_settings' );

// Show/hide media block based on admin setting
function myprefix_blog_post_layout_blocks( $blocks ) {

	// Remove media block by default
	if ( ! is_admin() && is_singular() ) {
		$blocks = array_combine( $blocks, $blocks );
		if ( 'on' != get_post_meta( get_the_ID(), 'wpex_display_featured_media', true ) ) {
			unset( $blocks['featured_media'] );
		}
	}

	// Return blocks
	return $blocks;

}
add_filter( 'wpex_blog_single_layout_blocks', 'myprefix_blog_post_layout_blocks' );