Event Sidebar register function
// Register Sidebar
function register_event_sidebar() {
$args = array(
'id' => 'sidebar-4',
'name' => __( 'Event Sidebar', 'text_domain' ),
'description' => __( 'Appears on event pages, contains event and speaker inforamation', 'text_domain' ),
'before_title' => '<h1 class="widget-title">',
'after_title' => '</h1>',
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
'after_widget' => '</aside>',
);
register_sidebar( $args );
}
// Hook into the 'widgets_init' action
add_action( 'widgets_init', 'register_event_sidebar' );