Register New Genesis Sidebar

register-genesis-sidebar.php

<?php
//* Don't include opening php tag, this will go in your functions.php

//* Register a new sidebar
genesis_register_sidebar( array(
  'id'          => 'custom-post-sidebar',
  'name'        => __( 'Custom Post - Sidebar', 'my-theme' ),
  'description' => __( 'Widget area on all single custom post pages.', 'my-theme' ),
) );