Create the 'Slides' custom post type and custom meta boxes

gistfile1.php

/**
 * Create the 'Slides' custom post type
 * @since 1.0
 *
 */	

	add_action( 'init', 'bhww_register_slides_cpt' );

	function bhww_register_slides_cpt() {
		
		// Set up the arguments for the Slides custom post type
		$slide_args = array(
			'labels' => array(
				'name' => 'Slides',
				'singular_name' => 'Slide',
				'add_new' => 'Add New Slide',
				'add_new_item' => 'Add New Slide',
				'edit_item' => 'Edit Slide',
				'new_item' => 'New Slide',
				'view_item' => 'View Slide',
				'search_items' => 'Search Slides',
				'not_found' =>  'No Slides found',
				'not_found_in_trash' => 'No Slides found in Trash'
			),
			'public' => true, // Make it publicly accessible
			'hierarchical' => true,
			'menu_position' => 5, // Appear just below 'Posts'
			'supports' => array( 'title','editor','thumbnail' ),
			'capability_type' => 'page',
			'rewrite' => array(
					'slug' => 'slide' // Use 'slide' instead of 'bhww_slide' in permalinks. Refresh permalinks after changing this slug.
			)
		);

		// Register the Slides custom post type
		register_post_type( 'bhww_slide', $slide_args );
		
	} // End bhww_register_slides_cpt
	
	
/**
 * Create Custom Meta Boxes for each CPT 
 * @since 1.0
 *
 * Using the Custom Metaboxes library from 
 * Andrew Norcross, Jared Atchinson, and Bill Erickson
 *
 * @link https://github.com/jaredatch/Custom-Metaboxes-and-Fields-for-WordPress
 *
 */		

	add_filter( 'cmb_meta_boxes', 'bhww_cpt_metaboxes' );

	function bhww_cpt_metaboxes( $meta_boxes ) {
	
		//global $prefix;
		$prefix = '_bhww_'; // Prefix for all fields
		
		// Add Instructions and Link metaboxes to the 'Slides' CPT
		$meta_boxes[] = array(
			'id' => 'bhww_slides_metabox',
			'title' => 'Slide Information',
			'pages' => array( 'bhww_slide' ), // Which post type to associate with?
			'context' => 'normal',
			'priority' => 'high',
			'show_names' => true, // Show field names on the left
			'fields' => array(
				array(
					'name' => 'How to add a new slide to the slideshow',
					'desc' => '1. Add a title at the top of this page where it says, "Enter title here." This title will appear in the text overlay of the slide.<br />
						2. Enter some content (text) in the text editor. This will appear under the title in the text overlay of the slide.<br />
						3. Upload or select an image for this slide using the "Featured Image" link. <strong>Recommended image size is 1140 x 445 pixels.</strong><br />
						4. Enter a link in the text box below if you\'d like the slide to link to another post, page, website, etc.',
					'id'   => $prefix . 'slide_instructions',
					'type' => 'title',
				),
				array(
					'name' => 'Slide Link',
					'desc' => 'Enter the URL of a post, page, other website, etc. that this slide should link to.<br />For example: http://mywebsite.com/about-us',
					'id'   => $prefix . 'slide_link',
					'type' => 'text',
				)
			),
		); // End 'Slides' CPT metaboxes

		return $meta_boxes;
		
	} // End bhww_cpt_metaboxes
	

	// Initialize the metabox class
	add_action( 'init', 'bhww_cpt_initialize_cmb_meta_boxes', 9999 );

	function bhww_cpt_initialize_cmb_meta_boxes() {
	
		if ( !class_exists( 'cmb_Meta_Box' ) ) {
		
			require_once( BHWW_CORE_DIR . '/lib/metabox/init.php' );
			
		}
		
	}// End bhww_cpt_initialize_cmb_meta_boxes

Changed hierarchical to "true" to enable Slide ordering with the Simple Page Ordering plugin