<?php
function create_service_post_type()
{
    register_post_type('service',
        array(
            'labels' => array(
                'name' => __('Service Box'),
                'singular_name' => __('service')
            ),
            'public' => true,
            'has_archive' => true,
            //'show_in_menu' => 'edit.php?post_type=aboutus',
            'menu_icon' => 'dashicons-format-aside',
            'supports' => array(
                'title',
                //'editor',
                //'excerpt',
                //'thumbnail',
                //'author',
                //'trackbacks',
                //'custom-fields',
                //'comments',
                //'revisions',

                //'page-attributes', // (menu order, hierarchical must be true to show Parent option)
                //'post-formats',
            ),

        )
    );

}

add_action('init', 'create_service_post_type');