wp-One-Page-Scrolling-Nav

//In ul write the code of bellow

                <ul class="nav navbar-nav">

                    <?php
                         global $post;
                         $args = array(
                              'post_type' => 'page',
                              'orderby' => 'menu_order',
                              'posts_per_page' => -1,
                              'order' => 'ASC'
                         );
                         $myposts = get_posts( $args );
                         foreach ( $myposts as $post ) : setup_postdata( $post ); ?>

                         <li><a class="page-scroll" href="#<?php echo $post->post_name; ?>"><?php the_title(); ?></a></li>

                         <?php endforeach; ?>
                </ul>
// Note that; Create the page including order like Home, order 1, About order 2, Services order 3 etc.
// No need the register function for menu dynamic in this case.