Wordpress: acf option page customization

acf-option-page.php

<?php 
  /**
  * ======== acf option page customization ======== 
  * @param  [type] $settings 
  * @return [type]           
  */
  function my_acf_options_page_settings( $settings )
  {
    $settings['title'] = 'Page Title';
    $settings['menu'] = 'Menu Title';
    
    return $settings;
  }
  
  add_filter('acf/options_page/settings', 'my_acf_options_page_settings');
  
  /**
  * ============= Create a simple sub options pages =========
  */
  
  if( function_exists('acf_add_options_sub_page') )
  {
    //simple way
    acf_add_options_sub_page( 'Sub Page One' );
    acf_add_options_sub_page( 'Sub Page Two' );
    
    // advanced
     acf_add_options_sub_page(array(
        'title' => 'Page Title',
        'parent' => 'options-general.php',
        'capability' => 'manage_options'
    ));
  }
?>