admin-settings.php

<?php


function plugin_add_settings_link($links)
{
    $settings_link = '<a href="options-general.php?page=acf-options-acf-vimeo-pro-data">' . __('Settings') . '</a>';
    array_push($links, $settings_link);
    return $links;
}

$initSettings = function () {
    if (!current_user_can('administrator') || !function_exists('acf_add_options_page') || !function_exists('acf_add_local_field_group')) {
        return;
    }
    add_filter("plugin_action_links_acf-vimeo-pro-data/acf-vimeo-pro-data.php", 'plugin_add_settings_link');
    
    // registers a settings pages under general options
    
    acf_add_options_sub_page(array(
        'page_title' 	=> 'Vimeo Pro Settings',
        'menu_title'	=> 'ACF Vimeo Pro Data',
        'parent_slug'	=> 'options-general.php',
    ));
    
    // creates a field, a group and adds it all
    // together to the options page
    
    acf_add_local_field_group(array(
      'key' => 'group_5c7edb3088f00',
    	'title' => 'ACF Vimeo Pro Data',
    	'fields' => array(
    		array(
    			'key' => 'field_5c7edb38313c0',
    			'label' => 'Vimeo Auth Token',
    			'name' => 'acf_vimeo_auth_token',
    			'type' => 'text',
    			'instructions' => 'Create a new app and generate a client access token to paste here.
    More instructions here: https://developer.vimeo.com/api/start',
    			'required' => 0,
    			'conditional_logic' => 0,
    			'wrapper' => array(
    				'width' => '',
    				'class' => '',
    				'id' => '',
    			),
    			'default_value' => '',
    			'placeholder' => '',
    			'prepend' => '',
    			'append' => '',
    			'maxlength' => '',
    		),
    	),
    	'location' => array(
    		array(
    			array(
    				'param' => 'options_page',
    				'operator' => '==',
    				'value' => 'acf-options-acf-vimeo-pro-data',
    			),
    		),
    	),
    	'menu_order' => 0,
    	'position' => 'normal',
    	'style' => 'seamless',
    	'label_placement' => 'top',
    	'instruction_placement' => 'label',
    	'hide_on_screen' => '',
    	'active' => true,
    	'description' => '',
    ));
};

add_action('acf/init', $initSettings);