web/wp-content/plugins/acf-extended/includes/field-groups/field-group-instruction-placement.php

<?php

if(!defined('ABSPATH')){
    exit;
}

if(!class_exists('acfe_field_group_instruction_placement')):

class acfe_field_group_instruction_placement{
    
    /**
     * construct
     */
    function __construct(){
        
        add_action('acf/field_group/admin_head', array($this, 'admin_head'));
        
    }
    
    
    /**
     * admin_head
     */
    function admin_head(){
        add_filter('acf/prepare_field/name=instruction_placement',  array($this, 'prepare_instruction_placement'));
    }
    
    
    /**
     * prepare_instruction_placement
     *
     * @param $field
     *
     * @return mixed
     */
    function prepare_instruction_placement($field){
    
        $field['choices'] = array_merge($field['choices'], array(
            'above_field' => __('Above fields', 'acfe'),
            'tooltip'     => __('Tooltip', 'acfe')
        ));
    
        return $field;
        
    }
    
}

// initialize
new acfe_field_group_instruction_placement();

endif;