Advanced Custom Fields setup
<?php
$hero = get_field('hero');
$hero = (object) $hero;
// Putting custom fields to use
<?php if(!empty($hero->title)): ?>
<h1><?php echo $hero->title; ?></h1>
<?php endif; ?>
<?php if(!empty($hero->copy)): ?>
<p><?php echo $hero->copy; ?></p>
<?php endif; ?>
?>