In the content-single-product.php of your child theme
I added this at the beginning
global $post, $product;
$product_short_description = sf_get_post_meta($post->ID, 'sf_product_short_description', true);
and also this block of code before the woocommerce_after_single_product_summary hook
<?php if ($product_short_description != "") { ?>
<div class="product-short">
<?php echo do_shortcode($product_short_description); ?>
</div>
<?php } else { ?>
<div class="product-short">
<?php echo do_shortcode(apply_filters( 'woocommerce_short_description', $post->post_content )); ?>
</div>
<?php } ?>
If you compare this file with the original one provided for the theme you will see a lot of modifications.
In our Woocommerce ovrerride files we have the hooks provided by Woocommerce, maybe it wasn’t enough for you ex-developer.
Don’t take us wrong but this is really outside of our support scope and we already went further than usual. try to get another experience developer in WordPress and Woocommerce.
-Rui
.