Thank you deathbydisco and harishanker !
I simply copied the grouped.php file from woocommerce (plugins/woocommerce/templates/single-product/add-to-cart) to my Avada theme (themes/Avada/woocommerce/single-product/add-to-cart/)
Then I edited themes/Avada/woocommerce/single-product/add-to-cart/grouped.php by adding the following code to line 66 <?php echo apply_filters( ‘woocommerce_short_description’, $post->post_excerpt ) ?>
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Additional notes:
The best part is, with Avada, the short description area supports shortcodes such as tooltips, modals, etc
This is for WooCommerce Version 2.6.4
Here is a screenshot showing unformatted text https://i.imgur.com/gYq1jQE.png (notice it bumps the text up a bit and makes the +/- quantity button appear off-center due to product title taking up almost the maximum amount of space before touching the pricing).
Below is a screenshot showing an Avada tooltip in the short description area that does NOT bump text up and keeps the +/- quantity button in the default location. An additional bonus for me is that now the short description appears within the actual product description. https://i.imgur.com/7xiMYDu.png
Take notice that if I were to try to add the tooltip in the short description for the Priority service product that there is no room and it would bump the text up and make the +/- quantity button appear off-center.
And yes, for anyone wondering, I am using the “WooCommerce Dynamic Pricing & Discounts” found here https://codecanyon.net/item/woocommerce-dynamic-pricing-discounts/7119279
Thank you again deathbydisco and harishanker !