How to rebind an action called by plugin's class to a different tag?

Hey guys,

So one of my plugins defines the

add_action(‘woocommerce_before_add_to_cart_button’, array(&$this, ‘woocommerce_gravityform’), 10);

And I’d like to change the $tag element to a different one via theme functions.php file.

I found out that I can remove the action using:

global $woocommerce_gravityforms;
remove_action(‘woocommerce_before_add_to_cart_button’, array($woocommerce_gravityforms, ‘woocommerce_gravityform’ ), 10);

But how to add it again?

Regards !