In order to modify the 1.4.4 code (as of this entry's writing) to target the selector in the client's code, you need to complete the following.
For example, on this client's page, each level of registration or pass had the same class, "qual-submit-button" so in order to properly target this in the beta code, you would add the selector into the code where the "data-ingo-target" would be.
So instead of targeting InGo in the example code, you would change this from:
<script src="//cdn.ingo.me/widgets-loader/1.4.4/js/ingo.loader.widget.js" data-ingo-id="INSERT_YOUR_ACTIAVTOR_WIDGET_ID_HERE" data-ingo-button="Register Now!"></script>
<script src="//cdn.ingo.me/widgets-loader/1.4.4/js/ingo.loader.widget.js" data-ingo-id="INSERT_YOUR_ACTIVATOR_WIDGET_ID_HERE" data-ingo-target=".qual-submit-button[href^=http]"></script>
And you're done!
Thanks for taking the time to read this article.