Advanced Workflows

I recently stumbled across an Adobe blog post on using advanced workflows.  They had a video that showed incorporating Web forms to gather information then uploading that information to a form.  I can't seem to find any information on advanced workflows, just general guides on workflows that I already use. Can anyone point me in the right direction on setting up web forms to gather information.

Blog post for reference:

https://blogs.adobe.com/documentcloud/enhance-the-e-signature-experience-with-advanced-workflows/

Thanks!

Edit - It appears that this can be added as an additional cost to Enterprise plans.