Is there a PeopleSoft delivered way to add a step to a Fluid Activity Guide that displays a PeopleSo

Creating a new Onboarding Fluid Activity Guide and I was hoping to be able to add some of our existing Forms as steps in the AG.  I was hoping that Forms would be a Service Type option and I could input the form ID into the Service ID field.   Those options don;t appear to be available.  So how do other customers add steps to Activity Guides that present a PS Form to the user?