How to pass data into an OPA model from the URL

Content

Hello!

I am creating a help wizard for an online gateway.  The user will link to the OPA model from any of a number of different screens.  Since the link is being clicked within a known context, I would like to pass a value in to the OPA model so that it can "jump ahead" in the interview to the appropriate place based on where the user was in the site when the link was clicked.

Is there a way to do this?

For example, the user is logged into the large pickup request service and clicks "I need help" link.  The I need help link would pass "largepickup" into OPA so we can start with those questions instead of the more basic questions about are you having password problems or PIN problems, etc.