I want to make a dynamic single page for webinars that loads the correct webinar from the database based on the query string (e.g. /webinars?id=1234).

My question is: Has anyone thought of a way to tap into and use the c5 Permissions package on a dynamic page? I need to restrict access to a particular webinar based on who has signed up and paid for it. But it obviously wouldn't be a matter of managing access to a page or a block… it would somehow need to check a list of allowed users against the webinar ID.

Any ideas would be great.