On24 session link - need to find where it lives for thank you emails

New to building out a webinar in Marketo - we use ON24 

I have a question about when we send thank you emails to attendees and no shows, we include the link to view the recorded session, I know this link should be the same as when it was the live session. But where do I get that link? Is in program tokens (or should it be a token) or do I just grab the link from an asset?

I don't know much of anything about how the two work together, and if we do anything different for our instance.  I am taking over this for someone who is not here any longer and have to pick up at the thank part and create the thank you emails, but not sure where to pick up from this part. 

Thank for any help!!