Nah it's nothing to do with smart
It's just a peer led support centre, so it's run by counsellors who've had addiction/mental health problems. You go when ever you want in the day, join in the groups you want to join in on, just go for a chat when you need to or just go use the facilities such as art room, library etc...it's totally down to you to take the responsibility of recovery and use what they have to offer i guess.
If you want to combine it with any other programs like AA or smart or whatever you can, they don't discourage anything, just want you to find what works for you.