Starting sessions with dlc tracks?

[HucK iT (A)]

I was wondering how to start sessions with people playing on dlc tracks from Reflex Central or Mxmaniacs?

My name on steam is  huck_my_life  if people want to add me. I'm up for running custom nationals and supercross tracks.

Thanks

[mcm2boys]

I haven't actually done it, but i believe you need to start a private session, select the custom track, and then invite people into that session.