I just purchased JNPG today, and when I followed the instructions on how to add Course Forge, nothing was showing in Downloadable Content (i.e. DLC) section in Steam? So, a simple question would be where can I get this as I have Unity but need the Course Forge. It was the #1 reason why I wanted to purchase this game.
Note: I am a mac user running on the latest macOS (i.e. High Sierra v10.13.3)