I'm attempting to use the Hexagon block that I found on Github here: https://github.com/jasonlotito/hexagon.
I add a custom folder (called "Hex") in my Collections folder which is in the same root directory as the Asset Forge app. Then, I add the .obj and .mtl file there. But, nothing appears in AssetForge when I restart. I don't see a new collection, nor do I see a new block to use.
I'm on MacOS 10.14.6. Not sure if that has anything to do with this.