I read the other post about this happening and there is supposed to be some true/false in the config file. this must have changed since then, the only thing in the config json is this:

{
  "Chat Settings": {
    "ChatColor": "#a0ffb5",
    "Prefix": "[Hazmat] ",
    "PrefixColor": "#47ff6f",
    "SteamIDIcon": 76561 # # # # # # # # # # # #
  },
  "Suit Name": {
    "Blue scientist suit": "Blue Scientist Hazmat",
    "Green scientist suit": "Green Scientist Hazmat",
    "Heavy scientist suit": "Heavy Scientist Hazmat",
    "Space suit": "Space Suit"
  }
}

What do I change here so that the other suits can be crafted?

assign the permission for a suit to a rank or player then they will craft the assigned suit instead of a normal hazzy.
someone without the permission who gets the suit gets the suit turned back to normal hazzy.
u can assign only 1 suit per player/rank