About swapping and rewriting nodes

For example, if I set Access Granted to false, and instead I want to make Blacksmith the Ultimate for BuildCraft,
would this be the correct way to do it?

 "Access Granted": {
          "Permission required to show this node": null,
          "Minimum prestige required to unlock this node": 0,
          "Minimum player level required to unlock this node": 0,
          "Skill required to unlock node [Requires max level]": null,
          "Skill that if unlocked, will prevent this node from unlocking": null,
          "enabled": false,
          "max_level": 1,
          "tier": 100,
          "value_per_buff": 1.0,
          "buff_info": {
            "Key": "Build_Craft_Ultimate",
            "Value": "IO"
          },
          "icon_url": "https://www.dropbox.com/s/58hmrgytnntn314/Access_Granted.png?dl=1",
          "skin": 2873051221,
          "permissions": null
        },
        "Blacksmith": {
          "Permission required to show this node": null,
          "Minimum prestige required to unlock this node": 0,
          "Minimum player level required to unlock this node": 0,
          "Skill required to unlock node [Requires max level]": null,
          "Skill that if unlocked, will prevent this node from unlocking": null,
          "enabled": true,
          "max_level": 1,
          "tier": 100,
          "value_per_buff": 1.0,
          "buff_info": {
            "Key": "Build_Craft_Ultimate",
            "Value": "IO"
          },
          "icon_url": "https://www.dropbox.com/s/b4k6p03u77x9d7t/Blacksmith.png?dl=1",
          "skin": 2873051294,
          "permissions": null