Retros Hammer editor RigBuilder plugin code

local pluginService = require(game.ReplicatedStorage.PluginsService)

script.Parent.MouseButton1Click:Connect(function()
    local dockinfo = pluginService.DockWindowInfo.new("Floating", true, false, UDim2.new(0.2, 0,0.438, 0)) -- this creates a dockinfo
    local dock = pluginService:CreateDockWindow("Rig Builder", dockinfo) -- creates a dockwindow
    local main = dock.Parent.Parent
    local addinstance = require(main.Explorer.AddInstance)
    dock.BackgroundColor3 = Color3.new(0.262745, 0.262745, 0.262745)
    dock.BackgroundTransparency = .5
    local TextButton = Instance.new("TextButton") -- the r6 rig button
    TextButton.Parent = dock
    TextButton.BackgroundColor3 = Color3.fromRGB(25, 109, 234)
    TextButton.BorderSizePixel = 0
    TextButton.Position = UDim2.new(0, 0, 0.164911225, 0)
    TextButton.Size = UDim2.new(0.997, 0,0.114, 0)
    TextButton.Font = Enum.Font.SourceSans
    TextButton.Text = "R6"
    TextButton.TextColor3 = Color3.fromRGB(255, 255, 255)
    TextButton.TextScaled = true
    TextButton.MouseButton1Click:Connect(function()
        local Dummy = Instance.new("Model")
        Dummy.Name = "Dummy"
        Dummy.Parent = workspace.Objects
        local did = addinstance.Add("Model", 0, 1, Dummy) -- as of now addinstance returns the id of the instance
        local head, hrp, la, ll, ra, rl, t -- defining some variables

        local humanoid = Instance.new("Humanoid")
        humanoid.Parent = Dummy
        addinstance.Add("Humanoid", 1, did, humanoid) -- (Class, X, id, instance) is the params of Add


        head = Instance.new("Part")
        head.Name = "Head"
        head.Size = Vector3.new(2, 1, 1)
        head.Position = Vector3.new(0, 4.5, 0)
        head.Parent = Dummy
        --head.CanCollide = false
        local hdid = addinstance.Add("Part", 1, did, head)

        hrp = Instance.new("Part")
        hrp.Size = Vector3.new(2, 2, 1)
        hrp.Name = "HumanoidRootPart"
        hrp.Position = Vector3.new(0, 3, 0)
        hrp.Transparency = 1
        hrp.Parent = Dummy
        hrp.Anchored = true

        local hrpid = addinstance.Add("Part", 1, did, hrp)

        Dummy.PrimaryPart = hrp

        la = Instance.new("Part")
        la.Name = "Left Arm"
        la.Size = Vector3.new(1, 2, 1)
        la.Position = Vector3.new(-1.5, 3, 0)
        la.Parent = Dummy
        local laid = addinstance.Add("Part", 1, did, la)

        ll = Instance.new("Part")
        ll.Name = "Left Leg"
        ll.Size = Vector3.new(1, 2, 1)
        ll.Parent = Dummy
        local llid = addinstance.Add("Part", 1, did, ll)

        ra = Instance.new("Part")
        ra.Name = "Right Arm"
        ra.Size = Vector3.new(1,2,1)
        ra.Position = Vector3.new(1.5, 3, 0)
        ra.Parent = Dummy
        local raid = addinstance.Add("Part", 1, did, ra)

        rl = Instance.new("Part")
        rl.Name = "Right Leg"
        rl.Size = Vector3.new(1, 2, 1)
        rl.Position = Vector3.new(0.5, 1, 0)
        rl.Parent = Dummy

        local rlid = addinstance.Add("Part", 1, did, rl)

        t = Instance.new("Part")
        t.Name = "Torso"
        t.Size = Vector3.new(2, 2, 1)
        t.Position = Vector3.new(0, 3, 0)
        t.Parent = Dummy

        local tid = addinstance.Add("Part", 1, did, t)

        local roothip = Instance.new("Motor6D")
        roothip.Parent = hrp
        roothip.Name = "Root Hip"
        roothip.MaxVelocity = .1
        roothip.Part0 = hrp
        roothip.Part1 = t
        addinstance.Add("Motor6D", 2, hrpid, roothip) -- this has no children so we don't need to define its id

        local Neck = Instance.new("Motor6D")
        Neck.Parent = t
        Neck.Name = "Neck"
        Neck.MaxVelocity = .1
        Neck.Part0 = t
        Neck.Part1 = head

        addinstance.Add("Motor6D", 2, tid, Neck)

        head.Position = Vector3.new(0, 4.5, 0)

        local LH = Instance.new("Motor6D")
        LH.Parent = t
        LH.Name = "Left Hip"
        LH.MaxVelocity = .1
        LH.Part0 = t
        LH.Part1 = ll

        addinstance.Add("Motor6D", 2, tid, LH)

        ll.Position = Vector3.new(-0.5, 1, 0)

        local LS = Instance.new("Motor6D")
        LS.Parent = t
        LS.Name = "Left Shoulder"
        LS.MaxVelocity = .1
        LS.Part0 = t
        LS.Part1 = la

        addinstance.Add("Motor6D", 2, tid, LS)

        la.Position = Vector3.new(-1.5, 3, 0)

        local RS = Instance.new("Motor6D")
        RS.Parent = t
        RS.Name = "Right Shoulder"
        RS.MaxVelocity = .1
        RS.Part0 = t
        RS.Part1 = ra

        addinstance.Add("Motor6D", 2, tid, RS)

        ra.Position = Vector3.new(1.5, 3, 0)

        local RA = Instance.new("Motor6D")
        RA.Parent = t
        RA.Name = "Right Hip"
        RA.MaxVelocity = .1
        RA.Part0 = t
        RA.Part1 = rl

        addinstance.Add("Motor6D", 2, tid, RA)

        rl.Position = Vector3.new(0.5, 1, 0)


        addinstance.Add("nil")

    end)
end)