how do I convert this model to Filtering Enabled?

I have a script with a tool that when you click the door it opens. But well the door script is depreciated.

Script:

bin = script.Parent



function onButton1Down(mouse)

    mouse.Icon = "rbxasset://textures\\GunWaitCursor.png"

    local hit = mouse.Target

    if (hit == nil) then return end

    if (hit.Name == "YellowDoor") then

    hit.Transparency = 0.8

    hit.CanCollide = false

    wait(2)

    hit.CanCollide = true

    hit.Transparency = 0

    mouse.Icon = "rbxasset://textures\\GunCursor.png"

    end

end







function onSelected(mouse)

    print("Action Tool Selected")

    mouse.Icon = "rbxasset://textures\\GunCursor.png"

    mouse.Button1Down:connect(function() onButton1Down(mouse) end)

end