Ctrl Click Delete Undo

local Plr = game:GetService("Players").LocalPlayer
local Mouse = Plr:GetMouse()

Mouse.Button1Down:connect(function()
if not game:GetService("UserInputService"):IsKeyDown(Enum.KeyCode.LeftControl) then return end
if not Mouse.Target then return end
if Mouse.Target.Transparency == 0 then
Mouse.Target.Transparency = 1
Mouse.Target.CanCollide = false
elseif Mouse.Target.Transparency == 1 then
Mouse.Target.Transparency = 0
Mouse.Target.CanCollide = true
end
end)