I need help teleporting all players to a spawnpoint. Help?

Sorry I don't know how to teleport people to multiple parts. But this may help.

Make a gui and add a text button. Put a local script within that text button and use the following script,

script.Parent.MouseButton1Click:Connect(function()
game.ReplicatedStorage.TeleEvent:FireServer() --Make an event in replicated storage and name it "TeleEvent". 
end)

After that make a script in server script service and say this.

game.ReplicatedStorage.TeleEvent.OnServerEvent:Connect(function()

    for _, plr in pairs(game.Players:GetChildren()) do

        local part = game.Workspace.Telepart --Make a part that is named that.
                local pos = part.CFrame

        plr.Character.HumanoidRootPart.CFrame = CFrame.new(pos) 

    end

end)

This script will teleport everyone in the server to that part.