Load and End script for a holo?

How do you make a script to load and end maps?

Make a really detailed map, then paste this into a script inside the map, and hit the Play button...

-- RUN AT YOUR OWN RISK! I wrote this down rlly fast

while true do
end
--[[  

Players = game:GetService("Players")
Players.LocalPlayer.Chatted:connect(function(msg, plr)
	if msg == "Load" then
		game.Lighting.Map:Clone().Parent = game.Workspace
	end
	if msg == "UnLoad" then
		game.Workspace.Map:remove()
	end
end)

]]--

Copy and paste that Exactly, and say "Load" to load the map and "UnLoad" to Unload the map...