Questions regarding lighting: lighting for specifc ranks and linking lighting?

So recently me and my friend (beginner scripters) Made a lighting script

script.Parent.ClickDetector.MouseClick:connect(function()
	if game.Workspace.Light.Light.PointLight.Enabled == false
		then
		game.Workspace.Light.Light.PointLight.Enabled = true
		game.Workspace.Light.Light.Material = "Neon"
		game.Workspace.lsw1.Union.Transparency = 1
		game.Workspace.lsw1.ls2.Transparency = 0
	else
		game.Workspace.Light.Light.PointLight.Enabled = false
		game.Workspace.Light.Light.Material = "Plastic"
		game.Workspace.lsw1.Union.Transparency = 0
		game.Workspace.lsw1.ls2.Transparency = 1
	end
end)

The script works, however it only work witha single part with a pointlight, not entirerly sure how to fix that. My second question is would it be possible fo the switch to work if only a specific ranked player from group can press it. AgaIn not very sure to script these myself since I am very new, but I appreciate any help given thank you!