How to target multiple objects in your script?

Let's say I want to make a light switch that turns on and off multiple lights. I know how to make it with one light source, but not multiple. All the light sources have parents with the same name and are in the same group. How do I do it?..

Here's the simple script of the light switch:

light = game.Workspace.light2.light.PointLight
function onclick()
	light.Enabled = not light.Enabled
	script.Parent.Click1:play()
	wait(0.1)
	script.Parent.Click2:play()
end

script.Parent.ClickDetector.MouseClick:connect(onclick)

"light2"is the model and "light" is one of the multiple parts of the model. It only turns on/off one of the PointLights.

I'm really sorry for my stupidity, but I couldn't find the answer anywhere.