How to make all parts move with one button press

I have 5 identical screens that have individual controls for moving them up and down.
But I like to have a “master” button that moves all of them at the same time.


Script for ONE! screen.

door = script.Parent
door1 = door.DoorModel:GetChildren()
button = door.liftboard.SurfaceGui.up
val = door.Value
poop = door.DoorModel

button.MouseButton1Click:connect(function()
	val.Value = val.Value + 1
	if (val.Value>1000) then
		val.Value = val.Value - 1
		return
	end
	if (val.Value <= 1000) then
			for i=1, 100 do
				for j=1, #door1 do
				poop:SetPrimaryPartCFrame(poop:GetPrimaryPartCFrame() * CFrame.new(0,.020,0))
				end
				wait()
			end
end   
end)

you could loop through all the LiftX with something like

for _, lift in Screens:GetChildren() do
  DoWhatever(life.DoorModel) -- here you would run your code for moving it up
end

Also, unrelated but instead of doing many small :SetPrimaryPartCFrame()s you could look at TweenService
(And even :SetPrimaryPartCFrame() has been superseded by :PivotTo() see Model)

can’t get it to work. I’m not that good of a scripter so that’s why probably

what have you tried? maybe try taking the code you have and changing it so you have a function that will move any door up, the only way to be a “good” scripter is to keep trying stuff out
The code in my other post has a function DoWhatever() which is just a placeholder for your code to lift some door up, you should try modifying your code to fit that and post any more code you have

Where should I like up this to make sense in this script?

door = script.Parent
door1 = door.DoorModel:GetChildren()
button = door.liftboard.SurfaceGui.up
val = door.Value
poop = door.DoorModel

button.MouseButton1Click:connect(function()
	val.Value = val.Value + 1
	if (val.Value>1000) then
		val.Value = val.Value - 1
		return
	end
	if (val.Value <= 1000) then
			for i=1, 100 do
				for j=1, #door1 do
				poop:SetPrimaryPartCFrame(poop:GetPrimaryPartCFrame() * CFrame.new(0,.020,0)) -- I presume this is the code that moves the screen up
				end
				wait()
			end
end   
end)

Note that this is not my written script and this came with a model that I used to make my screens, so I don’t 100% understand this.