Can I change the whole rotation of a model without going to all the parts?

Can I change the whole rotation of a model because I have to go to every part in the model and rotate it

Using Primary parts and SetPrimaryPartCFrame you can rotate a whole model.

Remember to set the property "Primary Part" in the model to any part to rotate around.

local model = workspace.Model -- set

model:SetPrimaryPartCFrame(CFrame.new(model.PrimaryPart.Position)*CFrame.Angles(0,90,0)) -- change the angle...

You could always tween models.. Here is tunicus's snippet

local tweenService = game:GetService("TweenService")
local info = TweenInfo.new()

local function tweenModel(model, CF)
	local CFrameValue = Instance.new("CFrameValue")
	CFrameValue.Value = model:GetPrimaryPartCFrame()

	CFrameValue:GetPropertyChangedSignal("Value"):Connect(function()
		model:SetPrimaryPartCFrame(CFrameValue.Value)
	end)
	
	local tween = tweenService:Create(CFrameValue, info, {Value = CF})
	tween:Play()
	
	tween.Completed:Connect(function()
		CFrameValue:Destroy()
	end)
end

Anywho, if this helps, accept the answer

Just do SetPrimaryPartCFrame(). Really easy to do and just does the job.

local model = workspace.Model

model:SetPrimaryPartCFrame(--//Position Here\\--)

If you want to learn more, I suggest you go to this link: https://developer.roblox.com/en-us/api-reference/function/Model/SetPrimaryPartCFrame