How Can I add Particle Emitter to A WorldModel?

To add a particle emitter you need to use the .instance()

local Destenation = workspace -- put where your world model is


local function NewEmitter()
    local Emmiter = Instance.new("ParticleEmitter")
    Emmiter.Parent = Destenation
end



game.Players.PlayerAdded:Connect(NewEmitter) -- Put the event you want it to happed on here with the (NewEmitter)
-- Use NewEmitter() only if you want to start it without a event

If you want to add a particle emitter to a world model without a script then just hover over it click plus and find the Particle emitter icon and name