How to move an object across X & Z angles while keeping the Y angle locked in one position?

I've been working for a few days now but I can't seem to find a reliable way to make an unanchored object hover in the same Y axis while being able to move its X and Z axis. Or something that works like a weld but also works when one part is anchored. Any ideas?

Hi there,

You can try and use a loop to make sure that it stays always in the Y value you want to! I believe that some bodymovers can do so, but can also still be influenced by the player.

while true do
	part.Position = Vector3.new(part.Position.X,YValue,part.Position.Z)
	wait()
end