Lua movements help please

[Dexftw]

I need help with movements, im really bad at them.. tfs 0.2.10 When I step on the water tile 4823 = id I want it to teleport me straight down, could anyone help me with it?

 

[Cykotitan]

movements.xml

	<movevent event="StepIn" itemid="4823" script="water.lua"/>

water.lua

function onStepIn(cid, item, pos, fromPos)
	pos.z = pos.z + 1
	doTeleportThing(cid, pos)
end