I'm trying to use the chimney smoke MSTT and i need it to drift in a certain direction.

by default all the chimney smokes drift to the east, and i need them to drift west. i tried rotating the fx object in the worldspace with no luck. i also tried setting wind direction in the weather system but it doesnt have any effect. how the heck are you supposed to change the direction of the smoke drift. i dont want to rotate my entire world 180 degrees just for a stupid chimney smoke lol