Anyone got fog lights wired up to VW factory switch?

Hi, I am fitting fog lights to my bus using one of the VW switches below. Can anyone tell me the postions on the switch? Are there 3 on positions, 1- front fogs only, 2- rear fogs only and 3- front and back together (or something similar)?



If anyone can tell me the right positions that would be a great help and a wiring diagram would be even better!!!!!

Thanks all.

 

How many physical positions does the switch have? I'd suspect only on or off.