I don't know the number of positions but I can provide B4 Euro part numbers for left hand drive vehicles. 1996 is listed showing production dates of 10/93-12/96. "-01C" is the color code for black which is the only option. Actually 1997 was a split year in Europe, so this covers all the 97 B4s in Europe too.
3A1-941-532-01C Multiple switch for side lights, headlights, and rear fog lights, for vehicles with electric beam range adjustment
3A1-941-531-A-01C Multiple switch for side lights, headlights, front and rear fog lights, for vehicles with electric beam range adjustment
3A1-941-531-B-01C Multiple switch for side lights, headlights, front and rear fog lights for models with day driving headlights, for vehicles with electric beam range adjustment. Model "S..", "FIN", "N..", "DK."
3A1-941-531-A-01C Multiple switch for side lights, headlights and rear fog light
3A1-941-531-B-01C Multiple switch for side lights, headlights, front and rear fog lights
3A1-941-531-D-01C Multiple switch for side lights, headlights, front and rear fog lights. Model "S..", "FIN", "N..", "DK."
My guess is 3A1-941-531-B-01C is what you want.
If someone is willing to PM me how to cut and paste the page out of ETKA so it will display in the post in simple terms that any idiot can understand I'll be glad to post the whole page.