Close the key window?

Hello, I have seen today in the city that one of them closes the windows with his 3 gulf by simply holding the key longer when closing. Does anyone know if this was done at the golf factory? Or is it even in our Audis? (Golf III is about the same generation as the B4, or? are some parts identical.) If only in the gulf, did schomal jmd try to retrofit this in the B4? Vll is it only a relay that gets contact from the ignition lock or the ZV? mf g kaindl