IFR / AI

Hi there,
I have noticed that some AI aircrafts are giving their IFR destination before taxing and some dont (they just say IFR). How can I change this and make sure that they all give their IFR destination? i cannot find an explanation anywhere
Hope someone can help me!
thanks
Tom
I have noticed that some AI aircrafts are giving their IFR destination before taxing and some dont (they just say IFR). How can I change this and make sure that they all give their IFR destination? i cannot find an explanation anywhere
Hope someone can help me!
thanks
Tom