Seatbelt and no smoking signs in the 747

Thanks for taking time answering my stupid questions :-) As soon as I'm ready with the VFR World Tour on IVAO I will start investing more time in the 747 and listen more carefully for these sounds. When it comes to the real a/c and that the sound won't chime if in 'auto' and then turning the switch to 'on' and 'auto' already did that...well that seems to be modelled here as well as far as I can remember.Again, big thanks for taking your time answering my questions Q!