For all Nero 18 users
in combination with a Yamaha CRW F1 burner:
"The request has been forwarded to our development department in the hope that this feature, via a Nero Update, will be reused in the future."
Original Nero Support Answer from 18.04.2018
PS.I’ve been fighting for the DiskT@2 feature since Nero 8
and hope, that with this announcement from Nero to be able to use it again soon!