You can still use GRTC1 to drive the train.
but you need GRTC2 to activate the features.
CHANGELOG
Release
# [v1.0.0] Added ICE Power Car - DB Class 401
Update 1
# [v1.1.0] Added ICE Power Car - DB Class 401 Sound Controller
# [v1.1.0] Added ICE Power Car - DB Class 401 Animation Controller
Update 2
# [v1.0.0] Added ICE First Class Intermediate Car - DB Class 801
Update 3
# [v1.1.0] Added ICE First Class Intermediate Car - DB Class 801 Sound Controller
# [v1.1.0] Added ICE First Class Intermediate Car - DB Class 801 Animation Controller