ETS2 - MAN TGX 2020 Improve Navigation Screen V1.1

Changes 1.1
The dashboard has also been improved

Added two navigation combinations for screen display with more options
The first and second types are officially displayed
The third type is navigation+right rearview mirror
The fourth type of navigation is the right rearview mirror+front camera
The fifth one is to turn off all, black screen

Authors: Tar Bayan