1. Download & install K++ mod for Solaris Urbino IV-generation:
    https://pz.hkt172.tk/omsi/kruegermatrix/solaris_urbino_iv/
  2. Install this to replace the original buses so that it works with BCS (overwrite asked files)
    https://cloud.sepaurg.eu/index.php/s/YZXDEqQpqNG6NmQ