1. Download & install K++ mod for Solaris Urbino IV-generation:
   https://pz.hkt172.net/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/s/edW4tSj7Psb6pd5