INSTRUCTION:

1. Unzip the .rar file
Copy paste the folder on the main directory of Railworks


2. Go to 
Railworks/assets/kal00px/386pack01/railvehicles/electric/(RST)482 046-0 Jim Knopf
and copy/paste the 386.geopcdx 
in the folder
Railworks/assets/kal00px/386pack01/railvehicles/electric/uvav 186 SBB CARGO