Unable to save Powertrain architecture

Hello guys,
In my project I have to use different power train architectures (BEV) for my testrun, but I am not able to save a specific architecture for a specific test run! that mean, when load a new testrun, the corresponding architecture is not shown. How to solve this?

Information about the vehicle powertrain is saved in the Vehicle InfoFile. That means that when you make changes in Vehicle Data Set you should click File > Save. You can then save the Test Run which will update the vehicle reference.