What does it mean to train tens of thousands of new employees for complex maintenance systems in a short time due to strong expansion and to prepare them for their work assignments? This project deals with the maintenance of a bogie on a train, where the work steps can be explained briefly and then carried out directly. Just as in the real world, several workers work side by side in the virtual world and can help each other. If there is a problem, or a fact that needs to be explained more accurately than the automatic system does, a trainer can join in and follow the steps with the trainees.