There are also machines in the room to deposit the final full cells/half cells to save the fabricated cells' performance or discard them if the cells have failed (Figure ). All the processes are simulated with realistic time, and when desired, time can be accelerated using a time control panel, allowing to jump 20 minutes, 1 hour, 4 hours or 8 hours in the future (Figure ). This gives users a realistic sense of time and helps them understand the bottlenecks in production speed. The application stores the sequence of processes performed and their corresponding parameter values during the simulation. The instructor has the capability to save the room's state using an observation mode within the application, ensuring continuity and convenience in the training sessions. The application is also equipped with features like virtual notebooks, Easter eggs, and virtual labels to enhance engagement, interactivity and functionality (Figure , and e, respectively). The virtual notebooks enable the instructor to pre-define a series of steps for students to follow, offering a structured and guided approach to learning. These predefined instructions streamline the process and ensure consistency and accuracy during the student's interaction with the virtual pilot line environment. Virtual labels are strategically placed at every stage of the electrode preparation and at the cell level, providing detailed insights into both the specifications and the state of the sample cell before and after each step. For example, a virtual label present on the electrode after the calendering process contains the sequence of processes performed to reach the current state and the parameter values chosen during each process. This feature ensures that users, whether instructors or students, can readily access critical data in real-time, enhancing their understanding of the process and its outcomes. The inclusion of Easter eggs serves as an engaging and educational addition. These hidden features are designed to familiarise users with the virtual battery pilot line environment, improve their proficiency with the controllers, and promote an ergonomic workflow within the BMM. By incorporating such elements, the application supports skill development and fosters an enjoyable and intuitive learning experience. Easter eggs include pictures from the recent alumni graduation ceremony of the MSc. program, pictures of individuals who have contributed to the development of this tool, and Nobel Laureate Prof. Dr. John B. Goodenough, a battery pioneer, along with a key message. Furthermore, instructors can customise these Easter eggs to personalise them according to the end users before the VR session.