So I enjoy playing about with free roam in training centre. But the placement of some of the E prompts that boot you out and into a scenario are placed in such a way that you can accidentally enter one whilst attempting to board a locomotive/passenger car that is parked near the prompt area since the E is also used to board it is easy to accidentally start a scenario and lose what you were doing previously. This could be prevented by adding a conformation dialog that you need to accept after hitting E. So instead of just being unceremoniously dumped into a scenario by accident the game would prompt with a yes/no box "Are you sure you want to start the scenario: [name]? Unsaved progress in the current session will be lost."