The initial release is admittedly quite complex to create, but I've designed all the code to allow for manual overrides. For instance, if the launch station is clear, it will wait for X seconds for the harness to lock, followed by an additional X seconds before dispatching automatically.
Once the initial release is available, users will ONLY have the option to be a guest in SINGLE-PLAYER mode (as multiplayer functionality remains advanced for me, being a TechArtist and not a full developper at the moment).
After the release, as mentioned earlier, the code will require some adjustments to incorporate a control panel system. For example, instead of waiting for a specific duration, it will wait for user input.
And multiplayer, I am really not sure yet.
I really hope to have enough time/motivation to continue working on it after release.
Hope that helps! And thanks!
Edit: Currently the only user input for controling the ride is an ESTOP button, wich fires a real estop procedure, lights on, audio cut out, different spiels from different people, and some extras like operators announcing a train is going to garage etc...