if you build plenty of spirals in a row and get 577 long train you can can delete all of your factory in one click.
Here is link to video in google drive https://drive.google.com/file/d/1CEhevhOpdODDc7Hp9IuMyfirShJluYUw/view?usp=sharing
#[0.09-rc7] strange train bug that delete everything
clever trellis
forgot about save file