The workers at Station_04 have submitted an improvement suggestion. The employees need to walk very long distances, so the placement of the materials needs to be optimized.
Look at the worker paths of Station_04 in the 3D view to investigate the improvement suggestion further. Use the “Animation Control” for a better display. This gives a live view of how the workers are running. The view shows that these routes are very inefficient.
To solve the problem, open the Colorizer and select "Worker -> Box" (option is found under more...). Now you can see that the shelves are on the wrong side of the station.
Optimize the placement of the materials in the Material Zone Editor.
Save your progress with the button in the upper right corner of the screen.