This will show you the order in which to select the system's.
1.Design System (2nd from the left)
2.Architectual System (Pickaxe)
3.Electricity and electronic information system (Microchip?)
4.Mechanical system (Gear/Cog)
5.Mathematical chemistry system (Magnifying glass)
6.Matters/chemical system (Vial)
7.Life sciences system (Heart)


I hope this helped you!