City package and side steps on Bigster

Does anyone know if the city package in the new Bigster is something that can be easily unlocked later or is it actual hardware they need to add?

And does anyone know why the additional side steps can be added on the official german website of Bigster but they are not available on the official polish Website. Is it illegal in poland or can I later simply order them from a german store?

I realize there are some interesting differences in the extras that can be added in each country.