2x for these keys:

Numpad0 / NumpadEnd
Numpad1 / NumpadEnd
Numpad2 / NumpadDown
Numpad3 / NumpadPgDn
Numpad4 / NumpadLeft
Numpad5 / NumpadClear
Numpad6 / NumpadRight
Numpad7 / NumpadHome
Numpad8 / NumpadUp
Numpad9 / NumpadPgUp
NumpadDelete / Decimal

The keys are renamed by Windows (the operatings system). It's not my decision.

I hope you can make a "how to" in German. That will be great!