How to input home, end, page up, page down?

Windows Tablets UBook X
4

I bought this one.

Keyboard for Ubook X in German, Spanish, French, UK and Switzerland! - Windows Tablets / Other Models - CHUWI | Official Forum

However, you have to turn the magnets in the connector strip and under the touchpad (right and left under the touchpad) by 180 degrees.

But it is easy to implement.
I think it’s even better than the Chuwi keyboard.