tablet pro

I've been trying to make this work for hours. Unfortunately I have the problem that the keys cannot be operated with the fingers. At most they react with the pen. But this is very unreliable. So my question is, does the whole thing even work with the configuration? In Zbrush, for example, the Shift key must often be used in combination with the pen. And above all at the same time. I would be very happy about any advice!!!