Move Systems downward

In Sibelius, if I can move a system downwards very easily by grabbing a bar.
That influences the systems below. They also move downward and keep a proper spacing.

How can I do sth. like that in Dorico?

In Engrave mode, enable the “Staff Spacing” switch in the left panel.

Then, you can either drag the staff with the mouse, or use the blue handles.

There is more detail in this blog post:

You can hold down Alt to scale the other staves too.

Ah, the alt key did the job! Thanks!