I have 7.5.20, and am able to navigate up and down in the history window without a mouse, the arrow keys work just great to do that.
There is a bug in Cubase 8, [BON-8450] , which breaks that function, and requires a mouse.
My question for users of Cubase 7.5.40 - can you check out for me please, did that bug appear also in Cubase 7.5.40, or can you still navigate up and down the History window with the arrow keys like in 7.5.20?
Thanks!