DisplayPort and Cubase???

Anyone using Cubase 9 or above on the DisplayPort that’s on newer motherboards? I believe we can attach a splitter to this and run 2 monitors. How does it expand? Does Windows see 2 monitors we can jump across or simply 1 wide resolution?

My concern is expanding the mixer in 1 monitor and the project in the other. If it’s 1 wide resolution, 2 monitors, this won’t work as expected, the way it does with 2 monitors, standard resolution that we can jump across.