I'm using GNOME 3.28.2 on Ubuntu 18.04.4.
With the keyboard shortcuts "Special" + "Left Arrow", I can move the current window to the left, and resize it to half the screen; with "Right Arrow", the same, but to the right. A vertical split of the screen is created
With "Up Arrow", the window is resized to full screen. I would like instead to move it to the upper half of the screen. In other words, I would like to obtain a horizontal split of the screen, similar to the vertical split which is obtained with "Left" and "Right Arrow".
Is it possible? How?