Keysight E6680A - 2-Screen Orientation

4 System
4.3 Preload / Unload Modes
4.3.7.14 2-Screen Orientation
When you add a second Screen using the “+” control on the Screen Tabs bar,
normally the screen is added to the right of the first screen. However, sometimes it
is better to add the new screen below the first screen rather than to the right, as
shown below.
New screen added to the right (horizontal orientation)
IQ Analyzer Mode User's &Programmer's Reference 463