nDisplay negative window coordinates

On Windows 10 it seems the origin of the primary display is always 0,0. If there is a display positioned to the left or above it, then its origin is a negative value.

Using nDisplay I can’t find a way to specify a negative position to place a window. I am only working in UE 5.3 using the config editor. The editor accepts a negative value for the position of the display node but it doesn’t work. For the viewport position the editor corrects a negative entry to zero.

Is there a solution using the editor? Thanks in advance for any answers. (Suggestions are also welcome).