I have a monitor that is partially behind my main monitor (to keep it from blocking my speakers). Is there a way to simulate this in monitor configuration?

I've created three virtual monitors for my monitor that is partially blocked by my main monitor (two for the visible portions of the monitor, and one for the blocked portion). I've filled the virtual monitor that is blocked with padding and the behavior I'm looking for is to have the mouse jump over that padding onto the other two virtual monitors.

Attached is an image showing my configuration. I've tried overlapping them in monitor configuration as shown, but "Hold shift to prevent monitor snapping" doesn't seem to work at all, and they always snap, regardless of where I position them.

Is there any way to accomplish this?

I'm trying to do something similar. I remember SoftTH allowing multiple viewports out of a single render, allowing duplicate display of any portions you wanted. That's the sort of thing I'm trying for here.

Basically, I need to mirror a display to only part of one monitor. I have two screens, and I want one of them to display a chunk of the other for tablet use doing graphic design.