Standalone Viewer window position

I often want to compare two images in the standalone viewer. I know I can open one and then the other in a new standalone window. What I want to know is it possible to open one on the left hand edge of the screen and the other on the right? Or, even, better, open them next to each other so that they do not overlap?

In the next update you'll be able to specify the position and size of the viewer window using arguments for the Show command.

Many thanks.A small, but useful addition to Dopus's impressive armoury.