Security Monitor Pro allows you to arrange the cameras in any arrangement you like. Right click on the first camera preview and select 'Detach Preview'. You can now size and place the preview anywhere on your screen. Do the same for the additional cameras that you have. When you are finished, you can minimize Security Monitor Pro and your camera previews will remain on the screen in the position you selected. When you exit and restart Security Monitor Pro, the previews will reappear in the same position.