Security Monitor Pro has many display options.
You can minimize the log by click the double blue arrows in the top right of the log screen.
To have the maximum space, change the preview layout to a full screen. Select the layout you want, for example, with View >> Preview Layout >> 8 Cameras. Then click the Full Screen icon.
You can also detach the preview window to play on another monitor. Right click on a preview and select 'Detach'. Size and place this on any monitor you like.