Use this plugin to show a custom image as map. The map window can be called by a simple Script command and cancelled using, right mouse button, escape or the mapped CANCEL button.
As of now (v0.9) the only map size is 816x624. Very soon I will update this to include other sizes.
A template map image is provided, please edit this accordingly and put it inside your 'img/pictures' folder, keeping the name of the file as Map.png. Very soon I will update this to include custom filenames.