In the last few years a couple of people asked how i created the multiple rendering windows in my Landscape & Map Creator application. So here's how: i used a plugin which i made for this purpouse. The plugin is called BBB Rendering and i'm now releasing it to the public.
Since i haven't made help files, only help is the example that comes with the plugin. For instructions how to use BBB SETRENDERSTATE command have a look at this