This gives you flexibility on adjusting the shadows intensity etc. You can also save the render as layers to use in Photoshop like editor. Saving without the background allows you to use an image editor such as Photoshop and customize the background. with the option of saving without the background, that is, if the file format support transparency such as PNG but not JPG. Once your render looks the way you like, you can save it to an image file, like JPG, PNG etc. This also applies to running Raylectron without loading a model. You can then use this to load a different one. When you load a model, it will by default load the configuration file of the same name as the model file. You can give it different names if you need to have different settings for the same model, such as, a render of your house at sunset without trees and one with trees from the Assets. If you have changed any settings, you can save them to a CFG file. Here you can open a previously exported Sketchup model (ROF) or an OBJ file.