Is there any way through which a simple product image will be used by the configurable product? For example, I have one configurable product of which there is 4 simple product with different images and inventory. So, the Configurable product should pick one of the simple product images which are in stock. If that simple product goes out of stock, then the configurable product should pick the different simple product image automatically which is in stock. I need this functionality because sometimes the color option shown in a configurable product is not available for the customer. Any help would be appreciated.