In Dynamic Mode, a custom field can be selected for the preview and zoom image. These fields must contain the image URLs. If no data is available, the module is not loaded. In this way it is possible to use the module in dynamic templates. The image sources are configured in the article. Inside of the article only the module instance with the appropriate configuration (Dynamic Mode with the seected Customfields) has to be loaded. So you can have countless instances of the module displayed, but only one needs to be created in the backend.