# ACB PPP ExtraNetwork Mapping Options node * **folders**: You can enter multiple folders separated by commas. You can leave it empty (the default) and add a `ppp_extranetworkmappings` entry in the **extra_model_paths.yaml** file (recommended). * **definitions**: Extranetwork Mappings definitions (in yaml format). Direct input added to the ones found in the extranetwork mappings folders. Allows the mappings to be included in the workflow.