Just to be safe. In the Retropie setup I can create a config.ini for the Skyscraper. Do I understand it correctly that all default values are used, except for those that I switch on or off via the config.ini? So, for example, if I want to scrape the PC ROMs but not the subdirectories, do I just write --nosubdirs in the config.ini and trigger the process and leave all other settings at the default value?