Most preferences and options can be configured by adding/modifying them songkong.properties, they are stored as name value pairs
e.g.. configuring
preview=false
would disable Preview Only on the Basic tab, setting it to true would enable it. The vanilla songkong.properties file does not contain all the options because the defaults are stored in the application itself, so options are only added to songkong.properties when they are changed by the user. Ask on the forum http://www.jthink.net/jaikozforum/forums/list.page if you need help with configuring a particular options manually.
The genrelist.txt file can be used for configuring genre mappings, classical_people.txt, classical_composers.txt, classical_conductors.txt and not_classical_release.txt can be configured to fine tune classical music identification.