All settings you can find in BeRocket_CE class in static variables $defaults.
public static $defaults = array(
'visual_only' => '1',
'currency_via_ip' => '1',
'user_profile' => '',
'use_currency' => array(),
'currency' => array(),
'currency_image' => array(),
'custom_css' => '',
'multiplier' => '1',
'use_open_exchange' => '0',
'currency_site' => 'oer',
'open_exchange_api' => '',
'currencylayer_api' => '',
'last_oer_data' => array('update' => 0, 'base' => 'USD'),
'script' => array(
'js_page_load' => '',
'js_before_set' => '',
'js_after_set' => 'location.reload();',
),
'plugin_key' => '',
);