All settings you can find in BeRocket_cart_suggestion class in static variables $defaults.
public static $defaults = array(
'display_before_cart_table' => '0',
'display_after_cart_table' => '1',
'display_after_cart_total' => '0',
'widget_style' => 'default',
'slide_count' => '3',
'suggestions_title' => 'Maybe You want something from this...',
'max_suggestions_count' => '3',
'default_suggest' => array(),
'category_suggest' => array(),
'product_suggest' => array(),
'custom_css' => '',
'script' => array(
'js_page_load' => '',
),
'plugin_key' => '',
);