feature_content_projects.features.field_base.inc

    'settings' => array(
      'handler' => 'og',
      'handler_settings' => array(
        'behaviors' => array(
          'og_behavior' => array(
            'status' => TRUE,
          ),
          'views-select-list' => array(
            'status' => 1,
          ),
        ),
        'membership_type' => 'og_membership_type_default',
        'sort' => array(
          'type' => 'none',
        ),
        'target_bundles' => array(
          'builder' => 'builder',
        ),
      ),
      'handler_submit' => 'Change handler',
      'target_type' => 'node',
    ),