array( 'id' => 'display', 'nicename' => __( 'Display Settings', 'ninja-forms' ), ), 'restrictions' => array( 'id' => 'restrictions', 'nicename' => __( 'Restrictions', 'ninja-forms' ) ), 'calculations' => array( 'id' => 'calculations', 'nicename' => __( 'Calculations', 'ninja-forms') ), ));