Default Autoship Fequency & Frequency Type Options on Product Page

functions.php

function autoship_new_default_frequency_options( $options ) {
  // Return a new set of default frequency options of 1 through 4 Weeks
  return array(
    array(
    // Days, Weeks, Months, DayOfTheWeek, DayOfTheMonth
    'frequency_type' => 'Weeks',
    // Frequency (integer)
    'frequency' => 2,
    'display_name' => 'Every 2 Weeks'
    ),
    array(
    // Days, Weeks, Months, DayOfTheWeek, DayOfTheMonth
    'frequency_type' => 'Months',
    // Frequency (integer)
    'frequency' => 1,
    'display_name' => 'Every month'
    ),
    array(
    // Days, Weeks, Months, DayOfTheWeek, DayOfTheMonth
    'frequency_type' => 'Months',
    // Frequency (integer)
    'frequency' => 2,
    'display_name' => 'Every 2 Months'
    )
  );
}
add_filter( 'autoship-default-frequency-options', 'autoship_new_default_frequency_options' );