Filtering Ticket name and description in SPCO in EE4.6.23

functions.php

function ee_revise_registration_checkout_line_item_desc(  $original_description, $line_item, $options ) {
  $datetime_names = array();
  if( $line_item->ticket() instanceof EE_Ticket ) {
    foreach( $line_item->ticket()->datetimes() as $datetime ) {
      $datetime_names[] = $datetime->get_dtt_display_name(true);
    }
  }
  return sprintf( __( ' for "%1$s", for datetime(s): %2$s', 'event_espresso' ),
    $line_item->ticket_event_name(),
    implode(", ", $datetime_names ) );

}
add_filter ('FHEE__EE_SPCO_Line_Item_Display_Strategy__item_row__desc', 'ee_revise_registration_checkout_line_item_desc', 10, 3);

This is how it displayed for me: https://docs.google.com/file/d/0B2KCao4zFjaxVEdTRElzdmJUaGM/edit?usp=drivesdk

You can use the false param e.g. $datetime->get_dtt_display_name(false); so it will always print the date time. When it's set to true, it will use the actual name of the date time if a name is input for that date time.