$(function() {
  //store select options values to map the options.
  var data = window.formyoula.form_fields["719d-648d-5b11"].get("attributes").select_option_values.split("\n");
    //Formyoula form select element component id to get child select list values to map with options.
    $("#component-719d-648d-5b11 select > option").each( function( index, element ) {
      //If check for skiping the "--None--" at index 0.
      if ( index > 0 ) element.value = data[index-1];
    });
});
//On change select options function.
$('select').change(function() {
  //Get the options value form formyoula select list element.
  var options = window.formyoula.form_fields["719d-648d-5b11"].get("select_options").split("\n");
  //Get Select List values.
  var options_val = window.formyoula.form_fields["719d-648d-5b11"].get("attributes").select_option_values.split("\n");
  //Set the custom data to hidden field
  var data = options[options_val.indexOf($( this ).val())] + $( this ).val();
  //Set Select List option as value of hidden field.
  window.formyoula.form_fields['Hidden Field'].set( { value: data } );
});