How to programmatically write a property in add. props?

Question

1C

There is an additional prop X . Type - "Additional value". You need to check if the attribute has a property. If there is none, it is automatically created.

СвойствоДляЗаписи = ПланыВидовХарактеристик.ДополнительныеРеквизитыИСведения.НайтиПоНаименованию("X");

Then I tried to find methods for recording - I did not find it.

Answer 1

НовЗнчСв = Справочники.ЗначенияСвойствОбъектов.СоздатьЭлемент();
НовЗнчСв.Владелец = ПланыВидовХарактеристик.ДополнительныеРеквизитыИСведения.НайтиПоНаименованию("Название");
НовЗнчСв.Наименование = "Значение";
НовЗнчСв.Записать();

Answer 2

If typical configurations, as a recommendation to use the capabilities of the BSP
WritePropertiesUObject
Writes additional details and information to the owner of the properties.
Changes happen in a transaction.
Syntax
Procedure WritePropertiesUObject(PropertyOwner,PropertyFROMValueTable) Export