Hi Mircea,
I didn’t mean the platform version, but what is your 1C configuration: 1C:Drive, 1C:Accounting Suite or some other?
Why am I asking this? The fact is that standard 1C solutions already have a special built-in mechanism for saving document attributes. This is called "Object Change History".
If you have some other configuration, then the developer will have to create this mechanism on their own.
You can find the name of your configuration as shown in the screenshot