How to get the rest tabs of the Leads entity in api/v4 amocrm?

Question

API

Good afternoon, the problem is as follows: recently started working with api/v4 amocrm. There was a need to change the values ​​of the custom_fields_values ​​fields in the deal entity (api/v4/leads). I formulate a request, send - I receive 200, everything is ok. The problem is that I'm posting to where those fields don't exist. According to the documentation, I just make a request to leads, but there are also different tabs. And on a GET request, I get data from the "Basic" tab.

There are no fields that I need to change. I need to change the fields here:

How can I access this tab directly, and at least get data from it?
It's hardly necessary, but here's what I'm posting, and the code itself ( C# ).

Answer 1

On request GET /api/v4/leads- you get a list of deals, and the custom_fields_values ​​field will contain only filled custom fields from the deal (from all tabs) or this field will be absent if more than one custom field is not filled