So, the answer is...
I really wanted and I checked the option to download the folder as a zip archive from a private repository, and I did the following:
1) Logged in (received, X-Storage-Token and X-Storage-Url)
2) attempts to download a file from the private repository:
wget --header="X-Auth-Token:0d7bf2ef92e39558e458XXXXXX" https://api.selcdn.ru/v1/SEL_XXXXX/archive/00119aac-c07b-46b8-8ffc-d44708d8f40a?download-all-as-zip=test.zip
And I did it. the needed folder is downloaded as a ZIP.
Now the question is:
1) This is a bug or a feature, or maybe I something misunderstood?
2) could we use this opportunity or not?The Answer Of Technical Support:
Thank you for waiting.
Yes, You can use this functionality
and for private containers.
Thank you for the comment about inaccuracies in the knowledge Base, the information in it will be updated soon.