How can I draw my room layout in Yandex maps?

Question

Yandex maps

Good day.
Guys tell me where in the Yandex service you can draw your own map like on this site? site

I even called everything there and did not understand.

Answer 1

This is how it is drawn in the NJC, but it’s impossible to draw like that. Only large shopping centers and seemingly train stations. Those. drawing your office at work will not work.
https://yandex.ru/support/nmaps/indoor.html
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Oh yes, in your example it's just an image and a geojson with hover boxes.