How I could change user status using API?
Well,
honestly I'm not really familiar with the API, but my thinking would go like that:
All available API calls are based on already existing functions or methods.
Thus, if a certain API call is NOT available but a part of core Ossn or a component
(in your case the admin panel or the Who Is Online component)
I would take a look inside and implement that code accordingly in your UserStatus API by means of the ExtendAPI feature
The logged user appears for friends and others. Like Online, Offline, Away ..etc.
Which user status?
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