Hello everyone, I asked myself this question, is it really possible to install whonix in tails? It turns out the whonix scheme is run inside tails and the gateway is configured to use tor through tails, thus avoiding the script tor through tor. disable tor-gatewat.gateway use tor tails. chatting with google translate 
Welcome to Whonix forums!
It might be possible. See also:
HiddenVM Project - best solution available?
However, this is unsupported by Whonix developers. This is a declined feature request. For what this means, please see:
Should you decide to proceed with this despite this being unsupported by Whonix developers, for any support requests, please contact upstream (the original developers of any Whonix / Tails combination projects) communities / support directly.
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