Here is a screenshot of the Bosch history.
yes calibration and remote temperature ( Automate your Bosch Thermostat 2 - Blueprints Exchange - Home Assistant Community (home-assistant.io))
at least for Z2M. Haven´t checked ZHA till now.
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yes but not tested with the newest version. Still on v4beta6
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Yes, it is!!
For me it is Aqara. I think this is in the newest Z2M Update ( [Refactoring] Update all Lumi (Aqara and Xiaomi) terminology, device vendor and description by mrskycriper · Pull Request #6969 · Koenkk/zigbee-herdsman-converters · GitHub)
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Hopefully it works like this in my rooms with Bosch. Very nice
@panhans , @Mar1us is right. I didnt made the update. But after the update theres also Aqara on my end.
@Ziegelsandundspucke @Mar1us just try out the current refactored version. No matter if aqara oder xiaomi. It should work the same. Feel free to test and report back. Give it some time so the calibration gets triggered.
will test this for sure but earliest start of next week
I will! So I can set it up with the external Sensor and Calibration mode right? NOT with generic calibration?
Yes, disable generic calibration and simply select an external sensor. Nothing more to do. If you want you can decrease the calibration delta and timeout. Then calibration gets triggered much often.
Its running. I will have an eye on it 
My eq-3 Bletooth thermostats have no internal temperature sensor beside the setpoint temperature and calibration uses 0.5° steps.
It seems something doesnt work correctly. The sensor doesnt get the right temperature from external sensor. There are some issues also.
I have shared the trace log also. c227facd - { "trace": { "last_step": "action/2/default/6/if/conditio
I hope this was the right way…
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Will have a look into this later this day.
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look to post #1
Holiday is to switch between two different schedulers, what you mean is away/frost protection.
Winter means heating season => heating needed.
Party mode is a not so good term for “someone manually changed temp”.
Guest mode means not using presence.
Ideas for better naming and descriptions are welcome. It’s nearly the hardest part at all. 
Only this blueprint with an external sensor