Can someone post a link to description or video how to setup DX6i for rescue/bailout?

There is no guide specially for DX6i,
but bailout setup is quite easy.

You only have to set Stabi/Function - Rescue in the software and then set in the transmitter two gyro gains.
First for normal flight, second with inverted value.

Inverted values are activating the rescue or other selected function.

In DX6i there is only one issue that Gyro Gain range is from 0% to 100%, not from -100% to 100%.
So 50% is basically 0% - center value there.

With the diagnostic tab in the software you can check it easily so you can see real gyro gains there immediately.

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Spirit System developer

Thank you!
What do I need to purchase together with FBL unit to use it with two Spektrum satellites ?
Sat adapter is for one or two satellites or is it better to use 6ch Spektrum receiver ?
I dont want to use only one sat because of safety reasons (had problems with one sat).

If you have DX6i and don't plan to use internal governor it may be better to use normal receiver.
In case that you wish to use our governor then you have to use satellite connection.

For two satellites you will need just one Spektrum adapter.

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Spirit System developer

Does that mean if I use only satellites there could be problems in flight?

It will work fine with two satellites too. But recommended by Spektrum is to use classic receiver + satellite.

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Spirit System developer