Using a GPS on Betaflight: Setup, and looking at Rescue mode

I had a GPS left over from my slightly unsuccessful Ardupilot experiment, so let's see how we can use it in Betaflight. Both for looking at useful stuff like out direction to home, distance out, speed, height, etc as well as looking at how GPS rescue mode is setup and used.
I used the BN-220 GPS for this video, this was supplied by Banggood for review, sso please use this (affiliate) link if you want to check it out
The BN-180 was suggested to me as better as it was even smaller and lighter !
I was flying the HGLRC Batman 220 in this video which you can check out via this (affiliate) link
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