Can DeckLink 8K Pro output a fill & key while recording

Hello,

I'd like to simultaneously output a fill & key stream while recording from a 3rd port. So I'd be using 3 of the 4 ports of the cards:
- 1 to output the fill
- 1 to output the key
- 1 to receive a stream

Is this possible? If so, which profile must I set on the card? I've tried to play with the four possible values without success.

Thanks in advance

Alright I found the answer: yes it's possible using bmdProfileTwoSubDevicesFullDuplex:
- plug key to SDI 1
- plug fill to SDI 2
- plug input to SDI 3
or:
- plug key to SDI 3
- plug fill to SDI 4
- plug input to SDI 1

It didn't worked originally because I plugged my input to SDI 4 instead of 3, and in this mode the ports are in OR out, both.

Now I have perfs problems as my computer can't generate my AR layer + record the input, but that's a story for another day