Forerunner 265 and Di2 not working


has any of you tried and succeeded to connect their Di2 wireless to its FR265 ?

I've managed to get all my bike sensors connected (power, speed, varia) but my Di2 (which works fine with an Edge 520+) is not found.

I cannot see also the Di2 category on the Sensor Menu on the watch.

According to this support page it should work.

Any clue ?