1. Create a trigger and put in the BIS_fnc_liveFeed function like this:
[source, target, receiver, effect] call BIS_fnc_liveFeed as seen on the community wiki page.
My script uses the following: [d1, t1, player, 0] call BIS_fnc_liveFeed;
2. Activate Trigger and see result.
Tested on both the stable version of Arma 3 and the profiling one.