Actor.HasLOS() and ObjectReference.GetDistance() would probably do the job, but i would have to loop over all actors in the specific cell...
Could i maybe use a custom spell effect for this? Like creating an AoE spell that i cast on ActorX, and then figure out which actors where affected by that spell? That was just an idea i had today, no clue how to do that or if it is even possible

Anyone have done this or something similar and can give me some advice please?
Thanks
boma