Onseepawn problem - if actor is out of camera-range

hey, so recently i began to work on an ai so that whenever the player sees an other character, the character would stabd still. but when the character isnt in the fov of the player, it should move.i am trying to solve this with pawnsensing, but there is only the method onseepawn and not a method for the case if the character is not in the fov of the camera.so here is my question: is there an alternativ to a method like onnotseepawn or something like that?