Increase the zone of the screecher wave area

Hi a lot of people have asked about the screecher wave area saying that the zone that triggers the wave is too small for the area. I was wondering if it were possible to increase the area where the wave is to include all of the screecher cave to avoid the event area timing out while you kill the ones outside of the zone.

[Next Island, 133336, 85176, 124, Screecher wave]