How do you set or disable the bottom of the level?

If my character falls too far down (just a few feet) below the “bottom” of the level, my character disappears, and ceases taking any keyboard or mouse input (the camera stays fixed forever after this), until I restart the game. This is bad when the terrain I create has some particularly deep dips in it that go below what the engine thinks is the bottom of the level. How do I remove this bottom of the level? I’ve seen some Unreal Engine games that others have where if you do manage to get outside the edge of the level and jump off, you keep falling forever. The game doesn’t end. So I know it is possible to remove this boundary, so that the game doesn’t destroy your character after passing a certain distance below the bottom of the level. I don’t necessarily want to remove it, just set it low enough that the lowest part of my terrain does not dip below this threshold. Is it possible to change this particular setting in the current version of UE?

window>world settings>kill z is the setting you are after