As the title says could we please have a sandbox option so that you can start with low zombie numbers and have them increase up until the peak population day without having to have respawn on? I don't know how complicated this would be to implement but at it's most crudest could we not just have an option in sandbox to have respawn on until peak population day? so basically respawn is on up until the game reaches what ever day the player has set as the peak population day.