First things first: people are arguing over whether this is actually a map editor, but that's what the creator—Guadmaz—has called it. From what I can tell, this mod doesn't allow you to change ...

OpenIV for GTA 5 is a necessary PC modding tool without which you can't really install a number of mods.

The crew responsible for the OpenIV toolkit has provided a new look at its GTA 5 mod that adds Liberty City to the map.