The mod adds a new keybind, while the keybind is held the user can use their mouse scroll wheel to change the FOV(Field Of View) setting without ever needing to pause the game, using the mod the FOV setting can be set to ranges not accessible in the vanilla game: from 5 to 140 FOV

in the future i will try and add config allowing to change the min and max, as well as the scroll sensitivity (by how much FOV changes per scroll)