Gyro_Force_AddProperty_WaterOnly(entity force)
This function will apply the water-only property to the specified force. As the opposite of the air-only property, it will cause the force to interact only with submerged objects, either in water, slime or lava, and completely ignore those in a different content type. It may be used, for example, to create strong underwater currents or other, similar effects.
Gyro_Force_RemoveProperty_WaterOnly(entity force)
This function will remove the water-only property from the specified force.