How to apply non uniform pressure in a cylinder

Hi,

I am analyzing a cylinder full of water and I want to simulate the pressures that are generated in the shell at different levels. To this cylinder add a nozzle and I want to analyze the effect of the pressure at different heights.

I have SW version 2014 and I want to enter the option not uniform pressure but I get error.

How can I configure the software to represent this phenomenon?

SolidworksSimulation