hi there everybody!

Does anybody knows hoy to add a pipesys extension? I use the Hysys v3.2 and in the dialog box UnitsOps Case (main)--- available units operations, I can't see Pipesys extension...

if somebody knows how to do that please help me......otherwise please explain me how to do hydraulic calculations under Hysys environment.....better if there are some examples...

good day!