I am using Openstudio/Sketchup. I'm having some problem When I buil HVAC system. Problem 1. I have 3 chillers and many FCU, I want to load each chiller 1 one by one such as, 0-200 ton chiller 1 ,200-400 ton chiller 2,400-600 chiller 3, but I do not know How to do by that way. Problem 2. I want create more FCU in openstudio, and I create plant loop 1( supply 3 cooling tower and demand 3 chiller), continues I create plant loop 2( supply 3 chiller and demand more coil cooling), continues I create more air loop( supply a coil cooling and demand thermail zone). I don't know right. Please help me! Thank you.