COOLING SYSTEM LAYOUT for Plastic Injection Molding Part-how to design that

Hi Guys,

Thank you so much for my prevous questions and it was very very helpful. 

I only for now need to find how to design cooling system for Plastic Injection Molding part.

I understand cooling channel what will be diameter rule from part dimension, what baffle from part but confusse me how to make cooling channel layout around part.

Is there any option in NX where inside of NX they show me suggestion approximately cooling channel layout for my plastic part , or do I need to make cooling system channel alone ? 

Any option in Mold Wizard for that or without Mold Wizard - some other suggestion ? 

Thanks in advance