Creating multiple copies of the object for rendering

[sertanV7D8A]

Hi Folks,

I really need your help with a problem that I face everytime I finish desingning parts for this project. To simplyfy the problem, imagine designing a ball but you need to render a pool of balls with 20 different colors. Last time it took me forever to copy paste, unlink and change color and position every single piece. There must me something out there that does the job quicker. 

Is there any easy way to generate multiples in preselected colors? Any other free software or plugin maybe usefull as well. Rendering must be very realistic though.  

[Anonymous]

What I would do is create a new design that uses the ball as a component. that way you can drag and drop the ball into the design as many times as you want and you can edit the appearance of each one.