Advanced User Defined Variable - Step and Repeat Transform Live Effects
I think I'm getting at a broader idea that includes some requests already posted - Advanced user defined variables to duplicate or step and repeat objects any number of times. This would allow users to either or conform or randomize copies of a Transform for advanced effects. I saw this idea some years ago by a Russian guilloche pattern product called Excentro ( http://www.excourse.com/excentro/index.html ) screenshot attached, that does just that.
Perhaps this is a third party plugin, or a separate Adobe product, but I think it would be great to take this on as an Illustrator feature. You can imagine the variety of step and repeat live effects that users could create, not just for guilloche patterns, but for many other art and design purposes, and it would be great to import this into After Effects!!
duplicate its graphic objects any number of times with the individual attributes of the objects modified by user defined values

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Sam commented
It would be good for Adobe Illustrator to have a proper Step & Repeat function as this is a standard term used in lithography and prepress. Thank you. mblabels.com.au