Instant Doubles (aka Cloning)

Ok, I searched and there was a comment about this back in 2009 that it would be coming in the next release... but not much since then and no reference to it in the Cross manual.
So, any chance we can get it?
(If it's already there just let me know and I'll apologize for asking for something that's already in the software.
).
So, any chance we can get it?

(If it's already there just let me know and I'll apologize for asking for something that's already in the software.
