CA - multiple control of characters with randomness/variations?

Hi!

Okay Samurai said in a video, Character Animator Tips & Tricks (September 2016) - YouTube (time 1:13), that one could control more than one character for example for dancing, but that one would probably not want that. I think that is a good idea, but for that to be usable you would like to have some random variations to each puppet.

For example if I control 4 puppets singing it would not look natural if they all look exact, neither in lip sync nor in moving behaviour. So If you could choose to control them all at once, it would be good with some settings for variations. And it can be that you have some randomness set around specific values, and that you can set percentage, how big randomness that you want. And you could pair that with a "fall out" percentage, with puppets not following at all, maybe even setting alternative behvaiour for those. Then you could have a 1000 characters choir, and still easily get it to look natural. Lots of other uses also.

If you have more random settings in physics settings that would be great also. So in general, more randomness and variation settings would be great.

Thanks!