Being able to copy ALL parameters from one puppet and apply it to another
It would be great if you could copy and paste all rigging and other parameters from one puppet to another. Say you're creating minions, each slightly different looking from the others, but largely the same. Hours could be saved if you didn't have to rig each.
And if there were then a couple of issues that needed to be adjusted due to the unique properties of one (say he's only got one eye), that would still be much quicker.