I find P8 Dependent Parameters lots of fun to use.

I set up Andrea's Head as the Control for P8 Alyson's Head and P8 Ryan's Head. Note: I could have made it Alyson and Ryan's Hip or any other body parts.

Just to make it simple, I made two DPs

1. Twist Andrea's Head - Will simultaneously Twist Alyson's and Ryan's Head
2. Bend Andrea's Head - will simultaneously Bend Alyson's and Ryan's Head
3. Side-Side Andrea's Head - will simultaneously Side-Side  Alyson's and Ryan's Head

So far I haven't experimented with just how many figures I can control and hou many body parts. I have controlled 4 or more body parts on two figures before.

I could take the segments of a tail and control them all by one body part. Turn the dogs head and have his tail curl leftRidght UpDown

"That government is best which governs the least, because its people discipline themselves."
Thomas Jefferson