Arms

The arms come next after the spine and they are very similar to the legs and from the use of set driven keys it was easy for me to set up the finger clench and finger spread. As well as the hand controller I have added another pole vector locator onto the elbow which will do the same as the knee controller keeping the elbow in the correct position. To clench the hand you can rotate each joint on the axis then set the key to key it in place.

Pole vector

Finger Clench

Hand Controller Attributes

Hand controller