You can use the Pole offset settings found in the Chain IK constraint to change the Pole’s position. These values are added to the Pole object’s position.
To create a Pole offset:
- Double-click the Chain IK constraint in the Scene browser to select it.
- Open the Properties window. The constraint settings display.
- Expand IK Settings > Pole Offset and set a value in the Pole Offset X, Y, or Z fields for the desired effect.