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# Connect the extra limb to the character

In the following procedure, you create a Parent-Child relationship between the Servo arm and Mia’s shoulder.

To connect the extra limb to the character:

1. Switch to X-Ray display mode (Ctrl-A) in the Viewer window.
   NoteToggle between Normal mode, Models Only mode, and X-Ray mode using the keyboard shortcuts Ctrl-A.
2. In the Character Controls window, make sure Mia is selected as the current character.
3. Click in the Viewer window then do the following:
   - Press Ctrl-W to switch to the Schematic view.
   - Right-click in the Schematic view and select Auto-Arrange and then Arrange-All from the context menu.
   - Press A to see all the nodes in the Schematic view.

     The Schematic view displays a hierarchy for Mia’s skeleton (A), Mia’s Control rig (B), and a third hierarchy for the Servo arm (“ServoMaster”, C).

     Schematic view of hierarchies in the scene A. Mia’s skeleton B. Mia’s Control rig C. The Servo arm

4. Zoom in on the Servo arm (ServoMaster) hierarchy at the right of the view (C) and select the ServoMaster node.

   ServoMaster node selected

5. Switch back to the Producer camera view (Ctrl-W) and zoom in on Mia’s right shoulder. The ServoMaster node null is still selected.

   The ServoMaster null is selected in the Viewer window

6. Press the P keyboard shortcut to activate Parenting mode, then drag the ServoMaster null to the Mia:RightShoulder bone (A).

   The bone is highlighted green as you parent the Servo arm. This parents the Servo arm to the right shoulder bone (B).

   A. Parenting the ServoMaster null to Mia’s right shoulder bone B. After parenting

7. Switch to the Schematic view to verify that the Servo arm is a child of the Mia:RightShoulder bone.

   Schematic view showing parenting structure A. Mia:RightShoulder bone B. Servo arm hierarchy

   NoteThe Mia:RightShoulder node is found on the left side of the Schematic view. If you have not already done so, right-click and select Auto arrange to clean up the hierarchy.
8. Switch back to the Producer Perspective view.
9. Select the ServoControl effector at the end of Mia’s Servo arm (A), make sure you are back in Parenting mode, and parent it to Mia’s right shoulder bone as well.

   A. ServoControl effector B. Right shoulder bone

10. Switch to the Schematic view to verify that the ServoControl effector is a child of the Mia:RightShoulder bone.

    Schematic view showing parenting structure A. Mia:RightShoulder bone B. ServoControl effector