How to manipulate the hinge of an object

Question:  How to manipulate the hinge of an object?

Answer:

1. In the green room, click the 'Hinges ' tab.
2. Select the hinged group that contains the hinge you want to manipulate.
3. Click and drag the slider next to the hinge you want to modify.
4. If you make an error, you can go back to the previous setting by clicking [Undo Last Display or Object Hinge Change] below the object display field.
5. Click [Apply] to implement the change and close the green room.