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Before

After

1. On the [Model] tab, go to
   
   
   press ▼ at the side of
   [Move/Rotate]

Then click [Rotate] on the submenu.
 

2. Highlight the top case and click to select.
   
    

3. Click in the parameter input dialog box.
    

4. Enter the coordinates of Point on Rotation Axis (X:50, Y:95, Z:8.5) and click .
    

5. Enter the Vector of Rotation Axis (X:-1, Y:0, Z:0) and click .
    

6. Enter Rotation Angle: 170 and click .
    

7. The rotation angle is measured clockwise in the vector direction of rotation axis.
    

7. Click to exit the dialog box.
    

The top case has been rotated.