If you select a Group of Openings, each object is rotated from the Center of Itself.
Select the desired object(s).
Slide the Rotate Slidebar to the desired rotation value.
Click the desired Preset Rotation button.
Enter the desired Rotation Value.
Each of the objects will be rotated.
Rotation of Objects in the Design Editor
The Rotation function in the Design Editoris the action of rotating the selected object(s) around an axis or center by the specified number of degrees.