Some objects (but not controls) can be rotated. Built-in rotate-capable objects include line, polyline, ellipse and (rectangular) border, but system integrators may add in their own rotate-capable objects (or reduce the built-in set.) Besides being able to set the "RotateAngle" property directly in the Property Sheet, it also available in the Format Bar in a editable combo box which also contains rotations to 0, +90 and -90 degrees.

In free rotate mode (toggled by clicking the Free Rotate icon in the Format Bar), the drag handles of the selected object turn into circles, and the object can be rotated about its center by dragging any one of these handles. Free Rotate mode is exited by completing a rotation, by toggling the same icon or by making another object selection.
"Unrotate" sets the object back to 0 degrees. "Rotate Right" rotates the object clockwise by an additional 90 degrees.