Handles

Handles allow the manipulation of objects to become a lot easier. Using grouping in the Outliner, I have made the cone and sphere a child of the 2D circle found in 'curves/surfaces'. Now if I select the cone or sphere an manipulate either it will happen separately, but if i manipulate the circle both the cone and sphere will be manipulated along with it.

1. Create 2 separate objects.
2. Create the 2D circle.
3. Open the outliner, select both 3D objects created in the first step and drag to the 2D circle in the outliner using the middle mouse button.