Rotation around the Z axe is sufficient
One click = select object(s)
Input Degre of rotation
One click on the object(s) for position of this vertical axe of rotation and base point for the insertion point
then the copy + rotation can begin :)
At a click in the empty 3D space the object is drawn under the cursor
Little video by Sdmitch http://sdmitch.blogspot.fr/
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