Minimum requirement: Qubicle Basic Edition
Duplicate Special creates multiple, translated copies of a single object. It only works in the Model View.
Edit > Duplicate Special opens a window with the settings:
Number of Duplicates sets the total amount of copies after the operation. A value of three will produce two duplicates, for a total of three of the same object.
Translate X/Y/Z sets the distance each copy will be from another.
Duplicating an object with Duplicate Special: