The way to explain the / by function is to think of the spaces not the object. 6X will give you 6 equal spaces between 7 objects. In other words you will always have one more object than the number of spaces. If you want 5 copies equally spaced you must specify 4/, and so on.
Brilliant thank you was given this link by someone in the Forum. Been on free SketchUP for years but somehow still loose control over moves. Still wondering how to type in a move to an exact position specified in the three directions x y z
