Hi Tim
Crikey, I haven’t re-posted here for a while! Apologies for the very late response but, as Peter mentioned, his original expression didn’t work quite as he had hoped.
As my timescale was tight, I just did it the long-winded way. Basically, I divided however many objects I had in each orbit into 360 and then rotated them off axis by the appropriate amount (eg: 10 objects means the first at 36deg, the second at 72deg, etc).
So, it worked great but it was just fiddly and time-consuming. Note to self – must learn more about expressions…!
Hope that helps?
Best
Mark
Mark Lowe