I just sent ATI an email about this last week. There statement was that light studio would not allow for a true lunar cycle. The option they gave me was to create multiple profiles and just change the profile every week. So you would have three or more profiles, one being no moonlight, one being slight moonlight, one being a little more moonlight and so on.
I also asked if there was any plan on updating light studio to perform lunar cycles and they stated they did not believe there was as the engineers in Germany didn't see a real need for this function.
They did tell me one cool thing I could do. Since I am running the 60" module I could program the four clusters to have the moon rise on one side of the tank and then move across the sky and set on the opposite. Would be kinda cool but don't know if I want to have multiple profiles that I have to change out every few days to accomplish it though.