I've just become aware of "MPO Canopus" and remembered I have a license to Astrometrica.
This is all getting very confusing, steep learning curve. Not really understanding what each piece of software does WRT generating light curves and what type of "photometry" this occultation stuff is exactly ...
I think I'm going to have to spend a lot of time reading and tinkering with:
- Astrometrica
- MPO Canopus
- IRIS
- CCDSoft
... in order to work out what exactly it is that I need. Hmm. And not give up part way through

Then again, I guess the next one I try might just work easily and I can ignore the rest