Georg,
Sorry I missed your post. Some comments (maybe I misunderstand what you are asking for):
- The script needs luminance to detect stars and fit star profiles, it won't work directly on CFA. Having the script accept CFA would require the script to have all Cal/BPP machinery. IMO not feasible, not maintainable.
- Simple time indexing is possible I think, but at least for me not too useful because I use an exposure scheduler, so basically all my subs are time approved. Criteria is complex (sun/moon rise/set times, twilight times, target transit times, pre/post mount flip avoidance, refocus overhead included, overhead for flats included, etc).
Mike