mdelrossi I agree, the jpegs are a pain to remove, maybe have separate folders for the necessary jpegs and another for the raw files.
If you have mounted ASIAIR as an external Samba drive on macos, pick "Kind" as the Finder sorting mechanism, and you can simply select the FITS to download to other macos folders. I am sure Windows has the same facility.
ZWO is personel limited, and they are all dragged to work on useless new products like an ASIAIR inside a camera. Don't expect them to include a file sorting filter any time soon, if ever.
Chen