and one more one more thing
i don't know if this qualifies as a bug or as a feature request, but i see that the script always overwrites files. i have some older canon RAW files that i've been reprocessing, and at the time i captured these lights, the filenames were generated as IMG_NNNN.CR2. if i have 2 files with the same name, the last one in the list overwrites any prior ones with the same name.
i thought i might get around this by doing Add Custom and assigning a bogus filter name to each night's files. however, when i do this, the lights do not show up in the list unless i add them twice, the 2nd time with a different filter name. at that point the script says the file was already added with a different filter name and displays the file in the list. finally, i then need multiple flats. if i try to add the same master flat with different filter names in Add Custom, it is not added to the list. that's probably the correct behavior though and i can easily duplicate those files at the filesystem level...
i originally tried to get around the multiple lights with the same name problem by making symbolic links to the files, but adding the files to the script causes the symlinks to be dereferenced. this might be an OSX issue more than anything else though.
can we get an option to uniquify calibrated/debayered/registered output filenames in the script?