Is it possible to add makernotes (that of course are found by exiftool and printed in plain text) and send them to an xmp:dc subject tag. with custom formatting. Like Makernote Type Name 1: Tag Value
Excuses for the late reply, I guess I missed this post...
Anyway, are you looking to add a selected number of makernote tags this way, or simply all? The latter will be hard to implement, but the first can be done e.g., like this:exiftool -subject'+<${MakerNoteTAG; $_ = qq(MakerNote TAG: $_)}' FILE
(replace the single quotes by double quotes if you're on Windows)
You can add multiple tags in one go this way.