Matt

This seems to be a pretty complex way of keywording your images - to use these presets. Why don't you just keyword and describe one image in the Library Module and then sync across to the other ones that are very similar. I generally do that for the common keywords and then go to each image and add a few specific keywords about that one photo - it is not often that 100s of images deserve the exact same keywords.

Back to your main question - I find that if I fill in the Title, Caption and Keywords in Lightroom, it populates all the appropriate fields in the 20 or so stock agencies that I use via Lightburner. Alamy is always going to put your keywords in the bottom group, but that is just the way it is.

Steve

It is right that the agencies suck the data from different fields. Its annoying.

I've never had an issue with this, and I submit to 20+ agencies. Which ones give trouble?

Steve

there are multiple fields that agencies pluck to use as title

the possible title fields are
iptc: objectname or headline
xmp: title or headline

i finally got data accepted at all agencies by adding the 2 iptc fields in exiftoolgui,  then using ' modify/copy to xmp' function

the microsoft pro photo tools, they use xmp title and ignore the iptc fields

agencies where i had problems previously were DT, pond5, photodune, fotolia and 123 - possibly others - none of them ever responded to my requests to learn the exact fields they were using