Well, that is a magnificent reply. You are quite correct -I don't want a folder per photo, but I do want a folder per 'shoot', with date and time. I guess the charcater string, amended as you suggest, will do exactly that for me - so, many thanks because I could not have comjured up that character string after a week of blue moons examining my trusty text of how to mangle metaphors.
I would like to try thinking a little wider on this: as they say 'give a man a fish and he can eat for a day, but teach him how to fish and he'll sit in a boat and drink beer all day'. So, I would like to be able to fish in the 'variable' waters of Photo Mechanic, so that I don't have to be posing relatively dumb questions like this again. But I didn't see anything about the semantics, syntax or grammar of these variables. Where do I find that information?
Cheers
XEB