We would like to use folders for storing data that belongs to Episodes. For a Episode is could be handy to store some data like, subject, start, stop, is closed.. For that would be helpfull to create a place in teh folders where we can add a ITEM_STRUCTURE, or so. Over there we could add some ELEMENTS.
Thomas Beale : "In future we should probably do what you say, and add some place to put data on the FOLDER object - e.g. FOLDER.details: ITEM_STRUCTURE or whatever. I suggest you raise a PR about that so we don't forget it. You could do that in your system now I guess, I don't think it would be a problem for the future, but to build the archetypes you would need a modified version of the AWB openEHR schema, which is easy enough to create."