Sorry, that was just a dash-off about caching. That happens when one doesn't think too hard before starting to write.

Ok, I'll reformulate the question: Would anybody provide tested examples on what strings to use in the text fields to enable a new caching policy manager's policy, to cache something like all images in a portal?

I'm stuck on this subject as all I get are error tracebacks, so instead of just fooling around asking the list whether there's a bug or not (as I already sent the parameters I used and the resulting traceback, with no response at all), I'd feel happy with just a few simple lines (examples) about the right tested way to use that tool.

id: images predicate... python: content.portal_type == "Image" mod-time (default): content/modified max age: 300 Works for me. No errors in adding, at the very least. The predicate could also use meta_type, or perhaps some method of the object that decided about caching or whatnot. --jcc