[Zope] Q: symbolic link between folders/elements?

Hi everybody, this Object Oriented database stuff still fools me sometimes, I have a simple problem, but I can't get out of it. I have a Catalog, consisting of many nested instances of a folder-like python product I've made, and some Products that have to go inside the Catalog. How can I put the same product inside two (or more )different Catalog folders? (of course I don't want to copy it, it has to be the same, if I modify one the other(s) has(have) to change too). In my mind that looks like a symbolic link between Products (or folders). Is that possible? Thanks for helping me in this never ending quest for zope knowledge :-) |G|