[Zope] creating object from method

Hi all, Well, I didn't find it in the ZQR, I have a product which is able to create instantiate an object of a ZClass (using a factory). (so, I can add my special object from the Add list) In a dtml method, I want to create (instantiate) a new object of this ZClass.. I tried manage_addProduct... a little by hazard, but I don't find the right primitive to do that.... isn't there something like manage_addObject(ZClass, id...)????? Does anyone can help me? :^) thanks by advance Piotr.