[Zope] Inserting objects in acquisition chain

Hi, in a python product, I want to insert an (folderish) object into the namespace like this: parent_object subobject Now I want that parent_object behave like subobject would be it's sq_parent, all other things should stay the same (acquisition from objects higher in the tree etc...). No other bells and whistles needed, I need exactly what I depicted above. Any hints? cheers, oliver