[Zope] Defining and creating a temporary storage for each user

Hi all. My work environment is Zope 2.7.x I would like to create a different temporary storage for each user. Of course, I can't simply write them in the zope.conf. Users should have their own storage, so that they can create/modify objects inside that, without influencing the general, shared database. Is this configuration possible? I've seen I could manipulate entries in the dbtab object, but I'm not sure this is safe after the first startup. Regards Marco