[Zope] Packing and importing with ZODB3?

Hi all, I'm trying out a CVS version from last night (GMT) and am having trouble packing the database, I've imported a lot of files and would like to pack but nothing happens when you click the pack button. I know that some of the DB management features are not yet available but is there anyway of packing other than using the pack button. On another note I'm having trouble importing a ZODB3 exported 'portion' of another db, I have ZopeCVS running on my machine at home and wanted to import some stuff to a machine running ZopeCVS at work and it's a no-go, any ideas. TIA Phil phil@philh.org