Hi guys. When importing a package with fuel, I am sending SystemChangeNotifier uniqueInstance classAdded: aBehavior inCategory: category asSymbol. for EACH class ... that is really slow. so...as part of GSoC we will try to improve this. I would like to do bulk events, that is, one even that receives a list of items rather than one. I don't know anything about SystemChangeNotifier nor SystemAnnouncer. So, we would relaly appreciate some help/hints of how can we implement this. Maybe an example would help. Thanks! -- Mariano http://marianopeck.wordpress.com