[Zope] Folders, one more time!!

Hi, There is a lot of questions about Folders on the list in our days..... I got one too... ;^) I would like to make a SpecialFolder, with its own methods and objects. I tried doing it by using products and ZFactories, but I do not manage to insert my special Folders as a normal Folder in the hierarchy Zope.. Is there a simple way to do it, I mean having my SpecialFolder in the Add list, and when adding it, inserting it in the zope hierarchy as a Folder which can be managed, with object by default. (I hope I have been clear.... but not sure)! A great thanks to any people who would be able to help me....... Pierre PS: can I find somewhere the list of DTML functions (as manage_addProduct and such functions...)