New folder in “My docs” for redirection

On Active Directory Users and Computers, I have an OU with a Group Policy. On User Configuration, Windows Settings, Folder Redirection, there are some folders that is possible to redirect. In concret “My Documents” folder and “My Pictures” folder. Iwant to add some news folders like “My Pictures” into “My Documents”, for example “My films” and “My texts” and then I need to redirect It to a new location, specifiing the location for various user groups.
It’s possible to make that? (First add new folders on Group Policy and second redirect It for user grups?)
Perhaps I need to modify the Registry? Some ideas?

Thans a lot

Carles