what do you mean by that? for the wallpaper? just modify the .desktop file in your images folder to point to your new wallpapers.

something like this:

[Desktop Entry]
Type=Background Image
Name=name of image set
Hidden=True
X-
File1=/home/user/MyDocs/.images/file name.jpg
X-
File2=/home/user/MyDocs/.images/file name.jpg
X-
File3=/home/user/MyDocs/.images/file name.jpg
X-
File4=/home/user/MyDocs/.images/file name.jpg
X-
Order=01