How do I add a folder or all images in a folder to Compiz Wallpaper's background list?

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http://askubuntu.com – I have over 100 images in my backgrounds folder. Is there an easy way to have Compiz Wallpaper use all images in a specified directory? Or is there a way to add all images easily from a folder to this list of background images? Adding each image at a time would be a time consuming task. I am using Ubuntu 12.04. Thanks in advance, menturi (HowTos)