Windows 7: Can "my themes" be set to randomize like Windows 7 stock wallpapers?

Under Personalization and my themes I have numerous wallpapers. Each overall theme for each wallpaper is the same, i.e. each wallpaper uses the same sound scheme, screen saver and window color. Because each wallpaper has the same general setting paired with it, I would like to be able to have my system rotate the wallpapers much like it already does for the stock Aero themes.

Personalization > Desktop Background

Select as many wallpapers as you like and check "Shuffle" next to "Change Picture Every"

that was simple

thank you very much, my issue is solved.