Logon Screen Secondary Monitors Panel
Available in: Actual Window Manager, Actual Multiple Monitors.
The Secondary Monitors panel allows to change a background picture on secondary monitors of Logon Screen.
Show pictures on secondary monitors check box - mark it to activate the Actual Window Manager feature that changes background pictures on secondary monitors as well.
Slideshow Settings group - allows to set up slideshow for each secondary monitor:
monitor selector combo box - here you can select which monitor you'd like to set up slideshow for;
monitor settings group - here you can set up slideshow settings.
Hint
To display static picture on a certain monitor, just add a single picture file to slideshow playlist of that monitor.