I would like to propose a folder specific rule for wallpapers.

All my wallpapers are stored in a single folder with a folder inside that has wallpapers for multi-monitors.
Normally I use a profile for random individual wallpapers on each monitor.

What I would like to see is a rule where I can set a folder to handle the wallpapers within a spanning wallpapers across my monitors.

So when a wallpaper change happens and selects an image from that folder, it will span the image to my other screen(s).
The time used would be the screen that selected the image.

When it's time for a new image and is not one from the "spanning" folder, the other screen(s) will be allowed to restart their rule.
Of course if the other screen(s) select a "spanning" wallpaper when they restart their rule the process above is repeated (an option to only let one screen be allow to set "spanning" wallpaper would be nice).

Awesome ^_^