SUMMARY A keyboard shortcut for the "Next Wallpaper Image" on the desktop context menu would be very helpful.
*** Bug 408314 has been marked as a duplicate of this bug. ***
I'm also hoping this can be implemented. I've spent some time looking for a acceptable workaround and there isn't a good one I can see.
Have found a simple enough shell-based workaround for now which can be attached to a keyboard shortcut if desired. A new wallpaper is selected when you change the SlideInterval config item, so quickly changing it (then back again) via dbus does the job fine: nextslidescript='var allDesktops = desktops(); for (i=0;i<allDesktops.length;i++) { d = allDesktops[i]; d.currentConfigGroup = Array("Wallpaper", "org.kde.slideshow", "General"); var currSlideInt = d.readConfig("SlideInterval") d.writeConfig("SlideInterval", currSlideInt + 1); d.writeConfig("SlideInterval", currSlideInt) }; ' qdbus org.kde.plasmashell /PlasmaShell org.kde.PlasmaShell.evaluateScript "$nextslidescript"