How can i bind command for changing wallpapers? (Slideshow)

I see a button on context menu, but i can’t find a bind in settings to bind wallpaper changing.

There already a question without answer on reddit: https://www.reddit.com/r/kde/comments/1bz6r36/bind_change_wallpaper_using_slideshow/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button