[GTALUG] Ubuntu Studio ver 22.04 Desktop (KDE) does not seem to allow for images spanning multiple screens

Hi For the record I am using Ubuntu Studio 22.04 with a KDE desktop (Plasma version 3.0). Unless I am missing something major, I don't see a way that KDE Plasma allows for expansion of a desktop graphic across two screens. Graphic dimensions I have in mind are something like: 3840 x 1080. When I load the graphic for the desktop in the settings, I just get the graphic on one screen. If I select the jpg from the file manager (Dolphin) to set as wallpaper, I get duplicate graphics on each monitor, rather than the same graphic spanning both monitors, which is what I want. If anyone can be of help I would appreciate it. Paul