warp and blend

Does anyone know if this is limited to displays managed by Mosaic or can it be used on any display connected to an Nvidia card ? I have working code for a system using 8 screens managed through Mosaic, but seem unable to modify this code to work on another setup where it is not possible to use Mosaic.

On the second system I can get it to warp (don’t need blend) the primary display, but can’t apply warping to any of the other connected displays. If apply a warp, those displays just go black.