Open an image for both players

I developed a module that has an Event roll and I have the table of events on a map window that is triggered to open along with the generation of the roll. But it only opens on the monitor of the player who clicked on “Event Roll”.

Is there a way to have an image open on both players’ monitors when the roll is generated?

Never really thought about it before and I may be wrong but I don’t think there is a way to do that. Is there?