Placing windows on other virtual desktops

[digi123us]

I typically have 12 virtual desktops that I regularly switch between. Each desktop generally contains related programs. When I right-click on the title bar of a window and choose "To Desktop", I can place the window on a specific desktop, or I can choose "All Desktops" and have the window appear on all 12. What I would *really* like is to select 2 or 3 desktops and have the window appear on those desktops. As it stands, it seems that I can choose a single desktop or all desktops, not a subset of the desktops. Is there a way to select more than one desktop? In GUI terms, I'd like the choices to be checkboxes instead of radio buttons.