[racket] Slideshow on secondary monitor

> Does anybody know of a way to tell Slideshow to run fullscreen on a
> secondary monitor?
> I couldn't find help in the Help Desk nor slideshow --help.
> For now I could workaround by setting the projector as the main monitor and
> then dragging the comments window to my netbook's monitor.

shift-right/leftarrow or alt-right/leftarrow moves the presentation
window. Is that insufficient?