Pilotboi From United States of America, joined Sep 2007, 2366 posts, RR: 10 Reply 1, posted (6 years 2 months 2 days 21 hours ago) and read 4797 times:
Good question. I'd like to know this as well, because if I ever wanted to do this, I would take it out of full screen mode and un-maximize the window, then resize it across multiple monitors. But I've seen pics of them across many screens at once, and no sign of being in window mode. Although, multiple computers, connected via 3rd party software were used, so I'm not sure.