Notwithstanding the close reason, the answers volunteered for this question are supernal, inestimable and efficacious, and would truly help many others. Thus, Would you please move this to softwarerecs.stackexchange.com/search?q=multiple+monitors?

Supplementary: Thanks. How can I obtain the input/what was typed, so that if the author here doesn't post there, I can repost his//her superlative, sterling answers and pictures?