This question has been answered in previous posts with official responses, please use the search function prior to creating a new post as more often than not, you will find that your questions and ideas have already been posted.
I will go ahead and close this thread, please feel free to click the links and join in on the already active discussions.
Both of these links were found by typing "Monitor" into the search function:
https://www.pantheonmmo.com/content/forums/topic/2316/multi-monitor-support-and-16-10
https://www.pantheonmmo.com/content/forums/topic/4056/multi-monitor-support (closed for the same reason as this thread)