Rated 4 out of 5 stars

Good addon. works great except it has my monitor numbers backwards. When I send to monitor 2 via right click, it puts it to monitor 1 and vise versa.

This review is for a previous version of the add-on (2.0). 

Version 2.1 has an option for starting numbering with the monitor which has top-left coordinates 0,0 (this is usually the primary monitor). Monitors other than the primary monitor are always numbered top-to-bottom, left to right, because there is no way to detect how these are numbered by the operating system. Note that this means that a difference of 1px in the vertical position may change the numbering order.