This site is being deprecated.
Please see the official X‑Plane Support page for help.
Hi yindengxie,
I am not with Laminar Research; just a flight simmer.
From what I interpret what you want to do is run three screens so that they give a close impression of a single screen. This is known as Bezel correction.
Have a look at the following links created by Russ Barlow at https://www.youtube.com/watch?v=OJ0GItVWHxQ and https://www.youtube.com/watch?v=WhosGYgREQs and https://www.youtube.com/watch?v=a7LfXqpi-I8 and https://www.youtube.com/watch?v=PjdgOBJ5xkQ
Hope this helps.
Glenn
This site is no longer being actively maintained.