This site is being deprecated.
Please see the official X‑Plane Support page for help.
There is a graphics setting to set a second monitor to only use a 2d panel view. However, most of the default X-Plane 11 aircraft no longer have a 2d panel option. Our goal for this version was to make all of the default aircraft have nice, 3d cockpits that are IFR ready.
If you would like to use the 2nd monitor to just view the 3d panel instruments, you can set that up by adjusting the offsets as outlined in the manual here.
This site is no longer being actively maintained.