Is it possible to load one scene onto a separate computer monitor say if you had a dual monitor display set up?
You mean a scene into each monitor? As far as i know, no. You’d need to have two instances of the editor running.
There’s at least two ways of utilising dual monitors that I have used in the past:
a.) Load two instances of the game, manually specifying the individual monitor for each instance. Communicate between them using a network manager running on the localhost.
b.) Create a single wide scene at a custom resolution whose width is the combined resolution displayed over both monitors. Set the desktop to extended mode and let the game run in windowed mode at the custom resolution (with -popupwindow to get rid of the title bar). I explained this more in this blog post: Creating a Unity game stretched over Two Monitors | Alastair Aitchison