The success of this approach should work for everyone if it's done correctly. All you have to do is to move everything to the second monitor.
Now, if it has a left side dock, then that part will continue to open at far left, monitor one. This is why I said it depends on what theme you're using.
No, DesktopX has no function to natively go to second screen. DesktopX sees it as one big screen.
