How to Use xenko to Realize the Same Computer Screen Split-screen Game
If the question is to be able to drag the desired window from the editor to another screen - it is necessary to expand the desktop to two(three) screens and drag and drop what you need within these screens. The editor window supports this actions.
Thanks for your answer. Actually，i want to know how to play a game in one screen.
For anyone looking for an example on how to do this, I have one here. Hope it helps!