Moving Windows Between Spaces
You may wonder how you can move a window to another space. There are two easy ways to do it.
First, simply drag the window to the edge of your screen and hold it there for a couple seconds. If there is a space on that side, your screen will move to that space and you can position that window in the space.
Another way to move a window to another space is click and hold down your mouse as if you were going to drag the window, but don’t move your mouse. With it selected and held, you can press the keyboard shortcut you have set to go directly to a particular space.
If you don’t know what your Spaces shortcuts are or would like to change your shortcuts, go to Expose & Spaces under System Preferences…