It was nothing Joe, it's a pleasure to be able to try to help you.
Yes, you can use the shortcut you mentioned, or move them by dragging them with the mouse.
When we have more than one monitor and we extend the image, the monitor must be accessible from one side of the main monitor, that is, when moving the mouse it must go to the other side in one of the directions.
With that, just click on the top of the window you want to move, hold it, and drag it to the other monitor, that's another way too.