The pointer becomes an I-beam when it is moved over the active pane. In any other pane, it is an arrow. When a window is opened, Nisus displays it on the screen that contains the pointer. If you have multiple screens, you can open one window on one screen, move the pointer over to the second screen and open another window. The first window will be displayed on the first screen, and the second window on the second screen.
Dialog boxes display on the same screen as the pointer.