You can split the editor pane into two horizontal views of the same method; that is, you can split the editor pane horizontally into two panes and then control each pane separately.
You can scroll these views independently, to view and edit different parts of the active document at the same time.
Any changes that you make in one view are reflected in the other.
To open or manipulate the second view, perform one of the following actions.
Position the mouse cursor on the split bar just above the status line so that it changes to the resize pointer and then click and drag the split bar to where you want it positioned.
Use the Shift+Ctrl+W shortcut keys to open or close (that is, toggle) the lower view.
Use the Ctrl+W shortcut keys to open the lower view if it is not already open or to switch focus between the two views if the lower view is already open.