Split Command
Use to divide the View window horizontally and work on two
parts of a program at the same time.
Use F6 and Shift+F6 to move between the windows:
■ F6 moves the cursor down through the windows.
■ Shift+F6 moves the cursor up.
To close a second View window, place your cursor in the
window that you want to keep active, and choose Split again.
To size the active window with a mouse, drag the window
boundary up or down.
To size the active window from the keyboard, use:
■ Alt+Plus(+) to expand it one line.
■ Alt+Minus(-) to shrink it one line.
■ Ctrl+F10 to expand it to fill the screen, or return
it to its former size.