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Split
Toggles splitting the Code window in half horizontally. Only available when the Code window is active.
Toolbar shortcut: .
Tile Horizontally
Tiles the Object and Code windows and the Object Browser horizontally when you are in MDI mode.
Toolbar shortcut: 
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Tile Vertically
Tiles the Object and Code windows and the Object Browser vertically when you are in MDI mode.
Toolbar shortcut: 
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Cascade
Rearranges the Object and Code windows and the Object Browser in your project so they overlap in a cascade. Available only in MDI mode.
Toolbar shortcut: 
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Arrange Icons
Arranges the icons of the windows you have minimized, neatly at the bottom left of the window.
Window List
Lists all open form windows.