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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 all open document windows in your project horizontally.
Toolbar shortcut: 
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Tile Vertically
Tiles all open document windows in your project vertically.
Toolbar shortcut: 
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Cascade
Rearranges all open document windows in your project so they overlap in a cascade.
Toolbar shortcut: 
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Arrange Icons
Arranges the icons of any document windows you have minimized, neatly at the bottom left of the window.
Window List
Lists all open document windows.