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ctrl+k+d was added recently and was quite a big improvement but it's still hard to use because if you do one wrong cmd+d you'll have to either start again or use the mouse. the way cloud9 ace[1] handles this is better, since it keeps last added selection as active one and from there you can add selections with ctrl+alt arrows or remove with ctrl+alt+shift arrows


If you press ctrl+d one time too many, you can use Soft Undo (ctrl+u / command+u) to step backwards. Soft Undo undoes selection commands as well as modifying commands, as opposed to regular undo, which undoes modifying commands only.

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