Have you ever wished you could undo just a portion of your sculpting without losing everything else that has been done on the model? Now you can! This brush uses your model’s Undo History but restricts the effect to the area where the brush is used. It can also be used in the other direction, projecting Redo History from part of one model to another regardless of any topology differences.

For more info, visit: http://pixologic.com/features