• CellAutoOverwrite is an option for cells that determines if new output obtained by evaluating a cell should overwrite old output.
• For a cell to be overwritten, it must also have Editable True, Evaluatable False, and the notebook option OutputAutoOverwrite True. The output is deleted only when new output is ready to be inserted in its place. • Any sequence of cells with GeneratedCellTrue that follow the given cell are assumed to correspond to output. • CellAutoOverwrite is typically set for cells in Input style. • See also: GeneratedCell, CellEvaluationDuplicate, Deletable, OutputAutoOverwrite.
True, Evaluatable 