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  • CellAutoOverwrite is an option for Cell which specifies whether new output obtained by evaluating this cell should overwrite old output.
  • Any sequence of cells with GeneratedCell->True which follow the given cell are assumed to correspond to output.
  • The output is deleted only when new output is ready to be inserted in its place.
  • CellAutoOverwrite is typically set for cells in "Input" style.
  • See the Mathematica book: Section 2.10.9.
  • See also: GeneratedCell, CellEvaluationDuplicate, Deletable.